风电场中静止同步补偿器的前馈解耦控制  

Feedforward Decoupling Control Strategy of Static Synchronous Compensator in Wind Power Station

作　　者：耿运涛[1] 唐杰[1] 王璐[1] 

机构地区：[1]邵阳学院,湖南邵阳422000

出　　处：《船电技术》2014年第7期22-26,共5页Marine Electric & Electronic Engineering

摘　　要：对应用于风电场的静止同步补偿器(STATCOM)的前馈解耦控制策略进行了研究。建立了STATCOM在耦合状态下的数学模型,针对有功/无功控制通道存在耦合,不利于有功电流和无功电流的独立控制的现象,采用了基于前馈解耦的控制策略,给出了双闭环控制结构,并通过仿真与传统PI控制策略进行比较。仿真结果表明采用解耦控制策略后有功电流和无功电流可独立调节,配电网PCC点电压和STATCOM直流侧电压均能及时、有效地调整到期望值,且与传统PI控制策略相比具有超调量更小、响应速度更快、抗扰动性能更好的优点。In this paper, feedforward decoupling control strategy of static synchronous compensator （STATCOM） used in wind power station is studied and the mathematical model of STATCOM in the coupling state is set up. The paper uses feedforward decoupling control strategy, because the phenomenon of active / reactive power control channel is not conducive to the coupled active current and reactive current independent control, gives a double-loop control structure, and compares with the traditional PI control strategy through simulation.The results show that after using feedforward decoupling control strategy the active current and reactive current current can be adjusted independently, PCC point voltage and STATCOM DC voltage can be promptly and effectively adjusted to the desired value, and feedforward decoupling control strategy has smaller overshoot, faster responsebetter, anti-disturbance performance advantages compared with the traditional PI control strategy.

关 键 词：风电场 静止同步补偿器 前馈解耦 双闭环 独立调节 

分 类 号：TM762[电气工程—电力系统及自动化]