摘要
在采用混合型大功率有源电力滤波器消除凿波时，由于滤波器的检测精度、指令电流计算延时和输出滤波器的相移等因数的影响，滤波效果不够理想，针对这一问题，笔者提出了应用于混合型大功率有源滤波器的模糊递推积分PI控制算法。该方法能有效地提高系统的目标跟随特性、抗干扰性和鲁棒性，并且具有计算量小、工程容易实现的特点。实验结果证明了所提出的控制方法的可行性。所提出的模糊递推积分PI控制算法还可以对周期性的被控量实现无静差控制，如交流电机的闭环控制。
Hybrid high-capacity active power filter is not satisfactory in eliminating harmonics in electric power systems due to the influences of detection accuracy, time delay of instruction current calculation and phase displacement of output filter. This paper presents a recursive integral PI algorithm for HHAPF to improve its steady-state and dynamic performance, The control scheme adopts fuzzy logic based set-point weighing algorithm to enhance its robustness. The proposed algorithm has the advantages of less computation and easy engineering application. Experimental result verifies the validity of the proposed controller. The proposed rccursive integral PI algorithm can also be applied to the control of periodic reference current with zero steady-state error, such as sin AC drive control.
出处
《高压电器》
CAS
CSCD
北大核心
2009年第1期62-67,共6页
High Voltage Apparatus
基金
国家自然科学基金项目（60474041）
国家863计划项目（2004AA001032）：湖南省教育厅优秀青年项目（08B071）.
关键词
电力电子
混合型大功率有源滤波器
递推积分PI
模糊推理
power electronics
hybrid high capacity active power fiher（HHAPF）
recursive integral PI
fuzzy inference
