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User power supply voltage and load current control device working according to electric network requirements and user need

A technology of power supply voltage and load current, applied in the direction of circuit devices, harmonic reduction devices, electrical components, etc., can solve the problems of slow processing speed, bad current limit degree, etc., and achieve the improvement of power quality, reduce burden and pollution, and the scope of application wide effect

Inactive Publication Date: 2010-09-15
牛世斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These treatments are processed after testing, analysis, and calculation. The processing speed is relatively slow. In terms of voltage control, the target is only the rated state, and in terms of current control, the goal is to limit the degree of bad current.

Method used

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  • User power supply voltage and load current control device working according to electric network requirements and user need
  • User power supply voltage and load current control device working according to electric network requirements and user need
  • User power supply voltage and load current control device working according to electric network requirements and user need

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Embodiment Construction

[0027] Depend on Figure 1-7 As can be seen from the shown embodiment, it is composed of a user supply voltage management unit and a load current management unit; the user supply voltage management unit is composed of a voltage transformer, a standard voltage generator, a first comparator, a first amplifier, a reverse coupling The transformer is composed; the primary of the voltage transformer and the grid voltage U in connected in parallel, the secondary of the voltage transformer is connected to one input terminal of the first comparator, the output terminal of the standard voltage generator is connected to the other input terminal of the first comparator, and the first comparator The output end of the first amplifier is connected to the primary of the reverse coupling transformer, and the secondary of the reverse coupling transformer is connected to the grid voltage U in in series;

[0028] The load current management unit is composed of a current transformer, a first cur...

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PUM

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Abstract

The invention relates to a user power supply voltage and load current control device working according to electric network requirements and user need, comprising a user power supply voltage control unit and a load current control unit, wherein the user power supply voltage control unit comprises a voltage transformator, a standard voltage generator, a first comparator, a first amplifier and a backcoupling transformer; and the load current control unit comprises a current transformator, a first current / voltage converter, a standard current generator, a second current / voltage converter, a second comparator, a fixing amplifier and a first coupling transformer. The user power supply voltage and load current control device is green and environment-friendly and has good quality, high efficiency, high speed, and the like, and voltage and current controlled by the user power supply voltage and load current control device can greatly increase the power quality of power supply and power utilization.

Description

technical field [0001] The invention relates to a user power supply voltage and load current control device that controls the user's power supply voltage and load current according to the requirements of the power grid and the user's needs, which belongs to AC power supply equipment. Background technique [0002] The voltage and current have a large deviation between the actual operation of the power grid and some predetermined indicators, so it needs to be treated. At present, the control methods for voltage and current are single, not closely related to each other, and are completed by different means. For example, a voltage stabilizer is generally used to control the effective value of the voltage, a filter is generally used to control the voltage waveform, a current stabilizer is generally used to control the effective value of the current, a reactive current compensator is generally used to control the reactive current, and a harmonic current is generally used to contro...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/01H02J3/18
CPCY02E40/30Y02E40/40
Inventor 牛世斌
Owner 牛世斌
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