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Digital-analogue hybrid simulation system and simulation method of active electric power filter

A power filter, digital-analog hybrid technology, applied in the field of power electronics, can solve the problems of inconvenient to intuitively express the fundamental wave characteristics of APF, nonlinear harmonic distortion parameters, inability to achieve teaching effects, complex topology, etc. To achieve the effect of flexible and diverse teaching modes and good demonstration teaching effect

Inactive Publication Date: 2015-04-01
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 elements such as inductors and capacitors, as well as nonlinear switching elements, it is not convenient to intuitively express the fundamental wave characteristics, harmonic distortion, and The characteristics of electrical performance such as parameter nonlinearity and control and protection cannot achieve the ideal teaching effect

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  • Digital-analogue hybrid simulation system and simulation method of active electric power filter
  • Digital-analogue hybrid simulation system and simulation method of active electric power filter
  • Digital-analogue hybrid simulation system and simulation method of active electric power filter

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Embodiment Construction

[0029] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] The present invention provides a digital-analog hybrid simulation system for active power filters. The system is used for technical skill training. The composition diagram of the digital-analog hybrid simulation system is as follows figure 2 As shown, it 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 it runs independently, and is controlled by the digital simulator when performing digital-analog hybrid simulation; The physical model control system can control the main circuit of the APF digital simulation model in the digital simulator.

[0031] The low-voltage physical model includes an APF low-voltage physical model and a non-linear model. The non-linear model includes ...

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Abstract

The invention discloses a digital-analogue hybrid simulation system and simulation method of an active electric power filter. The simulation system is used for technical skill training, and the system comprises a low-pressure physical model, a low-pressure physical model control system and a digital simulator; the low-pressure physical model is controlled by the low-pressure physical model control system during independent running, and is controlled by the digital simulator when during digital-analogue hybrid simulation; the low-pressure physical model control system can control a power module in the digital simulator. The system and method disclosed by the invention can perform local / remote operation and can perform real-time online simulation research on the low-pressure physical model, the teaching mode is flexible and variable, and an attractive demonstration teaching effect is realized.

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 an active power filter. Background technique [0002] Power electronic technology is a technology that uses power electronic devices to transform and control electrical energy. Power electronic technology and devices are widely used in flexible AC power transmission, high voltage DC power transmission, AC and DC power transmission and other fields. [0003] With the development of power electronic technology, users have higher and higher requirements for power quality. On the premise of ensuring the reliability of power supply, harmonic suppression and reactive power compensation constitute the core tasks of today's power quality control. At present, an important trend of harmonic suppression is the use of active power filters. Active power filter (APF) adopts the most a...

Claims

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Application Information

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IPC IPC(8): G09B23/18
CPCG09B23/181
Inventor 张艳杰刘汝水李涛郑壮壮袁蒙夏冰
Owner STATE GRID CORP OF CHINA
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