Abstract: The present invention provides novel techniques for controlling energy systems. In particular, parametric hybrid models may be used to parameterize inputs and outputs of groups of equipment of energy systems. Each parametric hybrid model may include an empirical model, a parameter model, and a dynamic model. Critical parameters for groups of equipment modeled by the parametric hybrid models, which are correlated with, but not the same as, input and output variables of the groups of equipment may be monitored during operation of the energy system. The critical parameters may be used to generate optimal trajectories for the energy system, which may be used to control the energy system.

Abstract: A wind turbine power management system and method includes one or more wind turbines at a wind farm and one or more laser sources used to measure wind conditions remote from the wind farm. The laser sources may be collocated with the wind turbines, and are able to measure wind conditions at various predetermined ranges from the wind turbines. The laser sources measure wind conditions at locations that provide 10 to 20 seconds of advance notice, and also at locations that provide 50 to 100 seconds of advance notice. Wind condition at locations that provide 500 or more seconds of advance notice are also measured using remote laser sources.

Abstract: A method for installation capacities of a hybrid energy generation system is disclosed. The hybrid energy generation system may include a plurality of power systems. According to the environment factors and practical requirements of the installation site, the mechanism of the present invention may find the golden ratio of the installation capacities among the different power systems. Furthermore, the present invention may obtain the combination of installation capacities associated with the minimum recovery period, thereby further decreasing the installation cost and the efficiency of the hybrid energy generation system.

Abstract: A method for simulating an industrial plant includes generating a library of industrial plant component types using user input. The library includes properties of the component types and rules to generate scripts in accordance with property values. The method further includes assembling a configuration of industrial plant components from the library using user input. The configuration is assembled into an editor configured to accept a layout and connection of the configuration of industrial plant components and to accept a configuration and setting of the properties of the industrial plant components. The method also includes generating a script or scripts for industrial plant components in the configuration of industrial plant in accordance with the rules, wherein the generated scripts include mathematical relationships within or among the industrial plant components, or both. The mathematical relationships are then solved. Results are either displayed or used to control an industrial plant.

Abstract: A system and method for enhancing operation of a power generation system. The method includes receiving forecasts at a predictive control unit. The method also includes accessing via a controller real-time lifing models or near real-time lifing models in the predictive control unit. Additionally, the method includes accessing via the controller an enhancer configured to simulate operation of a power generating unit in the power generation system to generate an enhancement of the power generation system based on the forecasts and the real-time or near real-time lifing models.

Abstract: In certain embodiments, a system includes one or more memory modules and one or more processing units. The one or more processing units access configuration parameters for configuring models that are operable to simulate operation of a power environment. A first subset of the models models power environment elements of the power environment. A second subset of the models models one or more external information sources, including an environmental source providing environmental data. The one or more processing units initiate configuration of the models according to the configuration parameters, resulting in configured models, and access operating parameters indicating operating conditions for the models to simulate. The one or more processing units initiate execution by the configured models of a simulation of the power environment according to the operating parameters. The configured models interact to execute the simulation.

Abstract: A knowledge-based system is defined that ensures network radiatity during reconfiguration of a power distribution system. Network radiality heuristics idenufy a pair of switching operations that will preserve radiality. A line section table specifies the line section identifier, start bus, end bus, line section type, and switch existence for each line section in the network. A bus table identifies the line section that supplies the bus and those line sections that are fed by the bus for each bus in the network. A matrix-structured knowledge base with five distinct rule bases is used. The line section and bus tables must be updated after any switching operations are enacted. Extensive simulations of the knowledge-based system revealed that a solution was found in a time-efficient manner. This knowledge-based system enhances network reliability and hence prevents power outages.

Abstract: System and method include precisely modeling of a facility's energy usage over time based on historic data, and precisely predicting or measuring its actual, reduced energy usage over time after a redesign, retrofit, or renovation, or other positive change to the facility. The energy cost savings, whether over a time point of view (POV) of predicted, real-time, or historic, are creditable to the intervening remediation or renovation of the facility's energy footprint. In accordance with one embodiment, multiple-variable inputs are modeled using arithmetic regression and steepest-descent convergence arithmetic solutions based in large part on building-science (construction) data versus outside average temperature (t) that simplifies the modeling and measurements. Additionality is thus addressed along with a system and method that is more accurate, more repeatable, more reliable, and thus more credible and more readily monetized.

Abstract: Disclosed are systems and methods for calculating load models and associated tunable parameters that may be used to describe the behavior of loads connected to an electric power distribution system. The load models may be utilized to predict variations in demand caused by changes in the supply voltage, and may be utilized in determining an optimized control strategy based on load dynamics. Any action which causes a disruption to the electric power distribution system may provide information regarding the composition or dynamics of connected loads. Such actions may be referred to as modeling events. Modeling events may occur with some frequency in electric power distribution systems, and accordingly, a number of data sets may be acquired under a variety of conditions and at a variety of times. Load models may include static load models, dynamic load models, or a combination of static and dynamic load models.

Abstract: A system for conducting performing real-time harmonics analysis of an electrical power distribution and transmission system is disclosed. The system includes a data acquisition component, a power analytics server and a client terminal. The data acquisition component is communicatively connected to a sensor configured to acquire real-time data output from the electrical system. The power analytics server is communicatively connected to the data acquisition component and is comprised of a virtual system modeling engine, an analytics engine and a machine learning engine. The machine learning engine is configured to store and process patterns observed from the real-time data output and the predicted data output, forecasting harmonic distortions in the electrical system subjected to a simulated contingency event.

Abstract: A system and method for predicting operation of a plant or process receive an input value from the plant or process. An integrity of a non-linear model corresponding to a local input space of the input value may be determined. The non-linear model may include an empirical representation of the plant or process. If the integrity is above a first threshold, non-linear model may be used to provide a first output value. However, if the integrity is below the first threshold, a linearized first principles model may be used to provide a second output value. The linearized first principles model may include an analytic representation of the plant or process. Additionally, the analytic representation of the plant or process may be independent of the empirical representation of the plant or process. The first output value and/or the second output value may be usable to manage the plant or process.

Abstract: Example embodiments are directed to a method of fuel bundle design, core design, or combined fuel and core design, to ensure Pellet Cladding Interaction (PCI) related fuel failures are mitigated. More specifically, example embodiments provide fuel and/or core designs that may be determined prior to operation of a nuclear power plant, or prior to production of fresh fuel bundles. The PCI optimized fuel/core designs may include some or all of seven PCI Evaluation Methods which may be incorporated into existing nuclear reactor simulation programs. PCI optimized fuel and/or core design enhances fuel reliability, allows faster beginning-of-cycle (BOC) startups and faster middle-of-cycle (MOC) sequence exchanges to maximize plant performance, and minimizes ramping restrictions, thereby maximizing nuclear power plant performance.

Abstract: A computer-implemented method for the design of a power supply is disclosed. Multiple lists of power supply design variables are provided. The method includes simulating a first power supply design in response to power supply design variables selected from these multiple lists of variables. The method then calculates a score of the first power supply design and determines whether the score is better than the score of any power supply design included in a set of power supply designs. If so, the method replaces a power supply design having a worst score from the set of power supply designs with the first power supply design.

Abstract: In one embodiment, the method includes determining the safety limit minimum critical power ratio using the operating limit minimum critical power ratio, a change-in-critical-power-ratio distribution bias and a change-in-critical-power-ratio distribution standard deviation.

Abstract: A method and system for establishing a load model (120) that utilizes a measurement from a second monitor (140) to estimate a value taken by a first monitor (150). A base load value associated with a load (160) is collected. The load model (120) is applied to the base load value, yielding an estimated load value. The estimated load value is representative of at least one measured load value for the load (160).

Abstract: A position detection and simulation platform includes software configurable logic and programmable inputs and outputs to support software configuration only changes for use with a variety of position feedback devices including synchros, resolvers, linear variable differential transformers, and rotary variable differential transformers. Power to the software configurable outputs is dynamically controlled so that the power supply voltage presented to the outputs satisfies a minimum threshold above the amplitude of the output signal. Dynamic control is based on at least one of a digital representation of a signal to be output, an analog version of the signal to be output, or the signal being output.

Abstract: A method for a power grid configured to supply current to a plurality of elements of a circuit.

Abstract: A plurality of buses of an electrical power system are grouped into agents, family lines of agents and families of agents based on the reactive reserves depleted when the buses are loaded. Contingencies are applied and the reactive reserves are monitored to determine an exhaustion factor for one or more family lines in one or more families. A boundary case solution exists for each outage that has no solution when the outage is removed in small steps and an additional step has no solution and is used to assess where, why, and how the contingency causes voltage instability, voltage collapse and local blackout. Based on this information, the voltage rescheduling, active rescheduling, unit commitment and load shedding is determined that can be used as preventive, corrective or emergency controls in system design and planning, operation planning, reactive and voltage management, real time control, and Special Protection System Control.

Abstract: An maximum power point tracking unit used in a solar cell power system can find maximum power point more efficiently.

Abstract: A nuclear reactor fueling plan evaluating system and method in which reactor shutdown margin evaluation are performed quickly and accurately. A fueling procedure formulating part and an input setting part having databases are included. A maximum worth control rod candidate selecting part having a control rod worth calculating means which inputs fuel loading and control rod patterns of each fueling act, inputs a relatively simple second physics model, calculates control rod worth from the difference between the degree of subcriticality of a reactor core in a state that all control rods are inserted and the degree of subcriticality of the reactor core in a state that a single control rod is withdrawn for each fueling step, and selects a determined number of maximum worth control rod candidates. A reactor shutdown margin calculating part inputs a subdivided first physics model and calculates reactor shutdown margin for each maximum worth control rod candidate.

Abstract: A time driven, computer simulation based electric power system training software package designed to train power system operators is used with an existing set of electric power system modeling algorithms, such as sold under the Powerworld™ brand. The software package includes: a file that provides all the data to be plugged into the electric power system modeling algorithms, a graphics file that shows a picture of the power system and serves as a graphical man-machine interface with the modeling algorithms, a time dimension file that initiates and ends the simulation session and changes specific data in the data file as time progresses and stores a history of selected parameters over the course of the session; and a spreadsheet file, such as an Excel® spreadsheet, that performs calculations on data and presents data in graphical form based on output from the modeling algorithms at the end of the simulation.

Abstract: According to one aspect, an apparatus for computing a solution to a power flow problem for an electrical power system comprising a plurality of buses.

Abstract: A method for simulating the configuration of an electrical power network for robust power restoration method is described. The method involves analyzing an electrical network topology in respect of electrical power sources, electrical bridges and other associated data, such as safety data, loss data, etc. The method determining a set of virtual paths within a mesh electrical power network, the network having a plurality of sources of electrical power. Each of the virtual paths allowing determination of suitable locations for provisioning at least a non-conducting electrical bridge. The method allowing the state of the electrical bridges to be modified to restore power when a fault is detected within the electrical power network.

Abstract: Extended linear superposition methods, computer program products and systems to calculate Simultaneous Switching Noise (SSN) on victim Input/Output (I/O) pins of an electronic component caused by aggressor I/O pins is provided. A method includes calculating the quiet output voltage on a victim pin caused by the power supply only, and then calculating an aggressor noise response induced on the victim pin caused by a single aggressor pin and the power supply. To calculate SSN for a combination of aggressors, the SSNs for the different aggressors are linearly combined, and then the effects of the power supply are discounted by using the calculated quiet output voltage. Additionally, a linear victim substitution model is introduced to replace a full buffer model for a victim pin with a resistor with different resistance values depending on the induced voltage. Further, an alternate transmission line model is introduced to simplify SSN simulations of transmission lines.

Abstract: A system and method for monitoring and managing electrical power transmission and distribution networks through use of a deterministic, non-iterative method using an holomorphic embedding and algebraic approximants for determining the real-time load flow in a power generating system having an electrical grid. Such method may be employed for real-time or off-line applications for electric power systems reliability assessment, and is capable of determining whether or not a physical solution to the load flow problem exists, or if the system is in a state of voltage collapse.

Abstract: A computer-implemented method for modeling and/or improving operational performance of an energy system includes providing a graphical user interface configured to allow a user to manipulate equipment icons into an energy system model representation, using modular, piece-wise linear equipment models to simulate non-linear behavior of equipment represented by the manipulated equipment icons to solve an energy system model represented by the manipulation, and displaying a solution of the energy system model.

Abstract: A method for sizing components of a motor control system powered by a power supply includes receiving an upper nominal line voltage parameter for the power supply. A lower nominal line voltage parameter for the power supply is received. A first performance measure of the motor control system is determined based on the upper nominal line voltage parameter. A second performance measure of the motor control system is determined based on the lower nominal line voltage parameter. Components suitable for use in the motor control system are identified based on at least the first and second performance measures.

Abstract: A supervisory system controller for controlling and monitoring the generation of electrical energy from renewable sources and management methods for the storage of energy so generated and interconnecting the energy-generating elements, storage and load. The supervisory system controller operates to maximum the power transfer from a wind turbine to a battery by automatically varying the threshold levels at which turbine dump loads are switched based on system inputs and measurements. The method conserves generator fuel by delaying a scheduled generator maintenance running period such that it to occurs when renewable energy availability is predicted to be low and battery is in a reduced state of charge. Further modifications and management methods are also provided.

Abstract: A method for marine seismic surveying includes towing seismic sensors in a plurality of streamers in the water, actuating a seismic energy source in the water at selected times and detecting seismic signals at the sensors resulting from the actuation of the source. A data trace is created for each of the detected signals. At least one Fresnel zone is determined for at least some of the seismic data traces. A contribution of each of the traces to each one of a plurality of bins defined in a predetermined pattern is computed, based on the Fresnel zone associated with each trace. Based on the computed contributions, a maximum lateral distance between corresponding seismic sensors is determined that will result in a contribution sum above a selected threshold.

Abstract: A method of performing energy estimations operations in an intensive energy consuming site or system environment, the method comprising the steps of: (a) inputting a series of energy, emission and influencing data variables related to the intensive energy consuming site or system environment; (b) performing a first energy use prediction operation utilising a first prediction technique; (c) performing a second (simultaneous) similar energy use prediction operation utilising a second prediction technique; (d) correlating the results of the two techniques and; (e) providing a pass or fail signal depending on the level of correlation between the two techniques.

Abstract: A method, system, and computer program product are provided for distributing net power accurately. A workload is simulated operating on an integrated circuit. Net switching activity is determined for a set of nets and a set of subnets in the integrated circuit. Net switching data is generated based on the net switching activity. A net power value is calculated for each individual net and each individual subnet using the net switching data and a net capacitance for each individual net or subnet. Each calculated net power value is assigned to one of a set of source devices that drives the individual net or subnet, wherein the net power is distributed accurately. A net power assignment list is generated based on the assigning of each net power value to one of the set of source devices that drives the individual net or subnet.

Abstract: Systems and methods for optimizing energy consumption in multi-energy sources sites are provided. These techniques include developing a real-time model and a virtual model of the electrical system of a multi-energy source site, such as a microgrid. The real-time model represents a current state of the electrical system can be developed by collecting data from sensors interfaced with the various components of the electrical system. The virtual model of the electrical system mirrors the real-time model of the electrical system and can be used to generate predictions regarding the performance, availability, and reliability of cost and reliability of various distributed energy sources and to predict the price of acquiring energy from these sources. The virtual model can be used to test “what if” scenarios, such as routine maintenance, system changes, and unplanned events that impact the utilization and capacity of the microgrid.

Abstract: A systems power distribution tool integrates the design of the power source and distribution network to provide a robust interconnect topology and power source. This is accomplished with a machine of one or more computing devices configured as a systems power distribution tool. The tool “pulls” load current from the source through interconnects to the loads. This allows the interconnects to be designed to satisfy derating conditions for worst case voltage and current conditions and the power source to be designed to source the loads under actual conditions without margin stacking.

Abstract: Methods for selecting a conductor configuration of an overhead power transmission line tension section between two dead-end towers when the conductor configuration includes at least two different types of conductors. Geographical profile information and overhead power transmission line preferences are used along with predetermined selection rules when selecting the appropriate conductor configuration. Some examples of overhead power transmission line preferences include electrical characteristics and conductor sag between towers, while examples of selection rules include conductor costs and conductor tension.

Abstract: A design structure is embodied in a machine readable medium for designing, manufacturing, or testing integrated circuitry. The design structure includes first hardware for executing first software in response to macros that describe the integrated circuitry, and for generating a set of constants in response to the execution of the first software. Second hardware is for receiving the set of constants from the first hardware, and for executing second software in response to the macros and the set of constants, and for estimating a power consumption of the integrated circuitry in response to the execution of the second software.

Abstract: A simulator system transfers parameters between a power plant simulator and a safety control simulator. Problems concerning software common mode failure, interface interactions errors, software failure complexity, and so on, are evaluated. Thus, diversity and defense-in-depth are analyzed and safety is improved.

Abstract: The present invention relates to a method of estimating the internal state of an electrochemical system by a zero-dimensional (0D) electrochemical mathematical model for estimating the characteristics of a battery that are not directly measurable during operation thereof. For applications relating to hybrid and electric vehicles, the most significant internal characteristics are the state of charge (SoC), the state of health (SoH) and the thermal state (T). Reconstruction of the internal characteristics is achieved using a mathematical model of the battery. The method can be used with the operation of the battery itself (real time) with a concentrated-parameter (0D) or off-line mathematical model, for calibration, an optimization or a validation of management and estimation strategies. The method allows simulation of the thermal and electrical behavior of a battery.

Abstract: A method is provided to produce a model of an integrated circuit substrate, the method comprising: providing a tile definition that specifies an electrical model associated with instances of the tile; mapping a plurality of respective tile instances to respective locations of the substrate; and connecting the mapped tile instances to each other to produce a tile grid that models overall electrical behavior of the substrate.

Abstract: A computer implemented method includes providing information related to wind speed and direction prediction to a wind turbine energy prediction module, providing wind energy production prediction information to a resource allocation engine, and combining the wind energy production prediction information with information about non-renewable energy resources to provide an output identifying energy production resources to use for optimal load servicing.

Abstract: A known analytical physical quantity of an analysis subject and an element level consistent mass matrix of each element are obtained by acquiring units. A bubble function is integrated for each element, and the element level diagonal mass matrix of each element is computed by substituting the value that is integrated for the element level consistent mass matrix of each element. The diagonal mass matrix for the entire analysis region is computed by the summation (superposition) of the element level diagonal mass matrices of each element and inverse matrix thereof is computed. A motion of the analysis subject is analyzed based on the known analytical physical quantity, the diagonal mass matrix for the entire analysis region, and the inverse matrix thereof.

Abstract: A method for modeling an excitation system for a synchronous electrical power generator including: selecting a standard mathematical excitation system model from a plurality of standard excitation system models stored electronically; wherein the selected standard model is selected based on a similarity to the excitation system and can be an IEEE standard model; collecting data from the excitation system; determining parameter settings for the selected standard model using first pre-calculated and then collected (measured) data; verifying the selected standard model with tailored parameter settings by comparing an output of the model to a corresponding output of the excitation system; storing electronically the verified selected standard model with tailored settings; generating a report of the verified selected standard model with the tailored settings; performing rapidly and automatically model generation from a maintenance computer proximate to the excitation system; performing rapidly and automatically mode

Abstract: Systems and methods for energy monitoring and for providing the user with contextual information on the energy usage of a building area are disclosed. The methods may comprise performing an energy audit of a building and using the audit data and a building physics simulator to construct a computational model of the building's energy usage. An energy budget may be derived based on the computational model. The building's actual energy usage is reported with contextual information on energy usage from the computational model, the energy budget, historical data on energy usage, and other sources. The systems generally include energy monitoring hardware, a building physics simulator engine, and an interface. The interface may be implemented in hardware or software. The components of the system may be located in one building, or a central monitoring station with a building physics simulator engine may communicate with energy monitoring hardware in several buildings.

Abstract: Systems and methods are provided for collecting and aggregating a plurality of power flow measurements from a plurality of devices in a power management system. The error bounds of the aggregated power flow measurement are then determined using at least one error model. Systems and methods are also provided for inferring AC power flows from DC power flows. A device having at least one DC power flow sensor is augmented with at least one AC power flow sensor AC and DC power flows through the device are measured using the sensors over a range of operating points. An inference model of AC power flow in the device as a function of DC power flow is then built, wherein the error of the model is bounded. DC power flow through the device and in similar devices can then be then measured and used to infer AC power flow for the device.

Abstract: A method and apparatus for testing a photovoltaic substrate disposes the substrate on a support gantry with connection points such as vacuum cups. The gantry is actuated into a test position. A probe nest coupled to the gantry connects to a junction box on the substrate. A power supply applies voltage to the junction box, and an actuated frame contacts an edge region of the substrate to detect any breakthrough current. The actuated frame comprises a liner for maximizing contact with the edge of the substrate. The liner may be conductive, or may have a conductive surface. Current sensors coupled to the conductive liner of the frame detect any breakthrough current. A solar spectrum simulator provides solar spectrum radiation for testing the photovoltaic properties of the substrate.

Abstract: An improved method for analyzing power systems; in particular, power systems that may incorporate distributed energy resources (DER), that provides a thorough determination of the potential for network performance improvement that DER could provide, independent of non-network benefits DER could provide. The method incorporates an Energynet dataset simulating the power system, integrating transmission and distribution elements together and capable of evaluating the impacts of additions of real energy sources and/or reactive energy sources anywhere in the network. Such energy source additions are evaluated for their impact on a broad set of performance measures. The specific DER projects that would realize that potential improvement in network performance are characterized as an Optimal DER Portfolio. Network performance improvement attributable to the Optimal DER Portfolio is quantified in engineering and financial terms.

Abstract: One embodiment of the application provides a method and system for selecting a template characterizing a power plant from a template base, the template base including a plurality of templates and creating a power plant model of the power plant using the first template, the power plant model including a plurality of modules arranged in a hierarchical tree array having at least one tree branch, wherein each of the plurality of modules includes a plurality of attributes of the power plant that are arranged to be accessed by a data access layer using a tag name which includes names of ancestor modules in the tree branch. Additionally, the method and system also provides for mapping the plurality of attributes to specific applications of the power plant using the data access layer and configuring the power plant with the plurality of attributes using the data access layer.

Abstract: An integrated circuit chip has new Frequency dependent RLC extraction and modeling providing on chip integrity and noise verification and the extraction and modeling employs: A) 2D scan line algorithm for the collection of adjacent signal and power conductor coordinates; B) In core pair-wise frequency Dependent RL extraction; C) In core equivalent circuit synthesis; D) caching and partitioning RL extraction techniques for run time efficiency; and E) Techniques for synthesizing stable circuits to represent frequency dependent RL circuits for non-mono tonic R12.

Abstract: A system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system is disclosed. The system includes a data acquisition component, a power analytics server and a client terminal. The data acquisition component acquires real-time data output from the electrical system. The power analytics server is comprised of a virtual system modeling engine, an analytics engine and a UPS transient stability simulation engine. The virtual system modeling engine generates predicted data output for the electrical system. The analytics engine monitors real-time data output and predicted data output of the electrical system. The UPS transient stability simulation engine stores and processes patterns observed from the real-time data output and utilizes a user-defined UPS control logic model to forecast an aspect of the interaction between UPS control elements and the electrical system subjected to a simulated contingency event.

Abstract: A system for providing real-time modeling of protective device in an electrical system under management is disclosed. The system includes a data acquisition component, a virtual system modeling engine, and an analytics engine. The data acquisition component is communicatively connected to a sensor configured to provide real-time measurements of data output from protective devices within the system under management. The virtual system modeling engine is configured to update a virtual mode of the system based on the status of the protective devices and to generate predicted data for the system using the updated virtual model. The analytics engine is communicatively connected to the data acquisition system and the virtual system modeling engine and is configured to monitor and analyze a difference between the real-time data output and the predicted data output. The analytics engine is also configured to determine the bracing capabilities for the protective devices.

Abstract: A system for performing real-time failure mode analysis of a monitored system is disclosed. The system includes a data acquisition component, an analytics server and a client terminal. The data acquisition component is communicatively connected to a sensor configured to acquire real-time data output from the monitored system. The analytics server is communicatively connected to the data acquisition component and is comprised of a virtual system modeling engine, an analytics engine and a machine learning engine.