Thermal power generating unit load economical efficiency distribution method

The invention belongs to the technical field of power system load distribution, and particularly relates to a thermal power generating unit load economic distribution method, which comprises the following steps of: establishing a load economic distribution model by taking minimum thermal power generating unit load distribution cost as an objective function; establishing internal constraint conditions by taking the unit capacity and the unit output limit as unit related parameters; establishing an external constraint condition about load balance according to a price type demand; and according to the internal constraint condition and the external constraint condition, solving the objective function by adopting an improved colistin optimization algorithm to obtain a load economy distribution scheme of the thermal power generating unit. The method breaks through the traditional thermal power generating unit which only considers the unit operation cost, introduces the price-type demand response to consider the use