双馈风电机组PWM变换器的控制策略及其参数优化  

Control Strategy and Parameters Optimization of PWM Converter for DFIG

作　　者：许晓峰[1] 曲春雨[1] 王秀平[1] 祝贺[2] 

机构地区：[1]沈阳工程学院电力学院,辽宁沈阳110136 [2]东北电力大学建筑工程学院,吉林吉林132012

出　　处：《水电能源科学》2014年第7期202-204,共3页Water Resources and Power

摘　　要：为提高双馈风电机组PWM变换器的控制效果、提高机组电能质量,基于双馈风电机组PWM变换器数学模型并结合矢量控制理论,提出利用非线性单纯形算法优化双馈风电机组PWM变换器PI控制器参数,并在电磁暂态仿真软件PSCAD/EMTDC中对优化前后系统的动态性能进行了比较。结果表明,利用该优化方法能够改善控制系统的各项动态性能,提高了控制精度,且具有良好的鲁棒性。To improve the control effect and power quality of the doubly-fed wind turbine PWM converter, based on the mathematical model of the PWM converter, nonlinear simplex algorithm is put forward to optimize parameters of PI controller by combining the vector control theory. And then the dynamic performance of the system before and after optimization is compared with the electromagnetic transient simulation software PSCAD/EMTDC. The results proved that this optimization method can improve the dynamic performance of the control system and raise the control precision; furthermore, it has good robustness.

关 键 词：双馈型风电机组 PWM变换器 单纯形算法 控制策略 参数优化 

分 类 号：TM614[电气工程—电力系统及自动化]