CAJ | 학술논문

　　用网侧逆变器与静止同步补偿装置（STATCOM）协调的控制策略，增强直驱永磁风力发电系统低电压穿越能力。针对经典PI控制STATCOM动静态性能难以协调的问题，提出了一种新型控制的静止同步无功补偿装置，该装置采用直接电压控制结构，引入了遗传模糊自适应PI控制策略。在模糊控制器的设计过程中，采用遗传算法和参数整定算法对模糊因子进行离线和在线寻优，以消除系统稳态误差；采用非线性目标值克服了遗传算法的动态响应慢的特点。仿真结果表明该方案能有效增强了直驱永磁风力发电系统低电压穿越能力。
　　용망측역변기여정지동보보상장치（STATCOM）협조적공제책략，증강직구영자풍력발전계통저전압천월능력。침대경전PI공제STATCOM동정태성능난이협조적문제，제출료일충신형공제적정지동보무공보상장치，해장치채용직접전압공제결구，인입료유전모호자괄응PI공제책략。재모호공제기적설계과정중，채용유전산법화삼수정정산법대모호인자진행리선화재선심우，이소제계통은태오차；채용비선성목표치극복료유전산법적동태향응만적특점。방진결과표명해방안능유효증강료직구영자풍력발전계통저전압천월능력。
With grid inverter and STATCOM being applied in enhancing LVRT capability of direct-drive permanent magnet wind power generation system, this paper proposes an improved control method to reconcile the dynamic and static state in PI controller, and also introduces the direct voltage control strategy and the adaptive fuzzy PI control in the system. In the design of fuzzy controller, the fuzzy factor were adjusted roughly off line with genetic algorithm and precisely on line with self-adjusting parameter algorithm, which solved the problems such as overshoot and the poor self-adaptive, the nonlinear target value accelerated the speed of dynamic response. The simulate results verify that the proposed method is effective.