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Intelligent reactive power compensation and electric energy parameter display integrated control device

A technology of power compensation and parameter display, applied in the direction of reactive power adjustment/elimination/compensation, reactive power compensation, electrical components, etc. The effect of power supply quality, improving power factor and reducing line loss

Inactive Publication Date: 2016-03-30
重庆瑞升康博电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the control link, it is basically impossible to meet the requirements of phase separation, classification, fast and intelligent tracking compensation

Method used

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  • Intelligent reactive power compensation and electric energy parameter display integrated control device
  • Intelligent reactive power compensation and electric energy parameter display integrated control device
  • Intelligent reactive power compensation and electric energy parameter display integrated control device

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Embodiment Construction

[0029] specific implementation plan

[0030] A detailed description will be made below in conjunction with the accompanying drawings. exist figure 1 Medium three-phase power transformer ⑴ The output of the three-phase current transformer (2) is transformed and output 0-5A to the current detection (4) and voltage detection (5) in the detection unit. The current detection uses a TA12 current sensor with a transformation ratio of 1000:1. The current is 0-5mA; the voltage detection adopts a resistor divider network; the detected three-phase current and voltage signals are sent to the A / D port of the power detection chip AT7220 (6). 6 channels of 16-bit A / D converters are integrated inside the ATT7022 chip. The linear error of the effective value of the current channel is less than 0.1% within the range of 2mV to 1V; the linear error of the effective value of the voltage channel is less than 0.1% within the range of 10mV to 1V; The voltage ranges from 0.2V to 0.6V, (the voltage ...

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Abstract

The invention discloses an intelligent reactive power compensation and electric energy parameter display integrated control device, and the device comprises a microprocessor unit, a signal collection unit, an electric energy parameter analysis metering unit, a power supply unit, a display unit, a man-machine conversation unit, a storage unit, an alarm unit, a temperature detection unit, a communication unit, and a drive output unit. The device integrates power grid monitoring and reactive power compensation, can compensate for the reactive loss of a power grid, improves the power factor, reduces the line loss, and improves the loading capability and power supply quality of the power grid. Meanwhile, the method also can monitor three-phase voltage and current and the power factor of the power grid in real time, can complete the integrated management of the monitoring, analysis and processing, report output and remote operation of a whole low-voltage power distribution line, and provides the first-hand reliable data for the scientific management of the low-voltage power distribution line.

Description

technical field [0001] The invention belongs to the field of power system power quality control technology and energy saving and environmental protection technology, and in particular relates to an intelligent three-phase low-voltage AC dynamic reactive power compensation and three-phase power parameter display comprehensive control method and device. Background technique [0002] With the development of the economy and the improvement of people's living standards, all walks of life have put forward higher requirements for the reliability and quality of power supply. Since the distribution network is at the end of the power grid, most of the users are low-voltage users, and the power factor of many electrical appliances is very low, and there is no compensation device, which brings a large power burden and extra line loss to the power grid. In order to maintain the stability of the power system , To ensure power quality and safe operation, it is very necessary to perform in-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18H02B15/00
CPCY02E40/30
Inventor 许祝陈军王远平龙永杰甘凯
Owner 重庆瑞升康博电气有限公司
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