| 引用本文: | 刘彦伶,武志刚,赖 翔,等.异质空调负荷参与多区域电力系统频率调节的协同控制策略[J].电力系统保护与控制,2025,53(03):47-57.[点击复制] |
| LIU Yanling,WU Zhigang,LAI Xiang,et al.Cooperative control strategy for heterogeneous air-conditioning loads participating in frequency regulation of multi-area power systems[J].Power System Protection and Control,2025,53(03):47-57[点击复制] |
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| 摘要: |
| 用户侧海量的空调负荷被认为是电力系统重要的调频储备资源之一。通过聚合海量的空调负荷资源，可以为电力系统提供调频服务，改善系统频率调节能力。因此，提出了一种定频空调、变频空调协同参与调频的控制策略。基于两种空调不同的负荷特性，定频空调集群模拟涡轮机调速器的下垂控制，在检测到系统频率偏离额定值时，开启或关闭一定数量的设备来改变集群的运行功率以参与系统频率调节。变频空调集群采用比例-积分控制，通过调节空调压缩机的运行频率从而连续调节集群功率来参与调频。在此基础上，分别将两种空调集群的调频模型推广至互联多区域电力系统。同时以区域间的联络线偏差和区域内的频率偏差作为反馈控制信号，进一步优化了空调负荷调节策略。最后，相关仿真结果验证了所提协同控制策略的有效性。 |
| 关键词: 定频空调 变频空调 多区域电力系统 频率调节 |
| DOI：10.19783/j.cnki.pspc.240750 |
| 投稿时间：2024-06-17修订日期：2024-09-03 |
| 基金项目:国家自然科学基金项目资助(U22B6007)；中国南方电网有限责任公司科技项目资助(YNKJXM20222400) |
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| Cooperative control strategy for heterogeneous air-conditioning loads participating in frequency regulation of multi-area power systems |
| LIU Yanling,WU Zhigang,LAI Xiang,XU Danyang |
| (School of Electric Power, South China University of Technology, Guangzhou 510640, China) |
| Abstract: |
| The massive air-conditioning loads on the customer side are considered one of the important frequency regulation reserve resources for the power system. By aggregating these air-conditioning load resources, frequency regulation services can be provided to a power system to improve system frequency regulation capability. Therefore, a control strategy for the coordinated participation of fixed-frequency air-conditioners (FFAC) and inverter air-conditioners (IAC) in frequency regulation is proposed. Based on the different load characteristics of the two types of air conditioners, a FFAC cluster simulates the droop control of the turbine governor. When a deviation from the nominal system frequency is detected, a certain number of devices are turned on or off to change the FFAC cluster’s operating power and participate in frequency regulation. The IAC cluster adopts the proportional-integral control to continuously adjust the cluster’s power by adjusting the operating frequency of the air conditioning compressors to participate in frequency regulation. On this basis, the frequency regulation models of the two types of air-conditioning clusters are extended to interconnected multi-area power systems. The inter-area tie-line deviation and intra-area frequency deviation are used as feedback control signals to further optimize the air-conditioning loads regulation strategy. Finally, simulation results verify the effectiveness of the proposed coordinated control strategy. |
| Key words: fixed-frequency air-conditioner (FFAC) inverter air-conditioner (IAC) multi-area power system frequency regulation |
