JPH0583802A - Inverter unit - Google Patents
Inverter unitInfo
- Publication number
- JPH0583802A JPH0583802A JP3239325A JP23932591A JPH0583802A JP H0583802 A JPH0583802 A JP H0583802A JP 3239325 A JP3239325 A JP 3239325A JP 23932591 A JP23932591 A JP 23932591A JP H0583802 A JPH0583802 A JP H0583802A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- pulse mode
- pulse
- vehicle
- unit
- 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.)
- Pending
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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Abstract
(57)【要約】
【目的】可変電圧可変周波数インバータにより誘導電動
機を駆動する電気車の制御装置に関して、電動機の振動
に起因する車内での振動騒音の低減を図る。
【構成】スイッチング素子１及びゲートドライブ装置６
による主回路部、及びそれらを制御するゲート論理部か
らなる。ゲート論理部の中で同期ＰＷＭ制御に関するも
のは、パルスモード切替制御部２，変調率演算部３，同
期パルスデータ記憶部４及びゲートパルス発生部５から
構成される。
【効果】本発明によれば、インバータのＰＷＭ制御時の
パルスモードの設定により、車内での騒音低減を図るこ
とができる。
(57) [Abstract] [Purpose] With respect to a control device for an electric vehicle that drives an induction motor by a variable voltage variable frequency inverter, to reduce vibration noise in the vehicle due to vibration of the electric motor. [Structure] Switching element 1 and gate drive device 6
, And a gate logic unit for controlling them. The gate logic unit related to the synchronous PWM control is composed of a pulse mode switching control unit 2, a modulation rate calculation unit 3, a synchronous pulse data storage unit 4, and a gate pulse generation unit 5. According to the present invention, noise in the vehicle can be reduced by setting the pulse mode during PWM control of the inverter.
Description
【０００１】[0001]
【産業上の利用分野】本発明はインバータ制御車の車内
での振動騒音の低減を図るためのＰＷＭ制御方式に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PWM control system for reducing vibration noise inside an inverter-controlled vehicle.
【０００２】[0002]
【従来の技術】従来、インバータ制御車は、低速では非
同期式、高速では同期式に切り替えたＰＷＭ制御を行な
っている。同期式におけるパルスモードは、最大スイッ
チング周波数を上回らない範囲内で安定した電動機制御
を行なうという点で設定している。最大スイッチング周
波数は、スイッチング素子の性能および素子を冷却する
冷媒や冷却器の冷却能力，スナバ回路の容量等から決ま
るものである。2. Description of the Related Art Conventionally, an inverter control vehicle performs PWM control by switching to an asynchronous type at a low speed and a synchronous type at a high speed. The pulse mode in the synchronous system is set in that stable motor control is performed within a range that does not exceed the maximum switching frequency. The maximum switching frequency is determined by the performance of the switching element, the cooling capacity of the refrigerant for cooling the element, the cooling capacity of the cooler, the capacity of the snubber circuit, and the like.
【０００３】一般的なパルスモードとして、電気学会技
術報告（II部）第３２５号，２６頁，５．７図に記載の
とおり、インバータ周波数の上昇に応じて、４５−２７
−２１−１５−９−５−３−１と切り替える方式が示さ
れている。As a general pulse mode, as described in Technical Report of the Institute of Electrical Engineers of Japan (Part II) No. 325, page 26, FIG. 5.7, 45-27 depending on the increase of the inverter frequency.
The method of switching to -21-15-9-5-3-1 is shown.
【０００４】図１はインバータ制御システムの中におい
て、同期ＰＷＭ制御に関するブロックを示したものであ
る。主回路部とゲート論理部から構成されており、１は
スイッチング素子を示す。インバータ周波数ｆinv とフ
ィルタコンデンサ電圧Ｅcfがパルスモード切替制御部２
及び変調率演算部３に入力されると、パルスモードと切
り替えのタイミング及び変調率が決定される。同期パル
スデータ記憶部４には、パルスモードに対応したオンオ
フのパターンデータが記憶されている。パルスモードに
対応したオンオフのパターンはこの４の中に記憶されて
いる。４からは切り替えのタイミング及び変調率に応じ
て、ゲートパルス発生部５に対しオンオフの指令を出力
する。この５からの出力を主回路部のゲートドライブ装
置６が受けて、スイッチング素子１をオンオフ制御す
る。FIG. 1 shows a block relating to synchronous PWM control in an inverter control system. It is composed of a main circuit section and a gate logic section, and 1 indicates a switching element. The inverter frequency finv and the filter capacitor voltage Ecf are the pulse mode switching control unit 2
And the modulation rate calculation unit 3, the pulse mode, the switching timing, and the modulation rate are determined. The sync pulse data storage unit 4 stores ON / OFF pattern data corresponding to the pulse mode. The on / off pattern corresponding to the pulse mode is stored in this 4. 4 outputs an on / off command to the gate pulse generator 5 according to the switching timing and the modulation rate. The gate drive device 6 in the main circuit section receives the output from the circuit 5 and controls the switching element 1 to turn on and off.
【０００５】[0005]
【発明が解決しようとする課題】インバータ装置により
制御される誘導電動機にはＰＷＭ電圧が印加されるた
め、その高調波成分により原理的にトルク脈動が生じ、
これにより振動が発生する。振動の周波数はスイッチン
グ周波数に密接しており、理論的にその整数倍で与えら
れる。一方、電動機から台車そして車体への振動伝達経
路では、固有な機械的共振点があり、その共振周波数と
同一周波数の振動成分が存在すると、増幅されて車内へ
伝わり、騒音の増大を招く結果となる。Since the PWM voltage is applied to the induction motor controlled by the inverter device, torque pulsation is generated in principle due to its harmonic component.
This causes vibration. The frequency of vibration is close to the switching frequency, and is theoretically given as an integral multiple. On the other hand, in the vibration transmission path from the electric motor to the bogie and the vehicle body, there is an inherent mechanical resonance point, and if there is a vibration component of the same frequency as the resonance frequency, it will be amplified and transmitted to the inside of the vehicle, resulting in increased noise. Become.
【０００６】従来技術では、機械系の共振周波数を考慮
してパルスモードを選定していなかったため、共振現象
による騒音の増大を招くパルスモードが発生した。In the prior art, since the pulse mode was not selected in consideration of the resonance frequency of the mechanical system, a pulse mode which causes an increase in noise due to the resonance phenomenon occurred.
【０００７】本発明の目的は共振現象により騒音の増大
が発生したパルスモードに対して別のパルスモードを採
用し、騒音の低減を図ることにある。An object of the present invention is to reduce the noise by adopting another pulse mode for the pulse mode in which the noise is increased due to the resonance phenomenon.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明は従来のパルスモードの選定方法に加えて、
実測等により車体の機械的共振点を把握し、スイッチン
グ周波数およびその整数倍の周波数成分がその領域に入
らないようにパルスモードを設定する。In order to achieve the above-mentioned object, the present invention, in addition to the conventional pulse mode selection method,
The mechanical resonance point of the vehicle body is grasped by actual measurement, etc., and the pulse mode is set so that the switching frequency and the frequency component of an integral multiple thereof do not fall into the region.
【０００９】[0009]
【作用】車体の機械的共振点を考慮したパルスモードの
設定によって、電動機の振動成分を車体へ伝搬しにくい
方向へもっていき、車体本来の振動に対する遮蔽効果を
有効に働かせて、車内における振動騒音の低減に効果を
発揮する。[Function] By setting the pulse mode in consideration of the mechanical resonance point of the vehicle body, the vibration component of the electric motor is moved to the direction in which it is difficult to propagate to the vehicle body, and the shielding effect against the original vibration of the vehicle body is effectively exerted, and the vibration noise in the vehicle Is effective in reducing
【００１０】[0010]
【実施例】図２にパルスモード設定例を示す。斜線部は
車体の機械的共振周波数領域を表わしたもので、図示の
とおり従来制御時の９パルス，５パルスモードにおいて
スイッチング周波数が共振周波数領域を通過し、実際に
現車において振動騒音が増大する現象がみられた。これ
を回避するために９パルスに代わって１１パルスを、５
パルスに代わって７パルスモードを採用することにより
共振周波数領域を回避させ、騒音の低減を図る。EXAMPLE FIG. 2 shows an example of pulse mode setting. The shaded area represents the mechanical resonance frequency range of the vehicle body. As shown in the figure, the switching frequency passes through the resonance frequency range in the 9-pulse and 5-pulse modes during conventional control, and vibration noise actually increases in the actual vehicle. There was a phenomenon. In order to avoid this, instead of 9 pulse, 11 pulse is 5
By adopting the 7-pulse mode instead of the pulse, the resonance frequency region is avoided and noise is reduced.
【００１１】[0011]
【発明の効果】本発明によれば、インバータのＰＷＭ制
御時のパルスモードの設定により車内での騒音低減を図
ることができる。According to the present invention, the noise in the vehicle can be reduced by setting the pulse mode during the PWM control of the inverter.
【図１】インバータの周期ＰＭＷ制御ブロック図。FIG. 1 is a block diagram of a cycle PMW control of an inverter.
【図２】本発明による一実施例のスイッチング周波数−
インバータ周波数特性図。FIG. 2 is a switching frequency of an embodiment according to the present invention-
Inverter frequency characteristic diagram.
１…スイッチング素子、２…パルスモード切替制御部、
５…ゲートパルス発生部。1 ... Switching element, 2 ... Pulse mode switching control unit,
5 ... Gate pulse generator.
Claims (2)
電動機を駆動する電気車に係り、 ＰＷＭ制御時のインバータのスイッチング周波数の整数
倍が、電動係，駆動装置，牽引力伝達装置を含む電動機
から車体までの牽引力伝達機構の機械的共振点と一致し
ない様に、パルスモードを設定したことを特徴とするイ
ンバータ装置。1. An electric vehicle for driving an induction motor with a variable voltage variable frequency inverter, wherein an integer multiple of a switching frequency of the inverter during PWM control is applied from a motor including a motor, a driving device and a traction force transmitting device to a vehicle body. An inverter device in which a pulse mode is set so as not to coincide with a mechanical resonance point of a traction force transmission mechanism.
なくとも１１パルスまたは７パルスを含んだインバータ
装置。2. The inverter device according to claim 1, wherein the synchronous pulse mode includes at least 11 pulses or 7 pulses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3239325A JPH0583802A (en) | 1991-09-19 | 1991-09-19 | Inverter unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3239325A JPH0583802A (en) | 1991-09-19 | 1991-09-19 | Inverter unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0583802A true JPH0583802A (en) | 1993-04-02 |
Family
ID=17043042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3239325A Pending JPH0583802A (en) | 1991-09-19 | 1991-09-19 | Inverter unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0583802A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019068493A (en) * | 2017-09-28 | 2019-04-25 | トヨタ自動車株式会社 | Driving device |
| JP2021191158A (en) * | 2020-06-02 | 2021-12-13 | 株式会社Subaru | Control device |
-
1991
- 1991-09-19 JP JP3239325A patent/JPH0583802A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019068493A (en) * | 2017-09-28 | 2019-04-25 | トヨタ自動車株式会社 | Driving device |
| JP2021191158A (en) * | 2020-06-02 | 2021-12-13 | 株式会社Subaru | Control device |
| US11909344B2 (en) | 2020-06-02 | 2024-02-20 | Subaru Corporation | Control device |
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