Optimal Operation Strategy for Integrated Energy System Considering Operation Characteristics of Cogeneration System

With the depletion of fossil energy and the popularity of renewable energy, a comprehensive energy system with the goal of improving system energy efficiency and consuming renewable energy is booming. Based on the combined heat, power, and heat generation, this paper builds a comprehensive energy system operation optimization model in conjunction with ground source heat pumps. It aims to find the optimal operation strategy based on the actual situation of the park’s load, equipment capacity, and energy prices. Using the linear programming method, a mathematical model with the best economic efficiency of the integrated energy system is established, the optimal operation strategy for a typical day is analyzed, and the annual operation is simulated. Finally, it compares with conventional energy supply methods and analyzes the contribution to the consumption of renewable energy.

Download Full-text

Comparative study of optimization method and optimal operation strategy for multi-scenario integrated energy system

Energy ◽

10.1016/j.energy.2020.119311 ◽

2020 ◽

pp. 119311

Author(s):

Di Wu ◽

Zhonghe Han ◽

Zhijian Liu ◽

Peng Li ◽

Fanfan Ma ◽

...

Keyword(s):

Comparative Study ◽

Energy System ◽

Optimization Method ◽

Optimal Operation ◽

Operation Strategy ◽

Integrated Energy System

Download Full-text

Optimal Operation Strategy of Port Integrated Energy System Considering Demand Response

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) ◽

10.1109/ei250167.2020.9346904 ◽

2020 ◽

Author(s):

Yue Pu ◽

Wei Chen ◽

Ruicong Zhang ◽

Haoming Liu

Keyword(s):

Demand Response ◽

Energy System ◽

Optimal Operation ◽

Operation Strategy ◽

Integrated Energy System

Download Full-text

Optimal Operation Strategy of a Community Integrated Energy System Constrained by the Seasonal Balance of Ground Source Heat Pumps

Sustainability ◽

10.3390/su12114627 ◽

2020 ◽

Vol 12 (11) ◽

pp. 4627

Author(s):

Jianan Liu ◽

Hao Yu ◽

Haoran Ji ◽

Kunpeng Zhao ◽

Chaoxian Lv ◽

...

Keyword(s):

High Efficiency ◽

Energy System ◽

Heat Pumps ◽

Optimal Operation ◽

Coefficient Of Performance ◽

Operation Strategy ◽

Ground Source Heat Pumps ◽

Integrated Energy Systems ◽

Ground Source ◽

Integrated Energy System

Ground source heat pumps (GSHPs) are now widely used in community integrated energy systems (CIES) because of their high efficiency in energy conversion. However, the coefficient of performance (COP) of GSHPs is unstable if the soil temperature changes with seasonal imbalanced cooling and heating loads, thus downgrading the overall performance of CIES. In this paper, an annual optimization model for CIES that considers the seasonal balance of GSHPs is established. Then, a day-ahead operation strategy based on the pre-allocated load of the GSHP in the yearly balance is proposed while considering the uncertainties in daily conditions. The proposed strategy is validated on a practical CIES in China and assessed on a year-round time scale. The results show that the operation of CIES can be stable, economical and sustainable while ensuring the seasonal balance of the GSHP.

Download Full-text