JPH08251908A - Power converter, inverter and snubber unit - Google Patents
Power converter, inverter and snubber unitInfo
- Publication number
- JPH08251908A JPH08251908A JP7050791A JP5079195A JPH08251908A JP H08251908 A JPH08251908 A JP H08251908A JP 7050791 A JP7050791 A JP 7050791A JP 5079195 A JP5079195 A JP 5079195A JP H08251908 A JPH08251908 A JP H08251908A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- phase
- series
- power
- parallel
- 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
-
- 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
- H02M1/06—Circuits specially adapted for rendering non-conductive gas discharge tubes or equivalent semiconductor devices, e.g. thyratrons, thyristors
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
- H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
- H03K17/08148—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in composite switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Power Conversion In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自己消弧形スイッチン
グ素子を用いたインバータ等の電力変換装置の主回路構
成の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of the main circuit configuration of a power converter such as an inverter using a self-turn-off switching element.
【０００２】[0002]
【従来の技術】従来、比較的容量の大きなインバータ装
置の自己消弧形スイッチング素子に設けられるスナバ回
路の構成は、例えば、 実開昭59−149489号公報，
実開昭61−156490号公報， 実開昭62−41389号公
報， 特開昭62−217864 号公報及び 特開平5−28
4731 号公報等に開示されている。すなわち、スイッチ
ング素子と並列に、コンデンサとダイオードを直列接続
したものを設け、上記コンデンサとダイオードの接続点
と反対側の直流ラインとの間に抵抗器を接続したもので
ある。これにより、スイッチング素子のオフ時のサージ
エネルギーを上記コンデンサで吸収し、吸収したサージ
エネルギーを上記抵抗器により消費するという、有極性
のスナバ回路である。2. Description of the Related Art Conventionally, the structure of a snubber circuit provided in a self-extinguishing type switching element of an inverter device having a relatively large capacity is disclosed, for example, in Japanese Utility Model Publication No. Sho 59-149489.
Japanese Utility Model Laid-Open No. 61-156490, Japanese Utility Model Laid-Open No. 62-41389, Japanese Patent Laid-Open No. 62-217864 and Japanese Laid-Open Patent Application No. 5-28.
It is disclosed in Japanese Patent No. 4731. That is, a capacitor and a diode connected in series are provided in parallel with the switching element, and a resistor is connected between the connection point of the capacitor and the diode and a DC line on the opposite side. This is a polar snubber circuit in which the surge energy when the switching element is off is absorbed by the capacitor and the absorbed surge energy is consumed by the resistor.
【０００３】[0003]
【発明が解決しようとする課題】上記従来技術では、ス
イッチング素子のオフ時に発生するサージエネルギーを
全て上記有極性スナバ回路内のコンデンサで吸収する必
要があるため、コンデンサ容量が大きくなってしまい、
又、その吸収したエネルギーを消費する抵抗器容量も大
きくなる欠点があった。In the above prior art, since the surge energy generated when the switching element is turned off must be absorbed by the capacitor in the polar snubber circuit, the capacitance of the capacitor becomes large.
Further, there is a drawback that the capacity of the resistor that consumes the absorbed energy becomes large.
【０００４】本発明の目的は、スナバ容量を低減し、コ
ンパクトなインバータ等の電力変換装置や、そのスナバ
装置を実現することにある。An object of the present invention is to realize a compact power conversion device such as an inverter and its snubber device by reducing the snubber capacity.
【０００５】[0005]
【課題を解決するための手段】本発明は、そのある一面
において、直流電源に接続され、各相正負各アームに自
己消弧形スイッチング素子を備え、直流電力を可変電圧
・可変周波数の交流電力に変換するインバータと、上記
各アームの自己消弧形スイッチング素子にそれぞれ並列
接続された第１のコンデンサとダイオードとの直列体を
含む有極性スナバと、これら第１のコンデンサとダイオ
ードの直列接続点と反対側の前記直流電源ラインとの間
に接続された抵抗器とを備えたインバータ装置におい
て、前記直流電源の正負ライン間に、前記各相の直列の
正負アームを跨ぐようにそれぞれ並列に接続された第２
のコンデンサを備えたことを特徴とする。According to one aspect of the present invention, a direct-current power source is connected, and each phase positive / negative arm is provided with a self-extinguishing type switching element. , A polar snubber including a series body of a first capacitor and a diode connected in parallel to the self-extinguishing type switching element of each arm, and a series connection point of the first capacitor and the diode. And a resistor connected between the DC power supply line on the opposite side and a resistor, and in parallel between the positive and negative lines of the DC power supply so as to straddle the positive and negative arms of each phase in series. The second done
It is characterized by having a condenser of.
【０００６】本発明の他の一面においては、上記第１の
コンデンサとダイオードとの直列体と上記第２のコンデ
ンサの１相分を１つのパッケージに一体に収納する。In another aspect of the present invention, a series body of the first capacitor and the diode and one phase of the second capacitor are integrally housed in one package.
【０００７】[0007]
【作用】上記有極性スナバに加え第２のコンデンサを追
加することにより、スイッチング素子のオフ時に発生す
るサージエネルギーを、第１，第２のコンデンサが分担
して吸収し、上記有極性スナバ容量を低減することがで
きる。この場合、単に、第１のコンデンサの並列数を増
して容量を増やすよりも、第１，第２のコンデンサに分
割して接続，配置した方が、スイッチング素子からコン
デンサへの配線距離を縮めることができ、効果的にスナ
バ回路の各素子容量を低減し、小型軽量化できる。By adding the second capacitor in addition to the polar snubber, the surge energy generated when the switching element is turned off is absorbed by the first and second capacitors, and the polar snubber capacitance is absorbed. It can be reduced. In this case, rather than simply increasing the number of parallel first capacitors to increase the capacitance, it is better to divide and connect and arrange the first and second capacitors to reduce the wiring distance from the switching element to the capacitor. Therefore, it is possible to effectively reduce the capacitance of each element of the snubber circuit and reduce the size and weight.
【０００８】更に、上記スナバ回路内の第１のコンデン
サとダイオード及び第２のコンデンサを１つのパッケー
ジに納めてモジュール化すれば、スイッチング素子とス
ナバ回路素子との配線距離を最短にし、スナバ回路素子
の容量をより効果的に低減することができる。Furthermore, if the first capacitor, the diode, and the second capacitor in the snubber circuit are housed in one package and modularized, the wiring distance between the switching element and the snubber circuit element is minimized, and the snubber circuit element is minimized. The capacity of can be reduced more effectively.
【０００９】[0009]
【実施例】図１は本発明の一実施例によるインバータ主
回路構成図である。1 is a block diagram of an inverter main circuit according to an embodiment of the present invention.
【００１０】直流電源１，２から、平滑コンデンサ３を
介してインバータ４に直流電力を供給する。インバータ
４は、この直流電力を、可変電圧・可変周波数（ＶＶＶ
Ｆ）の交流電力に変換し、３相誘導電動機５に給電す
る。誘導電動機５は、変速機６を介してシーブ７を回転
させ、エレベーター乗りかご８とカウンターウエイト９
を昇降駆動する。DC power is supplied from the DC power supplies 1 and 2 to the inverter 4 via the smoothing capacitor 3. The inverter 4 converts this DC power into a variable voltage / variable frequency (VVV
F) is converted into AC power and is fed to the three-phase induction motor 5. The induction motor 5 rotates the sheave 7 via the transmission 6, and the elevator car 8 and the counterweight 9 are rotated.
Drive up and down.
【００１１】インバータ４は、自己消弧形スイッチング
素子、例えばIGBT101〜106により３相の正負各アームを
構成しており、これらＩＧＢＴはゲート信号発生回路１
１によってＰＷＭ制御される。The inverter 4 comprises a self-extinguishing type switching element, for example, IGBTs 101 to 106, which constitute positive and negative arms of three phases. These IGBTs are gate signal generating circuits 1.
PWM control is performed by 1.
【００１２】自己消弧形スイッチング素子には、その消
弧(オフ)時のエネルギーを吸収するスナバが必須であ
る。まず、公知の構成として、それぞれの素子１０１〜
１０６と並列に、コンデンサ２０１〜２０６とダイオー
ド３０１〜３０６の直列体が接続されている。また、こ
れら直列体の直列接続点を、反対側の直流電源ラインＮ
またはＰにそれぞれ抵抗器４０１〜４０６を介して接続
している。The self-extinguishing type switching element requires a snubber that absorbs energy when the arc is extinguished (OFF). First, as a known configuration, each of the elements 101 to
A series body of capacitors 201 to 206 and diodes 301 to 306 is connected in parallel with 106. The series connection point of these series bodies is connected to the DC power supply line N on the opposite side.
Alternatively, it is connected to P via resistors 401 to 406, respectively.
【００１３】更に本発明のこの実施例では、前記直流電
源の正負ラインＰ，Ｎ間に、前記各相の直列の正負アー
ムを跨ぐように、それぞれ並列に接続された各相ごとの
第２のコンデンサ５０１〜５０３を備えている。Further, according to this embodiment of the present invention, a second line for each phase is connected in parallel between the positive and negative lines P and N of the DC power source so as to straddle the positive and negative series arms of the respective phases. The capacitors 501 to 503 are provided.
【００１４】次に、スナバ作用を、Ｕ相を例に採って説
明する。Next, the snubber action will be described taking the U phase as an example.
【００１５】今、スイッチング素子１０１が点弧、スイ
ッチング素子１０２が消弧している状態で、スイッチン
グ素子１０１が消弧する場合を考える。スイッチング素
子１０１を流れていた電流は急激に遮断され、スイッチ
ング素子１０１の両端にはサージ電圧が発生する。する
と、同じ電圧がコンデンサ２０１とダイオード301の直
列体に印加され、ダイオード３０１は即座に導通し、上
記サージエネルギーはコンデンサ２０１へ吸収される。
すなわち、コンデンサ２０１を、図示＋，−の方向へ充
電する。このようにして吸収されたエネルギーは、その
後、スイッチング素子１０１が再びオンしたときに、コ
ンデンサ２０１(＋)→直流ラインＰ→IGBT101→交流ラ
インＵ→誘導電動機５→交流ラインＶ→IGBT104（また
は交流ラインＷ→IGBT106）→直流ラインＮ→抵抗器４
０１→コンデンサ２０１(−）を通り消費される。Now, consider a case where the switching element 101 is extinguished while the switching element 101 is ignited and the switching element 102 is extinguished. The current flowing through the switching element 101 is suddenly cut off, and a surge voltage is generated across the switching element 101. Then, the same voltage is applied to the series body of the capacitor 201 and the diode 301, the diode 301 immediately becomes conductive, and the surge energy is absorbed by the capacitor 201.
That is, the capacitor 201 is charged in the + and − directions shown. The energy absorbed in this way is then, when the switching element 101 is turned on again, capacitor 201 (+) → DC line P → IGBT 101 → AC line U → induction motor 5 → AC line V → IGBT 104 (or AC Line W → IGBT106) → DC line N → resistor 4
01 → It is consumed through the capacitor 201 (-).
【００１６】同じように、スイッチング素子１０１が消
弧、１０２が点弧している状態で、スイッチング素子１
０２が消弧すると、スイッチング素子１０２を流れてい
た電流は急激に遮断され、スイッチング素子１０２の両
端にはサージ電圧が発生する。すると、同じ電圧がコン
デンサ２０２とダイオード３０２の直列体へ印加され、
ダイオード３０２は即座に導通し、上記サージエネルギ
ーはコンデンサ２０２へ吸収される。すなわち、コンデ
ンサ２０２を、図示＋，−の方向へ充電する。このよう
にして吸収されたエネルギーは、その後、スイッチング
素子１０２が再びオンしたときに、コンデンサ２０２
（＋）→抵抗器４０２→直流ラインＰ→IGBT103→交流
ラインＶ（またはIGBT105→交流ラインＷ）→誘導電動
機５→交流ラインＵ→IGBT102 →直流ラインＮ→コンデ
ンサ２０２（−）を通り消費される。Similarly, with the switching element 101 being extinguished and the element 102 being ignited, the switching element 1
When 02 is extinguished, the current flowing through the switching element 102 is suddenly cut off, and a surge voltage is generated across the switching element 102. Then, the same voltage is applied to the series body of the capacitor 202 and the diode 302,
The diode 302 immediately conducts and the surge energy is absorbed by the capacitor 202. That is, the capacitor 202 is charged in the + and − directions shown. The energy thus absorbed is then transferred to the capacitor 202 when the switching element 102 is turned on again.
(+) → resistor 402 → DC line P → IGBT 103 → AC line V (or IGBT 105 → AC line W) → induction motor 5 → AC line U → IGBT 102 → DC line N → consumed through capacitor 202 (-) .
【００１７】ここで、上記コンデンサ２０１や２０２の
充電電圧が電源電圧を超えようとすると、いずれの場合
も、同時にコンデンサ５０１へも上記サージエネルギー
は吸収され、その後電源へ戻され、あるいは、回路配線
全体で消費される。すなわち、電源電圧を超えたコンデ
ンサ２０１の電荷は、コンデンサ２０１（＋）→コンデ
ンサ５０１→直流ラインＮ→抵抗器４０１→コンデンサ
２０１（−）を通り、コンデンサ５０１に吸収される。
一方、電源電圧を超えたコンデンサ２０２の電荷は、コ
ンデンサ２０２(＋)→抵抗器４０２→直流ラインＰ→コ
ンデンサ５０１→コンデンサ２０２（−）を通り、コン
デンサ５０１に吸収される。When the charging voltage of the capacitors 201 and 202 is about to exceed the power supply voltage, the surge energy is absorbed in the capacitor 501 at the same time and then returned to the power supply, or the circuit wiring is used. It is consumed as a whole. That is, the charge of the capacitor 201 that exceeds the power supply voltage passes through the capacitor 201 (+) → capacitor 501 → DC line N → resistor 401 → capacitor 201 (−) and is absorbed by the capacitor 501.
On the other hand, the electric charge of the capacitor 202 exceeding the power supply voltage passes through the capacitor 202 (+) → resistor 402 → DC line P → capacitor 501 → capacitor 202 (−) and is absorbed by the capacitor 501.
【００１８】コンデンサ５０１に吸収されたエネルギー
は、その後、直流電源側の平滑コンデンサ３との間で、
配線に含まれるインダクタンスとにより共振するように
して、回路配線全体に分散して消費され、消滅する。The energy absorbed in the capacitor 501 is then transferred to the smoothing capacitor 3 on the DC power supply side,
It resonates with the inductance contained in the wiring, is dispersed and consumed throughout the circuit wiring, and disappears.
【００１９】この際、コンデンサ２０１，２０２は、コ
ンデンサ５０１が吸収するエネルギー分だけ容量を低減
できることはもちろん、コンデンサ２０１，２０２の容
量を低減すればその分だけ突入電流が減るため、ダイオ
ード３０１，３０２の容量も低減できる。又、消費すべ
きエネルギーも減少するため、抵抗４０１，４０２の容
量も低減できる。At this time, the capacitors 201 and 202 can be reduced in capacity by the amount of energy absorbed by the capacitor 501, and if the capacitance of the capacitors 201 and 202 is reduced, the inrush current is reduced accordingly, and thus the diodes 301 and 302 are reduced. The capacity of can also be reduced. Also, since the energy to be consumed is reduced, the capacitance of the resistors 401 and 402 can also be reduced.
【００２０】図２は、上記コンデンサ２０１,２０２,５
０１及びダイオード３０１，３０２を、１つのパッケー
ジに納めたスナバモジュール６０１の斜視図である。こ
のモジュール６０１には、図１に示す直流端子７１１，
７２１、交流端子７３１の外、抵抗器接続端子７４１，
７５１を備えている。このようにして、各素子間の配線
距離を最短にすれば、配線のインダクタンスを低減で
き、コンデンサ５０１のエネルギー吸収が更に効果的に
行われ、各素子の容量を一段と低減できる。FIG. 2 shows the capacitors 201, 202 and 5 described above.
1 is a perspective view of a snubber module 601 in which 01 and diodes 301 and 302 are contained in one package. This module 601 has a DC terminal 711, shown in FIG.
721, AC terminal 731, resistor connection terminal 741,
It is equipped with 751. In this way, if the wiring distance between each element is minimized, the wiring inductance can be reduced, the energy absorption of the capacitor 501 can be more effectively performed, and the capacitance of each element can be further reduced.
【００２１】図３〜図５は、図１に示すインバータ装置
の構造を示す平面図，側面図及び正面図である。3 to 5 are a plan view, a side view and a front view showing the structure of the inverter device shown in FIG.
【００２２】冷却フイン８０上に、ＩＧＢＴモジュール
８１〜８３を間隔を置いて接着載置する。更に、これら
ＩＧＢＴモジュール８１〜８３の上に、それぞれスナバ
モジュール６０１〜６０３を取り付ける。具体的には、
前記スナバモジュール６０１〜６０３の３つの端子、す
なわち直流端子７１１，７２１及び交流端子７３１を利
用してねじ止めする。これにより、各スイッチング素子
とスナバの配線距離を最短にでき、スナバ容量及び寸法
を小さくすることができる。On the cooling fin 80, the IGBT modules 81 to 83 are adhesively mounted at intervals. Further, snubber modules 601 to 603 are mounted on the IGBT modules 81 to 83, respectively. In particular,
The three terminals of the snubber modules 601 to 603, that is, the DC terminals 711 and 721 and the AC terminal 731 are screwed. As a result, the wiring distance between each switching element and the snubber can be minimized, and the snubber capacitance and size can be reduced.
【００２３】スナバ抵抗器４０１〜４０６は、まとめて
抵抗器箱８４に収納され、別途冷却される。The snubber resistors 401 to 406 are put together in a resistor box 84 and cooled separately.
【００２４】[0024]
【発明の効果】本発明によれば、スナバ装置の容量を低
減できインバータ等の電力変換装置主回路をコンパクト
なものとすることができる。According to the present invention, the capacity of the snubber device can be reduced and the main circuit of the power conversion device such as an inverter can be made compact.
【図１】本発明の一実施例によるインバータ回路図であ
る。FIG. 1 is a circuit diagram of an inverter according to an embodiment of the present invention.
【図２】本発明の一実施例によるスナバモジュールの外
観斜視図である。FIG. 2 is an external perspective view of a snubber module according to an embodiment of the present invention.
【図３】本発明の一実施例によるインバータ装置の平面
図である。FIG. 3 is a plan view of an inverter device according to an embodiment of the present invention.
【図４】本発明の一実施例によるインバータ装置の側面
図である。FIG. 4 is a side view of an inverter device according to an embodiment of the present invention.
【図５】本発明の一実施例によるインバータ装置の正面
図である。FIG. 5 is a front view of an inverter device according to an embodiment of the present invention.
１，２…直流電源、４…インバータ、５…３相誘導電動
機、８１〜８３…スイッチング素子（ＩＧＢＴ）モジュ
ール、１０１〜１０６…自己消弧形スイッチング素子
（ＩＧＢＴ）、２０１〜２０６，５０１〜５０３…コン
デンサ、３０１〜３０６…ダイオード、４０１〜４０６
…抵抗器、６０１〜６０３…スナバモジュール。1, 2 ... DC power supply, 4 ... Inverter, 5 ... 3-phase induction motor, 81-83 ... Switching element (IGBT) module, 101-106 ... Self-extinguishing type switching element (IGBT), 201-206, 501-503 ... Capacitors 301 to 306 ... Diodes 401 to 406
... resistors, 601-603 ... snubber modules.
Claims (11)
素子を備えた２つのアームを各相毎に直列接続し、これ
ら直列接続点を交流端子とし、直流と交流間に電力変換
する電力変換装置において、 前記各自己消弧形スイッチング素子にそれぞれ並列接続
されたコンデンサと、 前記直流ライン間に、各相毎にそれぞれ並列に接続され
たコンデンサを備えたことを特徴とする電力変換装置。1. A power conversion system in which two arms each having a self-extinguishing type switching element are connected in series between DC lines for each phase, and these series connection points are used as AC terminals to convert power between DC and AC. A power converter comprising: a capacitor connected in parallel to each of the self-extinguishing switching elements; and a capacitor connected in parallel for each phase between the DC lines.
素子を備えた２つのアームを各相毎に直列接続し、これ
ら直列接続点を交流端子とし、直流と交流との間で電力
変換する電力変換装置において、 前記各アームにそれぞれ並列接続されたコンデンサと、 前記直流ライン間に、各相毎にそれぞれ並列に接続され
たコンデンサを備えたことを特徴とする電力変換装置。2. Two arms each having a self-extinguishing type switching element are connected in series between DC lines for each phase, and these series connection points are used as AC terminals to convert electric power between DC and AC. A power converter, comprising: a capacitor connected in parallel to each of the arms; and a capacitor connected in parallel for each phase between the DC lines.
素子を備えた２つのアームを各相毎に直列接続し、これ
ら直列接続点を交流端子とし、直流と交流との間で電力
変換する電力変換装置において、 前記各アームにそれぞれ接続されたスナバと、 前記直流電源ライン間に、各相毎にそれぞれ並列に接続
されたコンデンサを備えたことを特徴とする電力変換装
置。3. Two arms equipped with a self-extinguishing type switching element are connected in series between DC lines for each phase, and these series connection points are used as AC terminals for power conversion between DC and AC. A power converter, comprising: a snubber connected to each of the arms; and capacitors connected in parallel for each phase between the DC power supply lines.
素子を備えた２つのアームを各相毎に直列接続し、これ
ら直列接続点を交流端子とし、直流電力を可変電圧・可
変周波数の交流電力に変換するインバータ装置におい
て、 前記各アームの自己消弧形スイッチング素子にそれぞれ
並列接続されたコンデンサとダイオードとの直列体と、 これらコンデンサとダイオードの直列接続点と、その反
対側の前記直流電源ラインとの間に接続された抵抗器
と、 前記直流電源ライン間に、前記各相の直列の正負アーム
を跨ぐようにそれぞれ並列に接続された第２のコンデン
サとを備えたことを特徴とするインバータ装置。4. Two arms equipped with self-extinguishing type switching elements are connected in series between DC lines for each phase, and these series connection points are used as AC terminals, and DC power is supplied with variable voltage and variable frequency AC. In an inverter device for converting to electric power, a series body of a capacitor and a diode respectively connected in parallel to the self-extinguishing type switching element of each arm, a series connection point of these capacitors and a diode, and the DC power source on the opposite side thereof. A resistor connected between the DC power supply line and a second capacitor connected in parallel between the DC power supply line so as to straddle the series positive and negative arms of each phase. Inverter device.
ング素子を備えた２つのアームを各相毎に直列接続し、
これら直列接続点を交流端子とし、直流電力を可変電圧
・可変周波数の交流電力に変換するインバータ装置にお
いて、 上記各アームの自己消弧形スイッチング素子にそれぞれ
並列接続された有極性スナバと、 前記直流電源の正負ライン間に、前記各相の正負アーム
の有極性スナバを跨ぐようにそれぞれ並列に接続された
コンデンサとを備えたことを特徴とするインバータ装
置。5. Two arms each having a self-extinguishing type switching element are connected in series for each phase between DC power supply lines,
In the inverter device for converting DC power into AC power of variable voltage / variable frequency with these series connection points as AC terminals, a polar snubber connected in parallel to the self-extinguishing type switching element of each arm, and the DC An inverter device comprising: capacitors connected in parallel so as to straddle the polar snubbers of the positive and negative arms of each phase between the positive and negative lines of the power supply.
ング素子を備えた２つのアームを各相毎に直列接続し、
これら直列接続点を交流端子とし、直流電力を可変電圧
・可変周波数の交流電力に変換するインバータ装置にお
いて、 前記各アームの自己消弧形スイッチング素子にそれぞれ
並列接続された第１のコンデンサとダイオードとの直列
体と、これら第１のコンデンサとダイオードの直列接続
点と反対側の前記直流電源ラインとの間に接続された抵
抗器と、 前記直流電源ライン間に、前記各相の正負アームを跨ぐ
ようにそれぞれ並列に接続された第２のコンデンサと、 １相分の、前記第１のコンデンサとダイオードとの直列
体２組、及び前記第２のコンデンサとを一体に収納した
パッケージとを備えたことを特徴とするインバータ装
置。6. Two arms each provided with a self-extinguishing type switching element are connected in series for each phase between DC power supply lines,
In an inverter device for converting DC power into AC power of variable voltage / variable frequency using these series connection points as AC terminals, a first capacitor and a diode respectively connected in parallel to the self-extinguishing type switching element of each arm. A series body, a resistor connected between the series connection point of the first capacitor and the diode and the DC power supply line on the opposite side, and the positive and negative arms of each phase between the DC power supply line. As described above, each of which is connected in parallel to each other, two sets of the serial body of the first capacitor and the diode for one phase, and the package that integrally houses the second capacitor. An inverter device characterized in that
ング素子を備えた２つのアームを各相毎に直列接続し、
これら直列接続点を交流端子とし、直流電力を可変電圧
・可変周波数の交流電力に変換するインバータ装置にお
いて、 上記各アームの自己消弧形スイッチング素子にそれぞれ
並列接続され、コンデンサを含む有極性スナバ回路と、 前記直流電源ライン間に、前記各相の正負アームの有極
性スナバ回路を跨ぐようにそれぞれ並列に接続された第
２のコンデンサと、 １相分の前記有極性スナバ回路のコンデンサ及び前記第
２のコンデンサを一体に収納したパッケージとを備えた
ことを特徴とするインバータ装置。7. Two arms each having a self-extinguishing type switching element are connected in series for each phase between DC power supply lines,
In an inverter device for converting DC power into AC power of variable voltage / variable frequency using these series connection points as AC terminals, a polar snubber circuit including a capacitor, each of which is connected in parallel to the self-extinguishing type switching element of each arm. A second capacitor connected in parallel between the DC power supply lines so as to straddle the polar snubber circuits of the positive and negative arms of each phase, and a capacitor of the polar snubber circuit for one phase and the second capacitor. An inverter device comprising: a package in which the two capacitors are integrally stored.
２のダイオード及び第２のコンデンサの直列体と、この
直列体に並列接続された第３のコンデンサとを備えたこ
とを特徴とする電力変換装置用スナバ装置。8. A series body of a first capacitor, a first diode, a second diode and a second capacitor, and a third capacitor connected in parallel to the series body. Snubber device for power converters.
２のダイオード及び第２のコンデンサの直列体と、この
直列体に並列接続された第３のコンデンサと、これら直
列体と第３のコンデンサとを一体に収納するとともに、
前記直列体の両端２端子と、その各直列接続点３端子を
接続端子として外部へ取り出したパッケージを備えたこ
とを特徴とするスナバ装置。9. A series body of a first capacitor, a first diode, a second diode and a second capacitor, a third capacitor connected in parallel to the series body, and the series body and a third capacitor. While accommodating the capacitor together,
A snubber device comprising a package in which two terminals at both ends of the series body and three terminals at each series connection point are taken out as connection terminals to the outside.
チング素子を備えた２つのアームを各相毎に直列接続
し、これら直列接続点を交流端子とし、直流電力を可変
電圧・可変周波数の交流電力に変換するインバータ装置
において、 上記各アームの自己消弧形スイッチング素子にそれぞれ
接続されたスナバと、 前記１相分の２組の自己消弧形スイッチング素子を一体
に収納した第１のパッケージと、 ３相分の３つの前記第１のパッケージを取り付けた冷却
フインと、 前記直流電源ライン間に、前記各相の正負アームを跨ぐ
ようにそれぞれ並列に接続された第２のコンデンサと、 前記スナバ及び前記第２のコンデンサの１相分を一体に
収納するとともに、対応する上記第１のパッケージ上に
それぞれ取り付けられた第２のパッケージとを備えたこ
とを特徴とするインバータ装置。10. Two arms each having a self-extinguishing type switching element are connected in series between DC power supply lines for each phase, and these series connection points are used as AC terminals, and DC power of variable voltage / variable frequency is supplied. In an inverter device for converting into AC power, a first package in which a snubber connected to each self-extinguishing switching element of each arm and two sets of self-extinguishing switching elements for one phase are integrally housed. A cooling fin to which the three first packages for three phases are attached, a second capacitor connected in parallel between the DC power supply lines so as to straddle the positive and negative arms of each phase, A snubber and one phase portion of the second capacitor are integrally housed, and a second package mounted on the corresponding first package, respectively. Inverter and wherein the a.
接続される３組の抵抗器を一体に収納する第３のパッケ
ージを備えた請求項１０記載のインバータ装置。11. The inverter device according to claim 10, further comprising a third package that integrally houses three sets of resistors that are respectively connected to the second packages of the respective phases.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05079195A JP3221270B2 (en) | 1995-03-10 | 1995-03-10 | Power conversion device and snubber device |
| TW085100371A TW295743B (en) | 1995-03-10 | 1996-01-13 | |
| GB9604510A GB2298747B (en) | 1995-03-10 | 1996-03-01 | Electric power converter apparatus for converting electric power between direct current and alternating current |
| CN96104124A CN1039270C (en) | 1995-03-10 | 1996-03-08 | Electric power converter apparatus for converting electric power between dc and ac |
| KR1019960006034A KR960036260A (en) | 1995-03-10 | 1996-03-08 | Power conversion device, inverter device and snubber device |
| SG1996006803A SG67916A1 (en) | 1995-03-10 | 1996-03-08 | Electric power converter apparatus for converting electric power between direct current and alternating current |
| HK97102218A HK1000678A1 (en) | 1995-03-10 | 1997-11-21 | Electric power converter apparatus for converting electric power between direct current and alternating current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05079195A JP3221270B2 (en) | 1995-03-10 | 1995-03-10 | Power conversion device and snubber device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08251908A true JPH08251908A (en) | 1996-09-27 |
| JP3221270B2 JP3221270B2 (en) | 2001-10-22 |
Family
ID=12868636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05079195A Expired - Fee Related JP3221270B2 (en) | 1995-03-10 | 1995-03-10 | Power conversion device and snubber device |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP3221270B2 (en) |
| KR (1) | KR960036260A (en) |
| CN (1) | CN1039270C (en) |
| GB (1) | GB2298747B (en) |
| HK (1) | HK1000678A1 (en) |
| SG (1) | SG67916A1 (en) |
| TW (1) | TW295743B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11220869A (en) * | 1998-02-02 | 1999-08-10 | Toshiba Transport Eng Inc | Power converter |
| JP2000333439A (en) * | 1999-05-21 | 2000-11-30 | Toshiba Corp | Snubber circuit and power converter |
| JP2001192180A (en) * | 2000-01-07 | 2001-07-17 | Mitsubishi Electric Corp | Control device of elevator and inverter device for elevator |
| JP2004096974A (en) * | 2002-09-04 | 2004-03-25 | Yaskawa Electric Corp | Snubber module and power converter |
| JP2005012950A (en) * | 2003-06-20 | 2005-01-13 | Toshiba Mitsubishi-Electric Industrial System Corp | Semiconductor ac switch |
| JP2006271042A (en) * | 2005-03-23 | 2006-10-05 | Fuji Electric Holdings Co Ltd | Multilevel inverter |
| JP2007124769A (en) * | 2005-10-27 | 2007-05-17 | Meidensha Corp | Inverter circuit |
| JP2009077518A (en) * | 2007-09-20 | 2009-04-09 | Yaskawa Electric Corp | Power convertor |
| JPWO2008075418A1 (en) * | 2006-12-20 | 2010-04-02 | 三菱電機株式会社 | 3-level power converter |
| WO2012020664A1 (en) * | 2010-08-10 | 2012-02-16 | ナブテスコ株式会社 | Indirect matrix converter |
| JP2012210153A (en) * | 2012-08-03 | 2012-10-25 | Daikin Ind Ltd | Electric power conversion apparatus |
| WO2013005419A1 (en) * | 2011-07-04 | 2013-01-10 | 住友重機械工業株式会社 | Power converter |
| JP6488421B1 (en) * | 2018-09-12 | 2019-03-20 | 高周波熱錬株式会社 | Snubber circuit, power semiconductor module, and induction heating power supply device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO312388B1 (en) | 2000-09-29 | 2002-04-29 | Efd Induction As | High frequency inverters with high output power and resonance load |
| EP1450475A1 (en) * | 2003-02-19 | 2004-08-25 | ABB Schweiz AG | Inverter circuit with low inclination towards oscillations |
| JP4668301B2 (en) * | 2008-06-25 | 2011-04-13 | 株式会社日立製作所 | Power converter |
| JP5740986B2 (en) * | 2010-03-17 | 2015-07-01 | 株式会社安川電機 | Power converter |
| WO2012131754A1 (en) * | 2011-03-28 | 2012-10-04 | 三菱電機株式会社 | Snubber device |
| JP6102668B2 (en) * | 2013-10-03 | 2017-03-29 | 三菱電機株式会社 | Power converter |
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|---|---|---|---|---|
| US3568021A (en) * | 1969-05-15 | 1971-03-02 | Gen Electric | Low cost variable input voltage inverter with reliable commutation |
| US4112286A (en) * | 1976-06-28 | 1978-09-05 | Firing Circuits, Inc. | Power circuit for induction heating |
| US4310866A (en) * | 1979-09-28 | 1982-01-12 | Borg-Warner Corporation | Shootthrough fault protection system for bipolar transistors in a voltage source transistor inverter |
| JPS62217864A (en) * | 1986-03-14 | 1987-09-25 | Fuji Electric Co Ltd | Snubber circuit for inverter |
| NL8700918A (en) * | 1987-04-16 | 1988-11-16 | Holec Syst & Componenten | SYMMETRICAL ELECTRIC SNUBBER CIRCUIT. |
| CH674687A5 (en) * | 1987-12-07 | 1990-06-29 | Bbc Brown Boveri & Cie | |
| JP2658427B2 (en) * | 1989-01-17 | 1997-09-30 | 富士電機株式会社 | Snubber circuit of semiconductor element for power conversion and its module device |
| US5123746A (en) * | 1989-12-04 | 1992-06-23 | Kabushiki Kaisha Toshiba | Bridge type power converter with improved efficiency |
-
1995
- 1995-03-10 JP JP05079195A patent/JP3221270B2/en not_active Expired - Fee Related
-
1996
- 1996-01-13 TW TW085100371A patent/TW295743B/zh active
- 1996-03-01 GB GB9604510A patent/GB2298747B/en not_active Expired - Fee Related
- 1996-03-08 KR KR1019960006034A patent/KR960036260A/en not_active Application Discontinuation
- 1996-03-08 SG SG1996006803A patent/SG67916A1/en unknown
- 1996-03-08 CN CN96104124A patent/CN1039270C/en not_active Expired - Fee Related
-
1997
- 1997-11-21 HK HK97102218A patent/HK1000678A1/en not_active IP Right Cessation
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| JPH11220869A (en) * | 1998-02-02 | 1999-08-10 | Toshiba Transport Eng Inc | Power converter |
| JP2000333439A (en) * | 1999-05-21 | 2000-11-30 | Toshiba Corp | Snubber circuit and power converter |
| JP2001192180A (en) * | 2000-01-07 | 2001-07-17 | Mitsubishi Electric Corp | Control device of elevator and inverter device for elevator |
| JP2004096974A (en) * | 2002-09-04 | 2004-03-25 | Yaskawa Electric Corp | Snubber module and power converter |
| WO2004027966A1 (en) * | 2002-09-04 | 2004-04-01 | Kabushiki Kaisha Yaskawa Denki | Snubber module and power conversion device |
| GB2408857A (en) * | 2002-09-04 | 2005-06-08 | Yaskawa Denki Seisakusho Kk | Snubber module and power conversion device |
| GB2408857B (en) * | 2002-09-04 | 2005-11-30 | Yaskawa Denki Seisakusho Kk | Snubber module and power conversion apparatus |
| US7177128B2 (en) | 2002-09-04 | 2007-02-13 | Kabushiki Kaisha Yaskawa Denki | Snubber module and power conversion device |
| JP2005012950A (en) * | 2003-06-20 | 2005-01-13 | Toshiba Mitsubishi-Electric Industrial System Corp | Semiconductor ac switch |
| JP2006271042A (en) * | 2005-03-23 | 2006-10-05 | Fuji Electric Holdings Co Ltd | Multilevel inverter |
| JP2007124769A (en) * | 2005-10-27 | 2007-05-17 | Meidensha Corp | Inverter circuit |
| JPWO2008075418A1 (en) * | 2006-12-20 | 2010-04-02 | 三菱電機株式会社 | 3-level power converter |
| JP2009077518A (en) * | 2007-09-20 | 2009-04-09 | Yaskawa Electric Corp | Power convertor |
| WO2012020664A1 (en) * | 2010-08-10 | 2012-02-16 | ナブテスコ株式会社 | Indirect matrix converter |
| JP2012039810A (en) * | 2010-08-10 | 2012-02-23 | Nabtesco Corp | Indirect matrix converter |
| US9190924B2 (en) | 2010-08-10 | 2015-11-17 | Nabtesco Corporation | Indirect matrix converter |
| WO2013005419A1 (en) * | 2011-07-04 | 2013-01-10 | 住友重機械工業株式会社 | Power converter |
| JP2012210153A (en) * | 2012-08-03 | 2012-10-25 | Daikin Ind Ltd | Electric power conversion apparatus |
| JP6488421B1 (en) * | 2018-09-12 | 2019-03-20 | 高周波熱錬株式会社 | Snubber circuit, power semiconductor module, and induction heating power supply device |
| JP2020043710A (en) * | 2018-09-12 | 2020-03-19 | 高周波熱錬株式会社 | Snubber circuit and power semiconductor module and power supply device for induction heating |
| CN112703819A (en) * | 2018-09-12 | 2021-04-23 | 高周波热錬株式会社 | Snubber circuit, power semiconductor module, and induction heating power supply device |
| KR20210057046A (en) * | 2018-09-12 | 2021-05-20 | 고오슈우하네쓰렌 가부시기가이샤 | Snubber circuit, power semiconductor module, and induction heating power supply device |
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Also Published As
| Publication number | Publication date |
|---|---|
| GB2298747B (en) | 1997-03-19 |
| GB2298747A (en) | 1996-09-11 |
| TW295743B (en) | 1997-01-11 |
| SG67916A1 (en) | 1999-10-19 |
| GB9604510D0 (en) | 1996-05-01 |
| CN1039270C (en) | 1998-07-22 |
| KR960036260A (en) | 1996-10-28 |
| JP3221270B2 (en) | 2001-10-22 |
| HK1000678A1 (en) | 1998-04-17 |
| CN1135115A (en) | 1996-11-06 |
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