JPH0443399U - - Google Patents
Info
- Publication number
- JPH0443399U JPH0443399U JP8556990U JP8556990U JPH0443399U JP H0443399 U JPH0443399 U JP H0443399U JP 8556990 U JP8556990 U JP 8556990U JP 8556990 U JP8556990 U JP 8556990U JP H0443399 U JPH0443399 U JP H0443399U
- Authority
- JP
- Japan
- Prior art keywords
- value
- control section
- synchronous motor
- current control
- signal
- 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
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は従来の同期電動機の制御装置を示すブロ
ツク図、第３図は実施例が適用される同期電動機
の特性を表した図である。
１……インバータ装置、２……同期電動機、３
……回転数指令器、７……電流制御部、８……ゲ
ート制御部、９……脱調検出設定器、１０……脱
調検出装置。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing a conventional synchronous motor control device, and FIG. 3 is a diagram showing the characteristics of the synchronous motor to which the embodiment is applied. 1...Inverter device, 2...Synchronous motor, 3
... Rotation speed command device, 7 ... Current control section, 8 ... Gate control section, 9 ... Step-out detection setting device, 10 ... Step-out detection device.
Claims (1)
インバータ装置を有し、回転数指令信号に基づく
電流指令値と前記同期電動機の電流検出値との偏
差を得、この偏差値を電流制御部およびゲート制
御部を介して前記インバータ装置を制御するもの
において、 脱調検出設定器を設け、該脱調検出設定器の設
定信号と前記電流制御部の出力信号とを比較し、
前記設定信号の設定値を平常運転時には前記電流
制御部の出力信号より大で、脱調時には小となる
値に設定し、この比較結果値より脱調の有無を検
出するようにしたことを特徴とする同期電動機の
脱調検出装置。[Claims for Utility Model Registration] It has a synchronous motor and an inverter device for operating the synchronous motor, and obtains a deviation between a current command value based on a rotational speed command signal and a detected current value of the synchronous motor, and In the device that controls the inverter device using a value via a current control section and a gate control section, a step-out detection setting device is provided, and a setting signal of the step-out detection setting device is compared with an output signal of the current control section. ,
The set value of the setting signal is set to a value that is larger than the output signal of the current control section during normal operation, and smaller when the step is out, and the presence or absence of the step out is detected from the comparison result value. Out-of-step detection device for a synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8556990U JP2557115Y2 (en) | 1990-08-13 | 1990-08-13 | Synchronous motor step-out detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8556990U JP2557115Y2 (en) | 1990-08-13 | 1990-08-13 | Synchronous motor step-out detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0443399U true JPH0443399U (en) | 1992-04-13 |
| JP2557115Y2 JP2557115Y2 (en) | 1997-12-08 |
Family
ID=31634781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8556990U Expired - Lifetime JP2557115Y2 (en) | 1990-08-13 | 1990-08-13 | Synchronous motor step-out detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2557115Y2 (en) |
-
1990
- 1990-08-13 JP JP8556990U patent/JP2557115Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2557115Y2 (en) | 1997-12-08 |
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