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直流配电网的电压协同控制及稳定运行研究 预览

Research on voltage synergy control and stable operation of DC distribution network
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摘要 本文针对直流配电网中存在的功率平衡和电压波动的问题,在研究直流配电网拓扑及多种运行模式的基础上,提出了一种新的分层协调控制方法。该方法通过控制直流母线电压变化量来协调各个子模块的工作方式,它可以在不同条件下保持配电网内功率平衡和电压稳定。电压分段下垂、多点协同的控制策略可以平滑切换各种运行状态。最后搭建系统模型并进行仿真,结果表明,在光照、风速、负荷突变的状态下,该系统模型能快速反应并保持系统稳定,证明了该控制方法的有效性和可行性。 Aiming at the problems of power balance and voltage fluctuation in DC distribution network, a new hierarchical coordinated control method is proposed based on the research of DC distribution network topology and various operation modes. The method coordinates the working mode of each sub-module by controlling the DC bus voltage variation, and can maintain the power balance and voltage stability in the distribution network under different conditions. The voltage segmentation drooping and multi-point coordination control strategy can smoothly switch various operating states. Finally, the system model is built and simulated. The results show that under the condition of light, wind speed and sudden load, the system can be quickly reacted and stabilized, which proves the effectiveness and feasibility of the control method.
作者 赖一峰 Lai Yifeng(Guanzhou Power Supply Corporation Limited,Guangzhou 510000)
出处 《电气技术》 2019年第7期42-47,共6页 Electrical Engineering
基金 国家高技术研究发展计划(863计划),2015AA050101.
关键词 直流配电网 电压波动 功率平衡 分层协调控制 下垂控制 DC distribution network voltage fluctuation power balance hierarchical coordinated control drooping control
作者简介 赖一峰(1986-),男,硕士研究生,工程师,从事配电网巡维、试验和自动化工作。
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