The invention relates to a thermal power
generating unit coal feed amount control method based on
frequency modulation and peak regulation of a
power grid. The method includes the following steps that a thermal power
generating unit coal feed amount control loop interface based on
frequency modulation and peak regulation of the
power grid is added to a logical configuration
coal feed amount control loop of an original coordination
control system; logical configuration of a thermal power
generating unit coal feed amount control loop based on
frequency modulation and peak regulation of the
power grid is carried out, and output of the logical configuration of the thermal power generating unit coal feed amount control loop based on frequency modulation is introduced to the thermal power generating unit coal feed amount control loop interface based on frequency modulation and peak regulation of the power grid to serve as feedforward signals for controlling the coal feed amount; the
control system is put into actual operation, according to the real-time operation curve, relevant parameters of the thermal power generating unit coal feed amount control loop based on frequency modulation and peak regulation of the power grid are set online, and finally the expected
control effect is achieved. By means of the existing DCS coordination
control system, the real time performance is good, the on-site debugging process is simple, and project realization is facilitated. By judging the operating state of the unit, the coal feed amounts of the unit in different operation states are accurately controlled, fast load response of the unit participating in frequency modulation and peak regulation and the stability of main parameters are guaranteed, the labor intensity of operators is reduced, and the safety and the economical efficiency of operation of the unit are greatly improved.