基于功率支援分区协调优化的电网可靠性评估

doi:10.3969/j.issn.1000－7229.2016.10.010

电力建设 ›› 2016, Vol. 37 ›› Issue (10): 69-.doi: 10.3969/j.issn.1000－7229.2016.10.010

基于功率支援分区协调优化的电网可靠性评估

金黎明1,周宁1,冯丽1,卢治燃2,赵渊2

1.国网重庆市电力公司，重庆市 400015； 2.输配电装备及系统安全与新技术国家重点实验室（重庆大学），重庆市400044

出版日期:2016-10-01
作者简介:金黎明(1982)，男，硕士，高级工程师，主要研究方向为电力系统运行分析和控制；周宁(1972)，男，硕士，高级工程师，主要研究方向为电力系统自动化；冯丽(1975)，女，博士，高级工程师，主要研究方向为电力系统运行分析和控制；卢治燃(1989)，女，硕士研究生，主要研究方向为电力系统规划与可靠性评估；赵渊(1974)，男，博士，教授，博士生导师，主要研究方向为电力系统规划与可靠性。
基金资助:
国家自然科学基金项目（50977094）

Coordination Optimization of Power Support Capability

JIN Liming1，ZHOU Ning1，FENG Li1，LU Zhiran2，ZHAO Yuan2

1.State Grid Chongqing Electric Power Company, Chongqing 400015, China; 2. State Key Laboratory of Power Transmission Equipment & System Security and New Technology(Chongqing University), Chongqing 400044, China

Online:2016-10-01
Supported by:
Project supported by National Natural Science Foundation of China(50977094)

摘要/Abstract

摘要： 为缓解电网可靠性评估计算的复杂性，以分区功率支援为纽带，提出了基于功率支援分区协调优化的电网可靠性评估模型。该模型按发电裕度大小确定子区域的协调求解顺序，将子区域间的联络线功率看作子区域边界节点上的等效负载，按协调求解顺序采用最优负荷削减模型，逐次优化各子区域的负荷削减量和对外功率支援能力。相比于常规电网可靠性评估的分区等值技术，分区协调优化模型由于考虑了各子区域的发电裕度和潮流约束关系，并且采用优化模型计算子区域最大等效负载，因而可实现子区域间功率支援能力的有效建模。在保证较高精度的前提下，提高了电网可靠性评估效率。通过IEEE-RTS96测试系统验证了模型的快速性和有效性。

关键词: 电网可靠性, 等效负载, 发电裕度, 分区协调

Abstract: To alleviate the calculation complexity of power system reliability evaluation, this paper proposes a reliability evaluation model for power system based on network partition and coordination optimization of power support capability. This model determines the coordination solution sequence of subareas according to the generation margin, takes the tie line power between subareas as equivalent loads at the boundary nodes of subareas, and adopts the optimal load shedding model to optimize the load curtailment and power support capabilities of subareas successively according to the coordination solution sequence. Compared with the conventional partition equivalence technique of power system reliability evaluation, the proposed network partition and coordination model can realize the effective modeling of the power support capabilities among subareas, and enhance the reliability evaluation efficiency of power system while guaranteeing high accuracy, due to considering the generation margin and power flow constraints of subareas and adopting the optimization model to calculate the maximum equivalent load of subareas. Finally, this paper verifies the rapidity and effectiveness of the proposed model through IEEE-RTS96 test system.

Key words: power system reliability, equivalent load, generation margin, network partition and coordination

中图分类号:

TM 732

金黎明,周宁,冯丽,卢治燃,赵渊. 基于功率支援分区协调优化的电网可靠性评估[J]. 电力建设, 2016, 37(10): 69-.

JIN Liming，ZHOU Ning，FENG Li，LU Zhiran，ZHAO Yuan. Coordination Optimization of Power Support Capability[J]. Electric Power Construction, 2016, 37(10): 69-.

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基于功率支援分区协调优化的电网可靠性评估

Coordination Optimization of Power Support Capability

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