Model to adapt fluctuating wind-power heat sources in urban district heating system with DVSP configuration

抄録

Wind power has been developed rapidly under the administrative encouragement policy in recent decade. Wind-power heating system has been a promising low carbon emission approach in context of 4th Generation District Heating that more renewables and energy saving technologies can access to energy supply system conveniently. Instead of the conventional central circulating pump configuration, an alternative configuration of Distributed Variable-Speed Pumps proposed to be suitable for the fluctuating wind-power heating system. Moreover, the advanced Model Predictive Control method can also be employed to relieve the hydraulic imbalance in the proposed configuration. Then, a new mathematical model is proposed here to adapt fluctuating wind-power heat sources in urban DH system with consideration of pipe blockages. It is also applied to a real looped DH system with one CHP heat source and 3 wind-power heat sources. The result shows that the wind share can be 40.81% while the wind curtailment rate reaches 6.75%. The proposed model can be developed to simulate onsite operation to save more wind power.