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1. WO2021036516 - PHOTOVOLTAIC AIR CONDITIONER CONTROL METHOD AND APPARATUS AND PHOTOVOLTAIC AIR CONDITIONER

Publication Number WO/2021/036516
Publication Date 04.03.2021
International Application No. PCT/CN2020/100562
International Filing Date 07.07.2020
IPC
F24F 11/88 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
88Electrical aspects, e.g. circuits
F24F 11/64 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
62characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
63Electronic processing
64using pre-stored data
F24F 11/86 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
70Control systems characterised by their outputs; Constructional details thereof
80for controlling the temperature of the supplied air
86by controlling compressors within refrigeration or heat pump circuits
CPC
F24F 11/64
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
62characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
63Electronic processing
64using pre-stored data
F24F 11/86
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
70Control systems characterised by their outputs; Constructional details thereof
80for controlling the temperature of the supplied air
86by controlling compressors within refrigeration or heat pump circuits
F24F 11/88
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
88Electrical aspects, e.g. circuits
Applicants
  • 珠海格力电器股份有限公司 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI [CN]/[CN]
Inventors
  • 肖尊辉 XIAO, Zunhui
  • 曲东瑞 QU, Dongrui
  • 俞贤桥 YU, Xianqiao
  • 陈宁宁 CHEN, Ningning
Agents
  • 中国国际贸易促进委员会专利商标事务所 CCPIT PATENT AND TRADEMARK LAW OFFICE
Priority Data
201910818100.830.08.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PHOTOVOLTAIC AIR CONDITIONER CONTROL METHOD AND APPARATUS AND PHOTOVOLTAIC AIR CONDITIONER
(FR) PROCÉDÉ ET APPAREIL DE COMMANDE DE CLIMATISEUR PHOTOVOLTAÏQUE, ET CLIMATISEUR PHOTOVOLTAÏQUE
(ZH) 光伏空调控制方法、装置及光伏空调
Abstract
(EN)
A photovoltaic air conditioner control method and apparatus and a photovoltaic air conditioner. The method comprises: detecting in real time the grid-connected side inverter module temperature and the grid-connected side current of a photovoltaic air conditioner; determining the interval in which the grid-connected inverter module temperature is located and the interval in which the grid-connected side current is located; and, on the basis of the determining results, performing frequency-limiting and frequency-reduction control of the photovoltaic air conditioner. By means of the present method, rapid frequency limiting and reduction can be implemented without the need to detect the operating frequency of the compressor, preventing the equipment from being damaged due to the continuous increase of the operating frequency of the compressor when the power of the photovoltaic side power generation is high, and also avoiding repeated frequency limiting and reduction of the compressor affecting the current heating or cooling effect of the photovoltaic air conditioner.
(FR)
La présente invention concerne un procédé et un appareil de commande d'un climatiseur photovoltaïque, et un climatiseur photovoltaïque. Le procédé comprend les étapes consistant à : détecter en temps réel la température du module onduleur côté connecté au réseau et le courant côté connecté au réseau d'un climatiseur photovoltaïque ; déterminer l'intervalle dans lequel se trouve la température du module onduleur connecté au réseau et l'intervalle dans lequel se trouve le courant côté connecté au réseau ; et, sur la base des résultats de détermination, effectuer une commande de limitation de fréquence et de réduction de fréquence du climatiseur photovoltaïque. Au moyen du présent procédé, la limitation et la réduction rapides de fréquence peuvent être mises en œuvre sans qu'il soit nécessaire de détecter la fréquence de fonctionnement du compresseur, en empêchant l'endommagement de l'équipement dû à l'augmentation continue de la fréquence de fonctionnement du compresseur lorsque la puissance de la génération d'énergie du côté photovoltaïque est élevée, et en évitant également une limitation de fréquence et une réduction du compresseur répétées affectant l'effet de chauffage ou de refroidissement actuel du climatiseur photovoltaïque.
(ZH)
一种光伏空调控制方法、装置及光伏空调。其中,该方法包括:实时检测光伏空调的并网侧逆变模块温度及并网侧电流;判断所述并网侧逆变模块温度所处的区间以及所述并网侧电流所处的区间;根据判断结果对所述光伏空调进行限频及降频控制。通过该方法,无需检测压缩机运行频率,实现快速限降频,防止当光伏侧发电功率较大时,压缩机运行频率持续上升导致设备损坏,也避免了压缩机反复限降频,影响光伏空调现行制热或制冷效果。
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