Automatic adjusting and controlling device for electricity energy quality

A control device and power quality technology, applied in harmonic reduction devices, reactive power adjustment/elimination/compensation, AC network to reduce harmonics/ripples, etc., can solve problems such as low power factor and achieve filtering Harmonics, elimination of voltage fluctuations and flicker, the effect of a reasonable structure

Inactive Publication Date: 2011-08-10
芮骏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a method that can correct the low power factor, harmonics, three-

Method used

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  • Automatic adjusting and controlling device for electricity energy quality
  • Automatic adjusting and controlling device for electricity energy quality
  • Automatic adjusting and controlling device for electricity energy quality

Examples

Experimental program
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Embodiment Construction

[0019] see figure 1 with figure 2 , The power quality automatic control device is composed of a measurement and control circuit, a DC excitation controllable saturable reactor 9 connected in parallel, a capacitor compensation component 11, a voltage balance adjustment component 18 and a harmonic filter channel 24. in,

[0020] The iron chip of the DC excitation controllable saturable reactor 9 is composed of a narrow side and three broad sides of equal width, and the width of the narrow side is 0.33 times of the width of the wide side. The coil of the DC excitation controllable saturable reactor 9 is composed of a reactance coil 91 and an excitation coil 92, wherein the reactance coil 91 is composed of six windings with an angle of 60 degrees between the planes of the iron cores 93, and each winding is placed on On the wide side of the frame-shaped iron chip, two adjacent windings are connected in series to form three single-phase coils, and the three single-phase coils are...

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PUM

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Abstract

The invention discloses an automatic adjusting and controlling device for electricity energy quality, which consists of a measuring and controlling circuit as well as a direct current excitation controllable saturable reactor (9), a harmonic filter channel (24), a capacitor compensating element (11) and a voltage balance adjusting part (18) connected in parallel, wherein a reactance coil (91) of the direct current excitation controllable saturable reactor (9) is connected in parallel with the harmonic filter channel (24) and an excitation coil (92) of the direct current excitation controllable saturable reactor is electrically connected with the output end of a controllable direct current excitation power supply (6); the output end of the measuring and controlling circuit is respectively and electrically connected with the control ends of the controllable direct current excitation power supply (6), a first switching part (15) and a second switching part (21), and is used for respectively controlling the switching of the exciting current of the excitation coil (92), the capacitor compensating element (11) and the voltage balance adjusting part (18) according to the detected variable quantity. The automatic adjusting and controlling device for electricity energy quality can automatically adjust the power factors of a power grid, implement reactive compensation, eliminate harmonic waves and three phase imbalance, and can be broadly applied for guaranteeing the electricity energy quality.

Description

technical field [0001] The invention relates to a control device, in particular to an automatic control device for power quality. Background technique [0002] Electric energy is the most important form of energy today. With the rapid development of my country's economy and technology and the rapid improvement of people's living standards, various complex, sophisticated, and power-quality-sensitive electrical equipment continue to popularize. Higher requirements have been put forward for the safety, stability and power quality of the system. [0003] With the advancement of science, the load structure of modern power systems has undergone major changes, such as the rapid development of loads such as semiconductor rectifiers, thyristor voltage regulators and frequency conversion adjustment devices, steelmaking electric arc furnaces, electrified railways, and household appliances. Due to its non-linearity, impact and unbalanced power consumption characteristics, the voltage wa...

Claims

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Application Information

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IPC IPC(8): H02J3/01H02J3/18
CPCY02E40/30Y02E40/40
Inventor 芮骏陈文根
Owner 芮骏
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