新型工业化
新型工業化
신형공업화
New Industrialization Straregy
2014年
4期
51-57
,共7页
状态反馈%精确线性化%二次型%无源性%最优控制
狀態反饋%精確線性化%二次型%無源性%最優控製
상태반궤%정학선성화%이차형%무원성%최우공제
state feedback%exact linearization%quadratic%passivity%optimal control
基于状态反馈精确线性化和二次型最优控制方法，提出了一种新型单相逆变器非线性控制策略。建立了单相全桥逆变器的仿射非线性模型。采用状态反馈精确线性化方法，推导出非线性状态反馈表达式，实现非线性系统的线性化。基于无源性控制思想，提出一种二次型性能指标，利用二次型最优控制对状态反馈系数进行优化设计。该文所提控制系统结构简单，成本低，易于数字实现。数值仿真验证了所提方法的正确性。基于所提控制方法的系统输出无稳态误差，输出电压谐波畸变率小，并对负载扰动具有较强的鲁棒性。
基于狀態反饋精確線性化和二次型最優控製方法，提齣瞭一種新型單相逆變器非線性控製策略。建立瞭單相全橋逆變器的倣射非線性模型。採用狀態反饋精確線性化方法，推導齣非線性狀態反饋錶達式，實現非線性繫統的線性化。基于無源性控製思想，提齣一種二次型性能指標，利用二次型最優控製對狀態反饋繫數進行優化設計。該文所提控製繫統結構簡單，成本低，易于數字實現。數值倣真驗證瞭所提方法的正確性。基于所提控製方法的繫統輸齣無穩態誤差，輸齣電壓諧波畸變率小，併對負載擾動具有較彊的魯棒性。
기우상태반궤정학선성화화이차형최우공제방법，제출료일충신형단상역변기비선성공제책략。건립료단상전교역변기적방사비선성모형。채용상태반궤정학선성화방법，추도출비선성상태반궤표체식，실현비선성계통적선성화。기우무원성공제사상，제출일충이차형성능지표，이용이차형최우공제대상태반궤계수진행우화설계。해문소제공제계통결구간단，성본저，역우수자실현。수치방진험증료소제방법적정학성。기우소제공제방법적계통수출무은태오차，수출전압해파기변솔소，병대부재우동구유교강적로봉성。
Based on state feedback linearization control theory and linear quadratic control theory, a novel single-phase full-bridge inverter control strategy was proposed in the paper. The nonlinear affine model of the system was set up. The nonlinear state feedback transform equation was derived and the nonlinear system had been realized linearization via state feedback linearization control theory. Further,this paper proposed a linear quadratic performance target based on passivity considerations. The feedback coefficients were optimized using the linear quadratic control theory. The control scheme proposed has advantage of simple controller structure,low cost and easy to implement with DSP. The validity of the control scheme was verified by numerical simulation. Highly accurate steady output,less distorted waveform and strong robust to the disturbance of load were gained based on the proposed control scheme.
