CAJ | 학술논문

在链式静止同步补偿器（static synchronous compen-sator,STATCOM）小信号交流模型的基础上,提出简化的STATCOM电流控制闭环系统;分别对典型Ⅰ型、典型Ⅱ型控制系统的电流调节器进行参数优化及比较,分析表明,对于电流阶跃响应,系统处于线性控制状态时超调量相对百分比不变,处于限幅非线性状态时超调量绝对值不变;采用比例调节器的典型I型系统稳态精度稍差,但动态控制精度较高,适合用于链式STATCOM工程装置;在a-b-c坐标系下仿真表明,应用优化设计的典型Ⅰ型系统控制参数,链式STATCOM输出电流可以快速跟踪参考值变化,具有良好的稳定性和跟踪精度。
재련식정지동보보상기（static synchronous compen-sator,STATCOM）소신호교류모형적기출상,제출간화적STATCOM전류공제폐배계통;분별대전형Ⅰ형、전형Ⅱ형공제계통적전류조절기진행삼수우화급비교,분석표명,대우전류계약향응,계통처우선성공제상태시초조량상대백분비불변,처우한폭비선성상태시초조량절대치불변;채용비례조절기적전형I형계통은태정도초차,단동태공제정도교고,괄합용우련식STATCOM공정장치;재a-b-c좌표계하방진표명,응용우화설계적전형Ⅰ형계통공제삼수,련식STATCOM수출전류가이쾌속근종삼고치변화,구유량호적은정성화근종정도。
Based on small signal AC model of chain circuit static synchronous compensator（STATCOM）,simplified STATCOM current control closed-loop system was proposed in this paper,the current regulator parameters of typical I and typical II model systems were optimized respectively,analysis shows that for current step response,the relative percentage of overshoot keeps unchanged in state of linear control,the absolute value of overshoot keeps unchanged in limiting nonlinear control state.The steady precision is a little poor but dynamic control precision is much better when applying proportional regulator to typical I model system,and it is suit for chain circuit STATCOM engineering installation.Simulation results in a-b-c coordinates show that with optimized control parameters of typical I model system the output current of chain circuit STATCOM can track reference changes fast,and the system has good stability and tracking precision.