基于电压偏差补偿的直流微电网电压控制策略
Voltage Control Strategy of DC Microgrid Based on Voltage Compensation
摘要: 在直流微电网的电压控制的方法研究中，下垂控制具有可靠性高、实用效果好等诸多优点，得到了广泛的应用。但是传统的下垂控制方法存在电压偏差，不能实现电压的误差调节，因此需要进行二次控制以减少甚至消除电压偏差。本文通过补偿换流器和直流线路损耗的方式，对下垂控制的参考值进行实时更新，实现电压偏差补偿，并且缩短了电压恢复的时间。在MATLAB中搭建六端直流微电网进行仿真分析，仿真结果验证了该控制策略的可行性和有效性。
Abstract: In the research of voltage control method of DC microgrid, droop control has many advantages such as high reliability and good practical effect, and has been widely used. However, the conventional droop control method has a voltage difference, and the voltage cannot be adjusted without deviation. Therefore, secondary control is required to perform voltage offset compensation. In this paper, by compensating the converter and DC line loss, the reference value of the droop control is updated in real time to realize voltage deviation compensation and shorten the voltage recovery time. The six-terminal DC microgrid is built in MATLAB for simulation analysis. The simulation results verify the feasibility and effectiveness of the control strategy.
文章引用：戴宁, 李红伟, 刘青卓. 基于电压偏差补偿的直流微电网电压控制策略[J]. 电力与能源进展, 2019, 7(2): 32-37. https://doi.org/10.12677/AEPE.2019.72004

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