CN103107508A - Insulation monitoring and protecting control device and method for multichannel underwater motor power supply loop - Google Patents
Insulation monitoring and protecting control device and method for multichannel underwater motor power supply loop Download PDFInfo
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- CN103107508A CN103107508A CN2011103599463A CN201110359946A CN103107508A CN 103107508 A CN103107508 A CN 103107508A CN 2011103599463 A CN2011103599463 A CN 2011103599463A CN 201110359946 A CN201110359946 A CN 201110359946A CN 103107508 A CN103107508 A CN 103107508A
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Abstract
The invention relates to the technique of underwater motor power supply loop detecting and protecting, in particular to an insulation monitoring and protecting control device and a method for a multichannel underwater motor power supply loop. An insulation monitor is connected with an insulation detecting switching device, the insulation detecting switching device is connected with a plurality of underwater motor power supply loops, and the insulation monitor is formed by the connection of an insulation detecting switching circuit and an insulation protecting circuit through a microprogrammed control unit (MCU). The underwater motor power supply loop comprises a motor, a power supply, a control motor and a shunt excitation coil used for the opening or closing of the power supply. By means of the insulation monitoring and protecting control device and the method for the multichannel underwater motor power supply loop, the usage cost is cut down greatly, and a lot of installation space is saved. MCU control is adopted by the insulation detecting switching circuit, the expandability is strong, a user is enabled to write programs to expand the system function, and thereby the expandability is further strengthened, and the insulation protecting function is enhanced.
Description
Technical field
The present invention relates to the insulation of submersible machine current supply circuit and detect and resist technology, control device and method that specifically a kind of multichannel submersible machine current supply circuit insulation detects and protects.
Background technology
at present common multichannel submersible machine current supply circuit is insulated need to be to insulating monitor of each road current supply circuit configuration when detecting, if need to all gather the insulation values of each road insulating monitor and when uploading to industrial computer, also needing provides a serial ports passage to each insulating monitor, this just needs to use a serial ports expansion server, if also need when the insulation values of certain road current supply circuit is too low to find a PLC with relay-type lead-out terminal to come the shunt opening coil of closed this road current supply circuit air circuit, to disconnect this road current supply circuit.The shortcoming of this conventional method needs a plurality of insulating monitors exactly, also needs the serial ports expansion server, and cost is high, takes up room large.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of can realize stable, accurately, the insulation of multichannel submersible machine current supply circuit detects and control device and the method for resist technology reliably.
The technical solution used in the present invention is: a kind of multichannel submersible machine current supply circuit insulating monitoring and protection control device, insulating monitor detect switching device shifter with insulation and are connected, and insulation detects switching device shifter and is connected with a plurality of submersible machine current supply circuits; Described insulating monitor connects insulation detection commutation circuit by MCU and the insulation protection circuit consists of; Described submersible machine current supply circuit connects motor, power supply and shunt opening coil by air circuit and consists of.
Described insulation protection circuit comprises successively data selection circuit B, discharge circuit B and the control relay group that connects, and data selection circuit B connects MCU, and the control relay group is connected with shunt opening coil in the submersible machine current supply circuit.
Described insulation detects commutation circuit and comprises data selection circuit A, discharge circuit A and the high-voltage relay group that connects successively, and data selection circuit A connects MCU, and the high-voltage relay group is connected with motor in the submersible machine current supply circuit.
Described control relay group is made of one group of control relay.
Described high-voltage relay group is made of one group of high-voltage relay.
Described high-voltage relay group is reed switch relay.
Described insulating monitor is connected by serial ports with MCU.
A kind of multichannel submersible machine current supply circuit insulating monitoring and protection control method comprise the following steps:
The high-voltage relay of first via current supply circuit in step 1:MCU closed high relay group;
Step 2: insulating monitor detects the insulation values of this road current supply circuit;
Step 3: insulating monitor sends insulation values to MCU;
Step 4:MCU judges insulation values: if insulation values meets the requirements, disconnect this road high-voltage relay, after time-delay, the high-voltage relay of closed next road current supply circuit returns to step 2; If insulation values is too low, closed this road current supply circuit shunt opening coil disconnects the air circuit of this road current supply circuit, disconnects this road high-voltage relay, and after time-delay, the high-voltage relay of closed next road current supply circuit returns to step 2.
The present invention has following beneficial effect and advantage:
1. compare with insulation detection device of the prior art, the present invention has significantly reduced use cost, has saved the characteristics of a large amount of installing spaces.
2. the insulation in the present invention detects commutation circuit and adopts MCU control, has very strong extensibility, can by user written program expanding system function, have more the strong characteristics of autgmentability.
3. the present invention has also increased the insulation protection function, occurring can disconnecting automatically, rapidly this road current supply circuit when insulation values is too low, plays the effect of quick protection power supply, therefore also has the function of insulation protection.
Description of drawings
Fig. 1 is apparatus of the present invention structural representation;
Fig. 2 detects the theory diagram of switching device shifter for insulation;
Fig. 3 is the MCU Single Chip Microcomputer (SCM) program flow chart in insulation detection switching device shifter.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is illustrated.
The present invention detects and resist technology for the insulation of multichannel submersible machine current supply circuit.Control data selection circuit A6 and data selection circuit B9 based on MCU5, the mode of then high-voltage relay group 8 being switched makes a plurality of current supply circuits be connected with the signal input part of insulating monitor 2 respectively.So only need an insulating monitor 2 just can the insulation values of multichannel submersible machine current supply circuit to be detected, and when finding that certain road insulation values is too low, disconnect this road current supply circuit air circuit 12, to play the purpose of protection power source 4.
As shown in Figure 1, the inventive system comprises: insulation detects switching device shifter 1 insulating monitor 2 and shunt opening coil 3.Described insulation detects switching device shifter 1 can control being connected of insulating monitor 2 and each current supply circuit, makes an insulating monitor 2 carry out the insulation values detection according to a graded to each current supply circuit.When the insulation values of finding certain loop was too low, closed this road shunt opening coil 3 was to cut off this road current supply circuit.
As shown in Figure 2, insulation detects switching device shifter 1 take MCU5 as core devices, comprises that also insulation detects commutation circuit.Insulation detects commutation circuit and comprises: data selector A6, discharge circuit A7, high-voltage relay group 8, after data selector A6 receives the signal of MCU5, control the output output high level of dedicated tunnel, after amplifying through discharge circuit A7, exports to this signal this road high-voltage relay in high-voltage relay, this road high-voltage relay coil is closed, make normally opened contact closed, with this road current supply circuit and insulating monitor 2 inputs, thereby 2 pairs of these road insulation values of insulating monitor are detected.The insulation protection circuit comprises: data selector B9, discharge circuit B10, control relay group 11; after data selector B9 accepts the signal of MCU5; make the output output high level of dedicated tunnel; after amplifying through discharge circuit B9, exports to this signal this road control relay in control relay group 11; this road control relay coil is closed, makes normally opened contact closed, then gives this road shunt opening coil 3 energisings; make 3 actions of shunt opening coil, disconnect this road air circuit 12.
This device sends order by MCU5 to data selector A6, data selector A6 output signal amplifies through discharge circuit A7 the control mode of coming operate high pressure relay group 8 to switch, power line with each current supply circuit is connected with the input terminal of insulating monitor 2 successively, constantly only have No. one power line to be connected with the input of insulating monitor 2 at each, then the insulation values on 2 pairs of these roads of insulating monitor is measured, and result is sent to MCU5.If insulation values is too low; MCU5 sends order to data selector B9; data selector B9 output signal is amplified next closed this road control relay group 11 through discharge circuit 10; be subjected to shunt opening coil 3 actions that this road control relay is controlled to cut off this road power supply 4, thereby this road power supply 4 is played a protective role.
as shown in Figure 3, testing process is: the high-voltage relay of first via current supply circuit in MCU5 closed high relay group 8, make the insulation values of 2 pairs of these road current supply circuits of insulating monitor detect, insulating monitor 2 sends insulation values to MCU5 by serial ports, MCU5 judges insulation values, if insulation values meets the requirements, disconnect this road high-voltage relay, after waiting for 2 wonderful clocks, the high-voltage relay of closed next road current supply circuit, make insulating monitor 2 detect the insulation values of next road current supply circuit, if insulation values is too low, closed this road current supply circuit shunt opening coil 3, disconnect the air circuit 12 of this road current supply circuit, to protect this road power supply 4.
Claims (8)
1. a multichannel submersible machine current supply circuit insulating monitoring and protection control device, it is characterized in that: insulating monitor (2) detects switching device shifter (1) with insulation and is connected, and insulation detects switching device shifter (1) and is connected with a plurality of submersible machine current supply circuits; Described insulating monitor (2) connects insulation by MCU (5) and detects commutation circuit and insulation protection circuit formation; Described submersible machine current supply circuit connects motor (13), power supply (4) and shunt opening coil (3) by air circuit (12) and consists of.
Multichannel submersible machine current supply circuit insulating monitoring according to claim 1 and the protection control device; it is characterized in that: described insulation protection circuit comprises data selection circuit B (9), discharge circuit B (10) and the control relay group (11) that connects successively; data selection circuit B (9) connects MCU (5), and control relay group (11) is connected with shunt opening coil (3) in the submersible machine current supply circuit.
Multichannel submersible machine current supply circuit insulating monitoring according to claim 1 and the protection control device; it is characterized in that: described insulation detects commutation circuit and comprises data selection circuit A (6), discharge circuit A (7) and the high-voltage relay group (8) that connects successively; data selection circuit A (6) connects MCU (5), and high-voltage relay group (8) is connected with motor (13) in the submersible machine current supply circuit.
Multichannel submersible machine current supply circuit insulating monitoring according to claim 2 and the protection control device, it is characterized in that: described control relay group (11) is made of one group of control relay.
Multichannel submersible machine current supply circuit insulating monitoring according to claim 3 and the protection control device, it is characterized in that: described high-voltage relay group (8) is made of one group of high-voltage relay.
6. according to claim 1 or 3 described multichannel submersible machine current supply circuit insulating monitorings and protection control device, it is characterized in that: described high-voltage relay group (8) is for reed switch relay.
Multichannel submersible machine current supply circuit insulating monitoring according to claim 1 and the protection control device, it is characterized in that: described insulating monitor (2) is connected by serial ports with MCU (5).
8. a multichannel submersible machine current supply circuit insulating monitoring and protection control method is characterized in that: comprise the following steps:
The high-voltage relay of first via current supply circuit in step 1:MCU (5) closed high relay group (8);
Step 2: insulating monitor (2) detects the insulation values of this road current supply circuit;
Step 3: insulating monitor (2) sends insulation values to MCU (5);
Step 4:MCU (5) judges insulation values: if insulation values meets the requirements, disconnect this road high-voltage relay, after time-delay, the high-voltage relay of closed next road current supply circuit returns to step 2; If insulation values is too low, closed this road current supply circuit shunt opening coil (3) disconnects the air circuit (12) of this road current supply circuit, disconnect this road high-voltage relay, after time-delay, the high-voltage relay of closed next road current supply circuit returns to step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103599463A CN103107508A (en) | 2011-11-14 | 2011-11-14 | Insulation monitoring and protecting control device and method for multichannel underwater motor power supply loop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103599463A CN103107508A (en) | 2011-11-14 | 2011-11-14 | Insulation monitoring and protecting control device and method for multichannel underwater motor power supply loop |
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| CN103107508A true CN103107508A (en) | 2013-05-15 |
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| CN2011103599463A Pending CN103107508A (en) | 2011-11-14 | 2011-11-14 | Insulation monitoring and protecting control device and method for multichannel underwater motor power supply loop |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158659A (en) * | 2015-08-31 | 2015-12-16 | 北京首钢国际工程技术有限公司 | Automatic insulation detection system of frequency conversion motor |
| CN109143838A (en) * | 2018-08-03 | 2019-01-04 | 湖南兴天电子科技有限公司 | A kind of underwater dedicated dual redundant switching circuit |
| CN109956014A (en) * | 2017-12-22 | 2019-07-02 | 中国科学院沈阳自动化研究所 | One kind being used for remote-controlled vehicle power distribution unit |
| CN113054616A (en) * | 2021-03-25 | 2021-06-29 | 中海石油(中国)有限公司 | Electric power unit of underwater control system with insulation monitoring function |
| CN114002567A (en) * | 2021-11-09 | 2022-02-01 | 广州思泰信息技术有限公司 | Rapid one-key test system and method for insulation performance |
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| US20080094022A1 (en) * | 2006-10-20 | 2008-04-24 | Fanuc Ltd. | Insulation-resistance degradation detecting device for motors |
| CN101435837A (en) * | 2008-12-15 | 2009-05-20 | 株洲天桥起重机股份有限公司 | Method and apparatus for detecting insulating resistance and releasing static electricity |
| JP2010268645A (en) * | 2009-05-18 | 2010-11-25 | Nissan Motor Co Ltd | Abnormal insulation detector |
| CN202333723U (en) * | 2011-11-14 | 2012-07-11 | 中国科学院沈阳自动化研究所 | Insulation detection and protection control device for multiple underwater motor power supply loops |
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2011
- 2011-11-14 CN CN2011103599463A patent/CN103107508A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080094022A1 (en) * | 2006-10-20 | 2008-04-24 | Fanuc Ltd. | Insulation-resistance degradation detecting device for motors |
| CN101435837A (en) * | 2008-12-15 | 2009-05-20 | 株洲天桥起重机股份有限公司 | Method and apparatus for detecting insulating resistance and releasing static electricity |
| JP2010268645A (en) * | 2009-05-18 | 2010-11-25 | Nissan Motor Co Ltd | Abnormal insulation detector |
| CN202333723U (en) * | 2011-11-14 | 2012-07-11 | 中国科学院沈阳自动化研究所 | Insulation detection and protection control device for multiple underwater motor power supply loops |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158659A (en) * | 2015-08-31 | 2015-12-16 | 北京首钢国际工程技术有限公司 | Automatic insulation detection system of frequency conversion motor |
| CN105158659B (en) * | 2015-08-31 | 2018-03-13 | 北京首钢国际工程技术有限公司 | A kind of variable-frequency motor insulation automatic checkout system |
| CN109956014A (en) * | 2017-12-22 | 2019-07-02 | 中国科学院沈阳自动化研究所 | One kind being used for remote-controlled vehicle power distribution unit |
| CN109143838A (en) * | 2018-08-03 | 2019-01-04 | 湖南兴天电子科技有限公司 | A kind of underwater dedicated dual redundant switching circuit |
| CN113054616A (en) * | 2021-03-25 | 2021-06-29 | 中海石油(中国)有限公司 | Electric power unit of underwater control system with insulation monitoring function |
| CN114002567A (en) * | 2021-11-09 | 2022-02-01 | 广州思泰信息技术有限公司 | Rapid one-key test system and method for insulation performance |
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Application publication date: 20130515 |