Controllable saturation reactors are widely used in reactive power compensation. The control system of controllable saturation reactor determines adaption speed, accuracy, and stability. First, an innovative type of c...Controllable saturation reactors are widely used in reactive power compensation. The control system of controllable saturation reactor determines adaption speed, accuracy, and stability. First, an innovative type of controllable saturation reactor is introduced. After that the control system is designed, and a self-tuning algorithm in PID controller is proposed in the paper. The algorithm tunes PID parameters automatically with different error signals caused by varied loads in power system. Then the feasibility of the above algorithm is verified by Simulink module of Matlab software. The results of simulation indicate that the control system can efficiently reduce adaption time and overshoot.展开更多
针对10~35 k V的中压电网经弧线圈接地运行方式中,消弧线圈的补偿度不能根据电容电流大小连续平滑调节的问题,提出了一种基于可控磁饱和电抗器的新型消弧线圈。并以一台额定电压为10 k V的可控磁饱和电抗器为研究对象,基于磁路分段的原...针对10~35 k V的中压电网经弧线圈接地运行方式中,消弧线圈的补偿度不能根据电容电流大小连续平滑调节的问题,提出了一种基于可控磁饱和电抗器的新型消弧线圈。并以一台额定电压为10 k V的可控磁饱和电抗器为研究对象,基于磁路分段的原理,充分考虑直交流绕组共同作用情况下磁路和电路的非线性问题,建立了消弧线圈的"磁路-电路耦合仿真模型",并在系统模型中进行了仿真实验。对实验波形的计算结果表明,该消弧线圈可在电网发生单相接地故障时,能够根据单相接地电容电流的大小平滑调整补偿度,使接地电流得到有效抑制,保证接地电弧顺利自熄,提高系统的供电可靠性,并给出了谐波的抑制策略。展开更多
文摘Controllable saturation reactors are widely used in reactive power compensation. The control system of controllable saturation reactor determines adaption speed, accuracy, and stability. First, an innovative type of controllable saturation reactor is introduced. After that the control system is designed, and a self-tuning algorithm in PID controller is proposed in the paper. The algorithm tunes PID parameters automatically with different error signals caused by varied loads in power system. Then the feasibility of the above algorithm is verified by Simulink module of Matlab software. The results of simulation indicate that the control system can efficiently reduce adaption time and overshoot.
文摘针对10~35 k V的中压电网经弧线圈接地运行方式中,消弧线圈的补偿度不能根据电容电流大小连续平滑调节的问题,提出了一种基于可控磁饱和电抗器的新型消弧线圈。并以一台额定电压为10 k V的可控磁饱和电抗器为研究对象,基于磁路分段的原理,充分考虑直交流绕组共同作用情况下磁路和电路的非线性问题,建立了消弧线圈的"磁路-电路耦合仿真模型",并在系统模型中进行了仿真实验。对实验波形的计算结果表明,该消弧线圈可在电网发生单相接地故障时,能够根据单相接地电容电流的大小平滑调整补偿度,使接地电流得到有效抑制,保证接地电弧顺利自熄,提高系统的供电可靠性,并给出了谐波的抑制策略。
