摘要
针对大量分布式电源接入微电网的情况,分析了微电网的虚拟分区和控制设备的逻辑分区,基于虚拟分区实现局部稳定,继而完成整体快速稳定;结合虚拟子微网的频率电压稳定状态评估,分析了调节控制策略的数学模型和减小调节误差的方法;通过搭建微电网RTDS仿真模型,验证了虚拟子微电网频率、电压的快速稳定控制策略的有效性,同时也验证了多子微电网同步调节控制的有效性。最后总结了基于虚拟子微网的快速稳定控制在独立微电网稳定控制的优势。
Aiming at control problem of independent micro-grid with distributed energy resources（DERs）, its virtual and logical partitions of control device are analyzed. The local stability based on virtual packet and overall rapid stability is achieved. The mathematical model of control strategy and method reducing regulation error are given. RTDS simulation model for micro-grid is built. Effectiveness of rapid stability control method for frequency and voltage of micro-grid is validated. Finally, advantages of the proposed rapid control method for independent micro-grid are summarized.
出处
《电网技术》
EI
CSCD
北大核心
2015年第7期1907-1912,共6页
Power System Technology
关键词
微电网
频率稳定
电压稳定
虚拟子微网
充放电
切机减载
micro-grid
frequency stability
voltage stability
virtual sub-micro-grid
charge and discharge
under-frequency load shedding
