Startup and shutdown strategy matrix model capable of meeting active power of power station

Abstract

The invention discloses a startup and shutdown strategy matrix model capable of meeting the active power of a power station, the matrix model has a startup and shutdown strategy that the operation condition of one unit after the startup and shutdown state is changed based on the operation states of all units which are put into intelligent startup and shutdown at present under the condition that all parameters of the hydropower station participating in intelligent startup and shutdown are clear; and for the current mode and different startup and shutdown strategies, two rows and n+1 columns ofintelligent startup and shutdown matrix models Sj are established, and whether all participating units are intelligently started and shut down or not are judged by adopting a cyclic operation mode. The startup and shutdown strategy matrix model is suitable for hydropower stations of different types of hydroelectric generating units including a conventional type unit, a single-suggested operation area unit and a double-suggested operation area unit. A startup and shutdown strategy can be generated on the matrix model, auxiliary prompt is provided for an operator, or a startup and shutdown instruction is automatically generated; therefore, the difference of the types of the units does not form application obstacles any more, and the startup and shutdown strategy matrix model has wide applicability.

Description

technical field [0001] The invention belongs to the technical field of hydroelectric power generation control, and relates to a start-stop strategy matrix model that can satisfy the active power of a power station. Background technique [0002] At present, most of the unit start-up and shutdown operations of hydropower stations are automatically completed by the programmable logic controller (PLC) of the local control unit (LCU) of the computer monitoring system through a preset sequence control process without human intervention. The automatic startup and shutdown function greatly reduces the workload of operators, eliminates the possibility of human error, and improves the success rate of startup and shutdown. However, operators still need to manually trigger the startup process or shutdown process, so there are the following problems: [0003] 1) The remote centralized control of multiple hydropower stations through the basin centralized control center or elevator dispatc...

AI Technical Summary

Problems solved by technology

However, this method does not take into account the problem of high-head giant hydropower units avoiding the restricted operation area, nor does it consider the complexity caused by factors such as the reserved capacity for secondary frequency regulation and the diversity of unit operation area combinations, so it is difficult to meet the requirements of conventional hydropower stations. automation control requirements

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