电网稳定切机切负荷辅助服务市场机制设计

代江; 汪朔; 赵晋泉

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电力建设 ›› 0

电网稳定切机切负荷辅助服务市场机制设计

代江¹, 汪朔², 赵晋泉²

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Market Mechanism Design of Emergency Generator Tripping and Load Shedding Ancillary Services

DAI Jiang¹, WANG Shuo², ZHAO Jinquan²

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文章历史 +

摘要

【目的】为满足电网在大扰动下的运行稳定性与经济性要求,激励稳定切机切负荷市场主体参与电力辅助服务,提出了一种稳定切机切负荷辅助服务市场机制。【方法】首先,设计了稳定切机切负荷辅助服务市场运行流程以及切机切负荷能力费和使用费的两部制定价方式;然后,考虑特定故障对电网进行分区,形成稳定切机切负荷的入围备选市场主体集合;其次,建立了计及故障表征因子与平均停电时长的最小成本目标函数,同时考虑了暂态频率、电压和同步稳定约束,构建优化出清模型,并采用时域仿真和分支定界算法求解辅助服务策略。通过改进频率稳定标准算例(The Chinese Society for Electrical Engineering-frequency stability,CSEE-FS)验证了所提稳定切机切负荷辅助服务市场机制的有效性。【结果】仿真表明,执行辅助服务策略后电网能够恢复稳定运行状态,且在模型中引入故障表征因子能精准地制定出该故障下费用最小策略。【结论】文章所提市场机制能在满足电网安全稳定需求的前提下,确保市场主体获得与其服务能力相匹配的收益,并降低了电网稳定切机切负荷的成本。

Abstract

[Objective] To ensure the operation stability and economic requirements of the power grid under large disturbances and to incentivize market participants to engage in system protection, this paper proposes a market mechanism for emergency generator tripping and load shedding ancillary services. [Methods] First, the operational process of the proposed ancillary service market is designed, along with a two-part pricing scheme consisting of capacity and utilization fees for generator and load shedding. Then, considering specific faults, the power grid is partitioned to form a candidate set of market participants for ancillary services. Subsequently, an optimization clearing model is established with a cost-minimization objective function that incorporates expected fault occurrence frequency and average outage duration. The model also accounts for transient frequency, voltage, and synchronization stability constraints. A time-domain simulation and branch-and-bound algorithm are employed to solve the ancillary service strategy. Finally, an improved CSEE-FS case is used to validate the effectiveness of the proposed market mechanism for ancillary services. [Results] Simulation results demonstrate that the proposed ancillary service strategy can effectively restore the power grid to a stable operating state. The incorporation of fault characterization factors enables precise identification of the cost-minimizing control strategy under specific disturbance scenarios.. [Conclusions] The proposed market mechanism ensures that grid security and stability requirements are met, while aligning compensation with the actual service capability of market participants. It also contributes to reducing the overall cost of ancillary services.

导出引用

代江, 汪朔, 赵晋泉. 电网稳定切机切负荷辅助服务市场机制设计[J]. 电力建设. 0

DAI Jiang, WANG Shuo, ZHAO Jinquan. Market Mechanism Design of Emergency Generator Tripping and Load Shedding Ancillary Services[J]. Electric Power Construction. 0

中图分类号： TM712

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