CN102739099A - Auxiliary power device of straddle-type monorail train - Google Patents
Auxiliary power device of straddle-type monorail train Download PDFInfo
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- CN102739099A CN102739099A CN2012101621113A CN201210162111A CN102739099A CN 102739099 A CN102739099 A CN 102739099A CN 2012101621113 A CN2012101621113 A CN 2012101621113A CN 201210162111 A CN201210162111 A CN 201210162111A CN 102739099 A CN102739099 A CN 102739099A
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Abstract
The invention relates to an auxiliary power device of a straddle-type monorail train. The device comprises a main circuit module and a control circuit module, wherein the main circuit module is provided with a filter reactor, a pre-charge circuit, a support capacitor, a three-phase inversion power module and an output transformer; the pre-charge circuit is connected with the support capacitor through an EMI (Electro Magnetic Interference) filter; and the three-phase inversion power module is connected with the output transformer through a three-phase alternating current filter. By the technical scheme of the invention, the main circuit adopts a modular design and has a simple and reliable structure, wherein the power module adopts a heat pipe radiator for heat dissipation, and the heat dissipation power is high, which is beneficial to the improvement of the switching frequency of an IGBT (Insulated Gate Bipolar Translator), thus reducing the harmonic content of the alternating-current output wave shape, improving the power supply quality, and better protecting vehicle-mounted medium voltage equipment; the support capacitor adopts a high voltage film capacitor, thus the service life and the maintenance cycle of the product are long, and the reliability of the product is high; and an auxiliary control unit (ACU) adopts voltage and current double closed-loop control, the control quantity is converted from an alternating current quantity to a direct current quantity and is modulated through SVPWM (Space Vector Pulse Width Modulation), thus the voltage utilization rate is high and the harmonic content is small.
Description
Technical field
The present invention relates to a kind of municipal rail train auxiliary power unit, specifically, relate to a kind of auxiliary power unit of straddle-type monorail train.
Background technology
The straddle-type monorail train has that the circuit floor space is little, climbing capacity is strong,, plurality of advantages such as construction cost low, noise little little through sweep, and success is successfully runed at No. two lines of monorail in Chongqing.Auxiliary power unit (SIV) provides three-phase alternating-current supply for equipment such as the traction controller of monorail train, illumination, air-conditionings, and stable, a high-quality auxiliary power unit (SIV) plays an important role to the safe operation of train.At present, the straddle-type monorail train of No. two lines in Chongqing still adopts foreign technology, expensive, in case and auxiliary power unit break down, need that producer repairs or replaces outside the associated country, maintenance or replacing time are long, can not on-call maintenance or replacing, time-consuming delaying work.And domestic existing train auxiliary power unit can not mate owing to each side such as performance parameter, interface, stability, thereby can not replace external product.
Summary of the invention
The present invention is directed to the above-mentioned deficiency that existing domestic monorail train auxiliary power unit exists; A kind of straddle-type monorail train auxiliary power unit that replaces former external product is provided, and this device can provide the three-phase alternating-current supply that reliability is high, harmonic content is little for monorail train.
Technical scheme of the present invention is: a kind of straddle-type monorail train auxiliary power unit; This device comprises main circuit module and control circuit module; The main circuit module is provided with filter reactor, pre-charge circuit, support electric capacity, three-phase inversion power model and output transformer; Pre-charge circuit is connected with support electric capacity through electromagnetic interface filter; The three-phase inversion power model is connected with output transformer through the three-phase alternating current filter, and DC1500V voltage is by filter reactor filtering, behind pre-charge circuit, electromagnetic interface filter and support electric capacity; Is three-phase alternating current by the three-phase inversion power model with direct current 1500V inversion; Behind the three-phase alternating current filter filtering, obtain the three-phase quasi sine voltage of low harmonic content again, output transformer carries out the alternating current that three-phase 380V, 50Hz are finally exported in voltage isolation and step-down, offers in the unit, place and presses load and charger; Control circuit module is provided with Auxiliary Control Element ACU, is used to control the stable output of three-phase alternating current.
Preferably; The output of main circuit module is provided with voltage and current sensor; Voltage and current sensor are connected with Auxiliary Control Element ACU; And voltage and current signal is sent to Auxiliary Control Element ACU, Auxiliary Control Element ACU carries out the three phase static coordinate with the voltage and current signal that collects, and to be tied to two cordic phase rotators be conversion, realizes that controlled quentity controlled variable transfers the transformation of DC quantity to from of ac.
Preferably, Auxiliary Control Element ACU adopts the DSP+FPGA framework, comprises electric current and voltage sampling module, PI adjustment module and SVPWM module; Control mode adopts the voltage and current double closed-loop control mode, and virtual voltage and given voltage are carried out the PI adjusting, and output is given as the electric current of current inner loop; And carry out PI with actual current and regulate; The output result gets final product the pulse signal of controlled three-phase inversion power model as the input of SVPWM module, thereby obtains stable three-phase alternating current output.
Preferably, the three-phase inversion power model adopts three-phase IGBT fully controlled bridge power model, and power model adopts the heat-pipe radiator heat radiation; Support electric capacity and adopt high voltage thin film electric capacity.
Preferably, also be provided with the two-stage protection in the Auxiliary Control Element ACU, wherein, FPGA protects IGBT, support capacitance overvoltage, bus overcurrent, output overcurrent fast, and DSP compares computing realization software protection through acquaintance's various analog quantitys.
Preferably, the main circuit module adopts fuse to carry out the short-circuit protection of main circuit.
The invention has the beneficial effects as follows: main circuit of the present invention adopts modularized design, and is simple and reliable for structure, wherein; Power model adopts the heat-pipe radiator heat radiation; Heat radiation power is big, helps to improve the switching frequency of IGBT, thereby reduces to exchange the output waveform harmonic content; Improve power quality, protect vehicle-mounted medium-voltage equipment better; Support electric capacity and adopt high voltage thin film electric capacity, prolonged the useful life and the maintenance period of product, reliability of products gets a promotion.Auxiliary Control Element ACU adopts voltage and current double closed-loop control in the control circuit module of the present invention, converts controlled quentity controlled variable into DC quantity by of ac, and through the SVPWM modulation, voltage utilization is high, and harmonic content is reduced; And Auxiliary Control Element ACU adopts the DSP+FPGA control architecture, has computing high with abundant ancillary equipment can be arranged, and can write down the operation and the fault data of auxiliary power unit automatically.
Description of drawings
Accompanying drawing 1 is the system topological figure of the specific embodiment of the invention.
Accompanying drawing 2 is the main circuit schematic diagram of the specific embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
A kind of straddle-type monorail train auxiliary power unit; This device comprises main circuit module and control circuit module, and the main circuit module is provided with filter reactor, pre-charge circuit, support electric capacity, three-phase inversion power model and output transformer, and pre-charge circuit is connected with support electric capacity through electromagnetic interface filter; The three-phase inversion power model is connected with output transformer through the three-phase alternating current filter; The three-phase inversion power model adopts three-phase IGBT fully controlled bridge power model, and the heat radiation of power model employing heat-pipe radiator, and heat radiation power is big; Help to improve the switching frequency of IGBT; Thereby reduce to exchange the output waveform harmonic content, improve power quality, protect vehicle-mounted medium-voltage equipment better; Support electric capacity and adopt high voltage thin film electric capacity, prolonged the useful life and the maintenance period of product, reliability of products gets a promotion; Control circuit module is provided with Auxiliary Control Element ACU, is used to control the stable output of three-phase alternating current.
The main circuit module adopts fuse to carry out the short-circuit protection of main circuit.The output of main circuit module is provided with voltage and current sensor; Voltage and current sensor are connected with Auxiliary Control Element ACU; And voltage and current signal is sent to Auxiliary Control Element ACU; Auxiliary Control Element ACU carries out the three phase static coordinate with the voltage and current signal that collects, and to be tied to two cordic phase rotators be conversion, realizes that controlled quentity controlled variable transfers the transformation of DC quantity to from of ac.
Auxiliary Control Element ACU adopts the DSP+FPGA framework, comprises electric current and voltage sampling module, PI adjustment module and SVPWM module, and control mode adopts the voltage and current double closed-loop control mode; Virtual voltage and given voltage are carried out the PI adjusting; Output is given as the electric current of current inner loop, and carry out PI with actual current and regulate, the output result is as the input of SVPWM module; Get final product 6 road IGBY pulse signals of controlled three-phase inversion power model, thereby obtain stable three-phase alternating current output.Also be provided with the two-stage protection in the Auxiliary Control Element ACU, wherein, FPGA protects IGBT, support capacitance overvoltage, bus overcurrent, output overcurrent fast, and DSP compares computing realization software protection through the various analog quantitys of input.
Operation principle: DC1500V voltage is by filter reactor filtering; Behind pre-charge circuit, electromagnetic interface filter and support electric capacity; Is three-phase alternating current by three-phase IGBT fully controlled bridge power model with direct current 1500V inversion; Behind the three-phase alternating current filter filtering, obtain the three-phase quasi sine voltage of low harmonic content again, output transformer carries out the alternating current that three-phase 380V, 50Hz are finally exported in voltage isolation and step-down, offers in the unit, place and presses load and charger.
This auxiliary power unit is applicable to the straddle-type monorail train.For example: in the straddle-type monorail train of six marshallings, comprise three auxiliary power units (being called for short SIV), three chargers; Two expansion consumer units; Wherein, SIV is that car load provides 3 phase 380V AC powers, design capacity separate unit 100kVA; Can transship 10% the operation 1 hour; The three-phase alternating current output of SIV obtains direct current 110V through charger, is storage battery and 110V electric, and the function of expansion consumer unit then is under the situation that this cell S IV breaks down, to be this unit mesolow electric through the 380V bus that connects full row by other cell S IV device.
Claims (6)
1. straddle-type monorail train auxiliary power unit; It is characterized in that: this device comprises main circuit module and control circuit module; The main circuit module is provided with filter reactor, pre-charge circuit, support electric capacity, three-phase inversion power model and output transformer; Pre-charge circuit is connected with support electric capacity through electromagnetic interface filter; The three-phase inversion power model is connected with output transformer through the three-phase alternating current filter, and DC1500V voltage is by filter reactor filtering, behind pre-charge circuit, electromagnetic interface filter and support electric capacity; Is three-phase alternating current by the three-phase inversion power model with direct current 1500V inversion; Behind the three-phase alternating current filter filtering, obtain the three-phase quasi sine voltage of low harmonic content again, output transformer carries out the alternating current that three-phase 380V, 50Hz are finally exported in voltage isolation and step-down, offers in the unit, place and presses load and charger; Control circuit module is provided with Auxiliary Control Element ACU, is used to control the stable output of three-phase alternating current.
2. straddle-type monorail train auxiliary power unit according to claim 1; It is characterized in that: the output of main circuit module is provided with voltage and current sensor; Voltage and current sensor are connected with Auxiliary Control Element ACU; And voltage and current signal is sent to Auxiliary Control Element ACU, Auxiliary Control Element ACU carries out the three phase static coordinate with the voltage and current signal that collects, and to be tied to two cordic phase rotators be conversion, realizes that controlled quentity controlled variable transfers the transformation of DC quantity to from of ac.
3. according to claim 1 or 2 any described straddle-type monorail train auxiliary power units; It is characterized in that: Auxiliary Control Element ACU adopts the DSP+FPGA framework, comprises electric current and voltage sampling module, PI adjustment module and SVPWM module, and control mode adopts the voltage and current double closed-loop control mode; Virtual voltage and given voltage are carried out the PI adjusting; Output is given as the electric current of current inner loop, and carry out PI with actual current and regulate, the output result is as the input of SVPWM module; Get final product the pulse signal of controlled three-phase inversion power model, thereby obtain stable three-phase alternating current output.
4. straddle-type monorail train auxiliary power unit according to claim 3 is characterized in that: the three-phase inversion power model adopts three-phase IGBT fully controlled bridge power model, and power model adopts the heat-pipe radiator heat radiation; Support electric capacity and adopt high voltage thin film electric capacity.
5. straddle-type monorail train auxiliary power unit according to claim 4; It is characterized in that: also be provided with the two-stage protection in the Auxiliary Control Element ACU; Wherein, FPGA protects IGBT, support capacitance overvoltage, bus overcurrent, output overcurrent fast, and DSP compares computing realization software protection through the various analog quantitys of input.
6. straddle-type monorail train auxiliary power unit according to claim 1 is characterized in that: the main circuit module adopts fuse to carry out the short-circuit protection of main circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101621113A CN102739099A (en) | 2012-05-24 | 2012-05-24 | Auxiliary power device of straddle-type monorail train |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101621113A CN102739099A (en) | 2012-05-24 | 2012-05-24 | Auxiliary power device of straddle-type monorail train |
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| CN102739099A true CN102739099A (en) | 2012-10-17 |
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| CN2012101621113A Pending CN102739099A (en) | 2012-05-24 | 2012-05-24 | Auxiliary power device of straddle-type monorail train |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812376A (en) * | 2012-11-07 | 2014-05-21 | 中国北车股份有限公司 | Urban rail vehicle auxiliary inverter and urban rail vehicle |
| CN104767366A (en) * | 2015-04-21 | 2015-07-08 | 永济新时速电机电器有限责任公司 | Auxiliary converter and vehicle |
| CN105449999A (en) * | 2014-08-22 | 2016-03-30 | 中车大连电力牵引研发中心有限公司 | Light-rail train auxiliary power supply system |
| CN106411152A (en) * | 2016-09-26 | 2017-02-15 | 株洲中车时代电气股份有限公司 | Integrated passenger train inverting module and inverter box |
| CN111162659A (en) * | 2018-11-08 | 2020-05-15 | 中车永济电机有限公司 | Auxiliary converter control equipment of direct-drive permanent magnet electric locomotive |
| CN111327102A (en) * | 2018-12-13 | 2020-06-23 | 中车唐山机车车辆有限公司 | Capacitor box of magnetic suspension train, magnetic suspension train and voltage stabilization control method |
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| CN1385956A (en) * | 2002-02-07 | 2002-12-18 | 艾默生网络能源有限公司 | Inverter and output voltage control method |
| CN201120854Y (en) * | 2007-11-27 | 2008-09-24 | 谢步明 | Suspension type current transformer of magnetic suspension train |
| CN202586800U (en) * | 2012-05-24 | 2012-12-05 | 青岛四方车辆研究所有限公司 | Auxiliary power unit for straddle type monorail train |
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2012
- 2012-05-24 CN CN2012101621113A patent/CN102739099A/en active Pending
Patent Citations (3)
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| CN1385956A (en) * | 2002-02-07 | 2002-12-18 | 艾默生网络能源有限公司 | Inverter and output voltage control method |
| CN201120854Y (en) * | 2007-11-27 | 2008-09-24 | 谢步明 | Suspension type current transformer of magnetic suspension train |
| CN202586800U (en) * | 2012-05-24 | 2012-12-05 | 青岛四方车辆研究所有限公司 | Auxiliary power unit for straddle type monorail train |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812376A (en) * | 2012-11-07 | 2014-05-21 | 中国北车股份有限公司 | Urban rail vehicle auxiliary inverter and urban rail vehicle |
| CN105449999A (en) * | 2014-08-22 | 2016-03-30 | 中车大连电力牵引研发中心有限公司 | Light-rail train auxiliary power supply system |
| CN104767366A (en) * | 2015-04-21 | 2015-07-08 | 永济新时速电机电器有限责任公司 | Auxiliary converter and vehicle |
| WO2016169281A1 (en) * | 2015-04-21 | 2016-10-27 | 永济新时速电机电器有限责任公司 | Auxiliary converter and vehicle |
| CN106411152A (en) * | 2016-09-26 | 2017-02-15 | 株洲中车时代电气股份有限公司 | Integrated passenger train inverting module and inverter box |
| CN111162659A (en) * | 2018-11-08 | 2020-05-15 | 中车永济电机有限公司 | Auxiliary converter control equipment of direct-drive permanent magnet electric locomotive |
| CN111327102A (en) * | 2018-12-13 | 2020-06-23 | 中车唐山机车车辆有限公司 | Capacitor box of magnetic suspension train, magnetic suspension train and voltage stabilization control method |
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Application publication date: 20121017 |