Energy saving operation optimization in urban district heating system: A case study

Puts forward a suit of energy saving scheme and control strategy applied to urban district heating system. This scheme adopts balancing control strategy in primary network, which can solve the imbalance among the heating stations. The scheme also includes optimized heat source schedule and precise input frequency control of pump in secondary network, which can significantly decrease heat supply and electric consumption, and meanwhile guarantee the room temperature, realizing the high efficient operation of district heating system. This scheme has been applied in a large-scale district heating system in Taiyuan, achieving excellent energy-saving effect.