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Voltage stabilization equipment capable of saving electricity, optimizing electric energy and automatically adjusting voltage for system

A technology of automatic adjustment and electric energy, applied in the direction of AC network voltage adjustment, etc., can solve the problems of increasing quantity and complicated control operation

Inactive Publication Date: 2013-12-25
SHANGHAI NINGBANG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the shunt winding of the current voltage stabilizing device, since there are many single winding devices on the secondary side, the number of power electronic power devices is increased in order to replace the winding, thus complicating the control operation

Method used

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  • Voltage stabilization equipment capable of saving electricity, optimizing electric energy and automatically adjusting voltage for system
  • Voltage stabilization equipment capable of saving electricity, optimizing electric energy and automatically adjusting voltage for system
  • Voltage stabilization equipment capable of saving electricity, optimizing electric energy and automatically adjusting voltage for system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a system power-saving optimization electric energy automatic adjustment voltage stabilizing device, which includes a phase line input terminal, a phase line output terminal and a neutral line terminal, and is characterized in that it also includes a series winding, a shunt winding, The first group of power electronic power devices, the second group of power electronic power devices, a reactor, the third group of power electronic power devices and a parallel winding. Phase A is typical, and Phase B and C are the same as Phase A.

[0041] One end of the series winding is a phase line input end, which is connected to the head end of the parallel winding, and the other end is a phase line output end;

[0042] The shunt winding and the series winding share an iron core, the shunt winding includes a first end connector, a second end connector and several taps, and the first group of power electronic power devices includes two first power electroni...

Embodiment 2

[0050] Such as figure 1 As shown, an embodiment of the present invention provides a system power-saving optimization electric energy automatic regulation voltage stabilization device, in this embodiment, the neutral line (N) output terminal 22 is actually connected to the neutral line (N) input connector 12, here The input and output terminals of the neutral line (N) are both the input and output terminals of the neutral line, and the input terminals 10 of the phase line (A) are respectively connected to the first end of the parallel winding and to the input end of the series winding (A1-1), and the series winding A1 -1 is connected to the output terminal 20 of the a-phase line.

[0051] A series winding A1 - 1 is inserted between the input terminal 10 of the phase line (A) and the output terminal 20 of the phase line a. The shunt winding A1-2 and the series winding A1-1 share an iron core A1-3, and multiple taps can be reserved on the shunt winding A1-2 as required, and 4 ta...

Embodiment 3

[0068] Such as figure 2 As shown, a system power-saving optimization electric energy automatic adjustment voltage stabilization equipment group, which is used in a three-phase four-wire power supply system, wherein the three-phase four-wire power supply system includes A-phase lines, B-phase lines, The C-phase line and the neutral line N are characterized in that they include A-phase power-saving optimized power automatic adjustment voltage stabilization equipment, B-phase power-saving optimized power automatic adjustment voltage stabilization equipment, and C-phase power-saving optimized power automatic adjustment voltage stabilization equipment equipment,

[0069] Wherein the A-phase line is connected to the A-phase line input end of the A-phase power-saving optimization electric energy automatic voltage regulation device, and the B-phase line is connected to the B-phase power-saving optimization electric energy automatic regulation voltage stabilization device The B-phase...

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Abstract

The invention relates to a voltage stabilization equipment capable of saving electricity, optimizing electric energy and automatically adjusting voltage for a system. The voltage stabilization equipment comprises a phase line input terminal, a phase line output terminal and a zero line terminal. The voltage stabilization equipment further comprises a series winding, a shunt winding, a first set of electric / electronic power device, a second set of electric / electronic power device, an electric reactor, a third set of electric / electronic power device and a parallel winding; according to the equipment, the voltage value of the phase line output terminal is controlled by controlling the on / off of the first set of electric / electronic power device and the second set of electric / electronic power device as well as the current direction of the third set of electric / electronic power device. The voltage stabilization equipment can be used for stabilizing and compensating voltage and cannot generate large impact current and impact voltage. In addition, the volume and the weight of the voltage stabilization equipment provided by the invention are less than those of the existing device of the same specification. When the stabilized voltage is output, the loss of the existing voltage stabilization device is increased by 4% or so, but the voltage stabilization equipment has the effects that the loss is not increased, the electric energy can be saved by 6% or so and a majority of ultraharmonics can be filtered out at the same time so as to improve the three-phase imbalance, thereby optimizing the quality of the electric energy.

Description

technical field [0001] The invention provides a power-saving voltage stabilizing device, in particular a system power-saving optimization electric energy automatic regulation voltage stabilizing device. Background technique [0002] Existing voltage stabilizing devices, voltage compensating devices or voltage control devices are composed of series windings and shunt windings, and are wound by the same iron core. A transformer with multiple single windings is equipped with taps in the shunt windings. , can switch any voltage through power electronic power devices and relays, and then achieve voltage transformation. Examples like this are well known in current voltage stabilizing devices. In the power consumption structure, when the tap is cut off, a large amount of inrush current will flow out due to the release of residual electromagnetic energy, and a large surge voltage will also be generated at the moment when the tap is connected. In order to prevent the excessive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/12
Inventor 朱克祥朱晟杰朱振朱晓云
Owner SHANGHAI NINGBANG ELECTRIC
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