摘要
随着光伏空调技术的日益成熟,大功率光伏并网成为趋势,而随之带来的并网逆变器内元器件因发热而导致的温升超标成为难以攻克的问题。该文通过对不同环境温度、不同发电功率、不同压缩机频率及不同外风机频率条件下元器件温升情况进行研究,提出了一种通过控制空调外风机运行频率并优化元器件选型的方法,有效解决了大功率并网状态下光伏空调的元器件温升问题,保证机组制冷能力不受限制的前提下,提高了光伏多联式空调系统元器件的可靠性。
With maturation of photovoltaic air-conditioning technology, high-power photovoltaic gridconnected has become a trend, and the temperature rise caused by the heat generated in the gridconnected inverter components has become a difficult problem to overcome. The temperature rise of components under different ambient temperature, power generation, compressor frequency and fan frequency is studied in this paper. A method is proposed to control the operation rate of airconditioning’s outside fan and optimize the selection of components to effectively solve the temperature rise of photovoltaic air-conditioner under high-power grid-connected state. The method improves the reliability of photovoltaic VRF air-conditioning system components under the premise of ensuring that the air-conditioning’s cooling capacity is not limited.
作者
耿媛媛
卢浩贤
何林
肖彪
梁纯龙
GENG Yuan-yuan;LU Hao-xian;HE Lin;XIAO-Biao;LIANG Chun-long(SKL of Air-Conditioning Equipment and System Energy Conservation,Zhuhai 519070)
出处
《环境技术》
2018年第4期47-52,共6页
Environmental Technology
关键词
光伏空调
大功率并网
元器件可靠性
温升
photovoltaic air-conditioning
high power grid-connected
components reliability
temperature rise
