Voltage output control method and device and electronic equipment

Abstract

The invention provides a voltage output control method and device and electronic equipment. According to the method, a frequency correction value during frequency droop control is calculated based on SOC data of an energy storage unit in an optical storage power generation system, a rated voltage frequency during frequency droop control is corrected through the frequency correction value, a corrected rated voltage frequency is obtained; according to the frequency correction value, a rated voltage amplitude during voltage droop control is corrected, so that the corrected rated voltage amplitudes of inverters in different optical storage power generation systems are the same; and under the condition that load voltage and active power control logic are not changed, when the active powers of the different optical storage power generation systems are different, the reactive power of the optical storage power generation systems is compensated, so that the reactive power output by different optical storage power generation systems is the same, the reactive circulation phenomenon does not exist among the inverters in the optical storage power generation systems, and the load capacity and the safety of the optical storage power generation systems are improved.

Description

technical field [0001] The invention relates to the field of energy storage and power generation, and more specifically, to a voltage output control method, device and electronic equipment. Background technique [0002] At present, in the case of off-grid, multiple photovoltaic storage power generation systems are usually connected in parallel and then connected to the load to provide electric energy for the load, so as to ensure the available power of the load. [0003] In practical applications, the SOC (State of charge, state of charge) of different photovoltaic storage power generation systems is different. In order to achieve the purpose of efficiently utilizing the electric energy in the photovoltaic storage power generation system, the SOC balance control method can be used for power output control. Specifically, a high-SOC solar-storage power generation system provides larger active power for the load, and a low-SOC solar-storage power generation system provides smal...

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Problems solved by technology

[0004] In view of this, the present invention provides a voltage output control method, device and electronic equipment to solve the difference in active power output by photovoltaic storage power generation systems with different SOCs, so that there is reactive power circulation between different photovoltaic storage power generation systems, reducing much The load carrying capacity of a photovoltaic storage power generation system may also cause the problem of poor safety due to overcurrent phenomenon

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