CN2459805Y - Intelligent multi-driving motor control protection system - Google Patents
Intelligent multi-driving motor control protection system Download PDFInfo
- Publication number
- CN2459805Y CN2459805Y CN01214928U CN01214928U CN2459805Y CN 2459805 Y CN2459805 Y CN 2459805Y CN 01214928 U CN01214928 U CN 01214928U CN 01214928 U CN01214928 U CN 01214928U CN 2459805 Y CN2459805 Y CN 2459805Y
- Authority
- CN
- China
- Prior art keywords
- protection system
- driving motor
- resistance
- motor control
- bidirectional triode
- 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
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- Control Of Multiple Motors (AREA)
Abstract
The utility model relates to an excess charge absorption device of an intelligent multi-driving motor control protection system. The excess charge absorption device of an intelligent multi-driving motor control protection system is connected to an output line of a soft starter in parallel. At least two switching electrical distribution switch groups which are connected with motors are connected to primary master lines (u, v, and w) and output lines (u2, v2, and w3) of a soft starter. The excess charge on the output line of the soft starter can be released within a very short time by a system. When a plurality of motors are controlled by a control system in a time-sharing mode, the phenomena of overvoltage and overcurrent can not occur to cause the damage of the motors and the soft starter. The utility model realizes that one control system can control and drive a plurality of motors.
Description
The utility model relates to a kind of Motor Control protection system.
At present; intelligent motor control protection system; its structured flowchart such as Fig. 1; behind motor start-up; exist excess charges on the secondary bus (output line of soft initiator); this excess charges makes bus the over-voltage and over-current phenomenon occur in the multiple motors start-up course easily, thereby motor is damaged.Thereby intelligent motor control protection system can only be controlled a motor at present, makes a motor start-up.Under the environment that needs multiple motors work, motor of a cover control system control must be the waste that causes a plurality of control system, has increased cost.Along with rapid development of computer technology, the networking of Motor Control protection system realizes that it is the trend of following motor development that a cover control protection system controlling and driving multiple motors starts.The utility model is at causing control system can not realize that the problem of many drive motors studies, and proposed solution.
The purpose of this utility model is that prior art is improved, and openly can drive the control protection system of intelligent many drive motors of multiple motors.
The utility model purpose is achieved in that intelligent many The driving motor control protection system, it is characterized in that: the excess charges absorption plant is attempted by on the output line of soft initiator; Have at least the conversion panel switches group of two connection motor to be attempted by on the output line (u2, v2, w2) of a bus (u, v, w) and soft initiator.
The utility model can discharge the excess charges on the soft initiator output line in very short time, when making control system timesharing control multiple motors, the over-voltage and over-current phenomenon can not occur, and cause the damage of motor and soft initiator, multiple motors can be controlled and drive to realization one cover control system.
Fig. 1 is the prior art constructions block diagram.
Fig. 2 is the circuit diagram of prior art.
Fig. 3 is the utility model structured flowchart.
Fig. 4 is the embodiment circuit diagram of the superfluous absorption plant of the utility model.
Fig. 5 is the utility model embodiment one (driving 4 motor) circuit diagram.
Fig. 6 is the utility model embodiment one (driving multiple motors) circuit diagram.
Below with reference to figure embodiment is described.
(with reference to Fig. 1, Fig. 3) as can be seen from the figure, the utility model is that prior art is improved, on the output line of soft initiator and take over residual electricity lotus absorption plant, parallel being connected on the output line (u2, v2, w2) of a bus (u, v, w) and soft initiator of conversion panel switches group of the identical connection motor of a plurality of structures arranged.
(with reference to Fig. 4) excess charges absorption plant: 3 external connectors are arranged, two ends that joint is respectively resistance R 1, R4 wherein, another joint is the common junction of bidirectional triode thyristor T1, T2 output; The control end that two bidirectional triode thyristors are arranged connects the PLC control device respectively.The other end of resistance R 1, R4 connects the end of bidirectional triode thyristor T1, T2 respectively by resistance R 2, R3, capacitor C 1, C2 are in parallel with the series arm that resistance R 2, bidirectional triode thyristor T1 formation series arm and resistance R 3 bidirectional triode thyristor T2 constitute respectively.
The structure of (with reference to Fig. 2,5,6) embodiment one and embodiment two is basic identical, and difference is, what of both institute's drive motors numbers.In these two embodiment, except that the excess charges absorption plant, the connected mode and the structure of all the other each several parts are same as the prior art, (see figure 2).Here no longer repeat.The concrete structure of excess charges absorption plant is seen above-mentioned, and its 3 external connectors connect three output lines (u2, v2, w2) of soft initiator PSD respectively, but the controlled end of bidirectional triode thyristor T1, T2 connects the PLC control device respectively.
Claims (2)
1. intelligent many The driving motor control protection system is characterized in that: the excess charges absorption plant is attempted by on the output line of soft initiator; Have at least the conversion panel switches group of two connection motor to be attempted by on the output line (u2, v2, w2) of a bus (u, v, w) and soft initiator.
2. many The driving motor control of intelligence protection system according to claim 1, it is characterized in that: the structure of excess charges absorption plant: three external connectors are arranged, two ends that joint is respectively resistance R (1), R (4) wherein, another joint is the common junction of bidirectional triode thyristor T (1), T (2) output; The control end that two bidirectional triode thyristors are arranged connects the PLC control device respectively; The other end of resistance R (1), R (4) connects the end of bidirectional triode thyristor T (1), T (2) respectively by resistance R (2), R (3), capacitor C (1), C (2) are in parallel with the series arm that resistance R (2), bidirectional triode thyristor T (1) formation series arm and resistance R (3) bidirectional triode thyristor T (2) constitute respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01214928U CN2459805Y (en) | 2001-01-12 | 2001-01-12 | Intelligent multi-driving motor control protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01214928U CN2459805Y (en) | 2001-01-12 | 2001-01-12 | Intelligent multi-driving motor control protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2459805Y true CN2459805Y (en) | 2001-11-14 |
Family
ID=33633594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01214928U Expired - Fee Related CN2459805Y (en) | 2001-01-12 | 2001-01-12 | Intelligent multi-driving motor control protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2459805Y (en) |
-
2001
- 2001-01-12 CN CN01214928U patent/CN2459805Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20011114 |