Research on configuration and operation of the CCHP system applicable to active distribution network

In order to adapt to the active control and management of active distribution network (ADN), this paper proposes a new combined cooling, heating and power (CCHP) system. The electric heat pump is used to consume the power generated by the generator for adjusting the power peak of the network, and let the renewable energy generation sent more power to the ADN. The storage tank is integrated with the electric heat pump to recover the waste heat of flue gas. The system flow and the operation mode are studied. Through calculation and analysis of actual case, the operation characteristics of the system are obtained. According to the hourly analysis of the operation, the configurations of the system are given. The research results show that the system not only can meet the management of the ADN and decrease the wind power curtailment rate, but also can meet the heating and cooling requirements of the users. Meanwhile, the full heat of the flue gas can be recovered and the energy efficiency of the system is effectively increased. This paper can provides technical support for the application of the system in the future smart grid.