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WO2013114573A1 - Dispositif source d'énergie électrique de charge - Google Patents

Dispositif source d'énergie électrique de charge Download PDF

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Publication number
WO2013114573A1
WO2013114573A1 PCT/JP2012/052173 JP2012052173W WO2013114573A1 WO 2013114573 A1 WO2013114573 A1 WO 2013114573A1 JP 2012052173 W JP2012052173 W JP 2012052173W WO 2013114573 A1 WO2013114573 A1 WO 2013114573A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy storage
storage source
energy
inductor
load power
Prior art date
Application number
PCT/JP2012/052173
Other languages
English (en)
Japanese (ja)
Inventor
ミハエル フィッシャー
ヨハン エッカート
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to DE201211005790 priority Critical patent/DE112012005790T5/de
Priority to PCT/JP2012/052173 priority patent/WO2013114573A1/fr
Publication of WO2013114573A1 publication Critical patent/WO2013114573A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0064—Magnetic structures combining different functions, e.g. storage, filtering or transformation

Definitions

  • the present invention relates to a load power supply that charges a second energy storage source that compensates for the output or capacity of the first energy storage source.
  • FIG. 7 is a configuration diagram showing the configuration of the battery power circuit disclosed in Patent Document 1.
  • the battery power circuit shown in FIG. 7 includes a battery 1 to which a load to which power is to be supplied is connected, a series connected power source in which a capacitor group 2 is connected in series with each other, between battery 1 and capacitor group 2, , DC / DC converter 3 for transferring power between battery 1 and load, and control device 5 for controlling DC / DC converter 3.
  • Control device 5 detects the voltage of capacitor group 2 If the detected voltage is smaller than the first threshold voltage (for example, 4.0 V), the DC / DC converter 3 charges the capacitor group 2. The total voltage of the battery 1 and the capacitor group 2 is applied to the power conversion circuit 4.
  • the first threshold voltage for example, 4.0 V
  • the control device 5 performs switching control of the MOSFET 31 as the upper arm switch or the MOSFET 32 as the lower arm switch, whereby the battery 1 and the capacitor Power transfer takes place between group two.
  • a current flows through the inductance 33, and the capacitor group 2 is charged and discharged.
  • the invention disclosed in Patent Document 1 is for a battery capable of preventing a decrease in power supplied to the motor at the time of start-up and obtaining a predetermined engine speed even when the idle stop operation is continuously performed.
  • the purpose is to obtain a power circuit. That is, when the voltage of the capacitor group 2 is smaller than the predetermined value, the engine rotation is maintained, and the capacitor group 2 is charged by the step-up operation of the DC / DC converter 3.
  • the present invention also applies to the output control of the DC / DC converter according to the capacitor voltage which falls with time when torque assist is performed to operate the motor simultaneously with the engine. Applied. In any case, it is desirable that the time required for charging the capacitor group 2 by the operation of the DC / DC converter 3 be short.
  • An object of the present invention is to provide a load power supply capable of shortening the time required for charging a second energy storage source to compensate for the output or capacity of the first energy storage source.
  • a load power supply device of the invention comprises a first energy storage source (for example, a battery Bat in the embodiment); A second energy storage source (e.g., a capacitor SC in the embodiment) serially connected to the energy storage source, and an inductor (between the first energy storage source and the second energy storage source)
  • a DC / DC converter for example, the DC / DC converter 105 in the embodiment
  • the inductance component on the path of the reactor current flowing through the first energy storage source or the second energy storage source causes the inductance component of the energy from the first energy storage source or the second energy storage source to Are being different from each accumulation time and upon release of the energy stored in the inductor to.
  • the DC / DC converter when energy is transferred from the second energy storage source to the first energy storage source, stores energy in the inductor.
  • a first switching element for example, the transistor T1 in the embodiment
  • a second switching element for example, the transistor T2 in the embodiment
  • the second switch is connected to the connection point of the second energy storage source, and the other end of the inductor is connected to the second switch. Is connected to one end of the grayed element, in the middle of the winding of the inductor, it is characterized in that one end of said first switching element is connected.
  • the first energy storage source and the second energy storage source are energy obtained by energy regeneration by a load to which the load power supply supplies electric power.
  • a switch for example, the switch 201 in the embodiment for selecting whether to charge both or either the first energy storage source or the second energy storage source. It is characterized.
  • the first energy storage source is disposed on the low voltage side
  • the second energy storage source is disposed on the high voltage side.
  • the time required to charge the second energy storage source that compensates for the output or capacity of the first energy storage source can be shortened.
  • the voltage obtained by energy regeneration is lower than the voltage required to charge both the first energy storage source and the second energy storage source. Also, any one of the first energy storage source and the second energy storage source can be charged.
  • FIG. 3 is a diagram showing the relationship between the internal configuration of the load power supply device of the first embodiment and the variable load and converter control device.
  • (A) and (b) is a figure which shows each state when the transistor T2 is turned on / off in the load power supply device shown in FIG. 1 with the transistor T1 turned off.
  • (A) And (b) is a graph which shows a time-dependent change of reactor current when transistor T2 is switching-controlled.
  • (A) and (b) is a figure which shows each state when the transistor T1 is turned on / off in the load power supply device shown in FIG. 1 with the transistor T2 turned off.
  • (A) And (b) is a graph which shows a time-dependent change of reactor current when transistor T1 is switching-controlled.
  • FIG. 1 is a diagram showing the relationship between the internal configuration of the load power supply device of the first embodiment and the variable load and the converter control device.
  • the load power supply device of the first embodiment is connected to a variable load 101 including a DC / AC inverter and a motor / generator.
  • the load power supply device includes a battery Bat, an electric double layer capacitor (hereinafter simply referred to as “capacitor”) SC, a variable inductor VI, transistors T1 and T2, and a free wheeling diode (hereinafter simply referred to as “diode”) D1. And D2.
  • the switching control to turn on and off the transistors T1 and T2 is performed by the converter control device 103.
  • variable inductor VI, the transistors T1 and T2, and the diodes D1 and D2 constitute a DC / DC converter 105 shown by a dotted line in FIG.
  • the DC / DC converter 105 charges and discharges energy between the battery Bat and the capacitor SC via the variable inductor VI.
  • An end point 1 and an end point 3 are provided at both ends of the winding of the variable inductor VI, and an end point 2 for utilizing a part of the inductance of the winding is also provided.
  • the end point 2 when the number of turns of the variable inductor VI is “N”, the end point 2 is provided at a position where the number of turns from the end point 1 is N / 2. Therefore, when the inductance of the variable inductor VI is “L”, the inductance from the end point 1 to the end point 2 is “L / 4”. The position of the end point 2 on the winding of the variable inductor VI is variable.
  • the output voltage of the battery Bat is a substantially constant DC voltage, which is higher than the maximum voltage that the capacitor SC can output.
  • the battery Bat and the capacitor SC are connected in series, and the terminal point 1 of the variable inductor VI is connected to the connection point.
  • the collector of the transistor T2 is connected to the end point 3 of the variable inductor VI, and the emitter of the transistor T1 is connected to the end point 2.
  • a diode D1 is connected in parallel to the transistor T1, and a diode D2 is connected in parallel to the transistor T2.
  • the cathode of the reflux diode is connected to the collector of the transistor, and the anode of the reflux diode is connected to the emitter of the transistor.
  • FIGS. 2 (a) and 2 (b), and FIGS. b) to explain.
  • FIGS. 2A and 2B are diagrams showing respective states when the transistor T2 is turned on and off while the transistor T1 is in the off state in the load power supply device shown in FIG. 2 (a) shows the reactor current IL when the transistor T2 is in the on state by a dotted line, and FIG. 2 (b) shows the reactor current when the transistor T2 is turned from the on state to the off state. IL is shown as a dotted line.
  • reactor current IL flows from the battery Bat to the transistor T2 via the end point 1 and the end point 3 of the variable inductor VI, as shown in FIG. At this time, energy from the battery Bat is stored in the variable inductor VI.
  • the transistor T2 is turned off, the energy stored in the variable inductor VI is released as shown in FIG. 2 (b). Therefore, the reactor current IL is transmitted through the end point 1 and the end point 2 of the variable inductor VI. It flows through the diode D1.
  • the energy stored in the variable inductor VI from the battery Bat in the state shown in FIG. 2A is transferred to the capacitor SC. That is, the energy of the battery Bat charges the capacitor SC.
  • FIGS. 3A and 3B are graphs showing time-dependent changes in reactor current when the transistor T2 is subjected to switching control.
  • FIG. 3 (a) shows the time-dependent change of the reactor current IL in the load power supply device of the first embodiment shown in FIG. 1
  • FIG. 3 (b) shows that the emitter of the transistor T1 is connected to the end point 3
  • the change over time of the reactor current IL in the load power supply device of the different configuration is shown.
  • the load power supply device having a configuration in which the emitter of the transistor T1 is connected to the end point 3 is the same as the configuration of the battery 1, capacitor group 2 and DC / DC converter 3 of the battery power circuit shown in FIG.
  • the load power supply device When the converter control device 103 turns on only the transistor T2 when both the transistors T1 and T2 are in the off state, the load power supply device according to the first embodiment is in the state shown in FIG. 2A, and FIG.
  • the reactor current IL is increased as shown in FIG.
  • Converter control device 103 turns on transistor T2, and when time tc1 elapses, returns the transistor T2 to the off state.
  • the time tc1 is expressed by the following equation (1).
  • Vbat is a voltage between terminals of the battery Bat.
  • tc1 L ⁇ ILth / Vbat (1)
  • the load power supply device of the first embodiment is in the state shown in FIG. 2 (b), and as shown in FIG. 3 (a), the reactor current IL decreases.
  • the reactor current IL in the state shown in FIG. 2A flows through the end point 1 and the end point 3 of the variable inductor VI
  • the inductance component on the path of the reactor current IL is “L”.
  • the reactor current IL in the state shown in FIG. 2B flows through the end point 1 and the end point 2 of the variable inductor VI
  • the inductance component on the path of the reactor current IL is “L / 4”.
  • the reactor current IL decreases from twice the value (2ILth) immediately before the off control.
  • Vsc is a voltage between terminals of the capacitor SC.
  • the time td1 is half of the time td1pa.
  • time T1 of one cycle in on / off control of the transistor T2 is shortened. For this reason, it is possible to shorten the time for charging the capacitor SC by the energy of the battery Bat.
  • FIGS. 4 (a) and 4 (b), and FIGS. Description will be made with reference to b).
  • FIGS. 4A and 4B are diagrams showing respective states when the transistor T1 is turned on and off while the transistor T2 is in the off state in the load power supply device shown in FIG. 4 (a) shows the reactor current IL when the transistor T1 is in the on state by a dotted line, and FIG. 4 (b) shows the reactor current when the transistor T1 is turned from the on state to the off state. IL is shown as a dotted line.
  • the reactor current IL flows from the capacitor SC to the end point 2 and the end point 1 of the variable inductor VI via the transistor T1, as shown in FIG. At this time, energy from the capacitor SC is stored in the variable inductor VI.
  • the transistor T1 is turned off, the energy stored in the variable inductor VI is released as shown in FIG. 4B, so that the reactor current IL passes through the end point 1 and the end point 3 of the variable inductor VI. It flows through the diode D2.
  • the energy stored in the variable inductor VI from the capacitor SC is transferred to the battery Bat. That is, the energy of the capacitor SC charges the battery Bat.
  • FIGS. 5A and 5B are graphs showing time-dependent changes in reactor current when the transistor T1 is subjected to switching control.
  • FIG. 5 (a) shows the time-dependent change of the reactor current IL in the load power supply device of the first embodiment shown in FIG. 1
  • FIG. 5 (b) shows that the emitter of the transistor T1 is connected to the end point 3.
  • the time-dependent change of reactor current IL in the load power supply device of the same composition as conventional is shown.
  • the load power supply device of the first embodiment is in the state shown in FIG. 4 (b), and as shown in FIG. 5 (a) It decreases from the value of (ILth).
  • a time td2 until the variable inductor VI finishes releasing energy and the reactor current IL becomes 0 is expressed by the following equation (5).
  • the inductance component on the path of the reactor current IL is "L / 4" .
  • the inductance component on the path of the reactor current IL is “L”.
  • the inductance component on the path of the reactor current IL is “L” both when the transistor T1 is in the on state and in the off state. It remains unchanged.
  • the time tc2 is half of the time tc2pa.
  • time T2 of one cycle in on / off control of the transistor T1 is shortened. Therefore, the time for charging the battery Bat with the energy of the capacitor SC can be shortened.
  • the end point 2 of the variable inductor VI is provided at a position where the number of turns from the end point 1 is N / 2, ie, at a midpoint, For example, it is not limited to the middle point.
  • the end point 2 may be provided at a position where the number of turns from the end point 1 is N / 3.
  • the time for charging the capacitor SC by the energy of the battery Bat can be further shortened.
  • FIG. 6 is a diagram showing the relationship between the internal configuration of the load power supply device of the second embodiment and the variable load and the converter control device.
  • the difference between the load power supply device of the second embodiment and the load power supply device of the first embodiment is that a switch 201 is provided.
  • the second embodiment is the same as the first embodiment, and in FIG. 6, the same or equivalent parts as the components of the first embodiment are given the same reference numerals or corresponding reference numerals to simplify or omit the description.
  • the switch 201 connects the negative terminal of the variable load to either the terminal n1 connected to the emitter of the transistor T1 (anode of the diode D1) or the terminal n2 connected to the emitter of the transistor T2 (anode of the diode D2). Do.
  • the switch 201 is controlled by the converter control device 103.
  • Converter control device 103 controls switch 201 based on the magnitude of voltage (hereinafter referred to as “regenerative voltage”) Vrg generated when variable load 101 performs a regenerative operation.
  • the regenerative voltage Vrg is detected by the voltage sensor 203 shown in FIG.
  • the converter control device 103 of the present embodiment selects the terminal n2 of the switch 201 if the regenerative voltage Vrg is a predetermined value or more, and selects the terminal n1 of the switch 201 if the regenerative voltage Vrg is less than the predetermined value.
  • the predetermined value is a voltage required to charge the capacitor SC and the battery Bat.
  • the electric path in which the terminal n2 is selected is the same as the electric path shown in FIG. 1 in the first embodiment, and the regenerative voltage Vrg charges the capacitor SC and the battery Bat.
  • the regenerative voltage Vrg when the terminal n1 is selected charges only the capacitor SC.
  • the regenerative voltage Vrg generated when the brake operation is performed at a low vehicle speed, that is, when the rotation speed of the motor / generator is low is low.
  • the low regenerative voltage Vrg is not sufficient for charging the capacitor SC and the battery Bat, but in the present embodiment, the low regenerative voltage Vrg is applied only to the capacitor SC.
  • the regenerative energy generated at low vehicle speeds can be used effectively.
  • the transistors T1 and T2 are used as switching elements, but semiconductor elements such as MOSFETs and IGBTs may be used as switching elements.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

La présente invention concerne un dispositif source d'énergie électrique de charge qui est pourvu : d'une première source de stockage d'énergie ; d'une seconde source de stockage d'énergie connectée en série à la première source de stockage d'énergie ; et d'un convertisseur CC/CC pour convertir de l'énergie par l'intermédiaire d'une bobine d'induction entre la première source de stockage d'énergie et la seconde source de stockage d'énergie. La composante d'inductance sur le trajet du courant de réacteur qui passe à travers la bobine d'induction varie entre l'instant auquel la bobine d'induction stocke de l'énergie à partir de la première source de stockage d'énergie ou la seconde source de stockage d'énergie et l'instant auquel l'énergie stockée dans la bobine d'induction est libérée. Ainsi, il est possible de réduire le temps nécessaire pour charger la seconde source de stockage d'énergie, qui complète la sortie ou capacité de la première source de stockage d'énergie.
PCT/JP2012/052173 2012-01-31 2012-01-31 Dispositif source d'énergie électrique de charge WO2013114573A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE201211005790 DE112012005790T5 (de) 2012-01-31 2012-01-31 Last-Energieversorgungseinrichtung
PCT/JP2012/052173 WO2013114573A1 (fr) 2012-01-31 2012-01-31 Dispositif source d'énergie électrique de charge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/052173 WO2013114573A1 (fr) 2012-01-31 2012-01-31 Dispositif source d'énergie électrique de charge

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WO2013114573A1 true WO2013114573A1 (fr) 2013-08-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103501036A (zh) * 2013-10-28 2014-01-08 上海同异动力科技有限公司 一种锂电池充放电控制电路
CN116979659A (zh) * 2023-06-20 2023-10-31 浙江华宇钠电新能源科技有限公司 一种钠离子电池及电动车辆

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003339165A (ja) * 2002-05-17 2003-11-28 Cosel Co Ltd 同期整流式スイッチング電源装置
WO2004066472A1 (fr) * 2003-01-24 2004-08-05 Mitsubishi Denki Kabushiki Kaisha Circuit d'alimentation de batterie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003339165A (ja) * 2002-05-17 2003-11-28 Cosel Co Ltd 同期整流式スイッチング電源装置
WO2004066472A1 (fr) * 2003-01-24 2004-08-05 Mitsubishi Denki Kabushiki Kaisha Circuit d'alimentation de batterie

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103501036A (zh) * 2013-10-28 2014-01-08 上海同异动力科技有限公司 一种锂电池充放电控制电路
CN116979659A (zh) * 2023-06-20 2023-10-31 浙江华宇钠电新能源科技有限公司 一种钠离子电池及电动车辆
CN116979659B (zh) * 2023-06-20 2024-02-27 浙江华宇钠电新能源科技有限公司 一种钠离子电池及电动车辆

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