Based on the unit control performance standard(UCPS)considering the comprehensive performance of units primary and secondary frequency modulation

this paper comprehensively explains the influence of different energy states on power grid and generator units through an analysis of energy states on power grid and energy characteristics for ultra suoercritical units. And a study is made on the load frequency control strategy leading to win-win for power grid and generator units. This strategy utilizes the coal-fired units “energy deviation” to actively participate in peak regulation of the grid and appropriately assign the automatic generation control(AGC)load modulation task

which can exploit the fine frequency regulation performance of units. Through the experimental comparison and analysis to the same type units

it is also beneficial to improving the frequency quality of power grid and the stability and economic performance of the units using UCPS control strategy to realize both power grid and generator units coordinated control grid frequency overall optimal target.