Primary frequency modulation control method for steam turbine generator of double-shaft combined cycle unit
A technology of combined cycle unit and control method, which is applied in the direction of electric controller, comprehensive factory control, combined combustion mitigation, etc., can solve the problems such as the primary frequency modulation function of the steam turbine generator, and achieve optimal performance and control objectives, real-time performance Good, the effect of simple on-site debugging process
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[0023] In this embodiment, a method for primary frequency modulation control of a steam turbine generator of a dual-shaft combined cycle unit includes the following steps:
[0024] Step 1: Add a frequency modulation load pull-back control logic in the heat network temperature control loop configuration of the unit decentralized control system DCS, which is used to calculate the correction value Pf of the frequency modulation heat network temperature setting value; add a frequency modulation feedforward control logic , used to calculate the primary frequency modulation feed-forward control value Cf;
[0025] Step 2: In the heat network temperature control loop configuration of the unit decentralized control system DCS, add a frequency modulation temperature set point correction value control loop interface, and introduce the output of the frequency modulation load back control logic into this loop interface; Add a frequency modulation feedforward control loop interface in the h...
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