Electrical control device for triggering FCB
An electrical control device and logic control module technology, applied in program control, computer control, general control system, etc., can solve problems such as lack of unity, FCB trigger failure, unit operation loss, etc., achieving small investment, simple implementation method, and flexibility. Actionable effect
Pending Publication Date: 2022-02-01
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology
[0004] In the past, the trigger logic of FCB was implemented in different ways by each factory, and there was no unified standard. FCB trigger failure often occurred, causing great losses to the operation of the unit.
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[0023] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only The embodiments are a part of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0024] The schematic diagrams of the structures according to the disclosed embodiments of th...
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The invention discloses an electrical control device for triggering an FCB. The electrical control device comprises a signal input module, a logic control module, a signal output module, a signal expansion module, a signal expansion output module, a stable or out-of-step disconnection device output signal input end, a zero-power generator tripping protection action output signal input end, a main throttle valve full-open position signal input end, a field suppression switch closing position signal input end, an FCB mode reset signal input end, an FCB mode trigger signal output end, a trip main transformer high-voltage side switch signal output end, an excitation grid-connected signal output end, a locking fast switching device signal output end and a diesel generator starting signal output end. The electrical control device can effectively generate a signal for triggering the FCB, so that the unit smoothly enters an FCB mode.
Description
technical field [0001] The invention belongs to the technical field of electric power debugging and electric power test, and relates to an electric control device for triggering FCB. Background technique [0002] The fast load shedding (FCB) function of the generator set means that after the power grid breaks down and the unit instantly sheds all the external power supply load, the boiler load is quickly reduced and the combustion is stable, so as to ensure that it can be used to maintain power generation under the condition of non-stop boiler The automatic control function of the decoupling of the machine and the isolated grid operation of the factory power or the shutdown without the furnace. After the power grid fault is eliminated, the unit can be connected to the grid immediately and run with load. [0003] The main causes of unit FCB are low frequency, out-of-step, main transformer (hereinafter referred to as main transformer) outlet circuit breaker tripping, line bac...
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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 王团结李毅赵勇李佳东王新
Owner XIAN THERMAL POWER RES INST CO LTD