舰船电子工程
艦船電子工程
함선전자공정
SHIP ELECTRONIC ENGINEERING
2014年
11期
174-177
,共4页
动态电压恢复器%滑模控制%重复控制%电压跌落
動態電壓恢複器%滑模控製%重複控製%電壓跌落
동태전압회복기%활모공제%중복공제%전압질락
dynamic voltage restorer%sliding model control%repetitive control%voltage sag
动态电压恢复器（DVR）是保障电力系统电能质量经济有效的可行方案。论文在研究动态电压恢复器的电网电压前馈控制加负载电压与电容电流双闭环反馈控制相结合的复合控制策略的基础上，分析了反馈环节中基于滑模变结构的控制方法，虽然该方法使DVR有良好的动态性能以及负载适应性能，但稳态误差较大。考虑到重复控制的良好稳态性能，本文提出一种将滑模变结构与重复控制相结合的控制方法，仿真及实验结果表明该方法稳态误差小，有效地弥补了滑模变结构控制的不足。
動態電壓恢複器（DVR）是保障電力繫統電能質量經濟有效的可行方案。論文在研究動態電壓恢複器的電網電壓前饋控製加負載電壓與電容電流雙閉環反饋控製相結閤的複閤控製策略的基礎上，分析瞭反饋環節中基于滑模變結構的控製方法，雖然該方法使DVR有良好的動態性能以及負載適應性能，但穩態誤差較大。攷慮到重複控製的良好穩態性能，本文提齣一種將滑模變結構與重複控製相結閤的控製方法，倣真及實驗結果錶明該方法穩態誤差小，有效地瀰補瞭滑模變結構控製的不足。
동태전압회복기（DVR）시보장전력계통전능질량경제유효적가행방안。논문재연구동태전압회복기적전망전압전궤공제가부재전압여전용전류쌍폐배반궤공제상결합적복합공제책략적기출상，분석료반궤배절중기우활모변결구적공제방법，수연해방법사DVR유량호적동태성능이급부재괄응성능，단은태오차교대。고필도중복공제적량호은태성능，본문제출일충장활모변결구여중복공제상결합적공제방법，방진급실험결과표명해방법은태오차소，유효지미보료활모변결구공제적불족。
Dynamic Voltage Restorer(DVR) is a practicable and economical way to ensure the energy quality of power system .Under the study of the control strategy that combine grid voltage feed‐forward control with the load voltage and ca‐pacitor current double closed‐loop feedback control ,sliding mode variable structure control in feedback control is analyzed . Although this control strategy has excellent dynamic performance as well as good anti‐jamming capability ,it has large static error .A novel control strategy based on sliding mode variable structure control combined with repetitive control is proposed . The simulation and test results show that the proposed strategy makes up the shortfall of fuzzy sliding mode variable struc‐ture control .
