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Stability control device action analog simulation method based on structured model driving

A stable control device and model-driven technology, applied in simulators, general control systems, control/regulation systems, etc., can solve problems such as difficulty in generalization, lack of industry unified standards, and poor product versatility.

Inactive Publication Date: 2010-11-10
STATE GRID ELECTRIC POWER RES INST +1
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Problems solved by technology

[0003] Due to the actual situation of power grids at all levels, there are large differences in the requirements for safety and stability control, and the factors and control objects related to safety and stability control are complex. Therefore, the stability control device is a relatively complex and difficult to achieve generalization in the automatic control device of the power system.
At present, the device mainly has the following problems: First, there is a lack of uniform standards in the industry, and the product has poor versatility. The Twelfth Academic Annual Conference, 2006.); second, the formulation of the offline strategy table is based on offline typical mode data, which cannot cover various operating conditions of the real-time power grid, and the completeness of the strategy cannot be guaranteed; third, to ensure safety, The offline strategy is relatively conservative, which affects the economic operation of the system

Method used

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  • Stability control device action analog simulation method based on structured model driving
  • Stability control device action analog simulation method based on structured model driving
  • Stability control device action analog simulation method based on structured model driving

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Embodiment Construction

[0065] The present invention will be described in further detail below with reference to the accompanying tables and in conjunction with examples. However, the invention is not limited to the examples given.

[0066] In this example, Table 1 is the stability control strategy table obtained from step 1), and the table contains two faults (Flt1, Flt2). Each fault examines two operating modes, namely Opmode1 and Opmode2. In each operation mode, two power flow levels (Pf1, Pf2) need to be considered, and corresponding control strategies should be adopted for each power flow level. Assuming that the expected fault Flt is a three-phase permanent fault of element 1, the corresponding fault code is 0101 (the equipment code is 01, and the fault type code is 01); under the current grid operation mode, elements 1, 2, and 3 are all put into operation, then The mode definition formula shows that the current matching operation mode is Opmode1; the transmission power flow of components 1, ...

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Abstract

The invention discloses a stability control device action analog simulation method based on structured model driving, which comprises the following steps of: structuring the model of a stability control device, organizing stability control strategies into (fault, operation mode, tidal current level and control strategies) a quaternary list structural form (wherein the operation mode specifically refers to a set start-stop mode and a line connecting mode), decomposing the control strategy into five basic elements including a control mode, a controlled quantity, a controlled quantity implementation principle, a controlled object queue and restriction, and summarizing four basic control strategy structured models including a direct type, a sequence type, a circular type and an optimum type. The control strategy is rapidly identified in the structured stability control strategies by a simulation program according to expected faults and the actual running mode of an electric network, and the strategy is added into the computation scene of a simulation example. The invention has the advantage of applicability to the simulation of different off-line stability control strategies.

Description

technical field [0001] The invention belongs to the technical field of electric power system and automation thereof, and more precisely relates to an action simulation method of a stability control device driven by a structured model. Background technique [0002] As an important technical equipment to ensure the safe and stable operation of the power system, the stability control device has been widely used in all levels of power grids. When the power grid fails, the stability control device quickly matches and executes the control strategy according to the real-time operating conditions of the power grid and the offline strategy table. Therefore, when analyzing and calculating the safety and stability of the power system, it is necessary to consider the model of the stability control device. By simulating the action of the stability control device after the expected failure, on the one hand, the safety of the power grid after the expected failure can be evaluated, and on t...

Claims

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Application Information

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IPC IPC(8): G05B17/00
Inventor 许剑冰徐泰山方勇杰汪马翔刘韶峰沈凤杰余文杰徐海波
Owner STATE GRID ELECTRIC POWER RES INST
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