Household Photovoltaic Intelligent Power System Based on Energy Storage

Liu Junhong; Sun Nan; Chen Si; Wu Jianheng; Cui Ping

doi:10.12465/j.issn.0253-4339.2025.03.048

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Household Photovoltaic Intelligent Power System Based on Energy Storage

Energy Storage Technology | 更新时间：2025-05-30

- Household Photovoltaic Intelligent Power System Based on Energy Storage
- Journal of Refrigeration Vol. 46, Issue 3, Pages: 48-56(2025)
- 作者机构：
  
  1.山东建筑大学热能工程学院　济南　 250101
  2.济南热力集团有限公司　济南　 250014
  3.山东省建筑设计研究院有限公司　济南　 250001
- 作者简介：
  
  Liu Junhong, female, associate professor, School of Thermal Energy Engineering, Shandong Jianzhu University, 86-13791062800, E-mail: ljhruby@sdjzu.eud.cn. Research fields: refrigeration and air conditioning, building energy-saving technology.
- 基金信息：
  
  National Natural Science Foundation of China(52278115)
- DOI：10.12465/j.issn.0253-4339.2025.03.048
  CLC： TB657.5;TU831.4
- Received：20 December 2024，
  
  Revised：31 January 2025，
  
  Accepted：10 February 2025，
  
  Published：16 June 2025
- 稿件说明：
移动端阅览
Liu Junhong, Sun Nan, Chen Si, et al. Household Photovoltaic Intelligent Power System Based on Energy Storage[J]. Journal of refrigeration, 2025, 46(3): 48-56.
DOI：

Liu Junhong, Sun Nan, Chen Si, et al. Household Photovoltaic Intelligent Power System Based on Energy Storage[J]. Journal of refrigeration, 2025, 46(3): 48-56. DOI： 10.12465/j.issn.0253-4339.2025.03.048.

摘要

为增加户用光伏就地消纳能力，满足人们对生活居住环境舒适便捷的需求，提出一种能够满足家庭用电、冬季供暖、夏季制冷、全年生活热水供应需求的户用光伏智能用电系统，其中供暖制冷采用空气源热泵+地暖+风机盘管+蓄能水箱（冬蓄热水、夏蓄冷水）的方式。以山东省某民宅为研究对象，建立了该系统的TRNSYS仿真模型，根据模拟结果和当地当时电价对蓄能运行方案进行优化，并分析了系统的经济性。结果表明：该系统在满足建筑全年用电和保证冬夏季室内温度的同时，还可获得光伏电上网收益，全生命周期内收益最高。空气源热泵最优运行方案为冬季09:00—16:00、22:00—05:00工作，夏季07:00—18:00、22:00—05:00工作；可控型电器在10:00—16:00使用，有储能性电器在11:00—14:00使用，可进一步消储光伏电。蓄能水箱比无水箱时减少46%耗标煤量，节能效果显著。

Abstract

A household photovoltaic intelligent power supply system was proposed to increase the on-site consumption capacity of household photovoltaics and fulfill the requirements for a comfortable and convenient living environment. The system can fulfill the requirements of household electricity

space heating

space cooling

and hot water supply throughout the year. Heating and cooling were realized using air source heat pumps (ASHP)

underfloor heating

fan coil units

and energy storage water tanks

which store hot water in winter and cold water in summer. A TRNSYS simulation model of the system was created based on residential buildings in Shandong

China. Based on the simulation results and local electricity prices

the energy storage operation plan was optimized

and the economic efficiency of the system was analyzed. The results indicate that the system can meet the building's year-round electricity consumption

maintain indoor temperatures in winter and summer

and generate revenue from photovoltaic power

yielding the maximum return on investment throughout the entire life cycle. The optimal operating schedule for the ASHP is from 09:00 to 16:00 and 22:00 to 05:00 in winter and from 07:00 to 18:00 and 22:00 to 05:00 in summer. Controllable electrical appliances were used from 10:00 to 16:00. In contrast

appliances with energy storage were used from 11:00 to 14:00 to consume and store the photovoltaic electricity. The energy-storage water tank reduces standard coal consumption by 46% compared to the case without a water tank

demonstrating a substantial energy-saving effect.

关键词

Keywords

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