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Hybrid digital-analogue simulation system for static var generator and simulation method for hybrid digital-analogue simulation system

A static reactive power generation, digital-analog hybrid technology, applied in the field of power electronics, can solve problems such as inability to achieve teaching effects, complex topology, and achieve good demonstration teaching effects and flexible and diverse teaching modes.

Inactive Publication Date: 2015-04-29
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, due to the complex topology of the device, which includes both linear components such as inductors and capacitors, as well as nonlinear switching components, it is not convenient to intuitively express the fundamental wave characteristics, harmonic distortion, The characteristics of electrical performance such as parameter nonlinearity and control and protection cannot achieve the ideal teaching effect

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  • Hybrid digital-analogue simulation system for static var generator and simulation method for hybrid digital-analogue simulation system
  • Hybrid digital-analogue simulation system for static var generator and simulation method for hybrid digital-analogue simulation system
  • Hybrid digital-analogue simulation system for static var generator and simulation method for hybrid digital-analogue simulation system

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Embodiment Construction

[0027] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The invention provides a digital-analog hybrid simulation system of a static var generator, which is used for technical skills training, and the composition diagram of the digital-analog hybrid simulation system is as follows figure 2 As shown, the system includes a low-voltage physical model, a low-voltage physical model control system and a digital simulator; the low-voltage physical model is controlled by the low-voltage physical model control system when the low-voltage physical model is running independently, and is controlled by the digital simulator when performing digital-analog mixed simulation; The low-voltage physical model control system can control the main circuit of the SVG digital simulation model in the digital simulation machine.

[0029] The low-voltage physical model includes an SVG low-voltag...

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Abstract

The invention relates to a hybrid digital-analogue simulation system for a static var generator and a simulation method for the hybrid digital-analogue simulation system. The simulation system is used for technical skill training, and comprises a low-voltage physical model, a low-voltage physical model control system and a digital simulator, wherein the low-voltage physical model is controlled by the low-voltage physical model control system when independently running, and is controlled by the digital simulator during hybrid digital-analogue simulation; a power module in the digital simulator can be controlled by the low-voltage physical model control system. According to the system and the method, the low-voltage physical model can be locally / remotely operated, real-time online simulation researches can also be made, diversified teaching modes can be flexibly adopted, and good demonstration teaching effects can be achieved.

Description

technical field [0001] The invention relates to a simulation system and a simulation method in the field of power electronics, in particular to a digital-analog hybrid simulation system and a simulation method of a static var generator. Background technique [0002] Power electronics technology is a technology that uses power electronic devices to transform and control electric energy. Power electronics technology and devices are widely used in flexible AC transmission, high-voltage DC transmission, AC-DC power transmission and other fields. SVG is one of the main devices of flexible AC power transmission technology. SVG takes the cascaded multilevel converter (Voltage Source Converter, VSC) as the core, and the DC side uses the DC capacitor as the energy storage element, and relies on the VSC to convert the DC side voltage into The output voltage at the same frequency as the grid on the AC side is connected in parallel to the system through an AC reactor or a coupling trans...

Claims

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Application Information

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IPC IPC(8): G05B17/02
Inventor 张艳杰刘汝水夏冰郑壮壮袁蒙李涛
Owner STATE GRID CORP OF CHINA
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