Urban rail train vehicle-mounted energy storage system control method based on power-time curve
An urban rail train, time curve technology, applied in vehicle energy storage, electric braking system, battery/fuel cell control device, etc., can solve the problem of low utilization rate of vehicle hybrid energy storage device, reduced braking power, environmental problems Temperature rise and other problems, to achieve the effect of reducing power shock, reducing heat dissipation, and absorbing power
An urban rail train, time curve technology, applied in vehicle energy storage, electric braking system, battery/fuel cell control device, etc., can solve the problem of low utilization rate of vehicle hybrid energy storage device, reduced braking power, environmental problems Temperature rise and other problems, to achieve the effect of reducing power shock, reducing heat dissipation, and absorbing power
CN110588358AActive Publication Date: 2019-12-20SHENZHEN LOTUT INNOVATION DESIGN CO LTD
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[0028] A control method for an on-board energy storage system of an urban rail train based on a power-time curve. The on-board energy storage system of an urban rail train includes a traction motor 1, a four-quadrant inverter 2, two bidirectional DC-DC converters 3, and a control Module 4, storage battery 5, supercapacitor 6, resistive energy consumption device 7 and catenary 8;
[0029] The input end of the traction motor 1 is connected to the three-phase connection end of the four-quadrant inverter 2; the DC end of the four-quadrant inverter 2 is connected to the catenary 8, and at the same time, the DC end of the four-quadrant inverter 2 passes through the first A bidirectional DC-DC converter 3 is connected to the storage battery 5. At the same time, the DC terminal of the four-quadrant inverter 2 is connected to the supercapacitor 6 through the second bidirectional DC-DC converter 3. At the same time, the DC terminal of the four-quadrant inverter 2 The terminal is connect...
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The invention provides an urban rail train vehicle-mounted energy storage system control method based on power-time curve. The urban rail train vehicle-mounted energy storage system comprises a traction motor, a four-quadrant inverter, two bidirectional DC-DC converters, a control module, a storage battery, a super capacitor, a resistance energy dissipation device and a catenary; in the control method, the double-cut-off frequency is adopted to control the charging action of the storage battery and the super capacitor. The urban rail train vehicle-mounted energy storage system control method has the beneficial technical effects that the urban rail train vehicle-mounted energy storage system control method based on the power-time curve is proposed, according to the scheme, the control method can fully play the advantages of high super capacitor absorption efficiency and large absorption power, reduce the power impact to the storage battery, improve the performance of the hybrid energy storage system, and reduce unnecessary heat dissipation.
Description
technical field [0001] The invention relates to a braking energy recovery technology for urban rail trains, in particular to a control method for an on-board energy storage system of urban rail trains based on a power-time curve. Background technique [0002] In order to recover and utilize the braking energy of urban rail trains, the most common method is to install a vehicle-mounted hybrid energy storage device on the urban rail train. The vehicle-mounted hybrid energy storage device usually adopts a "super capacitor + battery" structure. During the braking process of the urban rail train, the traction motor works in the power generation state, converting the kinetic energy of the vehicle into electrical energy. At the same time, a first-order low-pass filter is used to decompose the power of train regenerative braking into high-frequency components and low-frequency components, thereby generating corresponding power control signals, and controlling the bidirectional DC-DC...
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Patent Timeline
20 Dec 2019
Publication
CN110588358A
- IPC
- B60L7/16; B60L58/12; B60L50/53
- CPC
- B60L7/16; B60L58/12; B60L50/53; Y02T30/00
- Inventors
- 徐凯; 陈臻