CAJ | 학술논문

研究了一种采用小生境粒子群算法优化设计SPWM逆变器准比例谐振( PR)控制器参数的方法。逆变器采用输出电压瞬时值反馈和电感电流反馈双闭环控制。 PR控制可以克服常规PI控制难以消除交流输入系统稳态误差的缺陷，但在控制器参数设计上没有成熟技术。为此，给出采用LCL滤波器双环控制SPWM逆变器的数学模型和结构框图；用小生境粒子群算法构造灾变算子、迁徙算子和隔离算子，增强种群的多样性和算法的优化性能。介绍了采用小生境粒子群算法优化准PR控制器的步骤。对开环控制、PI控制和准PR控制的控制效果进行比较，验证了小生境粒子群算法的性能。
연구료일충채용소생경입자군산법우화설계SPWM역변기준비례해진( PR)공제기삼수적방법。역변기채용수출전압순시치반궤화전감전류반궤쌍폐배공제。 PR공제가이극복상규PI공제난이소제교류수입계통은태오차적결함，단재공제기삼수설계상몰유성숙기술。위차，급출채용LCL려파기쌍배공제SPWM역변기적수학모형화결구광도；용소생경입자군산법구조재변산자、천사산자화격리산자，증강충군적다양성화산법적우화성능。개소료채용소생경입자군산법우화준PR공제기적보취。대개배공제、PI공제화준PR공제적공제효과진행비교，험증료소생경입자군산법적성능。
A parameter design method of the quasi proportional-resonant ( PR) controller of a single-phase volt-age SPWM inverter using an improved niching particle swarm optimization ( PSO) algorithm is studied in this paper. The inverter adapts the double closed-loop control strategy with the instantaneous output voltage and inductor-current feedback. PR control strategy can overcome the disadvantages of the traditional PI control strategy which can not elimi-nate the steady-state error of AC input. However, there are some questions in designing for PR controller. The mathe-matical model and system structure of the SPWM inverter with LCL output filter are given. A niching PSO algorithm is presented which uses cataclysm operator, emigration operator and isolation operator to maintain the diversity of the popu-lation and improve the global optimizing ability. The steps of optimizing the parameters of PR controller using niching PSO algorithm are demonstrated. In comparison with open-loop control method and PI control method, the test results verify the performance of the proposed method.