潮流频繁切换下计及变压器健康运行的新型电力系统配电网综合调控策略

朱孟兆; 黄莘杰; 顾朝亮; 朱文兵; 方斯顿; 杨丽君

朱孟兆,黄莘杰,顾朝亮,朱文兵,方斯顿,杨丽君.潮流频繁切换下计及变压器健康运行的新型电力系统配电网综合调控策略[J].电测与仪表,2026,63(5):38-48.
ZHU Mengzhao,HUANG Xinjie,ZHAO Zhaoliang,ZHU Wenbing,FANG Sidun,YANG Lijun.Comprehensive control strategy considering transformer health operation of novel power system distribution network under frequent power flow switching[J].Electrical Measurement & Instrumentation,2026,63(5):38-48.

潮流频繁切换下计及变压器健康运行的新型电力系统配电网综合调控策略

Comprehensive control strategy considering transformer health operation of novel power system distribution network under frequent power flow switching

DOI：10.19753/j.issn1001-1390.2026.05.005

中文关键词: 配电网潮流频繁切换变压器寿命优化新型电力系统

英文关键词:distribution network,frequent power flow switching,transformer,health operation,novel power system

基金项目:国家电网有限公司总部管理科技项目资助(5500-202316535A-3-2-ZN)

作者中文名	作者英文名	单位
朱孟兆	ZHU Mengzhao	国网山东省电力公司电力科学研究院
黄莘杰	HUANG Xinjie	重庆大学电气工程学院输变电装备技术全国重点实验室
顾朝亮	ZHAO Zhaoliang	国网山东省电力公司电力科学研究院
朱文兵	ZHU Wenbing	国网山东省电力公司电力科学研究院
方斯顿	FANG Sidun	重庆大学电气工程学院输变电装备技术全国重点实验室
杨丽君	YANG Lijun	重庆大学电气工程学院输变电装备技术全国重点实验室

摘要点击次数: 712

中文摘要:

新型电力系统建设背景下大量高比例可再生能源接入配电网，改变了配电网内部潮流分布，带来了“输-配”网间潮流频繁切换的典型场景，变压器正向和反向送电过载引起变压器寿命衰减加剧，导致其处于非健康运行状态。对此，文中提出一种潮流频繁切换下计及变压器健康运行的配电网综合调控新策略。引入变压器热寿命损失计算模型，明确变压器负载率与绝缘寿命具有强正相关性，将潮流频繁切换下变压器内部特性变化纳入考虑，进而构建包含变压器负载率上限阈值约束的配电网可控资源协调管控措施并提出相应求解策略，在保证配电网电压安全和经济性的基础上针对性的改良变压器运行工况，通过IEEE 33改进系统仿真分析表明，所提方法能有效降低各场景下的变压器最大负载率，为变压器健康运行提供科学指导。

英文摘要:

With the construction of the novelpower system, a large proportion of renewable energy is being integrated into the distribution network, changing the internalpower flow of the distribution network, resulting in frequent power switching occurring between the transmission and distribution networks. To address the issue of transformer life degradation exacerbated by forward or reverse power transmission overload, this paper proposes a coordinated control strategy for various types of controllable resources in the distribution network to optimize transformer life under frequent current switching. Atransformer life calculation model is introduced, clarifying the strong positive correlation between transformer load rate and insulation life. The internal changes of the transformer under frequent current switching are considered, and a coordinated control measure for controllable resources in the distribution network including a constraint on the upper threshold of transformer load rate is constructed and a corresponding solution strategy is proposed. This measure effectively improves the operating conditions of the transformer while ensuring the safety and economy of the distribution network voltage. Simulation analysis on the improved IEEE 33-system shows that the proposed method can effectively reduce the maximum load rate of the transformer under various scenarios, providing scientific guidance for optimizing transformer life.

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