A method for constructing a matrix model of a start-up and shutdown strategy that can satisfy the active power of a power station

Abstract

The invention discloses a method for constructing a start-up and shutdown strategy matrix model that can satisfy the active power of a power station. The matrix model is based on the operation of all units currently engaged in the intelligent start-up and shutdown under the condition of specifying various parameters of the hydropower station participating in the intelligent start-up and shutdown. Based on the state, the operating conditions after changing the start-stop state of a unit are used as a start-stop strategy; for the current mode and different start-stop strategies, an intelligent start-stop matrix model S with 2 rows and n+1 columns is established. j For all participating units, the cycle operation method is used to judge whether to start and stop intelligently. The invention is suitable for hydropower stations of different types of hydropower units including conventional type units, units in a single proposed operation area, and units in a dual recommended operation area; the start-stop strategy can be generated on the matrix model to provide auxiliary prompts to operators, or automatically Generating start and stop commands; thus, the difference of unit types no longer constitutes an application obstacle, and the present invention has wide applicability.

Description

technical field [0001] The invention belongs to the technical field of hydropower generation control, and relates to a method for constructing a start-up and shutdown 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 the preset sequence control process without human intervention. The automatic start-stop function greatly reduces the workload of operators, eliminates the possibility of human error operation, and improves the success rate of start-up and shutdown, but operators still need to manually trigger the start-up 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...

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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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