The coexistence of pollution from coal-fired heating and inefficient utilization of renewable resources in northern China has raised great concern. Current studies on heat-power systems are primarily focused on traditional combined heat and power (CHP) systems and are limited to static energy flow analysis or the dynamic characteristics of a single system component. Hence

it is difficult to make full use of the complementary potential of electrical energy and heat energy. This paper proposes a heat-power station (HPS) system based on renewable energy for the purpose of utilizing the surplus renewable energy to generate heat and meet heating demands. The overall architecture of the HPS system is established and its operational principle and dynamic characteristics of both the electrical and heating components in the system are analyzed and dynamic mathematical models are also presented. In addition

a coordinated electro-thermal control method based on system characteristics is designed to ensure the normal operation of a HPS. Simulation results verify the effectiveness of the model and control in the case of renewables fluctuation and heat load variations.