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Control method and system for electronic load regulator of generator

A technology of electronic load and control method, applied in the direction of reducing/preventing power oscillation, etc., can solve the problems of three-phase imbalance, disadvantage of generator, and reducing the safety of generator use.

Active Publication Date: 2016-01-20
HNAC TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large capacity of the unit, the three-phase imbalance will occur due to the change of the load, which is not good for the generator and reduces the safety of the generator.

Method used

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  • Control method and system for electronic load regulator of generator
  • Control method and system for electronic load regulator of generator
  • Control method and system for electronic load regulator of generator

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Embodiment Construction

[0033] The invention relates to a control method of an electronic load regulator of a generator, which is suitable for the control of the electronic load regulator under the single-unit isolated network operation of the generator. like figure 1 As shown, the generator electronic load regulator control method includes the following steps:

[0034] Step S110: Acquiring measured frequencies and control parameters of multiple virtual water tanks in real time.

[0035] The multiple virtual water tanks are obtained by dividing the load resistance tanks, and the frequency of each virtual water tank is collected in real time, and the control parameters of the virtual water tanks refer to the frequency of use of a given voltage. The function of the load resistance box is to dissipate heat, to ensure that the excess electric energy is consumed through the conversion of heat energy, so as to achieve load balance. There are two loads in the load water resistance box of the generator. If...

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Abstract

The invention relates to a control method and a system for an electronic load regulator of a generator. The method includes: measured frequencies and control parameters of a plurality of virtual water tanks are respectively obtained in real time, deviation values of the virtual water tanks are calculated and obtained according to the measured frequencies and a received control frequency, and control steps of the virtual water tanks are calculated and obtained according to the deviation values and the control parameters; the total control step of a load water-resistance tank is calculated according to the control steps of the virtual water tanks, the silicon controlled rectifier control step of the electronic load regulator is calculated, obtained, and outputted, and frequency stable regulation of three-phase current is realized; the current value and the frequency value of the three-phase current of the generator are obtained, a given value of the three-phase current of the generator is calculated, obtained, ad outputted according to the current value and the frequency value of the three-phase current, and the balance of the three-phase current of the generator is controlled. According to the method and the system, the electronic load regulator is controlled via frequency balance and current balance, three-phase imbalance due to load change is prevented, and the usage security of the generator is improved.

Description

technical field [0001] The invention relates to the technical field of generator sets, in particular to a control method and system for a generator electronic load regulator. Background technique [0002] With the rapid development of power grid technology, the overhead lines in some remote places transmit electricity from the power grid, which is very costly, and even the construction of elevated lines in these places is technically difficult and risky. Therefore, local water resources can be used for hydro turbine power generation, electronic loads can be used to adjust frequency, and a control device for frequency adjustment and harmonic control can be invented to solve the quality of electricity used by nearby residents. [0003] The electronic load regulator is used to maintain the constant frequency of the generating set, and switch the guide vanes through the electric operating mechanism to realize the turning on and off of the generating set. However, due to the lar...

Claims

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Application Information

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IPC IPC(8): H02J3/24
Inventor 汪晓兵胡清波苗洪雷邓东红龙宇平张志峰
Owner HNAC TECH
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