Method and device for determining parameters of feed forward controller of coordination system

Abstract

The invention discloses a method and a device for determining parameters of a feed forward controller of a coordination system. The method comprises the following steps: carrying out machine set property modeling according to a machine set thermodynamic property disturbance test; designing the feed forward controller according to a modeling result and parameters under various working conditions of a machine set in a power plant DCS historical database; determining the parameters of the feed forward controller according to steady-state parameters, constant load variable pressure tests and constant pressure variable load tests under the various working conditions of the machine set in the power plant DCS historical database; after performing DCS logic constitution on the feed forward controller and the parameters of the feed forward controller, and assembling the feed forward controller on a power plant DCS system, carrying out variable load tests at different rates, and adjusting the parameters of the feed forward controller according to the test results to enable the machine set to meet the operation demands in a variable load process. The frequency modulation and peak regulation performance, the safety and the stability of the machine set are solved fundamentally, and the economical efficiency of the machine set is improved greatly.

Description

technical field [0001] The invention relates to the technical field of power control, in particular to a method and device for determining parameters of a feedforward controller of a coordination system. Background technique [0002] In order to meet the requirements of the power regulatory department and the power grid, it is urgent to greatly improve the frequency modulation and peak regulation performance of the unit. For this reason, higher requirements are put forward for the parameter optimization and control quality of the unit coordinated control system. The coordinated control system can run safely and stably, and has good load following and pressure regulation performance, and try to make the steady-state error as Zero, and while greatly improving the peak shaving performance, it minimizes the impact of the unit control system on the operation safety, stability and economy. In many years of power plant commissioning and production practice, the control objects of ...

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method and device for determining the parameters of the feedforward controller of a coordination system, to at least solve the problem that the structure and parameters of the feedforward controller in the prior art are determined by human experience, which is highly subjective and consumes a lot of money. The time and opportunity of the test, the unit is in the test state for a long time, and there are potential safety hazards

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