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Emergency Control Strategy Study on Multi-Send HVDC Project from Central China to East China Power Grid

机译：中华民国中华民国多送HVDC项目的应急控制策略研究

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In the summer peak load operation mode of the interconnected power grid which is integrated with HVDC transmission lines from Central China power grid to East China power grid, security and stability emergency control strategies based on generator shedding and EDCPS (Emergency DC Power Support) are studied to cope with system instability caused by Tuanlin-Fengjing DC line unipolar block fault. Simulation results show that interconnected system cannot maintain the transient stability effectively by using EDCPS only. A coordinated control strategy which combines generator shedding with EDCPS is proposed to reduce the number of generators to be shed and ensure the transient stability. Through optimizing EDCPS which two or more HVDC lines participate in, an optimal coordinated control strategy is proposed. Simulation results present that the strategy which combines GC shedding with Longzheng DC bipolar supporting is the optimal strategy.
机译：在互联电网的夏季峰值负载运行模式中，与来自中国中央电网的HVDC传输线集成到华东电网，研究了基于发电机脱落和EDCPS（紧急直流电力支持）的安全和稳定性紧急控制策略应对促林枫泾直流线路单极块故障引起的系统不稳定。仿真结果表明，互连系统不能仅通过使用EDCP来维持瞬态稳定性。建议将发电机脱落与EDCP结合的协调控制策略，以减少要脱落的发电机的数量，并确保瞬态稳定性。通过优化两个或更多HVDC线路参与的EDCP，提出了最佳的协调控制策略。仿真结果表明，与龙郑直流双极支持相结合的战略是最佳策略。

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