System and method for suppressing power fluctuation of new energy power station

Abstract

The invention provides a system and method for inhibiting power fluctuation of a new energy power station. The new energy power station comprises an energy storage converter, new energy power generation equipment, an inverter and a boosting transformer; the system comprises a voltage sampling unit, a first calculation unit, a second calculation unit, a compensation control unit and a third calculation unit, wherein the voltage sampling unit is used for sampling output voltage of the inverter; the first calculation unit is used for calculating practical voltage at current time; the second calculation unit is used for calculating the output current variable quantity of the inverter; the compensation control unit is used for enabling the energy storage converter to output compensation current; and the third calculation unit is used for calculating compensation voltage of the inverter. According to the system and the method provided by the invention, output of the inverter is compensated according to output voltage change of the inverter; and power fluctuation due to new energy power generation can be effectively inhibited while the adjusting speed is ensured.

Description

technical field [0001] The invention relates to the field of new energy power generation, and more specifically, to a system and method for suppressing power fluctuations of a new energy power station. Background technique [0002] Compared with widely used conventional energy sources (such as coal, oil, natural gas, water energy, etc.), new energy sources can be continuously regenerated in nature and regularly supplemented or reused, and new energy sources are not produced or rarely produced after consumption. produce pollutants. However, new energy power generation also has defects such as randomness and volatility. With the vigorous development of photovoltaic power generation, wind power generation and other new energy power generation, the installed capacity of new energy is increasing day by day. Correspondingly, the problems of randomness and volatility brought about by new energy power generation are becoming more and more serious. [0003] In order to solve the r...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a system and method for suppressing power fluctuations of new energy power stations in view of the above-mentioned problem of large fluctuations in the power generated by new energy

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