Abstract: A battery monitoring system is for a battery string(s) at a geographical location, where the battery string(s) includes a plurality of series-connected batteries. The system may include wireless battery monitors each associated with a respective battery, a wireless string monitor associated with the battery string(s), and a wireless access point for communicating with the wireless battery monitors and the wireless string monitor at the location.

Abstract: A DC UPS may include a battery power source, an AC-DC converter configured to convert a grid AC power signal to a first DC power signal, and a first switch coupled downstream from the AC-DC converter. The DC UPS may include a second switch coupled between the first switch and a battery power source, and a DC-DC converter coupled to the first switch and configured to convert the battery DC power signal or the first DC power signal to a second DC power signal. The DC UPS may include first DC outputs coupled to the first switch and configured to provide the battery DC power signal or the first DC power signal to corresponding first loads, second DC outputs coupled downstream from the DC-DC converter and configured to provide the second DC power signal to corresponding second loads, and a controller.

Abstract: A UPS system may include a DC UPS having first DC outputs coupled to a first switch and configured to provide a battery DC power signal or a first DC power signal to corresponding first loads, first load controllers each coupled between respective ones of the first DC outputs and the first switch, and a controller coupled to the first switch and a second switch, and the first load controllers. The controller may be configured to switch between a first mode where the first DC power signal is supplied to the first load controllers, and a second mode where the battery DC power signal is supplied to the first load controllers. The UPS system may include a cloud application server in communication with the DC UPS and configured to cause the controller to disable and enable the first load controllers.

Abstract: A battery management system for batteries at a geographical location may include wireless battery chargers at the geographical location for charging the batteries and wireless battery monitors at the geographical location associated with the batteries. The battery management system may also include a battery management cloud server for communicating with the wireless battery chargers and the wireless battery monitors to remotely determine a configuration of, and remotely collect charging data from, the wireless battery chargers, and remotely determine a configuration of, and remotely collect diagnostic measurement data for, the batteries based upon the wireless battery monitors. The battery management cloud server may also remotely process the collected charging data and diagnostic measurement data based upon the determined configurations of the batteries and the battery chargers.

Abstract: A UPS system may include a DC UPS having first DC outputs coupled to a first switch and configured to provide a battery DC power signal or a first DC power signal to corresponding first loads, first load controllers each coupled between respective ones of the first DC outputs and the first switch, and a controller coupled to the first switch and a second switch, and the first load controllers. The controller may be configured to switch between a first mode where the first DC power signal is supplied to the first load controllers, and a second mode where the battery DC power signal is supplied to the first load controllers. The UPS system may include a cloud application server in communication with the DC UPS and configured to cause the controller to disable and enable the first load controllers.

Abstract: A battery management system for batteries at a geographical location may include wireless battery chargers at the geographical location for charging the batteries and wireless battery monitors at the geographical location and carried by associated ones of the batteries. The battery management system may also include a battery management cloud server for communicating with the wireless battery chargers and the wireless battery monitors to remotely collect battery charging status data from the wireless battery chargers based upon charging of the batteries and to remotely collect battery status data for the batteries from the wireless battery monitors. The battery management cloud server may also remotely process the battery and charger status data to schedule the batteries for use based upon the battery and charger status data.

Abstract: A fleet management system for vehicles and batteries at a geographical location may include vehicle identification devices each associated with a corresponding vehicle at the geographical location. The system may also include wireless battery monitors at the geographical location associated with the batteries. Each of the wireless battery monitors may be configured to, when the associated battery is connected to a vehicle, during a discharge cycle, communicate with the vehicle identification device associated with the vehicle to collect a vehicle identifier associated with the vehicle identification device, and store battery activity records for the associated battery along with the vehicle identifier.

Abstract: A battery management system for batteries at a geographical location may include wireless battery chargers at the geographical location for charging the batteries and wireless battery monitors at the geographical location and carried by associated ones of the batteries. The battery management system may also include a battery management cloud server for communicating with the wireless battery chargers and the wireless battery monitors to remotely collect battery charging status data from the wireless battery chargers based upon charging of the batteries and to remotely collect battery status data for the batteries from the wireless battery monitors. The battery management cloud server may also remotely process the battery and charger status data to schedule the batteries for use based upon the battery and charger status data.

Abstract: A fleet management system for vehicles and batteries at a geographical location may include vehicle identification devices each associated with a corresponding vehicle at the geographical location. The system may also include wireless battery monitors at the geographical location associated with the batteries. Each of the wireless battery monitors may be configured to, when the associated battery is connected to a vehicle, during a discharge cycle, communicate with the vehicle identification device associated with the vehicle to collect a vehicle identifier associated with the vehicle identification device, and store battery activity records for the associated battery along with the vehicle identifier.

Abstract: A DC UPS may include a battery power source, an AC-DC converter configured to convert a grid AC power signal to a first DC power signal, and a first switch coupled downstream from the AC-DC converter. The DC UPS may include a second switch coupled between the first switch and a battery power source, and a DC-DC converter coupled to the first switch and configured to convert the battery DC power signal or the first DC power signal to a second DC power signal. The DC UPS may include first DC outputs coupled to the first switch and configured to provide the battery DC power signal or the first DC power signal to corresponding first loads, second DC outputs coupled downstream from the DC-DC converter and configured to provide the second DC power signal to corresponding second loads, and a controller.

Abstract: A battery management system for batteries at a geographical location may include wireless battery chargers at the geographical location for charging the batteries and wireless battery monitors at the geographical location associated with the batteries. The battery management system may also include a battery management cloud server for communicating with the wireless battery chargers and the wireless battery monitors to remotely determine a configuration of, and remotely collect charging data from, the wireless battery chargers, and remotely determine a configuration of, and remotely collect diagnostic measurement data for, the batteries based upon the wireless battery monitors. The battery management cloud server may also remotely process the collected charging data and diagnostic measurement data based upon the determined configurations of the batteries and the battery chargers.

Abstract: A battery monitoring system is for a battery string(s) at a geographical location, where the battery string(s) includes a plurality of series-connected batteries. The system may include wireless battery monitors each associated with a respective battery, a wireless string monitor associated with the battery string(s), and a wireless access point for communicating with the wireless battery monitors and the wireless string monitor at the location.

Abstract: A system connected to an AC power grid having an AC phase signal includes an inverter module including a first inverter coupled to a DC voltage, actuated based on the AC phase signal. The first inverter provides a first voltage signal having predetermined harmonic components. A second inverter includes second switch elements coupled to the DC voltage and actuated by a second set of control signals phase delayed with respect to the first control signals. A transformer module has first and second primary windings coupled to the first and second inverters. The transformer module further includes a secondary winding coupled to first primary winding, the second primary winding, and the AC power grid. The secondary winding is configured to provide a secondary output voltage to the AC power grid by combining the first voltage signal and the second voltage signal such that the predetermined harmonic components are substantially cancelled.

Abstract: The present invention is directed to a system configured to be connected to an AC power grid having at least one AC phase signal. The system includes at least one inverter module comprising a first inverter having a plurality of first switch elements coupled to a direct current (DC) voltage and actuated in accordance with a first set of control signals based on the at least one AC phase signal. The first inverter provides a first voltage signal having predetermined harmonic components. The at least one inverter module further comprises a second inverter including a plurality of second switch elements coupled to the DC voltage and actuated in accordance with a second set of control signals phase delayed with respect to the first set of control signals. The second switching inverter providing a second voltage signal having the predetermined harmonic components.

Abstract: Monitoring, command, control, and management of a street light may be provided. First, an amount of light may be determined. Next, a status of the street light may be determined based on the determined amount of light. Then, a current status of the street light may be determined. The current status may be compared with the determined status. Based on the comparison, the current status of the street light may be altered.

Abstract: Monitoring, control, and management of a plurality of street lights may be provided. First, a lighting policy comprising a list of local variables and a status of a street light corresponding to each of the plurality of local variables may be received. Next, a sensed local variable may be received. A status of the street light for the sensed local variable may be determined based on the lighting policy. A command may be generated, based in the determined status, for a controller associated with the street light.

Abstract: Monitoring, command, control, and management of a street light may be provided. First, an amount of light may be determined. Next, a status of the street light may be determined based on the determined amount of light. Then, a current status of the street light may be determined. The current status may be compared with the determined status. Based on the comparison, the current status of the street light may be altered.

Abstract: A method for controlling a photovoltaic (PV) panel in a PV system including a computing device that provides motor control signals and implements an iterative adaptive control (IAC) algorithm for adjusting an angle of the PV panel. The IAC algorithm relates P at a current time k (P(k)), an elevation angle of the PV panel at k (?S (k)), P after a next step (P(k+1)) and an elevation angle of the PV panel at k+1 (?S (k+1)). The algorithm generates a perturbed power value P(k+1) to provide a power perturbation to P(k), and calculates ?S (k+1) using P(k+1). The motor control signals cause the motor to position the PV panel to achieve ?S (k+1). A change in P resulting from the positioning is compared to a predetermined change limit, and only if the change in P is ? the change limit, again sensing P, and repeating the generating, calculating and positioning.

Abstract: A system controller for position controlling a photovoltaic (PV) panel in a PV system including a power sensor sensing output power (P), and a motor for positioning the PV panel. The system controller includes a computing device having memory that provides motor control signals and implements an iterative adaptive control (IAC) algorithm stored in the memory for adjusting an angle of the PV panel. The IAC algorithm includes an iterative relation that relates P at current time k (P(k)), its elevation angle at k (?s (k)), P after a next step (P(k+1)) and its elevation angle at k+1 (?s (k+1)). The IAC algorithm generates a perturbed power value P(k+1) to provide a power perturbation to P(k), and calculates a position angle ?S (k+1) of the PV panel using the perturbed power value. The motor control signals from the computing device cause the motor to position the PV panel to achieve ?S (k+1).

Abstract: A system controller for position controlling a photovoltaic (PV) panel in a PV system including a power sensor sensing output power (P), and a motor for positioning the PV panel. The system controller includes a computing device having memory that provides motor control signals and implements an iterative adaptive control (IAC) algorithm stored in the memory for adjusting an angle of the PV panel. The IAC algorithm includes an iterative relation that relates P at current time k (P(k)), its elevation angle at k (?s (k)), P after a next step (P(k+1)) and its elevation angle at k+1 (?s (k+1)). The IAC algorithm generates a perturbed power value P(k+1) to provide a power perturbation to P(k), and calculates a position angle ?S (k+1) of the PV panel using the perturbed power value. The motor control signals from the computing device cause the motor to position the PV panel to achieve ?S (k+1).