Coal mining machine traction loop powered by common direct current bus
A bus power supply, DC bus technology, applied in AC motor control, conversion equipment for intermediate conversion to DC conversion, conversion of AC power input to DC power output, etc., can solve the problems of large space occupation, space waste, etc. Electric control costs, reduces the space occupied, and resolves conflicts
Pending Publication Date: 2022-06-03
SHANGHAI TIANDI MINING EQUIP TECH CO LTD +3
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[0026] like Figure 1-4 As shown, the present invention discloses a shearer traction circuit (which can be referred to as a traction circuit for short) powered by a common DC bus, including a traction transformer and a rectification feedback module 1, a DC bus power distribution module 2, an inverter and an inverter connected in sequence. Traction motor two-in-one module 3. The traction transformer and the rectification feedback module include the traction transformer 5 and the traction inverter rectification circuit. The traction transformer and the rectification feedback module are placed in the same cavity of the explosion-proof electric control box, which improves the compactness of the system and saves space. area. The DC bus power distribution module is independently acted by the DC filter part in the traditional traction inverter, and is drawn from the output end of the traction transformer and the rectification feedback module 1 to form a DC power distribution network...
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The invention relates to a coal mining machine traction loop powered by a common direct-current bus, which comprises a traction transformer and rectification feedback module, a direct-current bus power distribution module and an inverter and traction motor two-in-one module which are connected in sequence, and is characterized in that the traction transformer and rectification feedback module comprises a traction transformer and traction frequency converter rectification circuit; the traction transformer and the rectification feedback module are arranged in a cavity of the explosion-proof electric cabinet, the direct-current bus power distribution module is independently used by a direct-current filtering part in a traditional traction frequency converter, and the direct-current bus power distribution module is arranged in a power distribution cavity of the explosion-proof electric cabinet. And the inverter and traction motor two-in-one module is arranged outside the explosion-proof electric cabinet. The space occupied area is reduced, the compactness of the system structure is improved, and the energy-saving effect of the system is improved.
Description
technical field [0001] The invention relates to a traction circuit layout structure of a shearer, in particular to a traditional traction transformer and a traditional shearer traction inverter rectifier feedback module designed integrally and placed in the same cavity of a flameproof electric control box, The middle DC part of the traditional traction inverter is separately set as the DC power supply busbar, and the traditional traction inverter inverter circuit and the shearer traction motor are integrated and arranged in the original position of the traditional shearer traction motor. Background technique [0002] The traditional shearer traction circuit layout is to separate the traction transformer and the traction inverter into two cavities and isolate them from the traction motor. waste. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a shearer traction circuit powered by a common DC bus, which can improve the compactness of the...
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Login to View More IPC IPC(8): H02P27/06H02M5/40H02M7/219H02M7/5387H02M1/14
CPCH02P27/06H02M5/40H02M7/219H02M7/5387H02M1/14Y02T10/72
Inventor 刘博庄德玉邱锦波刘云龙郭岱
Owner SHANGHAI TIANDI MINING EQUIP TECH CO LTD