Method of residual pressure waste heat generating set participating in power plant AGC regulation

The invention discloses a method of a residual pressure waste heat generating set participating in power plant AGC regulation. The method comprises steps that a residual pressure waste heat generating set is additionally disposed on a station high pressure segment of a power plant unit generating set; the small steam turbine speed regulation system of the residual pressure waste heat generating set and a unit generating set control system are respectively connected with power plant electrical processing units RTU; the power plant electrical processing units RTU are used to transmit AGC instructions to the small steam turbine speed regulation system and the unit generating set control system at the same time; the residual pressure waste heat generating set and the unit generating set are used for output regulation according to the received instructions. By adopting cooperation between the load adjustable characteristic of the residual pressure waste heat generating set and the power plant unit generating set f