基于RTDS的光伏发电系统对称跌落低电压穿越无功控制策略
Reactive Control Strategy for Symmetrical Low Voltage Ride Through of Photovoltaic System Based on RTDS
王巨波 1鲍伟 2徐文丽1
作者信息
- 1. 上海电力学院,上海200090
- 2. 国网上海市电力公司电力科学研究院,上海200437
- 折叠
摘要
分析了光伏发电系统有功、无功功率解耦控制,在RTDS实时仿真系统平台搭建了DC-DC和DC-AC两级光伏逆变器模型.提出了一种新型的光伏发电系统的低电压穿越控制策略.在电网对称跌落故障情况下,光伏发电系统向电网输出一定的无功功率,支持电网电压恢复,节省无功设备投入.通过在RTDS实时仿真系统平台仿真及实验验证了控制策略的可行性和有效性.
Abstract
The active and reactive power decoupling control of photovoltaic system is analyzed in this paper.The DC-DC and DC-AC duel-stage PV inverter model are built on the platform of RTDS real-time simulation system.A new control strategy for PV system low voltage ride through (LVRT) is proposed.In the case of symmetrical grid drop fault,PV system outputs some reactive power to the grid for voltage restore without more reactive power equipment installation.The feasibility and effectiveness of the control strategy is verified by simulation and experiment on the RTDS real-time simulation system platform.
关键词
光伏逆变器/低电压穿越/RTDSKey words
photovoltaic inverter/low voltage ride through/RTDS引用本文复制引用
基金项目
国家高技术研究发展计划项目(2011AA05A106)
国家电网公司科技项目(H2013-042)
曙光计划(10SG51)
出版年
2014
NETL
NSTL
维普
万方数据