Using energy storage in heat supply net can change the proportion of heat supply units' power and heat load thus to enhance the units' rapid load regulation ability.Changing the power load by fuel amount costs long time

while by energy storage in heat supply net is fast.On this basis

a rate multi-scale decomposition method was chosen

which could decompose load command into slow-varying signal and fast-varying signal.Adding these two signals on fuel and heat supply regulating valve command separately

a multiscale feedforward coordinated control method with closed-loop heat supply control was obtained.The simulation results show that

when the units' load changes fast

the multi-scale feedforward control method can reduce the fuel amount fluctuation effectively.Within permitted heat supply extraction pressure scale

a smaller decomposition rate is benefit to the units' stability.