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Switching value control method for high-voltage frequency converter and control plug-in thereof

A high-voltage frequency converter and switching value control technology, which is applied in the field of measurement and control, can solve problems such as strong interference ability is not strong, and achieve the effects of isolating high-voltage interference, improving anti-interference ability, and high reliability

Active Publication Date: 2011-07-13
ZHUZHOU NAT ENG RES CENT OF CONVERTERS
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiency that the existing high-voltage frequency converter is not strong enough to resist the strong interference of the use environment, and to provide a high-voltage frequency converter switching value control method and control plug-in with better anti-environmental interference

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  • Switching value control method for high-voltage frequency converter and control plug-in thereof
  • Switching value control method for high-voltage frequency converter and control plug-in thereof
  • Switching value control method for high-voltage frequency converter and control plug-in thereof

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] as attached figure 1 As shown in the figure, a high-voltage frequency converter switching value control method, the high-voltage frequency converter switching value input measurement circuit 1 is set at the input end of the high-voltage frequency converter, the high-voltage frequency converter input switching value signal is collected, and the high-voltage frequency converter input switching value signal is passed through the signal Amplitude reduction-rectification-filtering-isolation processing is connected to logic controller 2; logic controller 2 sends out control instructions after operation processing, and the switching value output control circuit undergoes level conversion-isolation-filtering-relay isolation processing to control Turns on and off the external signal. In the switch value control method of the high-voltage frequency conver...

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Abstract

The invention relates to a switching value control method for a high-voltage frequency converter and a controller thereof; a switching value input measurement circuit of the high-voltage frequency converter is arranged at the input end of the high-voltage frequency converter to collect an input switch value signal of the high-voltage frequency converter, and the input switch value signal of the high-voltage frequency converter is accessed to a logical controller through signal amplitude decreasing, rectifying, filtering and isolating treatment; and the logic controller emits a control instruction after operation processing to control switch-on and switch-off of an external signal after being processed through the switching value input measurement circuit about potential conversion, isolating, filtering and relay isolation. In the switching value control method for the high-voltage frequency converter, an output switching value self-checking part is arranged; the output switching valueself-checking part performs amplitude decreasing and isolation to the output control switching value signal to feed in a logic processor to output the switching value state to feedback the output state to the logic processor through a feedback circuit, so as to realize switching value self-checking; moreover, the logic processor is communicated with a master controller of the high-voltage frequency converter through an optical fiber.

Description

technical field [0001] The present invention relates to a control method and structure of electrical components, in particular to a switching value control method and a control plug-in of a high-voltage frequency converter, and relates to a high-voltage frequency converter starting, stopping, resetting, emergency stop, etc. in the frequency converter. The measurement and control technology of key switch signals belongs to the field of measurement and control technology. It is mainly used in high-voltage frequency converters. Background technique [0002] At present, the whole world is troubled by energy shortage, and the energy situation in my country is particularly severe. With the rapid development of China's economy, energy has become a bottleneck restricting economic growth, saving energy and reducing consumption has become a serious concern of the country and enterprises. The high-voltage frequency converter with ideal energy-saving effect and speed regulation perfor...

Claims

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Application Information

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IPC IPC(8): G05B19/05
Inventor 蓝德劭罗仁俊王翠玲李毅鑫钟强
Owner ZHUZHOU NAT ENG RES CENT OF CONVERTERS
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