Patent classifications
H10F77/955
Flexible photovoltaic array with integrated wiring and control circuitry, and associated methods
A flexible photovoltaic module for converting light into electricity includes a plurality of photovoltaic cells, a wiring harness, and a connection subsystem. The plurality of photovoltaic cells are electrically interconnected to form a positive node for supplying current to a load and a negative node for receiving current from the load. The wiring harness includes a plurality of flexible electrical conductors, each electrical conductor being electrically isolated within the wiring harness. The connection subsystem is operable to selectively connect the positive node to one of the electrical conductors of the wiring harness. A plurality of flexible photovoltaic modules may be connected to form a photovoltaic array.
PV Ramp Rate Control Using Reinforcement Learning Technique Through Integration of Battery Storage System
Systems and methods are disclosed for storing photovoltaic (PV) generation by applying reinforcement learning (RL)-based control to battery storages for PV ramp rate control; and exchanging energy dynamically to limit a ramp rate of the PV power output and maintaining a battery state of charge level at a predefined level to minimize required battery size and extend the battery life cycles.
DYNAMIC MAXIMUM EFFICIENCY TRACKER FOR PV MICRO-INVERTER
Systems, methods, and devices relating to the control of power conditioning systems. For a micro-inverter, a controller block controls the DC/DC converter while a separate controller block controls the DC/AC inverter. A dynamic maximum efficiency tracker (DMET) control block receives state variable outputs from the converter and the inverter. The control block then perturbs specific control input parameters for the converter and the inverter and determines the effect of the perturbation on the converter and inverter efficiencies and on micro-inverter efficiency as a whole. If the efficiency decreases, then the direction of the perturbation is reversed. Other system control tasks, such as maximum power point tracking and DC-bus voltage regulation can be performed concurrently by adjusting other control input parameters.
SYSTEM OF POWER GENERATION
A power generation system (200) comprises a photovoltaic device (201) and a voltage source (202). The voltage source (202) is arranged to raise the bias voltage across the photovoltaic device (201), thereby increasing the power output of the power generation system (200).
Electronic management system for electricity generating cells, electricity generating system and method for electronically managing energy flow
The invention relates to an electronic management system (5) for electricity generating cells (3), the system comprising: cell connection terminals to be connected to n associated electricity generating cells (3), n being a positive integer number, outputs to be connected to m associated static converters (9); m being a positive integer number and at least m=2, an energy routing module (13) adapted for routing energy flows from and between said cell connection terminals towards said outputs; and an electronic control unit (15) adapted for controlling dynamically the energy routing module (13).
Socket for a solar panel with a protective circuit
The present disclosure relates to a junction box for a solar panel, having a protective circuit that defines an operating state and a protected state. The protective circuit includes a short-circuiting switch between the output-side connecting elements of the first and second external connecting lines and an isolating switch between the short-circuiting switch and one of the poles of the solar panel, in which in the protected state, the short-circuiting switch short-circuits the output-side connecting elements of the first and second connecting lines to each other and the isolating switch disconnects the short-circuiting switch from the solar panel on at least one side.
INTELLIGENT SAFETY DISCONNECT SWITCHING
Intelligent safety disconnect switching methods and arrangements for PhotoVoltaic (PV) panels are disclosed. A switching device that is connected between a PV panel and a PV panel string detects a low current condition or an arc fault condition in the PV panel string. The switching device is automatically controlled to disconnect the
PV panel from the PV panel string responsive to detection of the low current condition or the arc fault condition. Switching device control could also be responsive to a disconnect command. For example, such a command could be generated by a grid sensor responsive to determining that an inverter, to which the PV panel string is connected, is not connected to an electrical grid.
ROOF INTEGRATED SUNLIGHT GENERATION MODULE WITH A DEVICE CAPABLE OF IMPROVING AND OPTIMIZING SUNLIGHT GENERATION EFFICIENCY
The present invention relates to a roof integrated sunlight generation module having a device capable of improving and optimizing sunlight generation efficiency, and a sunlight generation module according to an embodiment includes a solar battery module generating electric power by using sunlight, an external frame having a receiving part receiving the solar battery module, a support frame disposed in the receiving part to support the solar battery module, the support frame having a penetration part formed at a center region, and a generating efficiency optimization device installed in the penetration part and connected to an output terminal of the solar battery module to optimize efficiency of sunlight generation. Through installing the generation efficiency optimization device capable of controlling each solar battery at each solar battery, total generation efficiency of the sunlight generation system can be maximized. Through installing the generating efficiency optimization device inside of the frame, the sunlight generation module can be compactified without increasing thickness, and the sunlight generation module can be integrally formed with a roof to make installation easy, and the heats generated by the solar battery module can be dissipated easily to improve efficiency of the solar battery module.
FLEXIBLE SOLAR GENERATOR PROVIDED WITH ELECTRICAL PROTECTION AGAINST THE IMPACT OF CELESTIAL OBJECTS, SPACECRAFT AND SATELLITE COMPRISING AT LEAST ONE SUCH SOLAR GENERATOR
A solar generator comprises a flexible support, an array of solar cells, electrical transfer conductors, blocking diodes, the solar cells being formed along different transverse strings, the solar cells situated in a same string being electrically connected in series, each string comprising two opposite ends, respectively of positive polarity and of negative polarity. The positive polarity end of each string of solar cells is individually connected to a respective blocking diode via an electrical transfer conductor dedicated to the string, the electrical transfer conductors dedicated to the different strings being independent of one another, the blocking diodes being located at the proximal end of the solar generator, outside of the array of solar cells.
Inverters
We describe a photovoltaic power conditioning unit for delivering power from multiple photovoltaic panels to an ac mains power supply output, comprising: a dc input for receiving power from multiple photovoltaic panels; an ac output for delivering ac power to the ac supply; a bank of electrolytic energy storage capacitors for storing energy from the dc source for delivery to the ac supply; a dc-to-ac converter coupled to the ac output and having an input coupled to the bank for converting energy stored in the bank to ac power for the ac supply; and further comprising: a plurality of sense and control circuits, one for each capacitor in the bank, wherein each circuit is coupled in series with a capacitor, and is configured to disconnect the associated capacitor from the bank upon detection of a current flow through the associated capacitor of greater than a threshold current value.