CN202772824U - Double motor parallel operation load balancing control device - Google Patents
Double motor parallel operation load balancing control device Download PDFInfo
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- CN202772824U CN202772824U CN2012204651313U CN201220465131U CN202772824U CN 202772824 U CN202772824 U CN 202772824U CN 2012204651313 U CN2012204651313 U CN 2012204651313U CN 201220465131 U CN201220465131 U CN 201220465131U CN 202772824 U CN202772824 U CN 202772824U
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Abstract
The present utility model discloses a double motor parallel operation load balancing control device. The device comprises a first motor, a second motor, a first motor load and a second motor load, a first current sensor is connected with a first motor, a second current sensor is connected with the second motor, the first current sensor and the second current sensor are respectively connected with a current controller, the current controller is connected with a load balancing automatic controller, the load balancing automatic controller is respectively connected with a first motor load controller and a second motor load controller, the first motor load controller is connected with a first motor load actuating mechanism, the second motor load controller is connected with the second motor load actuating mechanism, the first motor load actuating mechanism is connected with the first motor load, and the second motor load actuating mechanism is connected with the second motor load. Thus, problems that as additional bias is adopted to realize correction and artificial intervention adjusting in the routine double motor parallel operation load balancing control device, full process correction cannot be well realized and technology system automatic control cannot be satisfied can be solved.
Description
Technical field
The utility model relates to a kind of bi-motor paired running load balancing control technology field.
Background technology
In industrial technical process, the situation of a lot of two electrodynamic pumps or electric fan paired running is arranged, such as the forced draft fan of thermal power generation unit, induced draft fan, primary air fan, electrically driven feed pump etc.For the double motor of paired running, a most important problem is to resolve the problem of load (exerting oneself) balance, and the load (exerting oneself) that prevents " knocking plate " formula changes, and jeopardizes the safety and economic operation of process system and motor self.
The double motor process system of paired running when the design and equipment type selecting, all can be noted the conforming problem of its operation characteristic.But be subjected in practice the factor affecting such as installation, construction, manufacturing, environment, often be difficult to all accomplish that operation characteristic is consistent completely.When the two operation characteristic differs the degree that reaches certain, " robbing accent " phenomenon that the positive feedback formula will occur, make that the low person of load (exerting oneself) more and more is restricted, high person is more and more higher, occur that load imbalance, process system operation stability are destroyed, that excessive current flow in motor, pump or fan enter the operation of non-security district etc. is unusual.This was had some solutions, for example additional biasing is proofreaied and correct, manual intervention is regulated etc. in the past, and mainly there is following shortcoming in these methods: can not realize well the overall process correction 1.; 2. be difficult to satisfy the automatically needs of control of process system.
Summary of the invention
The technical problems to be solved in the utility model: a kind of bi-motor paired running load balancing control device is provided, adopts additional biasing to proofread and correct or the technological means such as manual intervention adjusting exists can not realize well that overall process proofreaies and correct and be difficult to satisfy the automatically problems such as needs of control of process system to solve the control of conventional bi-motor paired running load balancing.
Technical solutions of the utility model:
A kind of bi-motor paired running load balancing control device, it comprises the first motor, the second motor, the first motor load and the second motor load, the first current sensor is connected with the first motor, the second current sensor is connected with the second motor, the first and second current sensors are connected with current controller respectively, current controller is connected with the load balancing automatic controller, the load balancing automatic controller is connected with the first and second motor load controllers respectively, the first motor load controller is connected with the first motor load actuator, the second motor load controller is connected with the second motor load actuator, the first motor load actuator is connected with the first motor load, and the second motor load actuator is connected with the second motor load.
The technical process automatic controller respectively with the first motor load controller be connected the motor load controller and be connected.
The beneficial effects of the utility model:
The utility model detects the running current of bi-motor in real time by current sensor, delivering to current controller processes automatically, and output signal is controlled the load balancing automatic controller automatically, realize the current capacity control and distribution of bi-motor, sharing of load is delivered to respectively the first motor load controller and the second motor load controller, realization is to the control of the first motor load actuator and the second motor load actuator, realize the variation of the first motor load and the second motor load, thereby change the running current of the first motor and the second motor, realize the load balancing control of bi-motor, compared with the prior art, the utility model can the omnidistance automatic calibration of realizing load balancing, can satisfy the automatically demand of control of process system, solve conventional bi-motor paired running load balancing control and adopted additional biasing to proofread and correct or the technological means such as manual intervention adjusting exists can not realize well that overall process proofreaies and correct and be difficult to satisfy the automatically problems such as needs of control of process system.
Description of drawings:
Fig. 1 the utility model device composition frame chart.
Embodiment:
A kind of bi-motor paired running load balancing control device, it comprises the first motor, the second motor, the first motor load and the second motor load, the first motor is connected with the first motor load, the second motor is connected with the second motor load, the first current sensor is connected with the first motor, detect the real time execution electric current of the first motor, the second current sensor is connected in real time detection the second current of electric with the second motor, the signal output part of the first and second current sensors is connected by shielded conductor with current controller analog input end respectively, current controller is connected by communication bus with the load balancing automatic controller, the load balancing automatic controller is connected with the first and second motor load controller wires respectively, the first motor load controller is connected by holding wire with the first motor load actuator, the second motor load controller is connected by holding wire with the second motor load actuator, the first motor load actuator is connected with the first motor load, and the second motor load actuator is connected with the second motor load.
The technical process automatic controller respectively with the first motor load controller be connected the motor load controller and be connected by data/address bus, realize the information transmission between the controller.
The utility model is judged sharing of load situation and uneven degree between the two to change direction and the size of real work electric current difference between the double motor automatically, when the first motor load greater than the second motor load and when surpassing set point, do not allow the first motor to continue to increase load and do not allow the second motor to continue load down, preferentially allow this moment the second motor increase load when system requirements increases load, system requirements preferentially allows the first motor reduce load when reducing load; Otherwise, when the first motor load less than the second motor load and when surpassing set point, do not allow the continuation of the first motor to reduce load and do not allow the second motor to continue to increase to load, system requirements preferentially allows the first motor increase load when increasing load, system requirements preferentially allows the second motor reduce load when reducing load.Can suppress further expansion load unbalanced between two motor by above control, and can reduce as early as possible and eliminate unbalanced situation, guarantee not occur " robbing accent " phenomenon.
Claims (2)
1. bi-motor paired running load balancing control device, it comprises the first motor, the second motor, the first motor load and the second motor load, it is characterized in that: the first current sensor is connected with the first motor, the second current sensor is connected with the second motor, the first and second current sensors are connected with current controller respectively, current controller is connected with the load balancing automatic controller, the load balancing automatic controller is connected with the first and second motor load controllers respectively, the first motor load controller is connected with the first motor load actuator, the second motor load controller is connected with the second motor load actuator, the first motor load actuator is connected with the first motor load, and the second motor load actuator is connected with the second motor load.
2. a kind of bi-motor paired running load balancing control device according to claim 1 is characterized in that: the technical process automatic controller respectively with the first motor load controller be connected the motor load controller and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204651313U CN202772824U (en) | 2012-09-13 | 2012-09-13 | Double motor parallel operation load balancing control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204651313U CN202772824U (en) | 2012-09-13 | 2012-09-13 | Double motor parallel operation load balancing control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772824U true CN202772824U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204651313U Expired - Fee Related CN202772824U (en) | 2012-09-13 | 2012-09-13 | Double motor parallel operation load balancing control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772824U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929103A (en) * | 2014-04-04 | 2014-07-16 | 烟台鲁宝钢管有限责任公司 | Controllable silicon rectifier device double driven by high power direct current motor |
| CN108306555A (en) * | 2017-01-12 | 2018-07-20 | 大族激光科技产业集团股份有限公司 | A kind of two axis servo drive system |
| CN111579850A (en) * | 2020-04-16 | 2020-08-25 | 南京金龙新能源汽车研究院有限公司 | System and method for improving anti-interference performance of motor rack system |
| CN115013344A (en) * | 2022-06-27 | 2022-09-06 | 浙江中控技术股份有限公司 | Automatic parallel method and device for blowers of thermal generator set |
-
2012
- 2012-09-13 CN CN2012204651313U patent/CN202772824U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929103A (en) * | 2014-04-04 | 2014-07-16 | 烟台鲁宝钢管有限责任公司 | Controllable silicon rectifier device double driven by high power direct current motor |
| CN103929103B (en) * | 2014-04-04 | 2016-09-07 | 烟台鲁宝钢管有限责任公司 | A kind of high power DC electric machine pair the silicon controlled rectifier driven |
| CN108306555A (en) * | 2017-01-12 | 2018-07-20 | 大族激光科技产业集团股份有限公司 | A kind of two axis servo drive system |
| CN108306555B (en) * | 2017-01-12 | 2019-11-19 | 大族激光科技产业集团股份有限公司 | A kind of two axis servo drive system |
| CN111579850A (en) * | 2020-04-16 | 2020-08-25 | 南京金龙新能源汽车研究院有限公司 | System and method for improving anti-interference performance of motor rack system |
| CN115013344A (en) * | 2022-06-27 | 2022-09-06 | 浙江中控技术股份有限公司 | Automatic parallel method and device for blowers of thermal generator set |
| CN115013344B (en) * | 2022-06-27 | 2024-04-19 | 中控技术股份有限公司 | Automatic parallel method and device for blowers of thermal generator set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150913 |
|
| EXPY | Termination of patent right or utility model |