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Modular high-power high-frequency switching power supply

A high-frequency switching power supply and high-power technology, applied in high-efficiency power electronic conversion, output power conversion device, AC power input conversion to DC power output, etc., can solve the problem of expensive equipment

Inactive Publication Date: 2017-05-31
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, a small number of high-frequency switching power supplies are mainly limited to small power capacity levels (below 2000A), while the price of similar foreign equipment is too expensive

Method used

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  • Modular high-power high-frequency switching power supply
  • Modular high-power high-frequency switching power supply
  • Modular high-power high-frequency switching power supply

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and example the patent of the present invention is described further.

[0022] The modular high-power high-frequency switching power supply is mainly used in the field of high-power high-frequency switching power supply with low voltage and high current.

[0023] Such as figure 1 As shown, a modular high-power high-frequency switching power supply is characterized in that it includes a three-phase AC EMI filter (1), a rectification filter circuit (2), a high-voltage DC bus (intermediate link) (3), and a switching converter module (4), voltage and current detection unit (5), output DC bus (6), cabinet bus (7), master control unit (8), in which the master control unit (8) is also connected through the field bus interface outside the cabinet (PROFIBUS ) (9) Connect with external equipment.

[0024] Such as figure 2 As shown, the switching converter module (4) is finally rectified and output as DC through the DC / AC link thr...

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Abstract

The invention provides a modular high-power high-frequency switching power supply. The modular high-power high-frequency switching power supply is characterized by comprising a three-phase alternating-current EMI (Electro-Magnetic Interference) filter (1), a rectification filter circuit (2), a high-voltage direct-current bus (intermediate link) (3), a switch converter module (4), a voltage and current detection unit (5), an output direct-current bust (6), an inner-cabinet bus (7) and a main control unit (8), wherein the main control unit (8) is connected with external equipment through an outer-cabinet field bus interface (PROFIBUS) (9). The modular high-power high-frequency switching power supply has the characteristics of maintainability, replaceability and production uniformity; the device can be manufactured into a modular switching power supply device; a plurality of devices can be connected in parallel with different quantities of standard switch converter modules to meet different power demands, and different field processes.

Description

technical field [0001] The patent of the invention belongs to the field of high-power high-frequency switching power supply with low voltage and high current in power electronics technology. DSP (Digital Signal Processing) is used as the control core to control the high-power high-frequency switching power supply of the entire circuit. Background technique [0002] The existing high-power power supplies at home and abroad are mainly divided into two categories: (1) power frequency rectifier power supplies, (2) switching power supplies. [0003] Power frequency rectifier power supply: large in size, bulky and high in energy consumption. Since most of them adopt dual anti-star thyristor full-bridge phase-shift rectification topology, the harmonic content is high, which will cause large electromagnetic interference to the power grid, and the power factor is also low. relatively low. [0004] Switching power supply: high power density, good dynamic performance, strong adaptabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/217H02M3/335
CPCH02M3/33569H02M7/2173H02M1/0012H02M1/0058Y02B70/10
Inventor 胡山李猛陈志亮
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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