摘要
电力系统中进行无功功率补偿的关键是能否及时有效地检测出无功电流,以便为无功功率补偿提供可靠的理论依据。针对传统i_p-i_q方法检测无功的缺陷,将旋转坐标系下电压电流坐标变换的方法应用于静止同步补偿器(STATCOM)无功电流检测上,根据无功补偿原理并针对补偿的快速性,采用无差拍控制策略,研究了其算法,并设计了无差拍控制器。搭建小容量STATCOM无功控制系统的仿真模型,进行了参数计算,实验结果表明了理论分析的正确性。
Detecting the reactive current timely and effectively is the key to make a compensauon ior reacuve powc- in the power system, so as to provide reliable theory basis for the compensation. In allusion to the shortage of tradi- tional ip - iq current detecting method, the method of voltage and current coordinate conversion under rotational co- ordinate system was applied in detecting reactive current of STATCOM. According to the principle of reactive power compensation, in allusion to rapidity of the compensation, dead -beat control strategy was proposed, at the same time, its algorithm was studied and the dead - beat controller was designed. At last, the simulation model of small capacity STATCOM reactive control system was built and the parameters were calculated. The results of the experi- ment prove the validity of the theoretical analysis.
出处
《黑龙江电力》
CAS
2017年第1期7-10,49,共5页
Heilongjiang Electric Power
基金
国家自然科学基金项目(51465053)
中央高校基本业务费专项资金项目(31920160073)
