南方电网技术2024，Vol.18Issue(5)：62-74,13.DOI:10.13648/j.cnki.issn1674-0629.2024.05.007
计及频率安全与充裕性风险约束的机组组合策略
Frequency and Adequacy Constrained Unit Commitment Strategy
摘要
Abstract
The risks of frequency instability and power imbalance in new power systems have been raised due to the features of high-penetration power electronics and renewable energy sources(RES).To reduce these risks,it is necessary to consider the constraints of frequency security and adequacy in system operation dispatch.However,the two type constraints will significantly increase the computational complexity of the model,making it difficult to solve high accuracy during operation scale.A frequency and adequacy constrained unit commitment(FACUC)is proposed.Firstly,a system frequency response model and an adequacy evaluation model considering operational constraints are established.And the constraints of frequency security and adequacy are constructed in FACUC.Then a decomposition optimization algorithm is proposed to solve the proposed optimization model,which decomposes the original problem into a main problem of mixed integer linear programming(MILP),a simulation-based subproblem for frequency evaluation and an optimization-based subproblem for adequacy evaluation.Finally,the FACUC is solved by iterating among the main problem and subproblems.The example cases based on the modified IEEE 39-bus system are analyzed.The results show that the proposed FACUC model can effectively improve the frequency stability and adequacy of the system while ensuring economic efficiency.关键词
频率响应模型/充裕性评估/机组组合/分解算法Key words
frequency response model/adequacy evaluation/unit commitment/decomposition algorithm分类
动力与电气工程引用本文复制引用
常东旭,徐龙勋,朱灵子,张凌霄,黄博,胡博,邵常政..计及频率安全与充裕性风险约束的机组组合策略[J].南方电网技术,2024,18(5):62-74,13.基金项目
国家自然科学基金资助项目(52107072) （52107072）
中国南方电网有限责任公司重点科技项目(066500KK52222013) （066500KK52222013）
国家重点研发计划(2023YFA1011304). Supported by the National Natural Science Foundation of China(52107072) （2023YFA1011304）
the Key Science and Technology Project of China Southern Power Grid Co.,Ltd.(066500KK52222013) （066500KK52222013）
the National Key Research and Development Program of China(2023YFA1011304). （2023YFA1011304）
