Heat and Power Combined Dispatching Model with Renewable Energy, Electrical Heat Pumps, and Electrical boilers

摘要

In the northern region, there are lots of wind turbines, photovoltaic stations, and combined heating and power (CHP) units. However, in winter, it's difficult to satisfy both the heat load and large-scale renewable power accommodation. To solve this problem, this paper proposes a new heat and power combined dispatching model with renewable energy, electrical heat pumps, and electrical boilers. By considering transmission line constraints, tie line constraints, and heat load partition balancing, this model can compute large heat-power combined system and analyze the ability of the system to absorb renewable energy more accurately. Moreover, this model provides a larger perspective to analyze the tremendous impact that electrical heat pumps(EHPs) and electrical boilers bring to the system's ability to consume wind or solar power. To illustrate the effectiveness of the proposed model, a real power and heat combined system in a northern province of China is used in the case study.