Variable frequency starting control method of heavy-type gas turbine unit
A technology for gas turbines and units, applied in control systems, control generators, electrical components, etc., can solve problems such as sustainability impacts, achieve simple and reliable control, save start-up time, and improve power factor and efficiency.
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[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0029] figure 1 It shows the flow chart of the heavy-duty gas turbine set frequency conversion start control method in the embodiment of the present invention; the frequency converter collects the machine terminal voltage, machine terminal current and speed signal of the gas turbine set in real time, and the specific steps are:
[0030] (1) After receiving the purge instruction sent by the monitoring system of the gas turbine unit, the frequency converter enters the forced commutation working mode, and performs constant torque control on the gas turbine unit; the excitation system of the gas turbine unit controls the excitation current I fd For closed-loop control, the excitation current I fd It is a constant current before the machine terminal voltage reaches the rated vol...
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