Multi-operation state traction control of regional coal-fired and gas-fired combined power generation system

Abstract

The traditional dispatching model and strategy of coal-fired and gas-fired power units are difficult to take into account the minimum total cost of power generation and the stable output of each unit. Therefore, this paper proposes a staged traction control model of coal-fired and gas-fired combined power generation, aiming at the minimum total power generation cost and stable output of the units. Based on the safe operation constraints of the regional coal-fired and gas-fired combined power generation system, the particle swarm optimization algorithm is adopted to solve the traction control strategy of the regional coal-fired and gas-fired combined power generation system in multiple operation states. The example simulation shows that the traction control strategy of regional coal-fired and gas-fired combined power generation systems in multiple operating states can realize flexible, coordinated control of each unit. Based on quickly responding to the change in load demand, it meets the minimum total power generation cost of regional coal-fired and gas-fired combined power generation systems. It makes the unit output stable to prolong the service life of the unit.