Research on the drive system and logic threshold control strategy of the hybrid power gas engine heat pump

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• 作者：Wenxiu Ji ; Liang Cai ; Qingkun Meng ; Gaofeng Sun ; Xiaosong Zhang
• 关键词：hybrid power ; GEHP ; parallel type ; hybridization degree ; control strategy
• 刊名：Building Simulation
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：9
• 期：2
• 页码：165-173
• 全文大小：1,922 KB
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• 作者单位：Wenxiu Ji (1)
  Liang Cai (1)
  Qingkun Meng (1)
  Gaofeng Sun (1)
  Xiaosong Zhang (1)
  
  1. School of Energy and Environment, Southeast University, 2 Sipailou Street, Xuanwu District, Nanjing, 210096, China
  
• 刊物类别：Engineering
• 刊物主题：Building Construction, HVAC and Refrigeration
  Engineering Thermodynamics and Transport Phenomena
  Atmospheric Protection, Air Quality Control and Air Pollution
  Environmental Computing and Modeling
  Chinese Library of Science
  
• 出版者：Tsinghua University Press, co-published with Springer-Verlag GmbH
• ISSN：1996-8744

文摘

Gas engine heat pump is an important distributed power supply system in the energy structure. Hybrid power technique plays an important role in improving the engine performance and the gas conversion efficiency of gas engine heat pump (GEHP). In this paper, a design method of a hybrid power drive system is presented, including the selection method of drive type, and the selection of power hybrid approach. The relation between gas loss coefficient and the equivalent efficiency of drive system has been analyzed. The results show that the most suitable drive type is parallel-type. The optimum hybridization degree is 0.412; the rated power of motor is 8.75 kW. Based on the design method of the drive system, logic threshold control strategy is implemented in the hybrid power gas engine heat pump (HPGHP) system, which is composed of the switching law of transmission and the torque control of motor. According to the experimental verification, the gas consumption rate of gas engine can be controlled to be below 330 g/kWh. The gas conversion efficiency can increase about 7.6% when the logic threshold control strategy is used in the HPGHP system. Keywords hybrid power GEHP parallel type hybridization degree control strategy