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A regenerative braking energy feedback system

An energy feedback and regenerative braking technology, applied in electric braking systems, power management, electric vehicles, etc., can solve the problems of affecting the life of the energy storage unit, large occupation, and high cost

Active Publication Date: 2020-08-11
NINGBO JIANGBEI GOFRONT HERONG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now the subway in most cities is one of the means of transportation for human travel. Due to the frequent braking of the subway, the power amplitude of the regenerative braking energy is large. The traditional energy storage method requires the energy storage unit to have a large power and capacity, resulting in a large volume And the cost increases, and at the same time, too frequent charging and discharging will affect the life of the energy storage unit. In order to solve the above technical problems, the existing technology needs an additional step-up transformer to complete the loopback after the regenerative braking energy is converted. task, but it costs more and takes up more space

Method used

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  • A regenerative braking energy feedback system
  • A regenerative braking energy feedback system
  • A regenerative braking energy feedback system

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Embodiment

[0073] Such as figure 1 , as shown in 2 and 3, a regenerative braking energy feedback system, including the original diode rectification device 1, energy feedback module 2, detection circuit device 3, and control circuit device 4. A group of energy feedback modules 2 is connected in antiparallel to each original group of diode rectifier devices. The energy feedback module 2 is also connected with a detection circuit device 3 , and the detection circuit device 3 is also connected with a control circuit device 4 .

[0074] According to the rectification power supply system three-standard work DC750V / 3MW, DC1500V / 6MW and DC3000V / 9MW, the maximum DC current is 5kA, considering the maximum feedback power is also 9MW, set the number of different groups and the connection method of the device: when DC750V / 3MW When DC1500V / 6MW, two sets of rectifiers are connected in parallel, DC power supply current is 6MW / 1500V=4kA, each set The current is 2kA; when DC3000V / 9MW, 4 sets of rectifier...

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Abstract

The invention discloses a regenerative braking energy feedback system. The system comprises diode rectifiers, energy feedback modules, detection loop devices and control circuit devices, a group of energy feedback modules are connected with a group of diode rectifiers in anti-parallel, the energy feedback modules are connected with the detection loop devices, and the detection loop devices are also connected with the control circuit devices. The system can leave out an additional boost transformer for controlling braking energy, effectively reduce cost, reduce energy waste, and improve environmental protection quality.

Description

technical field [0001] The invention relates to the field of urban rail transit power supply devices, in particular to a regenerative braking energy feedback system. Background technique [0002] Now the subway in most cities is one of the means of transportation for human travel. Due to the frequent braking of the subway, the power amplitude of the regenerative braking energy is large. The traditional energy storage method requires the energy storage unit to have a large power and capacity, resulting in a large volume And the cost increases, and at the same time, too frequent charging and discharging will affect the life of the energy storage unit. In order to solve the above technical problems, the existing technology needs an additional step-up transformer to complete the loopback after the regenerative braking energy is converted. task, but it costs more and takes up more space. [0003] In view of the above-mentioned defects, the creator of the present invention has fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L7/16B60M3/00H02J3/38H02M7/797H02M1/12
CPCB60L7/16B60L2210/40B60M3/00H02J3/38H02M1/126H02M7/797Y02T10/72
Inventor 洪光毛元奇詹娜
Owner NINGBO JIANGBEI GOFRONT HERONG ELECTRIC
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