JPS6062893U - AC motor speed control device - Google Patents
AC motor speed control deviceInfo
- Publication number
- JPS6062893U JPS6062893U JP15541983U JP15541983U JPS6062893U JP S6062893 U JPS6062893 U JP S6062893U JP 15541983 U JP15541983 U JP 15541983U JP 15541983 U JP15541983 U JP 15541983U JP S6062893 U JPS6062893 U JP S6062893U
- Authority
- JP
- Japan
- Prior art keywords
- current
- motor
- value
- inverter
- command value
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の制御装置を示すブロック図、第２図は電
流指令の波形を示す図、第３図は従来装置におけるモー
タ高速回転時の電流波形を示す図、第４図は従来装置に
おいてインバータに印加する直流電圧値を低減した場合
のモータ低速回転時における電流を示す波形図、第５図
は同じくインバータに印加する直流電圧が一定の場合の
電流波形図、第６図は本考案に係る交流モータの変速制
御装置の一実施例を示すブロック図、第７図は同装置に
おける通流率調節器の構成を示すブロック図、第８図は
同じく通流率調節器の動作を示す波形図、第９図は同実
施例装置におけるモータ高速回転時の電流波形図、第１
０図は同じくモータ低速回転時の電流波形図である。
１・・・トルク指令機、２・・・交流モータ、３・・・
パルス発生器、５・・・マイクロコンピュータ、６・・
・Ｎ流検出器、８・・・ＰＷＭ回路、９・・・ドライバ
回路、１０・・・インバータ、１１・・・バッテリ、１
８．１９・・・ヒステリスコンパレータ、２０・・・直
流電圧調整器、３０・・・電流調節器。
第７図
第９図 −−Figure 1 is a block diagram showing a conventional control device, Figure 2 is a diagram showing the waveform of the current command, Figure 3 is a diagram showing the current waveform when the motor rotates at high speed in the conventional device, and Figure 4 is a diagram showing the current waveform in the conventional device. A waveform diagram showing the current when the motor rotates at low speed when the DC voltage value applied to the inverter is reduced. Figure 5 is a current waveform diagram when the DC voltage applied to the inverter is also constant. Figure 6 is a diagram showing the current waveform when the DC voltage applied to the inverter is constant. A block diagram showing an embodiment of the speed change control device for an AC motor, FIG. 7 is a block diagram showing the configuration of a conduction rate regulator in the same device, and FIG. 8 is a waveform showing the operation of the conduction rate adjuster. Figure 9 is a current waveform diagram when the motor rotates at high speed in the same embodiment device.
Similarly, Figure 0 is a current waveform diagram when the motor rotates at low speed. 1... Torque command machine, 2... AC motor, 3...
Pulse generator, 5... Microcomputer, 6...
・N current detector, 8...PWM circuit, 9...driver circuit, 10...inverter, 11...battery, 1
8.19... Hysteresis comparator, 20... DC voltage regulator, 30... Current regulator. Figure 7 Figure 9 --
Claims (1)
令値を算出する演算回路と； 直流電源から供給される直流電圧を直／交変換して交流
モータへ与えるインバータと；前記交流モータへ与えら
れる電流を検出する電流検出器と； 前記交流モータの回転速度を検出する回転速度検出器と
； 前記検出された電流値が；前記電流指令値の上下に設定
された第１、第２の閾値の間にあるように前記指令値電
流を調節する電流調節器と；前記電流調節器を介して得
られる指令値電流に対応して前記インバータを駆動する
駆動回路と；前記交流モータの回転速度の変化に対応し
て、前記インバータに与えられる直流電圧値と前記第１
、第２の閾値の間隔とを可変制御する電流波形制御回路
とを備えることを特徴とする交流モータの変速制御装置
。[Scope of claim for utility model registration] An arithmetic circuit that calculates a command value of current to be applied to an AC motor in response to an external command; DC/AC conversion of DC voltage supplied from a DC power source and applied to the AC motor an inverter; a current detector that detects the current applied to the AC motor; a rotation speed detector that detects the rotation speed of the AC motor; the detected current value; is set above or below the current command value; a current regulator that adjusts the command value current so that it is between first and second threshold values; a drive circuit that drives the inverter in response to the command value current obtained via the current regulator; ; In response to a change in the rotational speed of the AC motor, the DC voltage value applied to the inverter and the first
, and a current waveform control circuit that variably controls the interval between the second threshold value and the second threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15541983U JPS6062893U (en) | 1983-10-06 | 1983-10-06 | AC motor speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15541983U JPS6062893U (en) | 1983-10-06 | 1983-10-06 | AC motor speed control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6062893U true JPS6062893U (en) | 1985-05-02 |
Family
ID=30343266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15541983U Pending JPS6062893U (en) | 1983-10-06 | 1983-10-06 | AC motor speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6062893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01155027A (en) * | 1987-12-11 | 1989-06-16 | Isuzu Motors Ltd | Voltage control device of rotary electric machine for turbocharger |
-
1983
- 1983-10-06 JP JP15541983U patent/JPS6062893U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01155027A (en) * | 1987-12-11 | 1989-06-16 | Isuzu Motors Ltd | Voltage control device of rotary electric machine for turbocharger |
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