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Modeling method of strategy table and strategy table searching match of stable control device

A strategy search and stabilization control device technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as increased strategy complexity, achieve clear physical concepts, improve overall efficiency, and reduce secondary development work amount of effect

Inactive Publication Date: 2014-11-05
NR ELECTRIC CO LTD +1
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  • Description
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  • Application Information

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Problems solved by technology

With the continuous expansion of the scale of the power system, the increase in the complexity of the strategy, and the increase in the number of devices in operation, the secondary development of the stability control project is facing great challenges
[0006] Practical experience shows that due to the strong coupling between the control strategy table and the strategy search and matching software, a large amount of secondary development work in the implementation of the stability control project after the strategy is changed

Method used

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  • Modeling method of strategy table and strategy table searching match of stable control device
  • Modeling method of strategy table and strategy table searching match of stable control device
  • Modeling method of strategy table and strategy table searching match of stable control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Take a typical control strategy as an example:

[0050] Connection line A and line B of a certain voltage level run double-circuit S, and the fault "f" single-circuit line trips, causing the other circuit overload s, and it is necessary to remove unit "x" of plant C, and load "y" MW of plant D. Substitute the content of the above policy table into

[0051] Formula (2) gets:

[0052] M = ({S, s}, {s}, {f}, {x, y}, {s×f->S}, {s×f->{x,y}}) (3)

[0053] In formula (3), the running state, {S, s}, {s}, the disturbance event {f} and the control measures {x, y} are static content, and the policy table is relatively fixed after the formation, and the expression and processing are relatively simple ; while the matching process of search control measures {s×f->S}, {s×f->{x,y}} is dynamic, it needs to give control measures according to the disturbance input and combined with the current operation mode, this part of the processing It is relatively complicated, and it is a link with...

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Abstract

The invention relates to a modeling method of a strategy table and strategy searching match of an electric network safety stable control device. A strategy stable and strategy searching match process is summed up in four elements such as current state, event, action and next state, a mapping relation is established for the four elements and elements of a limit state machine, and a mealy-type limit state machine digital model for the strategy table and the strategy searching match of the stable control device is formed; and the strategy table and the strategy searching match process is summed up into four elements of current state, event, action and next state and expressed by a uniform limit state machine digital model, so that the decoupling of the strategy table and strategy searching match process is realized, the flow of the software compilation and test can be simplified, the overall efficiency for implementing the stable control engineering is greatly improved, and direct theoretical evidence and technical support can be supplied for the standardized design of the stable control device.

Description

technical field [0001] The invention belongs to the technical field of electric power systems and automation thereof, and relates to a strategy table of a power grid safety and stability control device and a modeling method for strategy search and matching. Background technique [0002] Regional stability control is an important means to ensure the safe and stable operation of modern power systems. The implementation methods of control decision-making are generally divided into three categories: a) offline pre-decision and real-time matching; b online pre-decision and real-time matching; c real-time calculation and real-time control. Regardless of the implementation method, the control strategy table is the basic basis for control, and the stability control device is the main body of strategy implementation. The identification of operation mode, discrimination of disturbance state, and strategy search, matching and implementation are the core contents of the stability contro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 王亮李力陈玉林吕航文继锋陈松林
Owner NR ELECTRIC CO LTD
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