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A kind of agc optimization method of electric power system considering generator advanced controller

A technology of power system and optimization method, which is applied in the direction of single-network parallel feeding arrangement, etc., to achieve the effect of improving the overall control effect, improving utilization efficiency, and excellent regulation performance

Inactive Publication Date: 2018-04-10
SOUTHEAST UNIV +3
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  • Application Information

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Problems solved by technology

However, when there are differences in the controller characteristics of the underlying generator components, such as some units using advanced valve controllers and some using traditional PID controllers, the AGC allocation strategy needs to be adjusted taking into account the differences in controller characteristics , so as to effectively improve the utilization efficiency of the existing AGC system and make the regional performance more efficient, but there is no relevant research in this area

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  • A kind of agc optimization method of electric power system considering generator advanced controller
  • A kind of agc optimization method of electric power system considering generator advanced controller
  • A kind of agc optimization method of electric power system considering generator advanced controller

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Embodiment Construction

[0021] The present invention is described in detail below in conjunction with accompanying drawing:

[0022] Such as figure 1 Shown system flow diagram of the present invention;

[0023] The generator set in the power system targeted by the present invention includes three parts: generator, excitation system, steam turbine and its speed regulation system. The present invention considers the power system AGC control method of advanced controller, and its realization steps are as follows:

[0024] Step A, design the advanced controller of the underlying generator based on the inverse system method;

[0025] Step A-1, selecting a suitable underlying controller;

[0026] In this embodiment, the angular velocity nonlinear valve controller is selected, and the structural model of the generator with the governor is first obtained as follows:

[0027]

[0028] In the formula, δ is the rotor angle of the generator, ω is the angular velocity of the rotor of the generator, H is th...

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Abstract

The invention discloses a power system AGC (Automatic Generation Control) optimization method related to an advanced generator controller, which belongs to the technical field of power system control. Firstly, an advanced generator valve controller is designed on the basis of an inverse system method, secondly, an optimization model is established according to the characteristic difference of bottom generator controllers by using an optimal regional performance index as a target, and an allocation strategy is solved, so as to form an AGC active regulating command sent to bottom generator elements. The power system AGC optimization method accords with the operation situation of a power system AGC process, and the efficiency of an existing AGC system can be effectively improved, so that the regional performance is good.

Description

technical field [0001] The invention belongs to the technical field of power system control, and relates to an AGC optimization control method of a power system taking into account an advanced controller of a generator. Background technique [0002] Power system automatic generation control (hereinafter referred to as AGC) is to adjust the active power of the generator in the local control area of ​​the power system, so that the power deviation of the tie line between the local control area and other control areas and the system frequency deviation meet the operation requirements, so as to ensure the power grid Safe and high-quality operation. [0003] At present, in the actual power grid operation, the bottom generator is generally based on the traditional proportional-integral-differential controller (Proportion Integration Differentiation Controller) to control the valve opening, and then adjust the active power output. When AGC distributes the general adjustment command...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46
CPCH02J3/46
Inventor 李璐张强李金文张凯锋郭小江郭强张玉红孙玉娇
Owner SOUTHEAST UNIV