XIA Minghui, HAN Wei, SHE Chao, et al. Researchon the Coordinated Control Strategy of AGC for Wind and Solar Hybrid Energy Stations Based on Photovoltaic Compensation[J]. Journal of northeast electric power university, 2025, 45(3).
DOI:
XIA Minghui, HAN Wei, SHE Chao, et al. Researchon the Coordinated Control Strategy of AGC for Wind and Solar Hybrid Energy Stations Based on Photovoltaic Compensation[J]. Journal of northeast electric power university, 2025, 45(3). DOI: 10.19718/j.issn.1005-2992.2025-03-0100-10.
Researchon the Coordinated Control Strategy of AGC for Wind and Solar Hybrid Energy Stations Based on Photovoltaic Compensation
摘要
针对传统风光场站有功功率波动性大、场站跟踪精度不高的问题
利用光伏响应速度快、调节精度高的特点
提出一种基于光伏实时补偿的优化控制策略。该策略通过计算场站最大可发有功功率
采用自适应滑动滤波算法(Adaptive Exponential Moving Average
AEMA)对理论功率进行处理
提高最大可发有功功率的置信度
降低场站有功功率波动量。同时优化指令计算模块
根据调度、风光运行状态计算和分配风光指令
通过分时下发、分步调节风电和光伏指令值实现风光场站跟踪调度指令。经风光场站现场试验
试验结果表明文中所提控制策略与常规控制策略相比
能有效提升场站调节精度
抑制有功功率波动
具有广泛的应用前景。
Abstract
To address the issues of large active power fluctuations and low tracking accuracy in traditional wind and solar hybrid energy stations
leveraging the fast response speed and low adjustment cost of photovoltaic (PV) systems
this paper proposes an optimized control strategy based on real- time PV compensation. Firstly
the maximum achievable active power of the station is calculated. An Adaptive Exponential Moving Average (AEMA) algorithm is employed to process the theoretical power
enhancing the confidence level of the maximum achievable active power and reducing the fluctuation in the station's active power. Secondly
optimize the instruction computing module. By controlling the active power of the PV subsystem
and based on the time- misalignment and stepwise adjustment of wind and PV commands
the power deviation required for the tracking and scheduling commands of the wind and solar hybrid energy station is compensated in real- time. Finally
The strategy was tested on- site at wind and solar hybrid power stations. The results show that the proposed control strategy improves the station's regulation accuracy and reduces active power fluctuations compared to conventional strategies