Micro inverter with DC-to-AC converter and solar photovoltaic system having the same
AssigneeDelta Electronics, Inc.
InventorSheng-Hua Li
Life of this patent
Estimating the term…
Abstract
A DC-to-AC converter receives a DC power generated from a solar panel and converts the received DC power into an AC power outputted through a power line. The DC-to-AC converter includes a signal input port for externally connecting an environment sensing apparatus. The environment sensing apparatus senses environment conditions around the solar panel and produces an analog sensing signal. The DC-to-AC converter receives the analog sensing signal, converts the analog sensing signal into a digital sensing signal, and outputs the digital sensing signal the power line. A micro inverter is composed of the DC-to-AC converter and the solar panel, and the micro inverter is constructed in the solar photovoltaic system, thus eliminating unnecessary hardware devices.
Claims20
A DC-to-AC converter comprising:
- a conversion module connected to a solar panel and a power line and configured to receive a command, the power line configured to output an AC power outputted from the conversion module;
- a signal input port configure to receive a sensing signal;
- wherein the sensing signal is an analog sensing signal;
- a microprocessor electrically connected to the conversion module, the signal input port, and the solar panel, and configured to control the conversion module to receive the command, inquire relevant data of the solar panel according to the command and produce a solar panel signal, and convert the analog sensing signal received by the signal input port into a digital sensing signal;
- and
- a transmission module electrically connected to the microprocessor and the power line, and configured to receive the solar panel signal and packetize the solar panel signal into an energy data package, and receive the digital sensing signal and packetize the digital sensing signal into a sensing data package;
- the energy data package and the sensing data package configured to be outputted through the power line.
A micro inverter comprising:
- a solar panel configured to receive an external light source and generate a DC power;
- and
- a DC-to-AC converter electrically connected to the solar panel and a power line, and configured to convert the DC power into an AC power, and the power line configured to output the AC power;
- wherein the DC-to-AC converter has a signal input port, a microprocessor electrically connected to the signal input port, and a transmission module electrically connected to the microprocessor and the power line;
- the signal input port is configured to externally receive an analog sensing signal and the microprocessor is configured to convert the analog sensing signal into a digital sensing signal, and the transmission module is configured to receive the digital sensing signal produced from the microprocessor and packetize the digital sensing signal into a sensing data package, and the sensing data package is outputted through the power line.
A solar photovoltaic system comprising:
- a power line;
- a micro inverter connected to the power line, and the micro inverter comprising a solar panel and a DC-to-AC converter connected to the solar panel;
- wherein the solar panel is configured to receive an external light source and generate a DC power, and the DC-to-AC converter is configured to convert the DC power into an AC power, and the power line is configured to output the AC power;
- a data collection apparatus connected to the power line, and configured to transmit a command to the micro inverter through the power line, and configured to receive an energy data package transmitted from the micro invert according to the command;
- and
- an environment sensing apparatus connected to the DC-to-AC converter of the micro inverter, and configured to sense environment conditions around the solar panel, produce an analog sensing signal, and transmit the analog sensing signal to the DC-to-AC converter;
- wherein the DC-to-AC converter is configured to convert the analog sensing signal into a digital sensing signal, packetize the digital sensing signal into a sensing data package, and output the sensing data package to the data collection apparatus through the power line.
Dependencies are inferred from the claim text.