SOLAR INVERTER SYSTEM AND CONTROL METHOD THEREOF
First Claim
1. A control method of a solar inverter system, the solar inverter system comprising a first inverter, a second inverter, and a controller, wherein the first inverter and the second inverter are parallel with a utility grid, and the controller is used for optionally controlling the first inverter and the second inverter to output total output power in turn, or controlling the first inverter and the second inverter to output the total output power simultaneously, the control method comprising:
- calculating the total output power of the first inverter and the second inverter;
determining whether the total output power is less than a threshold value; and
executing a corresponding operation according to a determination result.
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Abstract
A solar inverter system includes a first inverter, a second inverter, and a controller. The first inverter has a first input terminal, and a first output terminal. The first input terminal is coupled to a solar panel. The second inverter has a second input terminal, and a second output terminal. The second input terminal is coupled to the solar panel. The first output terminal and the second output terminal are parallel with a utility grid. The controller is coupled to the first inverter and the second inverter for controlling the first inverter and the second inverter to output total output power in turn, or controlling the first inverter and the second inverter to output the total output power simultaneously.
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Citations
14 Claims
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1. A control method of a solar inverter system, the solar inverter system comprising a first inverter, a second inverter, and a controller, wherein the first inverter and the second inverter are parallel with a utility grid, and the controller is used for optionally controlling the first inverter and the second inverter to output total output power in turn, or controlling the first inverter and the second inverter to output the total output power simultaneously, the control method comprising:
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calculating the total output power of the first inverter and the second inverter; determining whether the total output power is less than a threshold value; and executing a corresponding operation according to a determination result. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A solar inverter system, comprising:
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a first inverter having a first input terminal and a first output terminal, wherein the first input terminal is coupled to a solar panel; a second inverter having a second input terminal and a second output terminal, wherein the second input terminal is coupled to the solar panel, and the first output terminal and the second output terminal are parallel with a utility grid; and a controller coupled to the first inverter and the second inverter, wherein the controller is used for optionally controlling the first inverter and the second inverter to output total output power in turn, or controlling the first inverter and the second inverter to output the total output power simultaneously. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification