高比例新能源接入电网光热发电-火电联合调峰优化控制方法

Optimal control method of peak load regulation combined concentrating solar power and thermal power for power grid accessed with high proportion of renewable energy

为了解决高比例新能源接入电网调峰能力不足的问题,提出光热发电-火电联合调峰优化控制方法。分析光热发电的可调节特性以及光热发电-火电联合调峰控制的可行性,基于此,提出高比例新能源接入电网光热发电-火电联合调峰优化控制模式;进而提出以系统受阻风光电最小为目标的光热发电-火电联合调峰优化控制方法。算例仿真表明所提优化控制方法可有效提高系统调峰能力以及减少受阻风光电量。

In order to solve the problem of insufficient peak load regulation ability for power grid accessed with high proportion of renewable energy,an optimal control method of peak load regulation combined CSP(Concentrating Solar Power)and thermal power is proposed.The adjustable characteristics of CSP and the control feasibility of peak load regulation combined CSP and thermal power are analyzed,on this basis,an optimal control mode of peak load regulation combined CSP and thermal power is proposed for power grid accessed with high proportion of renewable energy.Furthermore,an optimal control method of peak load regulation combined CSP and thermal power is proposed with the minimum system blocked wind and solar power as its objective.Case simulation shows that the proposed control method can effectively improve system peak load regulation ability and reduce the blocked wind and solar power.