考虑环境风的直接空冷机组电机变频调速控制技术  

Variable Frequency Speed Control Technology for Direct Air-cooled Unit Motors Considering Environmental Wind

作　　者：王国强 杨耀宁 WANG Guoqiang;YANG Yaoning(AIRSYS Refrigeration Engineering Technology(Beijing)Co.,Ltd.,Beijing 100043,China;School of Architecture and Planning,Yunnan University,Kunming 650500,China)

机构地区：[1]阿尔西制冷工程技术(北京)有限公司,北京100043 [2]云南大学建筑与规划学院,云南昆明650500

出　　处：《机械与电子》2025年第2期60-65,共6页Machinery & Electronics

基　　金：教育部国家重点实验室开放基金项目(LNTCCMA-20230103)。

摘　　要：为了优化直接空冷机组的运行效率,提高其对环境风变化的适应能力,提出了考虑环境风的直接空冷机组电机变频调速控制技术。分析了环境风变化对直接空冷机组电机运行状态的影响,确定调整供电频率和感应电动势可以保持磁通在额定区间内;同时,从功率参数和背压参数2方面计算变频调速参数,最大程度适应环境风变化影响。设计基于模糊隶属度的电机变频调速最优控制算法,将环境风对功率和迎面风速、空冷机组散热器的散热总量的影响作为输入,并通过非支配排序遗传算法求解,实现直接空冷机组电机变频调速精确控制。实验结果表明,所提方法能够实时响应环境风变化,及时调整电机转速,优化机组运行性能,提高了机组对环境变化的适应能力。In order to optimize the operational efficiency of direct air-cooled units and improve their adaptability to environmental wind changes,a variable frequency speed control technology for direct air-cooled unit motors considering environmental wind is proposed.The impact of environmental wind changes on the operating state of direct air-cooled unit motors is analyzed,and it is determined that adjusting the supply frequency and induced electromotive force can keep the magnetic flux in the rated interval;at the same time,the variable frequency speed control parameters are calculated from 2 aspects,namely,the power parameters and the back pressure parameters,to adapt to the impact of environmental wind changes to the greatest extent.An optimal control algorithm for motor variable frequency speed regulation is designed based on fuzzy membership degree,taking the influence of environmental wind on power,oncoming wind speed,and the total heat dissipation of the air-cooled unit radiator as inputs,and it is solved through non dominated sorting genetic algorithm to achieve precise control of direct air-cooled unit motor variable frequency speed regulation.The experimental results show that the proposed method can respond in real-time to changes in environmental wind,adjust the motor speed in a timely manner,optimize the operational performance of the unit,and improve the adaptability of the unit to environmental changes.

关 键 词：空冷机组 变频调速 散热 调速控制 环境风 

分 类 号：TM32[电气工程—电机]