CN201107394Y - Electrical signal insulating testing apparatus of permanent magnetism synchronous electric machine - Google Patents
Electrical signal insulating testing apparatus of permanent magnetism synchronous electric machine Download PDFInfo
- Publication number
- CN201107394Y CN201107394Y CNU2007201990540U CN200720199054U CN201107394Y CN 201107394 Y CN201107394 Y CN 201107394Y CN U2007201990540 U CNU2007201990540 U CN U2007201990540U CN 200720199054 U CN200720199054 U CN 200720199054U CN 201107394 Y CN201107394 Y CN 201107394Y
- Authority
- CN
- China
- Prior art keywords
- current
- circuit
- full
- voltage
- filter circuit
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The utility model relates to an electric signal isolating and detecting circuit device of a permanent magnetic synchronous motor, which consists of a current signal detecting circuit and a voltage signal detecting circuit, wherein the current signal detecting circuit includes an HALL current sensor, a current transformer and a full-bridge rectifying filter circuit; the alternating current is rectified into direct current by the full-bridge rectifying filter circuit and then output after the current transformer changes the current; the voltage signal detecting circuit includes a liner optocoupler and a transmittal conditioning circuit which are connected; the liner optocoupler is connected with the output of the full-bridge rectifying filter circuit, so as to isolate the heavy and weak current, conduct voltage processing to the heavy current and output the current to the transmittal conditioning circuit, thus labeling the voltage amplitude. The technical proposal provides an electric signal isolating and detecting circuit device of a permanent magnetic synchronous motor with good thermal stability, high signal recovery rate, small interference, and capable of ensuring full isolation of heavy and weak current in the system.
Description
Technical field
The utility model relates to the electrical signal detection of permagnetic synchronous motor, particularly a kind of permagnetic synchronous motor electric signal isolation testing circuit device.
Background technology
Input is most important to motor-driven.The current detecting link comprises exchanging the detection of inlet wire, dc bus (DC BUS) electric current, inverter output current.The voltage detecting link mainly detects DC bus-bar voltage.This partial circuit is mainly finished two functions: 1) to the amplification and the filtering of electric current, voltage signal; 2) finish signal from bipolarity to unipolar conversion.The existing serious interference that is used for that permagnetic synchronous motor electrical signal detection circuit arrangement thermal stability is bad, the signal restoring degree is low, introduces can not guarantee that strong and weak electricity is isolated fully in the system.
Summary of the invention
The purpose of this utility model be to solve above-mentionedly existingly be used for that permagnetic synchronous motor electrical signal detection circuit arrangement thermal stability is bad, the problem of the serious interference of signal restoring degree height, introducing, provide the interference of a kind of Heat stability is good, signal restoring degree height, introducing little, can guarantee the Permanent Magnet Synchronous Motor Signal Detection Device Isolation that strong and weak electricity is isolated fully in the system.
Realize that the object of the invention technical scheme is: a kind of Permanent Magnet Synchronous Motor Signal Detection Device Isolation, form by current signal detection circuit and voltage signal testing circuit, wherein,
Described current signal detection circuit, comprise HALL current sensor, current transformer and full-bridge rectification filter circuit, described HALL current sensor is connected with alternating current, detect described AC current signal, one end of described current transformer links to each other with alternating current, the other end is connected with described full-bridge rectification filter circuit, alternating current through described current transformer carry out electric current change after described full-bridge rectification filter circuit export after being rectified into direct current;
Described voltage signal testing circuit, the linear optical coupling and the amplifier modulate circuit that comprise connection, described linear optical coupling is connected with the output terminal of described full-bridge rectification filter circuit, is used to isolate strong and weak electricity, and forceful electric power is carried out exporting to after voltage is handled described amplifier modulate circuit carry out the voltage magnitude demarcation.
Owing to adopted above-mentioned technical solution, efficiently solve and existingly be used for that permagnetic synchronous motor electrical signal detection circuit arrangement thermal stability is bad, the serious interference of signal restoring degree height, introducing, can not guarantee the problem that system's strong and weak electricity is isolated fully, provide the interference of a kind of Heat stability is good, signal restoring degree height, introducing little, can guarantee the Permanent Magnet Synchronous Motor Signal Detection Device Isolation that strong and weak electricity is isolated fully in the system.
Description of drawings
Fig. 1 is the current detection circuit synoptic diagram of the utility model permagnetic synchronous motor electrical signal detection spacer assembly;
Fig. 2 is the voltage detecting circuit synoptic diagram of the utility model permagnetic synchronous motor electrical signal detection spacer assembly.
Embodiment
The utility model is described in further detail below in conjunction with drawings and embodiments.
With reference to Fig. 1 and 2, a kind of Permanent Magnet Synchronous Motor Signal Detection Device Isolation is characterized in that, form by current signal detection circuit and voltage signal testing circuit, wherein,
Described current signal detection circuit, comprise HALL current sensor (not shown), current transformer 1 and full-bridge rectification filter circuit 2, described HALL current sensor is connected with alternating current, detect described AC current signal, one end of described current transformer 1 links to each other with alternating current, the other end is connected with described full-bridge rectification filter circuit 2, alternating current through described current transformer 1 carry out electric current change after described full-bridge rectification filter circuit 2 export after being rectified into direct current;
Described voltage signal testing circuit, the linear optical coupling 4 and the amplifier modulate circuit 5 that comprise connection, described linear optical coupling 4 is connected with the output terminal of described full-bridge rectification filter circuit 2, be used to isolate strong and weak electricity, and forceful electric power carried out exporting to after voltage is handled described amplifier modulate circuit 5 carry out the voltage magnitude demarcation.
Preferably, described HALL current sensor is 2.
Further, be connected divider resistance 3 between the output terminal of described linear optical coupling 4 and described full-bridge rectification filter circuit 2, be used for will input the DC voltage dividing potential drop.
Foregoing circuit is mainly finished two functions: 1) to the amplification and the filtering of electric current, voltage signal; 2) finish signal from bipolarity to unipolar conversion.The voltage detecting link mainly detects DC bus-bar voltage.The interference of circuit Heat stability is good, signal restoring degree height, introducing is little, can guarantee that strong and weak electricity is isolated fully in the system.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (3)
1, a kind of Permanent Magnet Synchronous Motor Signal Detection Device Isolation is characterized in that, form by current signal detection circuit and voltage signal testing circuit, wherein,
Described current signal detection circuit, comprise HALL current sensor, current transformer and full-bridge rectification filter circuit, described HALL current sensor is connected with alternating current, detect described AC current signal, one end of described current transformer links to each other with alternating current, the other end is connected with described full-bridge rectification filter circuit, alternating current through described current transformer carry out electric current change after described full-bridge rectification filter circuit export after being rectified into direct current;
Described voltage signal testing circuit, the linear optical coupling and the amplifier modulate circuit that comprise connection, described linear optical coupling is connected with the output terminal of described full-bridge rectification filter circuit, is used to isolate strong and weak electricity, and forceful electric power is carried out exporting to after voltage is handled described amplifier modulate circuit carry out the voltage magnitude demarcation.
2, Permanent Magnet Synchronous Motor Signal Detection Device Isolation as claimed in claim 1 is characterized in that, described HALL current sensor is 2.
3, Permanent Magnet Synchronous Motor Signal Detection Device Isolation as claimed in claim 1 is characterized in that, is connected divider resistance between the output terminal of described linear optical coupling and described full-bridge rectification filter circuit, be used for will input the DC voltage dividing potential drop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201990540U CN201107394Y (en) | 2007-12-10 | 2007-12-10 | Electrical signal insulating testing apparatus of permanent magnetism synchronous electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201990540U CN201107394Y (en) | 2007-12-10 | 2007-12-10 | Electrical signal insulating testing apparatus of permanent magnetism synchronous electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107394Y true CN201107394Y (en) | 2008-08-27 |
Family
ID=39959203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201990540U Expired - Fee Related CN201107394Y (en) | 2007-12-10 | 2007-12-10 | Electrical signal insulating testing apparatus of permanent magnetism synchronous electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107394Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738536B (en) * | 2008-11-21 | 2011-07-20 | 上海电机学院 | Device and method for quantizing current measurement value of permanent magnet synchronous motor |
| CN101927785B (en) * | 2009-06-26 | 2012-08-08 | 上海联盛汽车电子有限公司 | Electric power-assisted steering system with PMSM current sensor error self-correcting function |
| CN102707127A (en) * | 2012-05-29 | 2012-10-03 | 长沙奥托自动化技术有限公司 | Simplified type alternating-current zero-crossing detecting and amplitude value sampling unit |
| CN102709977A (en) * | 2012-06-01 | 2012-10-03 | 常州鹰飞电子科技有限公司 | Solar power generation system controller with alternating current detection control unit |
| CN102947713A (en) * | 2010-01-28 | 2013-02-27 | 马克西姆综合产品公司 | Isolated current sensor with codec |
| CN104459291A (en) * | 2014-12-15 | 2015-03-25 | 南车株洲电力机车有限公司 | Method and system for detecting AC signals of specific frequency |
| CN107091987A (en) * | 2017-06-14 | 2017-08-25 | 东华大学 | A kind of Voltage Feedback system of automobile window motor performance test |
| CN107420292A (en) * | 2017-05-11 | 2017-12-01 | 国网江苏省电力公司检修分公司 | A kind of foolproof pulsating pump and its control method |
-
2007
- 2007-12-10 CN CNU2007201990540U patent/CN201107394Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738536B (en) * | 2008-11-21 | 2011-07-20 | 上海电机学院 | Device and method for quantizing current measurement value of permanent magnet synchronous motor |
| CN101927785B (en) * | 2009-06-26 | 2012-08-08 | 上海联盛汽车电子有限公司 | Electric power-assisted steering system with PMSM current sensor error self-correcting function |
| CN102947713A (en) * | 2010-01-28 | 2013-02-27 | 马克西姆综合产品公司 | Isolated current sensor with codec |
| CN102707127A (en) * | 2012-05-29 | 2012-10-03 | 长沙奥托自动化技术有限公司 | Simplified type alternating-current zero-crossing detecting and amplitude value sampling unit |
| CN102709977A (en) * | 2012-06-01 | 2012-10-03 | 常州鹰飞电子科技有限公司 | Solar power generation system controller with alternating current detection control unit |
| CN104459291A (en) * | 2014-12-15 | 2015-03-25 | 南车株洲电力机车有限公司 | Method and system for detecting AC signals of specific frequency |
| CN107420292A (en) * | 2017-05-11 | 2017-12-01 | 国网江苏省电力公司检修分公司 | A kind of foolproof pulsating pump and its control method |
| CN107091987A (en) * | 2017-06-14 | 2017-08-25 | 东华大学 | A kind of Voltage Feedback system of automobile window motor performance test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201107394Y (en) | Electrical signal insulating testing apparatus of permanent magnetism synchronous electric machine | |
| CN201724988U (en) | Input phase failure detector for power unit of high-voltage frequency converter | |
| CN202710692U (en) | Single-phase alternating current load connection and disconnection detection circuit | |
| CN102944804B (en) | Overhead line fault detection system | |
| CN104166072B (en) | The intelligent device for detecting polarity of four star-like voltage transformers and detection method | |
| CN102130487A (en) | Portable charger for electric vehicle and design method thereof | |
| CN105245126A (en) | Teaching inverter system module | |
| CN103499805A (en) | Detection device compatible with three-phase intelligent electric energy meter and type-III special transform acquisition terminal | |
| CN204789932U (en) | Air switch state detection device , air switch and air switch state detecting system | |
| CN101170283A (en) | A voltage self-adapted commutation circuit | |
| CN103576034B (en) | The pick-up unit of charger power module | |
| CN201141909Y (en) | Electric signal non-isolation testing apparatus of permanent magnet synchronization motor | |
| CN207069930U (en) | A kind of three-phase input lack detection circuit | |
| CN202256445U (en) | Voltage detection circuit | |
| CN203849585U (en) | Microcomputer protection device switching value detection circuit | |
| CN205594111U (en) | Leakage detection appearance based on rogowski coil | |
| CN105992416B (en) | Electromagnetic heating control circuit and electromagnetic heating apparatus | |
| CN107817463A (en) | A kind of electricity anti-theft method for detecting short circuit electric energy meter | |
| CN105486936B (en) | Uninterrupted power supply with lack zero line detection circuitry | |
| CN107294403A (en) | A kind of three-phase input lack detection circuit | |
| CN207198274U (en) | Detect the device of differential protection for generator polarity | |
| CN204425027U (en) | A kind of Intelligent UPS system | |
| CN201867462U (en) | Winding polarity test device | |
| CN205464786U (en) | High -frequency induction welding power for refrigerator | |
| CN207095733U (en) | A kind of temperature measuring equipment based on induction type power taking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Neles Valve Co. Ltd. James beure. Assignor: Shanghai Electrical Group Co., Ltd. Contract fulfillment period: 2008.11.16 to 2013.11.15 Contract record no.: 2008310000243 Denomination of utility model: Electrical signal insulating testing apparatus of permanent magnetism synchronous electric machine Granted publication date: 20080827 License type: Exclusive license Record date: 20081125 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.16 TO 2013.11.15; CHANGE OF CONTRACT Name of requester: SHANGHAI NAILAISI.ZHANMUSIBOLEI VALVE CO., LTD. Effective date: 20081125 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |