CN104079231A - Motor control system for trailer of electric water pump set - Google Patents
Motor control system for trailer of electric water pump set Download PDFInfo
- Publication number
- CN104079231A CN104079231A CN201410220168.3A CN201410220168A CN104079231A CN 104079231 A CN104079231 A CN 104079231A CN 201410220168 A CN201410220168 A CN 201410220168A CN 104079231 A CN104079231 A CN 104079231A
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- water pump
- motor
- unit
- control system
- electric water
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a motor control system for a trailer of an electric water pump set. The motor control system comprises a PLC unit, a variable frequency motor, a frequency converter and a water pump driven through the variable frequency motor. The water pump is operationally connected to control equipment, the PLC unit is electrically connected to the variable frequency motor through the frequency converter, the variable frequency motor is electrically connected to four units which are a current detection unit, a voltage detection unit, a phase loss detection unit and a motor temperature monitoring unit, and the four units are connected to the PLC unit. The circuit of the motor control system is very easy to install and can be started to operate as long as a power supply is switched in, fast assembly and disassembly of mobile equipment are facilitated, whole-process monitoring and protecting are carried out on operation states of the motor and the water pump through a microcomputer in a control box after the motor control system is started, damage caused by power supply phase loss, overcurrent, motor overheating, water pump overload, jammed faults and other faults to electrical equipment and a pumping unit is avoided, and therefore the service life of the electric water pump set is effectively prolonged and operation security of the electric water pump set is effectively guaranteed.
Description
Technical field
The present invention relates to a kind of electric water pump group trailer electric machine control system.
Background technology
At present; existing electric water pump group trailer often can run in when work the damage that causes electric equipment and water pump assembly because of the disconnected phase of power supply, overcurrent, motor overheating, water pump overload, the fault such as stuck; thereby have influence on useful life and the security of operation of electric water pump group; complicated for mobile electric pump group environment for use; electric fault rate is high; many defects such as installation, maintenance difficulty; the applicant puts into practice by years of researches, develops the electric water pump group trailer electric machine control system of a kind of easy for installation, simple to operate, failure rate is low, use safety.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the electric water pump group trailer control system of a kind of simple to operate, failure rate is low, use safety is provided.
The present invention's technical scheme adopting of dealing with problems is:
Electric water pump group trailer control system, comprise PLC unit, variable-frequency motor, frequency converter and the water pump driving by variable-frequency motor, this water pump is operably connected to control appliance, PLC unit is electrically coupled to variable-frequency motor by frequency converter, described variable-frequency motor is electrically connected to four unit, four described unit are respectively current detecting unit, voltage detection unit, disconnected phase detecting unit and motor temperature monitoring unit, and these four element connections are in PLC unit.
Further setting as such scheme: described frequency converter starts water pump to variable-frequency motor with soft starting mode.
Further setting as such scheme: described control appliance comprises monitoring display screen, indicator light and tactile keyboard.
Further setting as such scheme: described control appliance is electrically connected to PLC unit.
Further setting as such scheme: the operating parameter values that described control appliance is configured to based on obtaining judges whether to meet reservation condition, and based on the meeting to frequency converter transfer instruction of described reservation condition, thereby variable-frequency motor work controlled.
The invention has the beneficial effects as follows:
Circuit of the present invention is installed very simple; as long as can start operation after access power supply; facilitate Fast Installation and the dismounting of mobile device; after startup, by the microcomputer in control cabinet, motor, water pump operation state are carried out to complete monitoring protection; avoid the damage electric equipment and the water pump assembly that because of the disconnected phase of power supply, overcurrent, motor overheating, water pump overload, the fault such as stuck, cause, thereby effectively extend useful life and the security of operation of electric water pump group.
Accompanying drawing explanation
Fig. 1 shows one embodiment of the present of invention;
Fig. 2 shows control flow chart of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further explained to explanation
As shown in Figure 1, the invention provides a kind of electric water pump group trailer control system, comprise PLC unit 1, variable-frequency motor 2, frequency converter 3 and the water pump 4 driving by variable-frequency motor 2, this water pump 4 is operably connected to control appliance 5, PLC unit 1 is electrically coupled to variable-frequency motor 2 by frequency converter 3, described variable-frequency motor 2 is electrically connected to four unit, four described unit are respectively current detecting unit 6, voltage detection unit 7, disconnected phase detecting unit 8 and motor temperature monitoring unit 9, and these four element connections are in PLC unit 1.
Described 3 pairs of variable-frequency motors 2 of frequency converter start water pump 4 with soft starting mode.
Described control appliance 5 comprises monitoring display screen, indicator light and tactile keyboard.
Described control appliance 5 is electrically connected to PLC unit 1.
The operating parameter values that described control appliance 5 is configured to based on obtaining judges whether to meet reservation condition, and based on the meeting to frequency converter 3 transfer instructions of described reservation condition, thereby control variable-frequency motor 2 work.
The operating state flow chart of the present embodiment electric water pump group trailer control system, specifically as shown in Figure 2, the fault alarm shown in figure is many feedback informations such as current detecting, voltage detecting, disconnected detection, motor temperature detection mutually.
Electric machine control system structure, also includes electric cabinet, and described variable-frequency motor 2, frequency converter 3, electric cabinet are arranged in a regulator cubicle, and frequency converter 3, electric cabinet, through moistureproof, precautions against earthquakes, form an integral power system.
In electric cabinet, be provided with the multinomial defencive functions such as current detecting unit 6, voltage detection unit 7, disconnected phase detecting unit 8 and motor temperature monitoring unit 9, guarantee the security of operation of electrodynamic pump group.Control appliance 5 surfaces are provided with electric operation monitoring display screen, and indicator light reflects the operating state of water pump, motor operation at any time, greatly facilitate operating personnel the management of electric water pump group and fault are got rid of.
The work of this electric water pump group adopts manual control to be combined with two kinds of modes of remote control, to select in different environments for use, after pressing start key startup, by 3 pairs of variable-frequency motors 2 of PLC unit 1 automatic command frequency converter, with soft starting mode, start water pump 4 work, in electric cabinet, circuit enters monitor state automatically simultaneously, avoids water pump 4 to start and because staring torque is excessive, causes the wearing and tearing to transmission device and water pump vane.
Circuit of the present invention is installed very simple; as long as can start operation after access power supply; facilitate Fast Installation and the dismounting of mobile device; after startup, by 1 pair of the PLC unit in control cabinet variable-frequency motor 2, water pump 4 running statuses, carry out complete monitoring protection; avoid the damage electric equipment and the water pump assembly that because of the disconnected phase of power supply, overcurrent, motor overheating, water pump overload, the fault such as stuck, cause, thereby effectively extend useful life and the security of operation of electric water pump group.
The above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of the claims in the present invention.
Claims (5)
1. electric water pump group trailer control system, it is characterized in that: comprise PLC unit (1), variable-frequency motor (2), frequency converter (3) and the water pump (4) driving by variable-frequency motor (2), this water pump (4) is operably connected to control appliance (5), PLC unit (1) is electrically coupled to variable-frequency motor (2) by frequency converter (3), described variable-frequency motor (2) is electrically connected to four unit, four described unit are respectively current detecting unit (6), voltage detection unit (7), disconnected phase detecting unit (8) and motor temperature monitoring unit (9), these four element connections are in PLC unit (1).
2. electric water pump group trailer control system according to claim 1, is characterized in that: described frequency converter (3) starts water pump (4) to variable-frequency motor (2) with soft starting mode.
3. electric water pump group trailer control system according to claim 1, is characterized in that: described control appliance (5) comprises monitoring display screen, indicator light and tactile keyboard.
4. according to the electric water pump group trailer control system described in claim 1 or 3, it is characterized in that: described control appliance (5) is electrically connected to PLC unit (1).
5. electric water pump group trailer control system according to claim 1, it is characterized in that: the operating parameter values that described control appliance (5) is configured to based on obtaining judges whether to meet reservation condition, and based on meeting to frequency converter (3) transfer instruction of described reservation condition, thereby control variable-frequency motor (2) work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220168.3A CN104079231A (en) | 2014-08-02 | 2014-08-02 | Motor control system for trailer of electric water pump set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220168.3A CN104079231A (en) | 2014-08-02 | 2014-08-02 | Motor control system for trailer of electric water pump set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104079231A true CN104079231A (en) | 2014-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410220168.3A Pending CN104079231A (en) | 2014-08-02 | 2014-08-02 | Motor control system for trailer of electric water pump set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104079231A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759673A (en) * | 2014-12-19 | 2016-07-13 | 杭州三花研究院有限公司 | Automobile electronic system and use method thereof |
| CN109994997A (en) * | 2019-04-28 | 2019-07-09 | 淮北矿业股份有限公司 | Elevator main motor protects system and its test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089667U (en) * | 1991-03-26 | 1991-11-27 | 浙江省三门县开关厂 | Three phase ac motor protector |
| CN2385525Y (en) * | 1999-07-24 | 2000-07-05 | 东营金泰有限公司 | Automatic control device for spray irrigation |
| CN2800613Y (en) * | 2005-06-24 | 2006-07-26 | 侯增鸿 | Submersible motor pump, electromotor phase-failure, overcurrent automatic protection switch |
| CN102006007A (en) * | 2010-12-10 | 2011-04-06 | 深圳市航盛电子股份有限公司 | Motor control system of electric automobile |
| CN203614130U (en) * | 2013-11-29 | 2014-05-28 | 山东华腾自动化科技有限公司 | Mine drainage system |
-
2014
- 2014-08-02 CN CN201410220168.3A patent/CN104079231A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089667U (en) * | 1991-03-26 | 1991-11-27 | 浙江省三门县开关厂 | Three phase ac motor protector |
| CN2385525Y (en) * | 1999-07-24 | 2000-07-05 | 东营金泰有限公司 | Automatic control device for spray irrigation |
| CN2800613Y (en) * | 2005-06-24 | 2006-07-26 | 侯增鸿 | Submersible motor pump, electromotor phase-failure, overcurrent automatic protection switch |
| CN102006007A (en) * | 2010-12-10 | 2011-04-06 | 深圳市航盛电子股份有限公司 | Motor control system of electric automobile |
| CN203614130U (en) * | 2013-11-29 | 2014-05-28 | 山东华腾自动化科技有限公司 | Mine drainage system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759673A (en) * | 2014-12-19 | 2016-07-13 | 杭州三花研究院有限公司 | Automobile electronic system and use method thereof |
| CN109994997A (en) * | 2019-04-28 | 2019-07-09 | 淮北矿业股份有限公司 | Elevator main motor protects system and its test method |
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Application publication date: 20141001 |
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| WD01 | Invention patent application deemed withdrawn after publication |