Abstract: A photovoltaic system and a leakage current control method for the photovoltaic system includes at least one photovoltaic module group, at least one photovoltaic inverter, a grounded metal frame, and a sampling control unit. The photovoltaic module group is mounted on the grounded metal frame. An output end of the photovoltaic module group is connected to an input end of the photovoltaic inverter, and an output end of the photovoltaic inverter is connected to a power grid. The sampling control unit is coupled to both the photovoltaic module group and the photovoltaic inverter and is configured to detect a current value of a leakage current formed by a common-mode voltage of the photovoltaic inverter on a parasitic capacitor. Herein, the parasitic capacitor exists between the photovoltaic module group and the grounded metal frame.

Abstract: A system can include a plurality of sequencers each configured to provide a number of sequenced output signals responsive to assertion of a respective sequencer enable signal provided thereto. The system can include chaining circuitry coupled to the plurality of sequencers. The chaining circuitry can comprise logic to: responsive to assertion of a primary enable signal received thereby, assert respective sequencer enable signals provided to the plurality of sequencers in accordance with a first sequence; and responsive to deassertion of the primary enable signal, assert the respective sequencer enable signals provided to the plurality of sequencers in accordance with a second sequence.

Abstract: A method for assisting control of an electrical supply grid) or a portion thereof is provided. The method includes recording system states of the grid and/or influencing the grid, transmitting the states to a central evaluation and/or control unit and/or between other subscribers, including wind turbines and/or wind farms that supply the grid, for use in controlling their supply to the grid. The method includes controlling the grid on the basis of the transmitted states. Fundamentally identical states are simultaneously recorded at multiple recording locations associated with the grid and the recording of at least one of the states at a respective recording location is performed by a turbine and/or farm and the turbine or farm recording a state at one recording location and the turbine or farm recording a state at another recording location are independent at least such that they supply to the grid at different points.

Abstract: The invention relates to a method for controlling the operation of an energy storage system (10) in a vehicle (30), preferably an electric or hybrid electric vehicle, said energy storage system (10) comprising at least two battery packs (12) connected in parallel, said energy storage system (10) being adapted to provide at least a nominal power functionality for propulsion of said vehicle (30) using an allowed operating extent of all of said battery packs (12) of said energy storage system (10), said allowed operating extent being a nominal working range of said battery packs (12); said method comprising disconnecting at least one battery pack (12); and setting said allowed operating extent for said remaining connected and active battery pack(s) (12) to an increased working range so as to enable said energy storage system (10) to provide said nominal power functionality to said vehicle (30), the method further comprising monitoring at least one accumulated parameter indicative of the operation of said energy

Abstract: A vehicle power supply device includes a first DC/DC converter, a DC/DC controller, a second DC/DC converter, and a vehicle controller. The first DC/DC converter converts a voltage output from a power source, and outputs the converted voltage to a first load. The DC/DC controller controls an operation of the first DC/DC converter. The second DC/DC converter operates by electric power supplied from the power source, and converts the voltage output from the power source and outputs the converted voltage to the DC/DC controller. The vehicle controller controls the DC/DC controller and the first load by supply of the voltage output from the first DC/DC converter and the voltage output from the second DC/DC converter.

Abstract: The invention described herein generally pertains to a system and method for a welding device and, in particular, a hybrid welding device, that leverages a renewable energy source for a source of electrical current. The welding device can include one or more renewable energy kits that harvest renewable energy sources for performing a welding operation or a powering at least one of a device or component external to the welding device. The welding device includes renewable energy component that collects an input to convert to an electrical current that can be used as a replacement current, a supplemental current, or a complimentary current.

Abstract: The present environment controller is adapted for being powered in low-voltage daisy-chained power configuration. The environment controller comprises a low-voltage daisy-chainable power supply comprising a Power Factor Conversion (PFC) flyback converter. The low-voltage daisy-chainable power supply receives a low-voltage power and outputs a high PFC low-voltage power for powering the environment controller.

Abstract: Examples described herein include systems and methods for multiband harvesting. An example system may include a single wideband antenna followed by several narrowband rectifier chains. Each rectifier chain may include a bandpass filter, a tuned impedance matching network, and a rectifier. The outputs of the rectifiers may be combined using a summation network. The summation network, which may be a diode summation network, may in some examples provide good performance even when only a subset of the narrowband harvesters (e.g. a subset of the rectifier chains) is excited.

Abstract: Provided is a structure which is capable of central control of an electric device and a sensor device and a structure which can reduce power consumption of an electric device and a sensor device. A central control system includes at least a central control device, an output unit, and an electric device or a sensor device. The central control device performs arithmetic processing on information transmitted from the electric device or the sensor device and makes the output unit output information obtained by the arithmetic processing. It is possible to know the state of the electric device or the sensor device even apart from the electric device or the sensor device. The electric device or the sensor device includes a transistor which includes an activation layer using a semiconductor with the band gap wider than that of single crystal silicon.

Abstract: A hybrid energy storage system is configured to control pulsed power. A first dynamo-electric machine is coupled to an inertial energy storage device and has multiple input stator windings configured to accept input power from a source. A polyphase output stator winding is configured to deliver electric power having a first response time to a DC bus. A secondary energy storage system is coupled to the DC bus and is configured to convert its stored energy to electric power in a bidirectional manner. A second dynamo-electric machine has an input stator winding and at least one polyphase output stator winding coupled to a converter, the converter coupled to a DC output. A polyphase boost exciter is configured to derive energy from the DC bus and excite the second machine tertiary stator winding, wherein the second machine is configured to be excited at a faster rate than the first response time of the first machine.

Abstract: A power generation system, apparatus and method to buffer power fluctuations are provided. At least one inverter (14) may be coupled to a photovoltaic power generator (10). The inverter may be subject to at least one operational constraint. A power-buffering circuitry (16) may be connected between the photovoltaic power generator and the inverter to buffer power generation fluctuations which can occur in power generated by the photovoltaic power generator, and satisfy the operational constraint of the inverter notwithstanding an occurrence of the power generation fluctuations. A controller (14) may be coupled to the power-buffering circuitry and may be responsive to the parameter of the photovoltaic power generator to perform at least one control action regarding the power fluctuations. Control actions may be performed by the controller independently of a control strategy of the inverter.

Abstract: A hybrid power system is disclosed. The hybrid power system may include a primary power source configured to provide a primary power, and an energy storage device coupled to the primary power source, the energy storage device configured to store excess primary power provided by the primary power source. The hybrid power system may further include a variable speed genset, the variable speed genset including a secondary power source configured to operate at a variable rotor speed to provide a secondary power responsive to power requirements of a load. The hybrid power system may also include a central controller communicatively coupled to the primary power source, the energy storage device, and the variable speed genset, the central controller configured to control the primary power source, the energy storage device, and the variable speed genset based on the power requirements of the load.

Abstract: A linear alternator to supply the electrical utility needs of homes and small businesses comprises a radial arrangement of five cylinders around a common crankshaft. Mechanical input power is applied to the crankshaft for conversion to electrical output power. Each of the five radial cylinders is in itself a single linear alternator in which four sets of equally spaced shuttle magnets are arranged head-to-toe and separated by spacers and insulators. The shuttle magnets are mounted as an assembly on a rod independently driven by the crankshaft such that each of five rods can correspondingly move back and forth inside four matching sets of equally spaced pickup coils. Alternating currents from each of the twenty total pickup coils are individually rectified, filtered, and regulated to charge banks of batteries or ultra-capacitors. Solid-state inverters can be connected to the batteries or ultra-capacitors to produce utility grade AC power, or DC power outputs can be tapped directly.

Abstract: A downhole power supply is provided that includes an energy storage adapted to operate at high temperatures, and a rotary inertial energy generator to capture the shock energy and vibrational energy of downhole movement of the drill string. The energy storage may include at least one ultracapacitor.

Abstract: A power regulation system for an electrical grid has a store of electrical energy connected through a first switch to a source of electrical energy. The response time of the store is faster than that of the source. A second switch is connected to the store at one side with the opposite side for connection to the grid. A first controller monitors energy stored in the store and energy available from said source and selectively controls the first switch to close to transfer energy from the source to the store. A second controller monitors energy stored in said store and, on receiving an indication that additional energy is needed in the grid, if the energy stored in the store exceeds a supply threshold, controls the second switch to close to transfer energy from the store to the grid.

Abstract: A flywheel interface system for line interactive power correction comprises a flywheel system that includes a flywheel coupled to rotate with a motor/generator. A passive rectifier is coupled to the flywheel system for converting alternating current generated by the flywheel system to direct current. An active inverter is coupled to the passive rectifier for converting the direct current from the passive rectifier to alternating current and to output the alternating current to the load. A motor drive is coupled to the motor/generator of the flywheel system for driving the motor/generator to rotate the flywheel, the motor drive including a second passive rectifier coupled to a second active inverter.

Abstract: A dual generator system includes a main generator and an auxiliary generator. The main generator generates at least a first phase main output and a second phase main output. The auxiliary generator generates at least a first phase auxiliary output and a second phase auxiliary output, wherein the first phase auxiliary output is combined with the first phase main output to generate a first phase main output. An auxiliary generator control unit (AGCU) monitors the first phase combined output and the second phase combined output and in response independently regulates the first phase auxiliary output and the second phase auxiliary output.

Abstract: A system and method for supplying power to a variable speed motor for rotating a shaft may include generating an A/C output having a variable frequency corresponding to speed of a prime mover, where the speed of the prime mover is equal to or greater than a predetermined speed limit. The A/C output of the prime mover may be distributed to the variable speed motor such that the speed of the variable speed motor is varied relative to the frequency of the A/C output. The variable speed motor may be electrically disconnected from the A/C power when the speed of the prime mover being used to drive the variable speed motor is equal to or within a predetermined range of the predetermined speed limit. An alternate A/C output may be distributed to the variable speed motor after the A/C power is electrically disconnected from the variable speed motor.

Abstract: A deployable portable solar system is provided. The portable solar system provides power for industrial use situations. The portable solar system contains solar cells, one or more charge controllers, one or more battery banks, DC to AC inverters, and a disconnect. Optionally, the solar system contains a backup AC generator, one or more transfer switches, a backup DC generator, a utility line connection, one or more transformers, and a variable frequency drive.

Abstract: In an uninterruptible power supply apparatus, a common mode current flowing from nodes (N1 to N3) to a line of a ground voltage (GND) through a stray capacitance (41) of a battery (40) is limited by a common mode reactor (34), and the low-level common mode current passing through the common mode reactor (34) is caused to flow to a virtual neutral line (NL) through a common mode capacitor (37). Therefore, the level of noise caused by the common mode current can be reduced.

Abstract: An output-power control apparatus is provided in an electric power system connecting a secondary battery system and a power generator in parallel, and controls output power of the electric power system. The output-power control apparatus detects output power of the power generator, and controls output voltage of the secondary battery system, based on a value obtained by subtracting the detected output power of the power generator from an output power instruction for controlling the output power.

Abstract: An anti-islanding implementation that introduces a small, continuously varying phase shift pattern in the output current of an inverter. In grid-connected mode, this phase shift pattern has no impact on the frequency of the inverter's output voltage. However, when islanded, the phase shift will cause the voltage frequency to deviate from nominal. Changes in the output current phase thus correlate well with the voltage frequency, so a covariance index is used to detect an islanding configuration. When this index exceeds a threshold, a larger phase shift pattern is introduced in the output current, large enough to cause the voltage frequency to fall outside the inverter's trip protection window without compromising the inverter's power quality yet ensuring reliable tripping of the inverter.

Abstract: There is provided a power control method for secondary batteries constituting, in a grid connection system supplying electric power to a power system by combining a power generator where output power fluctuates with a power storage compensator, the power storage compensator and compensating fluctuation of output power of the power generator. The method includes the steps of: dividing the secondary batteries into a “constant power control” group and a “demand responsive” group, and distributing predetermined constant input-output power out of power to be input and output provided to all the secondary batteries in order to compensate fluctuation of output power of the power generator to the “constant power control group” and the remaining input-output power to the “demand responsive” group to control input-output power of the secondary batteries respectively depending on the belonging groups.

Abstract: A method for regulating a wind energy installation including a rotor-driven generator, a converter connected to the generator, and a controller that regulates power emitted into an energy transmission system to within a limit value involves determining a maximum current value in a connection path, determining a current reserve value for power emitted into an energy transmission system, and determining a correction value for following a limit value of the emitted power from the maximum current value and the current reserve value. The wind energy installation and the method for its regulation also includes the use of a limitation device configured to set a phase angle between an emitted current and voltage of an electrical system in response to a selection signal in such a way that primarily active power or primarily reactive power is fed into the energy transmission system when the maximum current value is reached.

Abstract: An energy storage system, more particularly to a power distribution system for providing power for an indeterminate period of time. The power distribution system comprises means for converting the energy from an alternator to AC/DC circuits. The alternator transmits electric current to a battery, where an inverter is electrically connected to the battery and transmits AC power to low-load circuits. A DC control panel is connected to the battery and transmits electric current from the battery to low-load DC circuits. The power system is part of a portable toolbox. The system is connected to a vehicle's charging system or any mechanism having a alternator a first battery an engine and a starting system an would continually recharge it self.

Abstract: A power distribution system is provided for supplying power to a variable speed motor for rotating a shaft. The system comprises a variable speed prime mover adapted to generate an A/C output having a variable frequency corresponding to the speed of the prime mover, a power switch, a power distribution bus connected to the A/C output of the prime mover and connected, via the switch, to the motor such that the motor's speed is varied relative to the frequency of the A/C output, and a variable frequency drive operatively connected to the A/C output of the prime mover via the bus and effective to provide an alternate A/C output to the motor after the motor is disconnected from the bus. The switch is adapted to disconnect the motor from the bus when the prime mover's speed is equal to or within a predetermined range of the prime mover's speed limit.

Abstract: In various embodiments, various systems and methods are provided for power distribution. In one embodiment, power distribution apparatus is provided comprising a power multiplier comprising a multiply-connected electrical structure, and a plurality of power network couplings in the multiply-connected electrical structure. The multiply-connected electrical structure is a resonant circuit tuned to a nominal frequency of a power network.

Abstract: A multiple bi-directional input/output power control system includes a network of functional blocks housed in a single enclosure, providing DC power to one or more DC loads, and providing control and internal pathways, sharing one or more AC and/or DC power inputs. The system feeds back AC power from the DC power source into an AC input connection, and the fed-back AC power is shared by other AC loads. The system operates at least one alternative source of DC in a dynamic manner, allowing maximization of power generating capability at respective specific operating conditions of the moment. Power isolation may be handled by an AC isolation block right at a power input. Therefore all other blocks within a multi-function power control unit (MFPCU) are isolated from AC ground.

Abstract: In a cycloconverter generator equipped with an AC power generator that generates single-phase AC power to be supplied to a load by turning on positive and negative switching elements at variable timing every half-period of a desired AC power frequency based on a phase signal and a DC power generator that generates DC power by turning on the positive switching elements in accordance with a timing determined by desired DC voltage, there is installed with a selection switch that is installed to be operable by an user and produces an output indicative of a result of the user's selection between the AC power and DC power thereby enabling to the user to easily select either one of alternating current and direct current.

Abstract: The disclosed system includes a metering device for monitoring electrical power grid conditions, a controller for determining if the metering device is detecting a condition on an electrical grid that is indicative of a delayed voltage recovery event, and a communication device for communicating with one or more remotely located bi-directional power source modules connected to the electrical power grid, wherein the controller is programmed to send a notification via the communication device to the one or more remotely located bi-directional power source modules if the controller detects a condition indicative of delayed voltage recovery event. In some embodiments, the metering device includes a grid metering device. In some embodiments, the metering device measures power factor, and a change in the voltage and ratio of VARs to Watts.

Abstract: In one technique of the present invention, DC electric power from a DC bus is inverted to provide AC electricity to one or more electrical loads, and AC power from a variable speed generator is rectified to provide a first variable amount of electric power to the DC bus. This technique also includes determining power applied to the electrical loads, and dynamically controlling the amount of power supplied from the generator and an electrical energy storage device in response to the power applied to the loads.

Abstract: A wind turbine generator control system is provided for controlling output of a plurality of tightly-coupled windfarms connected at a point of common coupling with a power system grid. A master reactive control device employs algorithms whose technical effect is to coordinate the real power, reactive power and voltage output of the multiple windfarms. The controller incorporates a reactive power regulator that can be used to regulate reactive power, power factor or voltage at the point of common coupling and an active power regulator that can be used to regulate real power at the point of common coupling; such that each windfarm is not asked to contribute or violate its own operating capability.

Abstract: The invention relates to a method and device for injecting current during a mains supply voltage dip. The inventive method consists in permanently monitoring the magnitude and phase of the mains supply voltage and, upon detection of a voltage dip, injecting reactive current in the affected main supply phase(s) in a manner that can vary over the duration of the voltage dip, at very short intervals, proportionally to the magnitude of the dip, thereby absorbing the necessary active current. The device comprises a voltage measurement switch, a transformer (low voltage/medium voltage), a DC/AC inverter, a capacitor, a voltage dip detection circuit, and a control circuit.

Abstract: A power unit connected to a power distribution bus operates in one of several modes to either store excess electrical energy from the power distribution or supply electrical energy to the power distribution bus to account for a detected demand/need. The power unit includes turbomachinery having components connected via a shaft, a generator connected to convert rotational energy associated with the turbomachinery to electrical energy for distribution on the bus, and a motor connected to convert electrical energy distributed by the bus to motive energy used to accelerate the turbomachinery components. A power controller monitors the voltage on the distribution bus. In response to excess voltage on the distribution bus, the power controller connects the motor to the bus to cause the excess electrical energy to be converted to motive energy that is used to accelerate the turbomachinery.

Abstract: A photovoltaic power system can include a photovoltaic array, an inverter, and a battery.

Abstract: Methods and systems for energy management system for a vehicle are provided. The system includes a first power source configured for cranking an engine wherein the first power source includes a switch configured to electrically couple the first power source to a starter for the engine and wherein the first power source is electrically isolated from auxiliary onboard loads. The system further includes a second power source configured for supplying auxiliary on board loads, a charging subsystem electrically coupled to the first and the second power sources. The charging subsystem is configured to supply charging current to the first and the second power sources. The system further includes a controller configured to maintain the first power source in a substantially fully charged condition and supply the auxiliary loads from the second power source.

Abstract: This disclosure relates to transient energy systems for supplying power to a load substantially instantaneously on demand. Transient energy systems may include a flywheel coupled the rotor of an induction motor generator. One embodiment of the disclosure refers to systems and methods for reducing loads on a bearing in a transient energy system. In another embodiment, the disclosure refers to an induction motor generator that is optimized for high power transient power generation, yet low power motor operation. Yet another embodiment of the disclosure refers to using a flywheel as a drag pump to cool components of a transient energy system. In yet another embodiment, a slip control scheme is discussed for regulating a DC bus. In yet a further embodiment of the disclosure a method is provided for reducing unnecessary turbine starts by making turbine start a function of the rotational velocity of a flywheel.

Abstract: A device for controlling a single-phase power conditioner for a renewable energy system is disclosed. The device comprises: a power system, providing alternating current (AC) utility power; a renewable energy system, using a natural resource so as to generate direct current (DC) power; a DC-to-DC converter, accepting the DC power generated by the renewable energy system so as to convert an input DC voltage of the DC power to an output DC voltage at a voltage level different from the DC input voltage; a grid-tied power conditioner, transforming voltage levels of the AC power and DC power; a controller, issuing a control signal for controlling the grid-tied power conditioner; and a load, consuming electricity by way of the grid-tied power conditioner.

Abstract: A control methodology for an engine-driven electric machine of a hybrid vehicle electrical system for enabling continued operation of the vehicle electrical system under failure mode conditions that require disconnection of the battery pack from the electrical system. At the onset of a failure mode condition requiring disconnection of the battery pack, the electric machine is operated as a generator and controlled in accordance with a first mode of operation such that its output substantially matches the instant electrical load requirements of the vehicle without supplying charging current to the battery pack. When the battery pack current falls below a near-zero threshold, a relay is activated to disconnect the battery pack from the electrical system, and the electric machine is then controlled in accordance with a second mode of operation for maintaining the operating voltage of the electrical system at a specified value.

Abstract: Power supply devices for vehicle electrical systems in particular, including two voltage systems, i.e., vehicle electrical systems, each having its own generator. The first generator and the battery belong to the same voltage system, and the second generator belongs to the second voltage system. If the two voltage systems were decoupled, the second generator would not have the excitation current required for starting, so means are consequently provided here to connect the second generator to a charge storage device after actuation of the ignition switch, thereby generating an excitation current; this charge storage device may also be the battery of the first voltage system and the connection is kept conductive until the second generator starts and is generating an output voltage.

Abstract: A control system suitable for use with a bathing unit system having a water receptacle is provided. The control system comprises a heating module, a power source and a controller in communication with the heating module and the power source. The power source includes an energy storage member for storing energy collected from a solar panel, and is operative for supplying power generated from solar energy to the heating module. The controller is operative for causing the power source to supply power to the heating module at least in part based on first information derived from a temperature of the water within the water receptacle and second information derived from a condition associated with the power source. The controller is further operative for selecting between a first power source and a second power source for supplying power to the heating module.

Abstract: Systems and methods for adjusting outputs of dynamoelectric devices, such as alternators, are provided. The outputs of the dynamoelectric devices may be balanced to facilitate load sharing among the devices. The outputs may be balanced by monitoring field signals associated with the dynamoelectric devices and controlling the field voltages of the devices. The outputs may also be adjusted to supply the load in dissimilar proportions.

Abstract: A wind powered turbine with low voltage ride-through capability. An inverter is connected to the output of a turbine generator. The generator output is conditioned by the inverter resulting in an output voltage and current at a frequency and phase angle appropriate for transmission to a three-phase utility grid. A frequency and phase angle sensor is connected to the utility grid operative during a fault on the grid. A control system is connected to the sensor and to the inverter. The control system output is a current command signal enabling the inverter to put out a current waveform, which is of the same phase and frequency as detected by the sensor. The control system synthesizes current waveform templates for all three-phases based on a sensed voltage on one phase and transmits currents to all three-phases of the electrical system based on the synthesized current waveforms.

Abstract: A system and method for responding to abrupt load changes on a power system transfers an initial amount of power from an external power source to the AC power system through a secondary converter module; senses an abrupt load change occurring-on the AC power system; and transfers auxiliary direct current (DC) power to the secondary converter module.

Abstract: The present invention provides a solar cell that can be utilized as a stable electric power source for cloudy weather. An output voltage V1 of the solar cell 1 is lowered by a DC-DC converter 5. When a battery V2 is charged with an output of the converter 5, the converter 5 is stopped and the power of only the battery V2 is supplied to a low-voltage inverter circuit 6. The electric power supplied from the converter 5 is increased by boosting the output voltage of the converter 5 as well as starting to supply electric power from the battery V2. While the electric power of the converter 5 is increased, the performance of the solar cell 1 is judged. When the performance is decreased, the output voltage from the converter 5 is lowered and the amount of electric power supplied from the battery 2 is increased relatively.

Abstract: The invention relates to a method and device for injecting current during a mains supply voltage dip. The inventive method consists in permanently monitoring the magnitude and phase of the mains supply voltage and, upon detection of a voltage dip, injecting reactive current in the affected main supply phase(s) in a manner that can vary over the duration of the voltage dip, at very short intervals, proportionally to the magnitude of the dip, thereby absorbing the necessary active current. The device comprises a voltage measurement switch, a transformer (low voltage/medium voltage), a DC/AC inverter, a capacitor, a voltage dip detection circuit, and a control circuit.

Abstract: A power control apparatus for a bicycle that uses a first power supply and a second power supply to provide electrical power includes a voltage sensor for sensing a voltage from the first power supply. A control unit is coupled to the voltage sensor and is coupled for receiving power from the first power supply and the second power supply. The control unit outputs power from the second power supply when the voltage sensed by the voltage sensor is below a selected value, and the control unit outputs power from the first power supply when the voltage sensed by the voltage sensor is above the selected value.

Abstract: Disclosed is a power and start system for use with an aircraft engine having a shaft, systems requiring AC power and systems requiring DC power. The system includes an AC/DC starter/generator mechanically coupled to rotate in response to rotation of the engine shaft while the engine is operating in generate mode. Rotation of the starter/generator produces AC and DC power and operates to rotate the shaft of the engine when the engine is in start mode. The system includes a generator control unit which is electrically coupled to the AC/DC starter generator. The generator control unit is also electrically coupled to the systems requiring DC power. A start inverter is configured to be coupled to a DC power source. The start inverter is coupled to the AC/DC starter/generator to provide power for start mode operation. The disclosed system provides multiple levels of redundancy when in the event of a failure to any one or combination f components.

Abstract: Integrated flywheel uninteruptible power supply (UPS) systems provide reliable back-up power protection in a single integrated housing unit. The integration of the two normally independent systems results in a synergism such that various components may be shared between the systems. For example, the flywheel unit and the UPS electronics unit may utilize a single cooling system that is less complex and requires less energy to operate than two independent cooling systems. Other shared components may include at least control circuitry, user and display interface circuitry, fusing, DC bus capacitors, and emergency shut-off circuitry.

Abstract: The power meter, required in most utility grid connectged applications to measure load consumption, is utilized to provide a feedback to an associated turbogenerator power controller, providing a control system for peak shaving, load following, reactive power control, reverse flow protection and load analysis for scheduled turbogenerator operation. This control system operates with simple discrete signals for peak shaving operation, to more complex pulse signals for load following, to load profile analysis and scheduled operation based on a microprocessor based serial input from a digital power meter.