CAJ | 학술논문

为了改善国内配网电压质量,提出一个配网固定串补技术的新研究方向.简单分析固定串联电容器在辐射状配电线路中改善电压特性的基本原理,并介绍串补装置结构图.阐述配网固定串联电容器的“自适应”电压调节和实时响应的特点,及其改善沿线电压分布和减小电压跌落的作用,并由算例分析证明其有效性.介绍配网固定串联电容器位置与容量的确定方法.提出针对配网串补的过压保护方案,以及预防铁磁谐振和感应电机自激的措施.介绍串补装置的控制器功能.经电力市场调研反馈信息可得:配网串补装置具有良好的应用前景.
위료개선국내배망전압질량,제출일개배망고정천보기술적신연구방향.간단분석고정천련전용기재복사상배전선로중개선전압특성적기본원리,병개소천보장치결구도.천술배망고정천련전용기적“자괄응”전압조절화실시향응적특점,급기개선연선전압분포화감소전압질락적작용,병유산례분석증명기유효성.개소배망고정천련전용기위치여용량적학정방법.제출침대배망천보적과압보호방안,이급예방철자해진화감응전궤자격적조시.개소천보장치적공제기공능.경전력시장조연반궤신식가득:배망천보장치구유량호적응용전경.
For improving the voltage quality of domestic distribution network, as FSC has never been used before, this paper puts forward a new research topic of distribution-fixed series capacitors (D-FSC). The basic principle of D-FSC in improving the voltage profile of radial distribution line is simply analyzed and the structure chart of it is introduced. D-FSC’s two features of self-adaption to variable load and real-time response, and two main effects of improving the voltage distribution along the line and decreasing voltage sag degree are expounded, and the effectiveness is verified using example analysis. The method to determine the location and capacity is introduced. Overvoltage protection design scheme, and precautions against ferroresonance and induction motor’s self-excitation are proposed. The function of D-FSC’s controller is presented. By the survey from electric power market, D-FSC has a good application prospect in domestic distribution network.