Transformer distribution parameter based LCC resonant type electrostatic precipitator high-frequency high-voltage power supply

A high-frequency high-voltage power supply and distributed parameter technology, applied in the direction of high-efficiency power electronic conversion, electrical components, output power conversion devices, etc., can solve the problems of power system performance impact, easily damaged power devices, etc., to improve power supply efficiency, easy The effect of high output voltage and transmission efficiency

Inactive Publication Date: 2016-07-27
ZHENJIANG TIANLI TRANSFORMER
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  • Description
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Problems solved by technology

[0003] The high-frequency transformer has a lot of turns on the secondary side, and the turn ratio of the secondary side to the primary side is very large, so it presents large parasitic parameters, such as lea

Method used

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  • Transformer distribution parameter based LCC resonant type electrostatic precipitator high-frequency high-voltage power supply
  • Transformer distribution parameter based LCC resonant type electrostatic precipitator high-frequency high-voltage power supply
  • Transformer distribution parameter based LCC resonant type electrostatic precipitator high-frequency high-voltage power supply

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Embodiment Construction

[0030] Introduce the present invention below in conjunction with accompanying drawing.

[0031] Such as figure 1 Shown: An LCC resonant electrostatic precipitator high-frequency high-voltage power supply based on transformer distribution parameters, including a three-phase rectifier bridge connected in sequence, an input filter capacitor, a full-bridge inverter circuit, an LCC series-parallel resonant circuit, a high-frequency step-up transformer and a high-voltage Silicon stack rectifier bridge, the three-phase rectifier bridge is connected to the three-phase AC, and the high-voltage silicon stack rectifier bridge is connected to the load; the three-phase rectifier bridge is composed of six rectifier diodes, which rectify the input three-phase AC into a DC voltage signal containing clutter; The input filter capacitor filters the voltage output by the three-phase rectifier bridge and then outputs smooth small pulsating direct current, which is input to the next link; the full-...

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Abstract

The invention discloses a transformer distribution parameter based LCC resonant type electrostatic precipitator high-frequency high-voltage power supply. The power supply comprises a three-phase rectifier bridge, an input filter capacitor, a full-bridge inversion circuit, an LCC serial-parallel resonant circuit, a high-frequency boosting transformer and a high-voltage silicon stack rectifier bridge which are connected in sequence; the three-phase rectifier bridge is electrically connected with three-phase alternating current; and the high-voltage silicon stack rectifier bridge is connected with a load. According to the power supply, the influence on a circuit from the high-frequency transformer distribution parameters is taken into full consideration; the LCC serial-parallel resonant circuit is designed by a fundamental wave analyzing method; the switch-on and switch-off of the zero voltage and zero current of a switch tube can be realized, so that the power switching tube is protected, the EMI noise is lowered, the switch loss is reduced, the switch frequency is improved, and the size of the power supply is reduced; meanwhile, the system is subjected to intermittent power supply control, so that sparks and back corona are effectively prevented; and in addition, the power supply is low in switch loss, relatively smaller in size, low in electromagnetic interference, and high in transmission efficiency.

Description

Technical field: [0001] The invention relates to an LCC resonant electrostatic dust removal high-frequency and high-voltage power supply based on transformer distribution parameters. Background technique: [0002] Electrostatic precipitator (ESP) is to use the principle of electrostatic adsorption dust to remove dust. It has high dust removal efficiency, wide range of dust particles, stable operation and high reliability. It has become an advanced dust removal method widely used in industrial production. But how to improve the output efficiency of the power supply is still the focus of power supply design. [0003] The high-frequency transformer has a lot of turns on the secondary side, and the turn ratio of the secondary side to the primary side is very large, so it presents large parasitic parameters, such as leakage inductance and winding capacitance, which will generate peak voltage and interference in the circuit and be easily damaged Power devices have a great influen...

Claims

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Application Information

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IPC IPC(8): H02M5/458H02M1/44
CPCH02M1/44H02M5/458H02M1/0054Y02B70/10
Inventor 曾庆军魏月申兆丰陈峰陶守林
Owner ZHENJIANG TIANLI TRANSFORMER
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