This power conversion device has: a main breaker and a main electromagnetic contactor connected to a main power supply; a converter body having a switching element; a power supply-side reactor and a device body-side reactor connected to the main electromagnetic contactor; a current detector; a smoothing capacitor; a DC voltage detector that detects a voltage of the smoothing capacitor; a control unit; and accessories. The accessories have: a power-supply phase detection transformer that detects the phase and the amplitude of a power supply voltage; a current limiting resistor that suppresses rush current to the smoothing capacitor at an initial turning-on stage of the main power supply; an electromagnetic contactor which is for turning on current limiting operation and which connects the current limiting resistor and the main power supply; and a filter circuit that removes current ripples caused by switching of the switching element. The main breaker, the main electromagnetic contactor, and an input terminal of the power-supply phase detection transformer in the accessories are connected to one another. The power supply-side reactor, the device body-side reactor, and a filter terminal in the accessories are connected to one another.

A system for installing a solar panel may include a first end-of-arm assembly tool coupled to a first robotic arm and part of a first assembly robot and a second end-of-arm assembly tool coupled to a second robotic arm and part of a second assembly robot. The first and the second end-of-arm assembly tools have different tooling and perform different functions to assembly solar panels to support structure. The first assembly robot and the second assembly robot may be located on autonomous and non-autonomous vehicles and the various components can be operated by a control system based on operation instructions received from a neural network.

A system for installing a solar panel may include a first end-of-arm assembly tool coupled to a first robotic arm and part of a first assembly robot and a second end-of-arm assembly tool coupled to a second robotic arm and part of a second assembly robot. The first and the second end-of-arm assembly tools have different tooling and perform different functions to assembly solar panels to support structure. The first assembly robot and the second assembly robot may be located on autonomous and non-autonomous vehicles and the various components can be operated by a control system based on operation instructions received from a neural network.

This invention discloses an electrical energy transmission apparatus. The electrical energy transmission apparatus includes an input component which is connected to a direct current (DC) energy storage component, an output component which comprises an alternating current (AC) device interface used to connect an AC device, and an adapter component which transfers electrical energy from the input component to the output component. The adapter component comprises a DC driving unit and an AC driving unit. The DC driving unit converts energy of the DC energy storage component into a DC power. The AC driving unit converts energy of the DC energy storage component into an AC power. At least one of the DC driving unit and the AC driving unit is connected to the AC device interface.

This invention discloses an electrical energy transmission apparatus. The electrical energy transmission apparatus includes an input component which is connected to a direct current (DC) energy storage component, an output component which comprises an alternating current (AC) device interface used to connect an AC device, and an adapter component which transfers electrical energy from the input component to the output component. The adapter component comprises a DC driving unit and an AC driving unit. The DC driving unit converts energy of the DC energy storage component into a DC power. The AC driving unit converts energy of the DC energy storage component into an AC power. At least one of the DC driving unit and the AC driving unit is connected to the AC device interface.

In an embodiment, an off-grid phase splitter includes: a first input port and a second input port that are separately connected to a power supply; a first output port and a second output port that provide a second voltage, and the second output port and a third output port provide a third voltage; a first capacitor connected between the first output port and the second output port; a second capacitor connected between the second output port and the third output port; a first switch circuit and a second switch circuit connected in series to form a first node between the first input port and the second input port, where the first switch circuit and the second switch circuit are unidirectionally switched on in opposite directions,; and an inductor connected between the first node and the second output port.

This application provides a power generation system. The power generation system may include an integration system and a power transformation system. The integration system may include a plurality of inverters and a plurality of first switches. The plurality of inverters are connected in series to the plurality of first switches in a one-to-one correspondence. Each inverter converts a direct current from a direct current power supply into an alternating current, and outputs the alternating current to a corresponding first switch. Alternating currents of the plurality of first switches from corresponding inverters are combined and output to the power generation system, and the plurality of inverters and the power transformation system are isolated from each other. The power transformation system adjusts a voltage value of the combined alternating current and outputs the voltage value to a power grid.

This application provides a power generation system. The power generation system may include an integration system and a power transformation system. The integration system may include a plurality of inverters and a plurality of first switches. The plurality of inverters are connected in series to the plurality of first switches in a one-to-one correspondence. Each inverter converts a direct current from a direct current power supply into an alternating current, and outputs the alternating current to a corresponding first switch. Alternating currents of the plurality of first switches from corresponding inverters are combined and output to the power generation system, and the plurality of inverters and the power transformation system are isolated from each other. The power transformation system adjusts a voltage value of the combined alternating current and outputs the voltage value to a power grid.

A system and method for combining power from DC power sources. Each power source is coupled to a converter. Each converter converts input power to output power by monitoring and maintaining the input power at a maximum power point. Substantially all input power is converted to the output power, and the controlling is performed by allowing output voltage of the converter to vary. The converters are coupled in series. An inverter is connected in parallel with the series connection of the converters and inverts a DC input to the inverter from the converters into an AC output. The inverter maintains the voltage at the inverter input at a desirable voltage by varying the amount of the series current drawn from the converters. The series current and the output power of the converters, determine the output voltage at each converter.

A system and method for combining power from DC power sources. Each power source is coupled to a converter. Each converter converts input power to output power by monitoring and maintaining the input power at a maximum power point. Substantially all input power is converted to the output power, and the controlling is performed by allowing output voltage of the converter to vary. The converters are coupled in series. An inverter is connected in parallel with the series connection of the converters and inverts a DC input to the inverter from the converters into an AC output. The inverter maintains the voltage at the inverter input at a desirable voltage by varying the amount of the series current drawn from the converters. The series current and the output power of the converters, determine the output voltage at each converter.