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Title:
DYNAMIC HEATING FREQUENCY OPTIMIZATION AND CONTROL METHOD FOR TWO-STAGE VARIABLE-FREQUENCY AND TWO-STAGE COMPRESSION HEAT PUMP WATER HEATER
Document Type and Number:
WIPO Patent Application WO/2019/080276
Kind Code:
A1
Abstract:
A dynamic heating frequency optimization and control method for a two-stage variable-frequency and two-stage compression heat pump water heater, for optimizing and adjusting, throughout the operation of dynamic heating, the operating frequencies of a low-pressure stage variable-frequency compressor and a high-pressure stage variable-frequency compressor, segmenting and setting the operating frequency of the low-pressure stage compressor (1), enabling the segmented operating frequencies of the low-pressure stage variable-frequency compressor (1) in various temperature ranges to be distributed in a manner of arithmetic progression, such that the total energy consumption of the heat pump water heater throughout the operation is minimized. When the actual operation condition of the heat pump water heater deviates from a reference operation condition, the segmented operation frequency of the low-pressure stage variable-frequency compressor (1) corresponding to each temperature range of a water tank (7) is corrected according to the actual outdoor temperature.

Inventors:
WU, Zhijiang (Desheng East Road, Shunde DistrictFoshan, Guangdong 9, 528399, CN)
LI, Dongming (Desheng East Road, Shunde DistrictFoshan, Guangdong 9, 528399, CN)
LI, Xiyu (Desheng East Road, Shunde DistrictFoshan, Guangdong 9, 528399, CN)
WANG, Siyan (Desheng East Road, Shunde DistrictFoshan, Guangdong 9, 528399, CN)
XU, Yansheng (Desheng East Road, Shunde DistrictFoshan, Guangdong 9, 528399, CN)
PENG, Ying (Desheng East Road, Shunde DistrictFoshan, Guangdong 9, 528399, CN)
CHEN, Miaoyang (Desheng East Road, Shunde DistrictFoshan, Guangdong 9, 528399, CN)
Application Number:
CN2017/115118
Publication Date:
May 02, 2019
Filing Date:
December 08, 2017
Export Citation:
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Assignee:
SHUNDE POLYTECHNIC (Desheng East Road, Foshan, Guangdong 9, 528399, CN)
International Classes:
F25B7/00; F24H9/20; F25B30/02
Foreign References:
CN104501421A2015-04-08
CN104633942A2015-05-20
CN106016760A2016-10-12
CN103836789A2014-06-04
JP2005147542A2005-06-09
Other References:
HUANG JUAN ET AL.: "Experimental Study on variable Frequency Air Source Heat Pump Water Heater", CHIAN HOUSEHOLD APPLIANCE TECHNOLOGY CONFERENCE MEMOIRS, 8 November 2016 (2016-11-08)
Attorney, Agent or Firm:
FOSHAN KESHUN PATENT AGENCY (Room 108, Floor 3 Building 4, Unit A, Daliang Street, Shunde Distric, Foshan Guangdong 9, 528399, CN)
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