CAJ | 학술논문

为提高三相自动重合闸控制系统的工作效率和工作可靠性，利用 PLC 软件代替硬件的方法对自动重合闸装置进行改造。在 PLC 的软件控制中，首次使用上升沿微分指令 DIFU 和下降沿微分指令 DIFD，在控制中指令分别只对信号的上升沿和下降沿有效，保证了控制的精确度，减少了误动作，该两条指令恰当使用也是该文的创新点所在。从实践结果来看，利用 PLC 构成自动重合闸装置的控制系统运行速度快、故障少、工作稳定，且体积小、成本低，值得在工业领域推广使用。
위제고삼상자동중합갑공제계통적공작효솔화공작가고성，이용 PLC 연건대체경건적방법대자동중합갑장치진행개조。재 PLC 적연건공제중，수차사용상승연미분지령 DIFU 화하강연미분지령 DIFD，재공제중지령분별지대신호적상승연화하강연유효，보증료공제적정학도，감소료오동작，해량조지령흡당사용야시해문적창신점소재。종실천결과래간，이용 PLC 구성자동중합갑장치적공제계통운행속도쾌、고장소、공작은정，차체적소、성본저，치득재공업영역추엄사용。
To improve the working efficiency and reliability of three?phase automatic reclosing control system,the automatic reclosing device was modified by the method of using PLC software instead of hardware. The DIFU instruction and DIFD instruc?tion are used first in software control of PLC. The control instructions are valid only to the rising edge and falling edge of the sig?nal respectively,which can ensure the control accuracy and reduce the misoperation. The appropriate application of two instruc?tions is the innovation point of this article. The practice results show that the PLC?based control system of automatic reclosing de?vice has fast speed running,less failure,stable operation,small size and low cost. It is worth promoting and using in industrial field.