JPH0956197A - Power converting apparatus for automobile - Google Patents
Power converting apparatus for automobileInfo
- Publication number
- JPH0956197A JPH0956197A JP7208903A JP20890395A JPH0956197A JP H0956197 A JPH0956197 A JP H0956197A JP 7208903 A JP7208903 A JP 7208903A JP 20890395 A JP20890395 A JP 20890395A JP H0956197 A JPH0956197 A JP H0956197A
- Authority
- JP
- Japan
- Prior art keywords
- generator
- battery
- circuit
- engine
- voltage
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/963—Off-grid food refrigeration
- Y02A40/966—Powered by renewable energy sources
Landscapes
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車用の電力変
換装置に関し、特に自動車の直流電源を商用の交流電力
に変換する装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power converter for a vehicle, and more particularly to a device for converting a DC power source of a vehicle into commercial AC power.
【０００２】[0002]
【従来の技術】冷凍又は保冷コンテナにより生鮮食料品
等の輸送を行うトラックは、冷凍機の運転のために、自
動車の直流電力を交流電力に変換する電力変換装置が搭
載されている。その例が、特開平１−２８５７５６号の
特許公報に記載されている。図４にそのシステム構成図
を示す。これによると、車両走行時等のエンジン１運転
時には発電機２がエンジン１により駆動され発電をおこ
ない、バッテリ３を充電するとともに、昇圧回路４およ
びインバータ回路５で、バッテリ電圧からの昇圧および
直流から交流へ変換され、コンプレッサ等の負荷６に交
流電力が供給される。また、エンジン停止時には、バッ
テリ３から昇圧回路４およびインバータ回路５で、昇圧
および直流から交流へ変換され、負荷６に交流電力が供
給される。2. Description of the Related Art A truck for transporting perishable foods or the like by a refrigerating or refrigerating container is equipped with a power conversion device for converting direct current power of a vehicle into alternating current power for operating a refrigerator. An example thereof is described in Japanese Patent Application Laid-Open No. 1-285756. FIG. 4 shows the system configuration diagram. According to this, the generator 2 is driven by the engine 1 to generate power when the engine 1 is operating, such as when the vehicle is running, to charge the battery 3, and at the same time, the booster circuit 4 and the inverter circuit 5 increase the voltage from the battery voltage and reduce the direct current. It is converted into alternating current, and alternating current power is supplied to the load 6 such as a compressor. When the engine is stopped, the battery 3 boosts the voltage and converts the direct current to the alternating current by the booster circuit 4 and the inverter circuit 5, and supplies the load 6 with the AC power.
【０００３】[0003]
【発明が解決しようとする課題】上記先行例に開示され
たものは、通常１２Ｖ又は２４Ｖの電圧の発電機２又は
バッテリ３の出力を昇圧回路４のみで１００Ｖ又は２０
０Ｖの電圧に昇圧するため、図５に示すように昇圧回路
４の構成としては、昇圧用のリアクトル７を必要とする
ものである。ところで、前記冷凍機のコンプレッサは、
数ＫＷの電力を必要とするため、前記の昇圧用リアクト
ルは、１００Ａ程度の電流容量が必要とされる。このた
め、大きく、重いリアクトルが必要であるという問題が
あった。What is disclosed in the above-mentioned prior art is that the output of the generator 2 or the battery 3 having a voltage of 12 V or 24 V is normally 100 V or 20 only by the booster circuit 4.
Since the voltage is boosted to 0 V, the booster circuit 4 requires a boosting reactor 7 as shown in FIG. By the way, the compressor of the refrigerator is
Since the power of several KW is required, the boosting reactor is required to have a current capacity of about 100A. Therefore, there is a problem that a large and heavy reactor is required.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記問題を解
消するため、エンジンにより駆動される発電機と、バッ
テリと、昇降圧回路とを有する自動車用電力変換装置に
おいて、エンジン停止時には前記バッテリの出力を前記
発電機の電機子巻線の中性点に印加するようにした自動
車用電力変換装置が提供される。In order to solve the above problems, the present invention provides a vehicle power converter having a generator driven by an engine, a battery, and a step-up / down circuit, wherein the battery is used when the engine is stopped. There is provided an electric power converter for an automobile, in which the output of is applied to the neutral point of the armature winding of the generator.
【０００５】[0005]
【発明の実施の形態】本発明は、上記のような構成とす
ることにより、昇降圧回路のリアクトルを発電機の電機
子巻線のインダクタンス分で兼用でき、独立した昇降圧
回路のリアクトルを必要としない昇降圧回路とすること
ができる。BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, by adopting the above-described structure, the reactor of the step-up / down circuit can be shared by the inductance of the armature winding of the generator, and an independent step-up / down circuit reactor is required. It can be a buck-boost circuit.
【０００６】[0006]
【実施例】本発明の第１の実施例について図１を用いて
説明する。図１においてエンジン１にはエンジン１の駆
動力を伝達するベルトを介して駆動される発電機２が設
けられている。この発電機２の出力は昇降圧回路８によ
り適宜昇圧又は降圧され一定電圧に調整されインバータ
回路５に印加されている。インバータ回路５では、前記
昇降圧回路の直流電力が負荷６に必要な交流電力に変換
される。また、バッテリ３の出力が発電機２の電機子中
性点にバッテリ駆動スイッチ９を介して接続されてい
る。このバッテリ駆動スイッチ９は、エンジン１の運転
が停止中に、負荷６がオンされたときに閉となるように
制御されている。EXAMPLE A first example of the present invention will be described with reference to FIG. In FIG. 1, an engine 1 is provided with a generator 2 driven via a belt that transmits the driving force of the engine 1. The output of the generator 2 is appropriately stepped up or stepped down by the step-up / down circuit 8 and adjusted to a constant voltage and applied to the inverter circuit 5. In the inverter circuit 5, the DC power of the step-up / down circuit is converted into AC power required for the load 6. The output of the battery 3 is connected to the armature neutral point of the generator 2 via the battery-driven switch 9. The battery drive switch 9 is controlled to be closed when the load 6 is turned on while the engine 1 is stopped.
【０００７】次に、図２にて、本実施例の各構成部品の
動作を詳細に説明する。発電機２は、電機子巻線が中性
点を有するスター結線で、回転子が永久磁石の三相交流
同期発電機であり、この発電機の各相出力が昇降圧回路
８に出力されている。昇降圧回路８は、それぞれ発電機
２の各相毎にスイッチング素子８ａとサイリスタ８ｂと
ダイオード８ｃとで構成されている。この昇降圧回路８
は、リアクトルを有していないが、リアクトルは発電機
２の電機子巻線のリーケージインダクタンス分を利用す
るものである。昇降圧の制御は、周知の制御回路でスイ
ッチング素子８ａとサイリスタ８ｂとを制御しておこな
う。すなわち、電圧が目標電圧よりも高い場合はスイッ
チング素子８ａをオフにし、サイリスタ８ｂを位相角制
御動作させることにより降圧し、電圧が目標電圧よりも
低い場合は、サイリスタ８ｂをオンとして、スイッチン
グ素子８ａを数ＫＨｚ〜数十ＫＨｚでスイッチングさせ
て、前記発電機電機子巻線のリーケージインダクタンス
分により昇圧する。Next, the operation of each component of this embodiment will be described in detail with reference to FIG. The generator 2 is a three-phase AC synchronous generator in which the armature winding is a star connection having a neutral point and the rotor is a permanent magnet. The output of each phase of this generator is output to the buck-boost circuit 8. There is. The step-up / step-down circuit 8 includes a switching element 8a, a thyristor 8b, and a diode 8c for each phase of the generator 2. This step-up / down circuit 8
Does not have a reactor, but the reactor uses the leakage inductance component of the armature winding of the generator 2. The step-up / down control is performed by controlling the switching element 8a and the thyristor 8b with a well-known control circuit. That is, when the voltage is higher than the target voltage, the switching element 8a is turned off, and the thyristor 8b is stepped down by the phase angle control operation. When the voltage is lower than the target voltage, the thyristor 8b is turned on and the switching element 8a is turned on. Is switched at several KHz to several tens KHz, and the voltage is boosted by the leakage inductance of the generator armature winding.
【０００８】インバータ回路５は、負荷６により適宜最
良の回路が選択されるが、本実施例では、三相電動機を
負荷とした場合の例について記載した。この回路の構成
は、図に示したように公知の三相インバータ回路であ
る。As the inverter circuit 5, the best circuit is appropriately selected depending on the load 6, but in this embodiment, an example in which a three-phase motor is used as the load has been described. The configuration of this circuit is a known three-phase inverter circuit as shown in the figure.
【０００９】バッテリ３のプラス端子からバッテリ駆動
スイッチ９を介して発電機２の電機子巻線の中性点に接
続されており、前述したようにエンジン停止中に、負荷
６の電源が投入されたときにバッテリ駆動スイッチ９は
閉にされる。それによりバッテリ３から、発電機２の電
機子巻線を経由して昇降圧回路８に電流が供給される。
バッテリからの電圧は、１２Ｖ又は２４Ｖであり、昇圧
する必要があるので、上記のように、昇降圧回路８のサ
イリスタ８ｂをオンとして、スイッチング素子８ａを数
ＫＨｚ〜数十ＫＨｚでスイッチングさせて、発電機２の
電機子巻線のリーケージインダクタンス分により昇圧す
る。The positive terminal of the battery 3 is connected to the neutral point of the armature winding of the generator 2 through the battery-driven switch 9, and the load 6 is powered on while the engine is stopped as described above. Then, the battery-powered switch 9 is closed. As a result, current is supplied from the battery 3 to the step-up / down circuit 8 via the armature winding of the generator 2.
The voltage from the battery is 12V or 24V, and it is necessary to boost the voltage. Therefore, as described above, the thyristor 8b of the step-up / down circuit 8 is turned on and the switching element 8a is switched at several KHz to several tens KHz, The voltage is boosted by the leakage inductance of the armature winding of the generator 2.
【００１０】次に、本発明の第２の実施例について図３
を用いて説明する。図３において図２と同一のものは同
一の番号を付しここでは説明を省略する。第２の実施例
において第１の実施例と相違するのは、第２の実施例で
はバッテリ駆動スイッチ９と発電機２の中性点の間にイ
ンダクタンス１０が挿入されている点である。このイン
ダクタンス１０は、負荷６で必要とされる電力に対し発
電機２の電機子巻線のリーケージインダクタンス分が小
さく電圧の十分な昇圧が得られないときに、電機子巻線
のリーケージインダクタンス分を補い必要とされる電力
を供給し、かつ電圧の昇圧を行うことができるものであ
る。Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. 3, the same parts as those in FIG. 2 are designated by the same reference numerals, and the description thereof will be omitted here. The second embodiment differs from the first embodiment in that in the second embodiment, an inductance 10 is inserted between the battery drive switch 9 and the neutral point of the generator 2. The inductance 10 is the leakage inductance of the armature winding when the leakage inductance of the armature winding of the generator 2 is small with respect to the electric power required by the load 6 and sufficient boosting of the voltage cannot be obtained. The supplementary electric power can be supplied and the voltage can be boosted.
【００１１】[0011]
【発明の効果】本発明によれば、エンジン停止中に、負
荷の電源が投入されたときには、バッテリから、発電機
の電機子巻線の中性点に電力を供給し、昇圧を行うの
で、昇圧回路のリアクトルを発電機の電機子巻線のイン
ダクタンス分で兼用でき、独立した昇圧回路のリアクト
ルをなくすことができる。According to the present invention, when the load is powered on while the engine is stopped, power is supplied from the battery to the neutral point of the armature winding of the generator to boost the voltage. The reactor of the booster circuit can be shared by the inductance of the armature winding of the generator, and the reactor of the independent booster circuit can be eliminated.
【図１】本発明の第１の実施例を示すシステム全体図で
ある。FIG. 1 is an overall system diagram showing a first embodiment of the present invention.
【図２】本発明の第１の実施例の回路図である。FIG. 2 is a circuit diagram of the first embodiment of the present invention.
【図３】本発明の第２の実施例の回路図である。FIG. 3 is a circuit diagram of a second embodiment of the present invention.
【図４】従来の装置のシステム全体図である。FIG. 4 is an overall system diagram of a conventional device.
【図５】従来の装置のインバータ回路図である。FIG. 5 is an inverter circuit diagram of a conventional device.
１…エンジン、２…発電機、３…バッテリ、４…昇圧回
路、５…インバータ回路、６…負荷、７…リアクトル、
８…昇降圧回路、９…バッテリ駆動スイッチ、１０…イ
ンダクタンス1 ... Engine, 2 ... Generator, 3 ... Battery, 4 ... Booster circuit, 5 ... Inverter circuit, 6 ... Load, 7 ... Reactor,
8 ... Buck-boost circuit, 9 ... Battery-operated switch, 10 ... Inductance
Claims (3)
テリと、昇降圧回路とを有する自動車用電力変換装置に
おいて、 エンジン停止時には前記バッテリの出力を前記発電機の
電機子巻線の中性点に印加するようにしたことを特徴と
する自動車用電力変換装置。1. A power converter for an automobile having a generator driven by an engine, a battery, and a step-up / down circuit, wherein the output of the battery is set to a neutral point of an armature winding of the generator when the engine is stopped. An electric power converter for an automobile, characterized in that the electric power is applied to the electric power converter.
を特徴とする請求項１記載の自動車用電力変換装置。2. The power converter for a vehicle according to claim 1, wherein the generator is a permanent magnet generator.
中性点との間にインダクタンスを有することを特徴とす
る請求項１または請求項２に記載の自動車用電力変換装
置。3. The power converter for an automobile according to claim 1 or 2, wherein an inductance is provided between the battery and a neutral point of an armature winding of the generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20890395A JP3333833B2 (en) | 1995-08-16 | 1995-08-16 | Automotive power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20890395A JP3333833B2 (en) | 1995-08-16 | 1995-08-16 | Automotive power converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0956197A true JPH0956197A (en) | 1997-02-25 |
| JP3333833B2 JP3333833B2 (en) | 2002-10-15 |
Family
ID=16564041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20890395A Expired - Fee Related JP3333833B2 (en) | 1995-08-16 | 1995-08-16 | Automotive power converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3333833B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942818A (en) * | 1998-02-06 | 1999-08-24 | Isuzu Ceramics Research Institute Co., Ltd. | Control apparatus for engine-driven permanent magnet type synchronous generators |
| WO2001011765A1 (en) * | 1999-08-04 | 2001-02-15 | Westerbeke Corporation | Controlling generator power |
| JP2002233191A (en) * | 2000-12-19 | 2002-08-16 | Moteurs Leroy-Somer | Device for generating electricity from three-phase network, especially for on-road running vehicle |
| JP2006275389A (en) * | 2005-03-29 | 2006-10-12 | Osaka Gas Co Ltd | Air conditioning and power generating system |
| JP2011036028A (en) * | 2009-07-31 | 2011-02-17 | Fuji Electric Systems Co Ltd | Power converter |
| JP2012005279A (en) * | 2010-06-18 | 2012-01-05 | Fuji Electric Co Ltd | Power converter |
| US8278859B2 (en) | 2009-08-06 | 2012-10-02 | Denso Corporation | Electric motor drive device, control method of electric motor drive device, and electrically driven device |
| CN104567055A (en) * | 2014-12-12 | 2015-04-29 | 贵州永红航空机械有限责任公司 | Refrigerating system using low-voltage switch stress boosting circuit |
-
1995
- 1995-08-16 JP JP20890395A patent/JP3333833B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942818A (en) * | 1998-02-06 | 1999-08-24 | Isuzu Ceramics Research Institute Co., Ltd. | Control apparatus for engine-driven permanent magnet type synchronous generators |
| WO2001011765A1 (en) * | 1999-08-04 | 2001-02-15 | Westerbeke Corporation | Controlling generator power |
| US6624533B1 (en) | 1999-08-04 | 2003-09-23 | Westerbeke Corporation | Controlling generator power |
| JP2002233191A (en) * | 2000-12-19 | 2002-08-16 | Moteurs Leroy-Somer | Device for generating electricity from three-phase network, especially for on-road running vehicle |
| JP2006275389A (en) * | 2005-03-29 | 2006-10-12 | Osaka Gas Co Ltd | Air conditioning and power generating system |
| JP4588511B2 (en) * | 2005-03-29 | 2010-12-01 | 大阪瓦斯株式会社 | Air conditioning and power generation system |
| JP2011036028A (en) * | 2009-07-31 | 2011-02-17 | Fuji Electric Systems Co Ltd | Power converter |
| US8278859B2 (en) | 2009-08-06 | 2012-10-02 | Denso Corporation | Electric motor drive device, control method of electric motor drive device, and electrically driven device |
| JP2012005279A (en) * | 2010-06-18 | 2012-01-05 | Fuji Electric Co Ltd | Power converter |
| CN104567055A (en) * | 2014-12-12 | 2015-04-29 | 贵州永红航空机械有限责任公司 | Refrigerating system using low-voltage switch stress boosting circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3333833B2 (en) | 2002-10-15 |
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