电气传动2017，Vol.47Issue(7)：50-56,7.DOI:10.19457/j.1001-2095.20170710
孤岛微电网电压不平衡自补偿控制研究
Research on Voltage Unbalance Self-compensation Control of the Isolated Island Microgrid
摘要
Abstract
With the development of distributed generation system and microgrid,power generation unit not only needs to inject power into the grid,but also needs to provide a high quality of power supply in the island mode. A voltage unbalance self-compensation control strategy in an islanded microgrid was proposed. The method was implemented on the local controller of the power generation unit inverter. At first,the traditional droop controller which contains the virtual impedance regulation was designed. Then the voltage and current double closed-loop proportional resonant controller was also designed. At last,the self-compensation control based on traditional controller was introduced,and aiming the research object,the stability of the system was analyzed with the system parameters. In order to verify the effectiveness of the control strategy,based on the real time simulation platform,some experiments of the microgrid isolated island operation was carried out. The results demonstrate the effectiveness of the proposed method in the compensation of voltage unbalance.关键词
分布式发电/微电网/不平衡负载/电压补偿/下垂控制Key words
distributed generation/microgrid/unbalance load/voltage compensation/droop control分类
信息技术与安全科学引用本文复制引用
李轩青..孤岛微电网电压不平衡自补偿控制研究[J].电气传动,2017,47(7):50-56,7.基金项目
山西省自然科学基金项目(31671905) （31671905）
陕西省高渗透率光伏电力交直流混合微电网分布式能量管理(E050302) （E050302）
