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Excitation auxiliary device of generator and excitation auxiliary power control method

A technology of auxiliary power supply and auxiliary device, which is applied in the direction of controlling the generator through the change of the magnetic field, which can solve the problems of high construction cost, bulky exciter, and heavy weight, and achieve the effect of reduced volume, low manufacturing cost, and light weight

Inactive Publication Date: 2017-11-21
KUTAI ELECTRONICS IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, separately excited exciters are bulky, heavy, and costly to build.

Method used

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  • Excitation auxiliary device of generator and excitation auxiliary power control method
  • Excitation auxiliary device of generator and excitation auxiliary power control method
  • Excitation auxiliary device of generator and excitation auxiliary power control method

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Embodiment Construction

[0057] refer to figure 1 As shown, the excitation auxiliary device 100 of the present invention is applied to a generator 400 having a storage battery 200 and an automatic voltage regulator 300 , and is connected between the storage battery 200 and the automatic voltage regulator 300 . The excitation auxiliary device 100 uses the DC power of the battery 200 , and when the voltage of the output power of the generator 400 drops to a preset condition, the excitation auxiliary device 100 can output an auxiliary power VAUX to the automatic voltage regulator 300 . The storage battery 200 can be an additional storage battery, or an original storage battery in the generator system.

[0058] Such as figure 2 As shown, the excitation auxiliary device 100 of the present invention mainly includes: a processor 10, a battery voltage receiving circuit 20, a generator output monitoring circuit 30, a setting circuit 40, an auxiliary power generation circuit 50 and an auxiliary power measure...

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Abstract

The present invention is an excitation auxiliary device of a generator and a control method thereof, which is applied to a generator connected with an automatic voltage regulator (AVR), and the excitation auxiliary device is arranged between a storage battery and the automatic voltage regulator; wherein , the excitation auxiliary device continuously monitors the voltage state of the output power of the generator, and when the voltage of the output power drops to a preset level of fluctuation instantaneously, the excitation auxiliary device converts and boosts the DC power of the battery into an AC form Auxiliary power supply, and output the auxiliary power supply to the automatic voltage regulator, so that the automatic voltage regulator outputs excitation energy to the generator, so that the generator can obtain the additional excitation energy to increase the output power of the generator.

Description

technical field [0001] The invention relates to an excitation auxiliary device for a generator and a control method for an excitation auxiliary power supply, in particular to a DC power supply that can be converted from a storage battery into an AC auxiliary power supply for excitation of a generator. Background technique [0002] When the generator is in operation, it needs to use an excitation system to establish a magnetic field to make the generator generate AC power. The energy that creates the magnetic field is called the excitation power. According to the supply mode of the excitation power supply, the excitation system can be divided into self-excitation (self-excitation), external excitation (external excitation) or other excitation types. The automatic voltage regulator (AVR) is an important device used to control the excitation system, which can determine whether the output voltage of the generator is stable. [0003] Such as Figure 7 As shown, the self-excited ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/14
Inventor 吕文峰
Owner KUTAI ELECTRONICS IND