CN201438642U - Novel passenger-car charger - Google Patents
Novel passenger-car charger Download PDFInfo
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- CN201438642U CN201438642U CN2009201090584U CN200920109058U CN201438642U CN 201438642 U CN201438642 U CN 201438642U CN 2009201090584 U CN2009201090584 U CN 2009201090584U CN 200920109058 U CN200920109058 U CN 200920109058U CN 201438642 U CN201438642 U CN 201438642U
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Abstract
The utility model relates to a novel passenger-car charger, which comprises a control system and a charger main circuit, wherein the charger main circuit comprises an input circuit, an output circuit and a DC/DC converter circuit which are arranged between the input and the output circuits, wherein the control system adopts a single chip 90C196KC of 196-series and a dephasing control integrated circuit UC1875 or UC2875, the control system is connected with the input circuit, the DC/DC converter circuit and the output circuit, the DC/DC converter circuit adopts a full-bridge zero-voltage zero-current PWM softkey high-frequency converter circuit, a passenger-car DC600V power source is accessed to the input circuit and is converted to a DC 110V DC power source through the full-bridge DC/DC converter circuit of the zero-voltage zero-current switch to be outputted through the output circuit. The novel passenger-car charger solves the problems such as the current trailing of IGBT, reduces the switching loss, improves the efficiency and realizes the miniaturization and high-frequency orientation of the unit.
Description
Technical field
The utility model relates to a kind of passenger vehicle, refers in particular to a kind of charger of passenger train of the DC600V of employing power supply system of train.
Background technology
Present novel 25T, 25G air-conditioned passenger train electric power system have been cancelled generator car, adopt full row to connect DC600V direct current supply mode.Under the DC600V power supply network, each air-conditioned passenger train power supply disposes each one in inverter case and charger case respectively, and wherein: the charger case is made up of DC/DC charger and the 3.5kVA single-phase inverter of 8kW.
Novel 25T, 25G passenger vehicle vehicle control system and part power consumption equipment adopt the DC110V power supply, and its power supply is provided by the 8kWDC/DC charger.The DC110V power-supply system is made up of DC/DC charging device and the 120Ah cadmium-nickel alkaline storage battery of the 8kW of every joint vehicle, and the DC110V power-supply system unit of every single-unit vehicle is in parallel with full row DC110V main line by diode, constitutes full train DC110V power supply network.3.5kVA single-phase inverter is reverse into AC220V with DC 110V and uses to the single phase alternating current (A.C.) load on the car.
Charger is the crucial power supply unit of DC600V passenger vehicle, and the DC600V passenger vehicle proposes higher requirement to the control mode of charger, and charger also should have current limliting constant voltage charge and temperature compensation function except that having corresponding protection function own.Usually the charger main circuit adopts the DC/DC full-bridge circuit.
The DC/DC DC converter is the converter that a kind of DC power supply is converted to another kind of or multiple direct current energy.Press the switch condition of switching tube, DC converter can be divided into two kinds on hard switching (Hard switching) and soft switch (Soft switching).The switching device of hard switching DC converter is to bear voltage or flowing through the circuit of opening or turn-offing under the situation of electric current, therefore open or turn off process in be accompanied by bigger loss, promptly so-called switching loss.Converter operating state one regularly, the loss that switching tube is opened or turn-offed once also is certain, owing to also there is the vibration of wiring inductance and parasitic capacitance, thereby the switching frequency of hard switching DC converter is high more in the switching process, on-state and dynamic loss are big more.The switching process of soft switch DC current transformer is the resonance by outer coilloading and electric capacity, makes electric current in the switching device (or both end voltage) press sine or the variation of quasi sine rule, and when the electric current natural zero-crossing, device turn-offs; When voltage drops to zero, break-over of device.Switching device is finished the process of conducting and shutoff under no-voltage or zero current condition, can increase substantially switching frequency, for the miniaturization of converter and the raising of unit power create conditions.
According to the difference of soft switch DC converter circuit topological structure, full-bridge converter can be divided into: phase shifting control no-voltage (ZVS) switch PWM DC/DC full-bridge converter, phase shifting control zero current (ZCS) switch PWM DC/DC full-bridge converter, phase shifting control zero-voltage zero-current (ZVZCS) switch PWM DC/DC full-bridge converter.
There are four families such as Zhuzhou Electric Locomotive Institute, Nanjing Hua Shi company, Wuhan are just far away, sword lake in the domestic producer that produces vehicle-mounted 8kW DC/DC charger at present.Remove the sword lake and adopt Germany technology, introduce outside the module assembling unit, other three tame chargers belong to the product of early development development, though all adopt DC/DC full-bridge converter topology, circuit form and control mode have nothing in common with each other.Except that the hard switching control mode that a family adopts, all the other two families all adopt phase shift no-voltage ZVS PWM control mode.
Hard switching PWM control mode implements than being easier to, and controls also fairly simple.But the raising of switching frequency is restricted.This miniaturization and lightweight to unit is unfavorable.
Adopt soft switch phase shift no-voltage ZVS PWM control mode, with adopting the hard switching technology by comparison, switching frequency is higher.But still there is deficiency in this control mode, because there is the current tail phenomenon in IGBT when turn-offing, produces bigger turn-off power loss thus.In order to reduce turn-off power loss, be necessary bigger electric capacity in parallel to IGBT.Can reduce the turn-off power loss of IGBT although it is so, but also limit the raising of switching frequency.
The utility model content
The technical problem that the utility model solves is: a kind of passenger vehicle current charges device is provided, so that improve switching frequency, reduces turn-off power loss.
Technical solution of the present utility model is: a kind of new type passenger car charger, it comprises control system and charger main circuit, wherein, this charger main circuit comprises input circuit, output circuit and be connected in DC/DC converter circuit between the two, this control system respectively with input circuit, DC/DC converter circuit and output circuit are connected, described control system comprises control chip and phase shifting control integrated circuit, control chip and peripheral circuit are formed the control of this charger, drive and protective circuit, phase-shift control circuit drives IGBT with control signal through drive circuit, and described DC/DC converter circuit adopts full-bridge zero-voltage zero current PWM soft switch high-frequency converter circuit; Passenger vehicle DC600V power supply inserts input circuit, and the full-bridge DC/DC converter circuit through described zero-voltage and zero-current switch under the control of control system is converted to the DC110V DC power supply, and by described output circuit output.
Aforesaid new type passenger car charger, wherein, described input circuit comprises charging circuit and input filter circuit, described charging circuit comprises charging contactor, charging resistor, short-circuiting contactor, fast acting fuse and the support electric capacity that is series at the conduct of DC600V power access end, and charging resistor be connected between charging contactor and fast acting fuse after short-circuiting contactor is in parallel; Described input filter circuit comprises input reactance device, aforementioned support electric capacity and electromagnetic interface filter.
Aforesaid new type passenger car charger, wherein, described input circuit also comprises discharge circuit, this discharge circuit comprises the discharge contactor and the discharge resistance of serial connection.
Aforesaid new type passenger car charger, wherein, described input circuit also comprises the input voltage sensor that is connected between the input circuit positive and negative busbar, and the intermediate voltage transducer that is used to detect the support capacitance voltage, the output of input voltage sensor and intermediate voltage transducer is connected to control board and after the 80196KC control chip is judged, with the break-make of control charging contactor.
Aforesaid new type passenger car charger, wherein, described DC/DC converter circuit comprises four IGBT power models, high frequency transformer and full-wave rectifying circuits, wherein two power models are leading arm switch pipe, two other is the lagging leg switching tube, high frequency transformer is serially connected with resonant capacitance on the former limit, and the secondary of high frequency transformer connects full-wave rectifying circuit.
Aforesaid new type passenger car charger, wherein, described output circuit comprises output filter reactor, filter capacitor, electromagnetic interface filter and blocking diode, high-frequency DC after the aforementioned full-wave rectifying circuit rectification is pressed by output filter reactor and filter capacitor output galvanic current, exports this car, full-mesh main line and/or storage battery to by blocking diode again.
Aforesaid new type passenger car charger, wherein, control chip is 196 series monolithic 80C196KC, this phase shifting control integrated circuit is UC1875 or UC2875 type, it exports two groups of (A-B, C-D) 180 ° of complementations and lag time adjustable IGBT grid triggering signal, for and described leading arm switch pipe and lagging leg switching tube.
Aforesaid new type passenger car charger, wherein, described leading arm switch pipe turn-offs, and circuit returns the zero-time to what the lagging leg switching tube turn-offed interval greater than electric current after entering the circulation state.
Characteristics of the present utility model and advantage are: the utility model is the charger on the passenger train that can be applicable to the DC600V power supply system of train of unique full-bridge DC/DC translation circuit that has adopted zero-voltage zero-current (ZVZCS) switch, it makes the leading arm switch pipe of converter switch under no-voltage in very big load variations scope, the lagging leg switching tube is conducting and shutoff under zero current, solve the current tail problem of IGBT, reduced switching loss, improve efficient, realized the miniaturization and the high frequencyization of unit.
Description of drawings
Fig. 1 is the system block diagram of passenger vehicle charger of the present utility model.
Fig. 2 is a passenger vehicle charger main circuit schematic diagram of the present utility model.
Embodiment
The DC600V power supply system of train adopts and concentrates rectification, disperses the unsteady flow mode, and system mainly is made up of equipment such as DC600V power supply device, air-conditioning inverter, DC600V/DC110V charger supply unit, passenger vehicle electric control cabinet, storage batterys.DC600V power supply adopts two tunnel independently-powered, full row to connect, each car charger unit mode that works alone.
The utility model proposes a kind of new type passenger car charger, as shown in Figure 1, this charger comprises control system and charger main circuit, and wherein, this charger main circuit comprises input circuit, output circuit and is connected in DC/DC converter circuit between the two; Control system is connected with input circuit, DC/DC converter circuit and output circuit respectively, and in the utility model, this DC/DC converter circuit adopts full-bridge zero-voltage zero current PWM soft switch high-frequency converter circuit.Passenger vehicle DC600V power supply inserts input circuit, and the full-bridge DC/DC converter circuit through described zero-voltage and zero-current switch is converted to the DC110V DC power supply under the control of control system, and by described output circuit output.
Following conjunction with figs. and specific embodiment are described in further detail embodiment of the present utility model.
As shown in Figure 2, it is the circuit diagram of the charger main circuit of a specific embodiment of the present utility model.Wherein:
Input circuit comprises charging circuit and input filter circuit, with the level and smooth charging of realization power supply electrifying and the filtering of input voltage, improves the quality factor of unit input voltage.Wherein, be series at charging contactor KM401, charging resistor R401, short-circuiting contactor KM402, the fast acting fuse F401 of DC600V power access end conduct and support capacitor C 403～C406 and form charging circuit, charging resistor R401 be connected between charging contactor KM401, fast acting fuse F401 after short-circuiting contactor KM402 is in parallel; Input filter circuit comprises input reactance device L401, aforementioned support capacitor C 403～C406 and EMI input filter EMI401.
Preferably, input circuit also comprises discharge circuit, and this discharge circuit comprises the discharge contactor KM403 and the discharge resistance R402 of serial connection.
Preferably, input circuit also comprises the input voltage sensor V401 that is connected between the input circuit positive and negative busbar and is used to detect the intermediate voltage transducer (V402) that supports capacitor C 403～C406 voltage, the 196 single-chip microcomputer 80C196KC that the output signal of input voltage sensor V401, intermediate voltage transducer V402 is connected to aforementioned control system go up (not shown), and control the break-make of charging contactor KM401 in view of the above.
The input circuit operation principle:
The DC600V DC power supply inserts charger by the EMI input filter, control system detects input voltage by input voltage sensor V401, when input voltage within the limits prescribed the time, charging contactor KM401 adhesive, support capacitor C 403～C406 charging by fast acting fuse F401 and charging resistor R401 to intermediate link, when middle link voltage rose in the scope of setting, with short-circuiting contactor KM402 closure, charger full-bridge DC/DC converter began soft start work after delaying time.When charger breaks down, disconnect charging contactor KM401, charger and DC600V input disconnect compressor emergency shutdown.When charger is closed, discharge contactor KM403 closure supports electric charge on the electric capacity by discharge resistance R402 discharge.
Again as shown in Figure 2, in the present embodiment, this DC/DC converter circuit comprises four IGBT power model T1, T2, T3, T4, high frequency transformer TB401 and full-wave rectifying circuit D420, D421, wherein two power model T401, T402 are leading arm switch pipe, and two other power model T403, T404 are the lagging leg switching tube; High frequency transformer TB401 is made up of a former limit winding, two secondary windings, plays the effect of isolation and step-down.The DC/DC converter also includes the filter capacitor C409 of a parallel connection, to protect each power model; High frequency transformer is serially connected with resonant capacitance C410 on the former limit; the secondary of high frequency transformer connects the full-wave rectifying circuit that is made of diode D420, D421; and diode D420 has the absorption circuit that is made of resistance R 420 and capacitor C 420; diode D421 has the absorption circuit that is made of resistance R 421 and capacitor C 421; in addition; the DC/DC converter also comprises the current sensor A401 that is used to detect electric current on the bus; current sensor A401 signal is delivered to control system and is judged through the 80C196KC single-chip microcomputer, timely stoppage protection when the input overcurrent occurring.
DC/DC converter mode of operation:
DC/DC converter using full-bridge phase shifting zero-voltage zero-current PWM (ZVZCS-PWM) soft switch high-frequency converter circuit, operating frequency 20kHz.The phase-shift soft switch circuit has advantages such as operating frequency height, control is simple, efficient is high, antijamming capability is strong, Electro Magnetic Compatibility is good.
The DC/DC converter circuit is made up of IGBT power model T1, T2, T3, T4 and high frequency transformer TB401.Secondary full-wave rectifier D1, D2 and the filter capacitor of connecing of high frequency transformer, output 110V direct voltage.
Control system is made up of 196 series monolithic 80C196KC and phase shifting control integrated circuit UC1875 or UC2875, single-chip microcomputer 80C196KC forms control, driving and protective circuit in conjunction with peripheral circuit, the effect of phase-shift control circuit provides the control signal that IGBT turns on and off, and can realize the output voltage closed-loop adjustment; The phase shifting control integrated circuit export two groups (A-B, C-D) 180 ° of complementations and lag time adjustable IGBT grid triggering signal, power supply leading arm switch pipe in road and lagging leg switching tube.
In a complete switch periods, the acting in conjunction of leading arm switch Guan Zaiqi output junction capacitance and shunt capacitance realizes that down no-voltage turn-offs, and no-voltage to open be to produce the resonance realization by line inductance, isolating transformer leakage inductance with switching tube output junction capacitance and shunt capacitance.In order to make the lagging leg switching tube can finish its switching process under zero current, leading arm switch pipe turn-offs, and circuit enters behind the circulation state time interval of lagging leg switching tube shutoff and should return the zero-time greater than electric current.
The full-bridge DC/DC translation circuit advantage of zero-voltage zero-current (ZVZCS) switch: in very big load variations scope, make the leading arm switch pipe of converter switch under no-voltage, lagging leg switching tube and secondary rectifier diode conducting and shutoff under zero current.
Again as shown in Figure 2, in the present embodiment, output circuit comprises output filter reactor L420, filter capacitor C422, C423, C424, C425, EMI output filter EMI420 and blocking diode D422, filter capacitor C422, C423, C424, be connected to after the C425 parallel connection between the positive and negative terminal of output circuit, filter reactor L420 is connected between rectification circuit and the output filter capacitor, be that high-frequency DC after the aforementioned full-wave rectifying circuit rectification is pressed by output filter reactor L420 and filter capacitor C422, C423, C424, C425 exports galvanic current, utilize the EMI output filter to reduce mutual interference mutually between system and the external circuit, export this car to by blocking diode D422 again, full-mesh main line and/or storage battery.
The output circuit operation principle:
Isolate the secondary and the full-wave rectifying circuit of high frequency transformer and finish the conversion of PWM voltage wave, through filter reactor L420, filter capacitor C422, C423, C424, C425 filtering output direct current DC110V voltage.Output circuit has the EMI circuit, is connected with storage battery, load by blocking diode D422.Be connected with output voltage sensor V420 and output current sensors A 420 on the output circuit, to realize the closed-loop control of DC/DC DC converter.
Voltage sensor V420 will detect to such an extent that output voltage values feeds back to the phase shifting control integrated circuit, so that dynamically regulate output voltage, guarantee the stable of output voltage.Because a very important function of charger is to charge a battery, if battery tension itself is very low, charger can not be worked in this case, under-voltage/load board is responsible for monitoring the voltage of storage battery, guarantee that charger can not start when storage battery is under-voltage, another function of under-voltage/load board is for charger provides a very little load, also can guarantee output voltage stabilization like this when charger is unloaded.
Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.
Claims (8)
1. new type passenger car charger, it comprises control system and charger main circuit, it is characterized in that, this charger main circuit comprises input circuit, output circuit and be connected in DC/DC converter circuit between the two, this control system respectively with input circuit, DC/DC converter circuit and output circuit are connected, described control system comprises control chip and phase shifting control integrated circuit, control chip and peripheral circuit are formed the control of this charger, drive and protective circuit, phase-shift control circuit is with the IGBT power model of control signal through drive circuit driving DC/DC converter circuit, and described DC/DC converter circuit adopts full-bridge zero-voltage zero current PWM soft switch high-frequency converter circuit; Passenger vehicle DC600V power supply inserts input circuit, and the full-bridge DC/DC converter circuit through described zero-voltage and zero-current switch under the control of control system is converted to the DC110V DC power supply, and by described output circuit output.
2. new type passenger car charger as claimed in claim 1, it is characterized in that, described input circuit comprises charging circuit and input filter circuit, described charging circuit comprise the charging contactor (KM401) that is series at the DC600V power access end, charging resistor (R401), short-circuiting contactor (KM402), fast acting fuse (F401) and support electric capacity (C403～C406), and charging resistor (R401) be connected between charging contactor (KM401) and fast acting fuse (F401) after short-circuiting contactor (KM402) is in parallel; Described input filter circuit comprises input reactance device (L401), aforementioned support electric capacity (C403～C406) and electromagnetic interface filter (EMI401).
3. new type passenger car charger as claimed in claim 2 is characterized in that described input circuit also comprises discharge circuit, and this discharge circuit comprises the discharge contactor (KM403) and the discharge resistance (R402) of serial connection.
4. new type passenger car charger as claimed in claim 2, it is characterized in that, described input circuit also comprises the input voltage sensor (V401) that is connected between the input circuit positive and negative busbar and is used for detect supporting electric capacity (the intermediate voltage transducer (V402) of voltage of C403～C406), the output of input voltage sensor (V401) and intermediate voltage transducer (V402) is connected to control system, and the break-make of charging contactor (KM401) is judged and controlled to control chip in view of the above.
5. as each described new type passenger car charger of claim 1 to 4, it is characterized in that, described DC/DC converter circuit comprises four IGBT power models (T1, T2, T3, T4), high frequency transformer (TB401) and full-wave rectifying circuit (D420, D421), wherein two power models (T1, T2) are leading arm switch pipe, two other (T3, T4) is the lagging leg switching tube, high frequency transformer (TB401) is serially connected with resonant capacitance (C410) on the former limit, and the secondary of high frequency transformer connects full-wave rectifying circuit (D420, D421).
6. new type passenger car charger as claimed in claim 5, it is characterized in that, described output circuit comprises output filter reactor (L420), filter capacitor (C422, C423, C424, C425), electromagnetic interface filter (EMI420) and blocking diode (D422), high-frequency DC after the aforementioned full-wave rectifying circuit rectification is pressed by output filter reactor (L420) and filter capacitor (C422, C423, C424, C425) output galvanic current, exports this car, full-mesh main line and/or storage battery to by blocking diode (D422) again.
7. new type passenger car charger as claimed in claim 6, it is characterized in that, described control chip is 196 series monolithic 80C196KC, this phase shifting control integrated circuit is UC1875 or UC2875 type, it exports two groups of (A-B, C-D) 180 ° of complementations and lag time adjustable IGBT grid triggering signal, for and described leading arm switch pipe and lagging leg switching tube.
8. new type passenger car charger as claimed in claim 7 is characterized in that, described leading arm switch pipe turn-offs, and circuit returns the zero-time to what the lagging leg switching tube turn-offed interval greater than electric current after entering the circulation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201090584U CN201438642U (en) | 2009-07-06 | 2009-07-06 | Novel passenger-car charger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201090584U CN201438642U (en) | 2009-07-06 | 2009-07-06 | Novel passenger-car charger |
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| CN201438642U true CN201438642U (en) | 2010-04-14 |
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| CN2009201090584U Expired - Lifetime CN201438642U (en) | 2009-07-06 | 2009-07-06 | Novel passenger-car charger |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263306A (en) * | 2011-06-16 | 2011-11-30 | 上海雷博新能源汽车技术有限公司 | Charging method, charging module and charger with automatically adjustable single efficiency |
| CN102437723A (en) * | 2011-10-26 | 2012-05-02 | 浙江吉利汽车研究院有限公司 | High performance soft switch for electric automobile DC/DC converter |
| CN103441540A (en) * | 2013-08-12 | 2013-12-11 | 西安睿诺新能源有限公司 | Vehicle-mounted storage battery set charger circuit based on chopped waves |
| CN103875170A (en) * | 2011-10-17 | 2014-06-18 | 施耐德东芝换流器欧洲公司 | Power converter and pre-charging circuit of same |
| CN107887134A (en) * | 2017-12-22 | 2018-04-06 | 马军 | A kind of energy-economic transformer and electric power system |
| CN110040028A (en) * | 2019-04-15 | 2019-07-23 | 创驱（上海）新能源科技有限公司 | A kind of integral control circuit of Vehicular charger and DCDC conversion equipment |
-
2009
- 2009-07-06 CN CN2009201090584U patent/CN201438642U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263306A (en) * | 2011-06-16 | 2011-11-30 | 上海雷博新能源汽车技术有限公司 | Charging method, charging module and charger with automatically adjustable single efficiency |
| CN102263306B (en) * | 2011-06-16 | 2013-12-25 | 上海雷博新能源汽车技术有限公司 | Charging method, charging module and charger with automatically adjustable single efficiency |
| CN103875170A (en) * | 2011-10-17 | 2014-06-18 | 施耐德东芝换流器欧洲公司 | Power converter and pre-charging circuit of same |
| CN103875170B (en) * | 2011-10-17 | 2016-08-17 | 施耐德东芝换流器欧洲公司 | Electric power converter and pre-charge circuit thereof |
| CN102437723A (en) * | 2011-10-26 | 2012-05-02 | 浙江吉利汽车研究院有限公司 | High performance soft switch for electric automobile DC/DC converter |
| CN103441540A (en) * | 2013-08-12 | 2013-12-11 | 西安睿诺新能源有限公司 | Vehicle-mounted storage battery set charger circuit based on chopped waves |
| CN103441540B (en) * | 2013-08-12 | 2018-08-21 | 西安睿诺新能源有限公司 | A kind of onboard power storage battery group charger circuit based on copped wave |
| CN107887134A (en) * | 2017-12-22 | 2018-04-06 | 马军 | A kind of energy-economic transformer and electric power system |
| CN107887134B (en) * | 2017-12-22 | 2019-09-27 | 马军 | A kind of energy-economic transformer and power supply system |
| CN110040028A (en) * | 2019-04-15 | 2019-07-23 | 创驱（上海）新能源科技有限公司 | A kind of integral control circuit of Vehicular charger and DCDC conversion equipment |
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