A method and system for automatic start and stop of power station based on active power planning curve

By adopting the automatic start-up and stop method and system based on the active power planning curve in the power station, the problems of time waste caused by manual start-up and stop, frequent start-up and stop of the unit and low degree of automation are solved, and more reasonable and more accurate start-up and stop of the unit are achieved. Load regulation improves unit life and grid stability.

CN117318185BActive Publication Date: 2025-01-24HUANENG LANCANG RIVER HYDROPOWER CO LTD
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Patent Information

Application Number
CN202311245545.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-25
Publication Date
2025-01-24
Estimated Expiration
2043-09-25

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Abstract

The present application proposes a method and system for automatic start and shutdown of a power station based on an active power plan curve, the method comprising: obtaining the active power plan curve of the power station for the whole plant today; performing automatic start and shutdown operations of the power station according to the active power plan curve of the whole plant today; wherein the active power plan curve of the whole plant includes a V-shaped curve. The technical solution proposed in the present application eliminates the need for manual start and shutdown operations for the centralized control and power plant, and eliminates the need for manual load adjustment in the vibration zone of the unit, saving a lot of operation time for the on-duty personnel, and making the start and stop of the unit more reasonable, and the load adjustment more accurate and stable, thereby increasing the life of the unit and ensuring the safe and stable operation of the power grid; there is no need to exit AGC control during the start and stop process of the unit, which improves the availability of AGC, can provide frequency regulation services stably and continuously, improves the automation level of the power station, and avoids the deduction of frequency regulation mileage compensation and AGC regulation capacity compensation for the corresponding transaction cycle due to the cumulative time of exiting AGC exceeding 5 minutes, thereby improving the company's economic benefits.
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Citation Information

Patent Citations

  • Hydropower station AGC control system and method in automatic mode

    CN114243757A

  • AGC automatic startup and shutdown method in load curve mode

    CN115811099A