CAJ | 학술논문

针对三相静止坐标系下很难实现无静差调节的不足，采用d-q变换将三相交变量转换成同步旋转坐标系下的直流量来控制。但是，由于系统存在d-q坐标系下变量间相互耦合、控制器的设计对系统参数依赖性过强的问题，造成了当网侧电感因老化等原因数值变小时，原系统控制性能会急剧下降的现状，文中提出了基于合成矢量线性化d-q解耦的控制思想，优化了同步旋转d-q坐标系下的电压电流双闭环控制策略，并简要分析了双环控制模型的设计方法。仿真实验表明该模型具有结构简单和较强自适应性。
침대삼상정지좌표계하흔난실현무정차조절적불족，채용d-q변환장삼상교변량전환성동보선전좌표계하적직류량래공제。단시，유우계통존재d-q좌표계하변량간상호우합、공제기적설계대계통삼수의뢰성과강적문제，조성료당망측전감인노화등원인수치변소시，원계통공제성능회급극하강적현상，문중제출료기우합성시량선성화d-q해우적공제사상，우화료동보선전d-q좌표계하적전압전류쌍폐배공제책략，병간요분석료쌍배공제모형적설계방법。방진실험표명해모형구유결구간단화교강자괄응성。
In order to overcome the defects of the difficulty to obtain zero steady-state error condition , a control strate-gy using d-q transformation through which the three phase variable is converted into DC values in the synchronous ro -tation coordinates is proposed .However , due to the problems that the variables in d-q axis are intercoupling and the dependence between the design of controller and system parameters is strong , the original system control performance will decrease sharply when the value of network side inductance becomes small for aging changes .In this paper , the control strategy based on the complex vector linear d-q decoupling is proposed , the double closed loop control strategy in the d-q synchronous rotation coordinates is improved , and the design method of the double closed loop control mod-el is analyzed .The simulation analysis results demonstrate the proposed model has a simple structure and a strong self -adaptability .