Method for building energy function of generator excitation controller

An energy function, generator technology, applied in the direction of controlling generators through magnetic field changes, complex mathematical operations, etc.

Active Publication Date: 2015-12-16
KUNMING UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

However, the optimization of PSS parameters ha...

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  • Method for building energy function of generator excitation controller
  • Method for building energy function of generator excitation controller
  • Method for building energy function of generator excitation controller

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Embodiment 1

[0031] Embodiment 1: as Figure 1-5 As shown, a method for establishing the energy function of the generator excitation controller, firstly, the Hamiltonian energy function of the generator excitation controller including the excitation automatic voltage regulator AVR and the power system stabilizer PSS is established by using the supply rate method, and the supply rate adopts The input and output variables of each link are described. After the energy function of the controller is obtained, the energy function of the controller is added to the Hamiltonian energy function of the generator to obtain the energy function of the generator including the entire excitation system.

[0032] The specific steps of the method for establishing the energy function of the generator excitation controller are as follows:

[0033] Step1. The energy supply rate of the PSS branch of the power system stabilizer is expressed as: ω 1 v 2 +v 2 v s ; The AVR branch of the excitation automatic volt...

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Abstract

The invention relates to a method for building an energy function of a generator excitation controller, and belongs to the technical field of generator control. According to the method, a hamilton energy function of the generator excitation controller comprising an exciting automatic voltage regulator (AVR) and a power system stabilizer (PSS) is built by a supply rate method; the supply rate is described by input and output variables of various links; and after the energy function of the controller is obtained, the energy function of the controller is added to a generator hamilton energy function, so as to obtain the generator energy function comprising the overall excitation system. By the supply rate method, the modeling problem of the energy function of the controller is solved; the controller can be conveniently written into the generator hamilton energy function; and the correctness of the modeling method is validated through a simulation result.

Description

technical field [0001] The invention relates to a method for establishing an energy function of a generator excitation controller, belonging to the technical field of generator control. Background technique [0002] Due to the nonlinear characteristics of the power system, the generator is connected to the system through the transmission line, and the high-magnification fast excitation system is used. The weak damping problem causes the dynamic instability of the generator, which is manifested as low-frequency oscillation. The main solution is to use the additional control PSS of the excitation control system. PSS is easy to implement and widely used. However, the optimization of PSS parameters has always been a hot and difficult issue of research. [0003] Generalized Hamiltonian theory is a way to solve nonlinear problems. Compared with traditional differential equations, the most notable feature of generalized Hamiltonian system is that the Hamiltonian structure and dam...

Claims

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Application Information

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IPC IPC(8): H02P9/14G06F17/15
Inventor 钱晶徐天茂丁一峰黎敬霞曾云张文英李璐于凤荣
Owner KUNMING UNIV OF SCI & TECH
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