| 引用本文: | 赵溪洁,鲍颜红,吴 峰,等.基于系统等值参数的新能源多场站有功无功协调控制[J].电力系统保护与控制,2025,53(17):178-187.[点击复制] |
| ZHAO Xijie,BAO Yanhong,WU Feng,et al.Coordinated active and reactive power control of multi-new energy stations based on system equivalent parameters[J].Power System Protection and Control,2025,53(17):178-187[点击复制] |
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| 基于系统等值参数的新能源多场站有功无功协调控制 |
| 赵溪洁1,2,鲍颜红1,2,吴峰1,2,3,徐泰山1,2,张金龙1,2,任先成1,2 |
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| (1.电网运行风险防御技术与装备全国重点实验室，江苏 南京 211106;2.国电南瑞科技股份有限公司，
江苏 南京 211106;3.东南大学电气工程学院，江苏 南京 211106) |
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| 摘要: |
| 针对目前因新能源场站频率电压解耦控制可能无法满足安全稳定运行需求的问题，提出了协调区域新能源多场站可调资源和控制能力的电压和频率控制技术。首先，提出了协调控制系统架构，在各场站分布式自主响应基础上，采用集中决策的追加控制方式改善系统动态电压频率稳定特性。其次，采用系统辨识的方法实时修正调度中心下发系统参数并估计并网点等效有功不平衡功率，在此基础上构建并网点频率和电压控制模型。然后，采用并网点频率和电压控制模型计算场站协调控制策略，实现有功频率、无功电压以及两者的协调控制，保证实时主动支撑系统电压频率安全稳定。最后，以典型两区域系统进行仿真验证，结果证明了所提有功无功协调控制方法的有效性。 |
| 关键词: 新能源多场站 有功无功协调控制 频率控制 电压控制 场站追加控制 |
| DOI：10.19783/j.cnki.pspc.241415 |
| 投稿时间：2024-10-22修订日期：2025-01-09 |
| 基金项目:国家重点研发计划项目资助(2022YFB2402701) |
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| Coordinated active and reactive power control of multi-new energy stations based on system equivalent parameters |
| ZHAO Xijie1,2,BAO Yanhong1,2,WU Feng1,2,3,XU Taishan1,2,ZHANG Jinlong1,2,REN Xiancheng1,2 |
| (1. State Key Laboratory of Technology and Equipment for Defense Against Power System Operational Risks,
Nanjing 211106, China; 2. NARI Technology Co., Ltd., Nanjing 211106, China; 3. School of Electrical Engineering,
Southeast University, Nanjing 211106, China) |
| Abstract: |
| To address the limitations that the current decoupled frequency and voltage control strategies at new energy stations may not fully meet the safety and stability requirements, this paper proposes a coordinated voltage and frequency control technology that leverages the adjustable resources and control capabilities of regional multiple new energy stations. First, a coordinated control system architecture is introduced. Based on distributed autonomous responses at each station, an additional centralized control layer is incorporated to enhance the dynamic stability of system voltage and frequency. Second, a system identification method is employed to dynamically correct system parameters dispatched by the control center and to estimate the equivalent active power imbalance at the grid connection point. Based on this, a control model for frequency and voltage at grid connection point is developed. The control model is then utilized to calculate a coordinated control strategy for the stations, enabling integrated management of active power-frequency and reactive power-voltage to ensure real-time stability and security of the active support system. Finally, the effectiveness of the proposed active-reactive coordinated control method is validated through simulation on a representative two-area system. |
| Key words: multi-new energy stations coordinated active and reactive power control frequency control voltage control station-level supplementary control |
