光储直柔背景下直流空调电机控制策略研究  

Research on Control Strategy of DC Air Conditioning Motor in the PEDF System

作　　者：王劭中 俞国新 常云雪 邵立伟 由蕤 WANG Shaozhong;YU Guoxin;CHANG Yunxue;SHAO Liwei;YOU Rui(College of Electric Engineering,Qingdao University,Qingdao 266071,China;Qingdao Haier Smart Technology R&D Co.,Ltd.,Qingdao 266101,China;State Key Laboratory of Digital Household Appliances,Qingdao 266101,China)

机构地区：[1]青岛大学电气工程学院,山东青岛266071 [2]青岛海尔智能技术研发有限公司,山东青岛266101 [3]数字化国家重点实验室,山东青岛266101

出　　处：《电机与控制应用》2024年第4期60-69,共10页Electric machines & control application

基　　金：直流家电关键技术研究与产品开发(青岛市新兴产业培育计划)(23-1-4-xxgg-5-gx)。

摘　　要：光储直柔系统出现新能源出力和负荷变化等扰动后,直流母线电压将发生波动,这对直流空调电机的稳定运行提出了挑战。分析了直流空调驱动系统与交流空调驱动系统的拓扑结构及优缺点,研究了滑模观测器、最大转矩电流比和超前角弱磁相结合的控制策略,通过识别直流母线电压的波动,可以快速调节电机的控制参数。在Matlab/Simulink软件中搭建了采用上述控制策略的空调电机仿真模型,并依据空调的实际运行工况进行了仿真验证。结果表明,该控制策略实现了直流母线电压波动下空调电机的全速域稳定运行。The DC bus voltage will fluctuate after the disturbance of the new energy output and load change of photovoltaics,energy storage,direct current and flexibility(PEDF),which poses a challenge to the stable operation of the DC air conditioning motor.The topology,advantages and disadvantages of DC air conditioning drive system and AC air conditioning drive system are analyzed,and the control strategy combining sliding-mode observer,maximum torque per ampere and leading angle flux weakening is researched,which can quickly adjust the control parameters of the motor by identifying the fluctuation of DC bus voltage.The simulation model of air-conditioning motor using the above control strategy is built in Matlab/Simulink software,and the simulation verification is carried out according to the actual operation conditions of the air-conditioning.The results show that the control strategy can realize the stable operation of the air-conditioning motor in the full speed range under the DC bus voltage fluctuation.

关 键 词：光储直柔(PEDF) 直流空调 直流母线电压波动 空调电机 

分 类 号：TM351[电气工程—电机]