大规模变频空调参与电力系统辅助服务的协调控制方法

Coordinated Control Method for Ancillary Services of Power System with Participation of Large-scale Inverter Air-conditioner

实现负荷的自治是提高大规模变频空调集群控制性能的重要技术途径。为此,文中提出了基于需求曲线的变频空调自治控制方法。首先,构建了各变频空调的需求曲线,以实现其调控灵活性和用户偏好的自主表达,同时实现了空调集群舒适度的一致性控制,使集群的调节能力得到充分利用。然后,根据需求曲线的不同利用方式,提出了主动响应型和被动响应型这2种协调控制方法,以适应不同跟踪精度和通信条件的要求,并分别应用于调频和吸收联络线功率波动这2种典型辅助服务中。最后通过对控制效果和模型误差的仿真验证了所提方法的有效性。

Autonomous control is an important way to improve the control performance of large-scale air-conditioner （AC）. Thus, an autonomous control method based on demand curve is proposed for the inverter AC. Firstly, the construction of demand curve for each AC is introduced. Based on the demand curve, the AC＇ s regulation flexibility and user＇ s preferences are expressed, and the concensus control of AC＇ s comfort is achieved, which can fully utilize the regulation capacity of the AC. Secondly, according to the way the demand curve is used, the active response and passive response control methods are proposed. The two methods can satisfy the different requirements for tracking accuracy and communication traffic, and are applied to frequency regulation and fluctuation mitigation, respectively. Finally, the simulation analysis on the control effect and model errors is conducted to verify the effectiveness of the proposed method.