Method for rapidly stabilizing speed in impulse rotating process of expansion generator set
A generator set, stable speed technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems such as unfavorable unit rapid start and grid connection, difficult to achieve fine speed adjustment and fast adjustment control, slow speed control response, etc.
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[0038] Embodiment 1: as figure 1 As shown, a method for quickly stabilizing the rotational speed of an expansion generator set during the run-in process, including a rotational speed measurement module, a rotational speed fine adjustment loop, a rotational speed rapid adjustment loop, and a calculation module for the inlet pressure of the final expander stage group.
[0039] Equipment preparation before the implementation of the invention:
[0040]In this embodiment, the rated rotational speed of the generator is 3000 r / min, the number of teeth of the speed measuring gear of the generator is 60, and the frequency of the original signal of the rotational speed of the generator is 50 Hz. The speed measurement module includes two parts: the speed probe and the supporting preamplifier and the speed card. The speed probe adopts Bentley 3500 eddy current sensor and the supporting preamplifier; the sampling frequency of the speed card is 1000Hz, and the operation cycle of the speed c...
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