CAJ | 학술논문

针对特高压直流输电工程中两极直流线路间的影响，应用线路间互感原理，对高压直流输电线路电磁耦合机理和扰动特征进行了深入的研究。从理论上计算了宾金直流输电工程两直流线路间存在较大的电磁耦合分量。通过RTDS建立的仿真模型，研究了一极线路故障时去游离时间长短、两极线路间距大小和一极电流升降速率大小对另一运行极控制系统的影响，结合现场实际线路故障的波形对宾金直流控制策略提出了优化方案。通过RTDS仿真验证了优化后的控制策略能在一极发生线路故障时对非故障极的影响降低到最小，有效地防止了双极闭锁，对于电网的可靠安全运行具有重大意义。
침대특고압직류수전공정중량겁직류선로간적영향，응용선로간호감원리，대고압직류수전선로전자우합궤리화우동특정진행료심입적연구。종이론상계산료빈금직류수전공정량직류선로간존재교대적전자우합분량。통과RTDS건립적방진모형，연구료일겁선로고장시거유리시간장단、량겁선로간거대소화일겁전류승강속솔대소대령일운행겁공제계통적영향，결합현장실제선로고장적파형대빈금직류공제책략제출료우화방안。통과RTDS방진험증료우화후적공제책략능재일겁발생선로고장시대비고장겁적영향강저도최소，유효지방지료쌍겁폐쇄，대우전망적가고안전운행구유중대의의。
In view of the influence of DC circuit of HVDC transmission between two poles, the principle of mutual inductance between the lines is applied, the electromagnetic coupling mechanism of high voltage DC transmission line and disturbance characteristics are studied, the electromagnetic coupling component of two DC line Binjin HVDC is calculated. The simulation model is established by RTDS, the time of dissociation in line failure, the distance between lines and the current fluctuation rate, which has an effect on control system is studied. Combined with the actual line fault waveform, optimization solution of Binjin DC is proposed. The optimized control strategy can reduce the effects of the non-fault pole to the minimum when restarting, which is verified by the RTDS simulation. The bipolar blocking is prevented effectively, which is of great significance on the safety and reliability in the operation of the power grid.