| 引用本文: | 曹志冲,刘铖,蔡国伟,杨浩,周书宇,姜超,郝舒宇.基于响应数据的暂态电压分区协调控制策略[J].电力自动化设备,2025,45(6):164-172. |
| CAO Zhichong,LIU Cheng,CAI Guowei,YANG Hao,ZHOU Shuyu,JIANG Chao,HAO Shuyu.Coordination control strategy for transient voltage partitioning based on response data[J].Electric Power Automation Equipment,2025,45(6):164-172. |
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| 摘要: |
| 随着新能源渗透率的不断提升，系统受扰后的电压响应特性愈加复杂，传统的电压稳定紧急控制策略已无法满足电压恢复的精度以及快速性要求。提出一种基于响应数据的暂态电压分区协调控制策略。综合分析功率电流法、数据拟合法在不同场景下的适配性，提出能够优势互补的电压稳定附加判据。以分区后的区域响应数据为调控依据，基于模糊控制确定减载量、减载时间间隔以及无功补偿容量，并分析感应电动机失速特征，提出关键负荷位置选取方法，进而制定减载及无功补偿联合的分区控制策略，实现电压的快速恢复。算例结果表明，所提策略能够迅速调节受扰后的系统电压动态特性，在保障电压快速恢复稳定的同时，有效地减少切负荷量。 |
| 关键词: 响应数据 电压稳定 数据拟合 模糊控制 协调控制 低压减载 |
| DOI：10.16081/j.epae.202412013 |
| 分类号:TM712 |
| 基金项目:国家重点研发计划项目(2021YFB2400800) |
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| Coordination control strategy for transient voltage partitioning based on response data |
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CAO Zhichong1, LIU Cheng1, CAI Guowei1, YANG Hao1, ZHOU Shuyu2, JIANG Chao1, HAO Shuyu1
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1.Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin 132012, China;2.State Grid Jilin Electric Power Research Institute, Changchun 130021, China
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| Abstract: |
| Along with the continuous increase of the penetration rate of renewable energy, the voltage response characteristics of system after disturbance become increasingly complicated, and the traditional emergency control strategy of voltage stability can no longer meet the requirements of precision and speed of voltage recovery. A coordination control strategy for transient voltage partitioning based on response data is proposed. The adaptability of power current method and data fitting method under different scenarios is comprehensively analyzed, and the supplementary criteria of voltage stability with complementary advantages are introduced. Taking the regional response data as the basis for regulation and control, the load shedding amount, shedding time interval, and reactive power compensation capacity are determined based on the fuzzy control. The stall characteristic of induction motor is analyzed, a location selection method for key loads is proposed, further a partitioning control strategy combining load shedding and reactive power compensation is made to achieve rapid voltage recovery. The example results show that the proposed strategy can quickly adjust the dynamic characteristic of system voltage after disturbance, effectively reduce load shedding amount while ensuring quick recovery of voltage stability. |
| Key words: response data voltage stability data fitting fuzzy control coordination control low voltage load shedding |
