CN105337557A - Energy saver control system for three-phase asynchronous motor - Google Patents
Energy saver control system for three-phase asynchronous motor Download PDFInfo
- Publication number
- CN105337557A CN105337557A CN201410387522.1A CN201410387522A CN105337557A CN 105337557 A CN105337557 A CN 105337557A CN 201410387522 A CN201410387522 A CN 201410387522A CN 105337557 A CN105337557 A CN 105337557A
- Authority
- CN
- China
- Prior art keywords
- phase
- control system
- phase terminal
- phase lead
- module
- 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.)
- Pending
Links
Abstract
The invention discloses an energy saver control system for a three-phase asynchronous motor. The three-phase asynchronous motor comprises an A phase lead, a B phase lead and a C phase lead that are led out; the A phase lead, the B phase lead and the C phase lead are connected with a silicon controlled rectifier A, a silicon controlled rectifier B and a silicon controlled rectifier C respectively; the C phase lead is provided with a resistor; a current sampling module is connected with the resistor through a wire; a voltage sampling module is connected with the B phase lead and the C phase lead separately through wires; the current sampling module and the voltage sampling module input the collected signal into a phase position comparison module; the phase position comparison module inputs the signal after comparison into a controller; and the controller is connected with the silicon controlled rectifier A, the silicon controlled rectifier B and the silicon controlled rectifier C separately. The energy saver control system adopts the integrated circuit control and the intelligent sampling, computing and control are realized; and the energy saver control system has the function of electricity saving as well as the functions of soft start, open-phase protection, overcurrent protection, overhigh protection and the like.
Description
Technical field
The present invention relates to a kind of control system, particularly relate to a kind of three-phase asynchronous motor energy-saving device control system.
Background technology
Many electromechanical equipments are in intermittent load operating conditions in process of production, as planer, slotting machine etc.; Also have some equipment to be often in state under load, the existence of these factors, make motor add unnecessary electric energy loss, thus add product cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of three-phase asynchronous motor energy-saving device control system that can save energy.
The technical solution adopted in the present invention is: a kind of three-phase asynchronous motor energy-saving device control system, comprise threephase asynchronous machine, controller, current sample module, voltage sample module and phase compare module, described threephase asynchronous machine comprises the A phase terminal of extraction, B phase terminal and C phase terminal, described A phase terminal, B phase terminal and C phase terminal are connected to controllable silicon A, controllable silicon B and controllable silicon C, described C phase terminal is provided with a resistance, described current sample module is by wire contact resistance, described voltage sample module connects B phase terminal and C phase terminal respectively by wire, described current sample module and voltage sample module are the signal input phase comparison module gathered, described phase compare module is the signal input controller after relatively, described controller connects controllable silicon A respectively by wire, controllable silicon B and controllable silicon C.
Described controller is MCS-51 single-chip microcomputer.
The present invention adopts integrated circuit to control, and realizes sampling, computing, intelligent control, and repacking is put not only has electricity-saving function, but also has the functions such as soft start, open phase protection, overcurrent, overvoltage protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, threephase asynchronous machine; 2, controller; 3, resistance; 4, current sample module; 5, voltage sample module; 6, phase compare module; 11, A phase terminal; 12, B phase terminal; 13, C phase terminal; 21, controllable silicon A; 22, controllable silicon B; 23, controllable silicon C.
Embodiment
Below in conjunction with accompanying drawing, and in conjunction with the embodiments, the present invention is described further.
As shown in Figure 1, a kind of three-phase asynchronous motor energy-saving device control system of the present embodiment, comprise threephase asynchronous machine 1, controller 2, current sample module 4, voltage sample module 5 and phase compare module 6, described threephase asynchronous machine 1 comprises the A phase terminal 11 of extraction, B phase terminal 12 and C phase terminal 13, described A phase terminal 11, B phase terminal 12 and C phase terminal 13 are connected to controllable silicon A21, controllable silicon B22 and controllable silicon C23, described C phase terminal 13 is provided with a resistance 3, described current sample module 4 is by wire contact resistance 3, described voltage sample module 5 connects B phase terminal 12 and C phase terminal 13 respectively by wire, described current sample module 4 and voltage sample module 5 are the signal input phase comparison module 6 gathered, described phase compare module 6 is the signal input controller 2 after relatively, described controller 2 connects controllable silicon A21 respectively by wire, controllable silicon B22 and controllable silicon C23.
Described controller 2 is MCS-51 single-chip microcomputer.
When the load of threephase asynchronous machine 1 is different, its operational efficiency is different.When motor load is from when changing to zero load at full capacity, its power-factor angle is approximately increased to about 80 degree from 30 degree, and namely when zero load or light running, the idle composition in motor absorbed power adds a lot, this not only consumes electric energy, and brings adverse influence to electrical network.Three-phase asynchronous motor energy-saving device control system of the present invention, with the phase difference (i.e. power-factor angle) between motor input voltage and electric current for parameter, the electric current of motor is crossed by thyristor regulating throttling, make it to adapt with load, keep the phase difference of electric current and voltage at about 30 degree, make motor always work in the state of making laughs like this, reduce reactive power and copper iron loss, thus reach the object of economize on electricity.
The present invention adopts integrated circuit to control, and realizes sampling, computing, intelligent control, and repacking is put not only has electricity-saving function, but also has the functions such as soft start, open phase protection, overcurrent, overvoltage protection.
Claims (2)
1. a three-phase asynchronous motor energy-saving device control system, comprise threephase asynchronous machine (1), controller (2), current sample module (4), voltage sample module (5) and phase compare module (6), described threephase asynchronous machine (1) comprises the A phase terminal (11) of extraction, B phase terminal (12) and C phase terminal (13), it is characterized in that: described A phase terminal (11), B phase terminal (12) and C phase terminal (13) are connected to controllable silicon A (21), controllable silicon B (22) and controllable silicon C (23), described C phase terminal (13) is provided with a resistance (3), described current sample module (4) is by wire contact resistance (3), described voltage sample module (5) connects B phase terminal (12) and C phase terminal (13) respectively by wire, described current sample module (4) and voltage sample module (5) are the signal input phase comparison module (6) gathered, described phase compare module (6) is the signal input controller (2) after relatively, described controller (2) connects controllable silicon A (21) respectively by wire, controllable silicon B (22) and controllable silicon C (23).
2. a kind of three-phase asynchronous motor energy-saving device control system according to claim 1, is characterized in that: described controller (2) is MCS-51 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387522.1A CN105337557A (en) | 2014-08-07 | 2014-08-07 | Energy saver control system for three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387522.1A CN105337557A (en) | 2014-08-07 | 2014-08-07 | Energy saver control system for three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105337557A true CN105337557A (en) | 2016-02-17 |
Family
ID=55287901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410387522.1A Pending CN105337557A (en) | 2014-08-07 | 2014-08-07 | Energy saver control system for three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105337557A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208886A (en) * | 2016-07-26 | 2016-12-07 | 广东好太太科技集团股份有限公司 | A kind of motor noise-reducing control circuit applied on intelligence clothes airing machine and method thereof |
| CN113315348A (en) * | 2021-07-01 | 2021-08-27 | 四川英杰电气股份有限公司 | Drive control method of silicon controlled rectifier power supply and silicon controlled rectifier power supply |
-
2014
- 2014-08-07 CN CN201410387522.1A patent/CN105337557A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208886A (en) * | 2016-07-26 | 2016-12-07 | 广东好太太科技集团股份有限公司 | A kind of motor noise-reducing control circuit applied on intelligence clothes airing machine and method thereof |
| CN113315348A (en) * | 2021-07-01 | 2021-08-27 | 四川英杰电气股份有限公司 | Drive control method of silicon controlled rectifier power supply and silicon controlled rectifier power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105337557A (en) | Energy saver control system for three-phase asynchronous motor | |
| CN201690400U (en) | Frequency-conversion soft-start hybrid power cabinet | |
| CN203640974U (en) | Control cabinet of electric submersible reciprocating pump | |
| CN103166543A (en) | Multi-split variable-frequency speed control system of energy-saving feedback type brushless coiling motor | |
| CN106208639A (en) | Input adaptive Switching power | |
| CN205245462U (en) | Variable frequency air conditioner compressor controlling means | |
| CN204304866U (en) | A kind of motor step-down energy-saving control device | |
| CN105024396A (en) | Energy feedback frequency converter | |
| CN204143198U (en) | Electricity cooking pot and control protective unit thereof | |
| CN203011988U (en) | Motor voltage detection circuit under control of direct current torque | |
| CN107733211B (en) | High power AC voltage dropping power supply socket | |
| CN202798568U (en) | Three-phase asynchronous motor energy-saving device | |
| CN207053428U (en) | 220V threephase asynchronous private energy-saving apparatus | |
| CN204030612U (en) | Intelligent integrated auto-reactive compensation device | |
| CN205265573U (en) | Brushless double -fed motor's start structure | |
| CN203608134U (en) | Intelligent electricity-saving device of three-phase motor | |
| CN202475363U (en) | Motor electricity-saving device | |
| CN203859654U (en) | Voltage-regulating and speed-regulating asynchronous motor | |
| CN203193552U (en) | Soft start cabinet | |
| CN201430445Y (en) | Semiconductor mechanical integrated switch | |
| CN202026273U (en) | Speed regulation device of three-phase asynchronous wound rotor type motor for crane | |
| CN103107687B (en) | Coal mine explosion-proof frequency converter control panel circuit | |
| CN205265574U (en) | Brushless double -fed motor's low -cost start structure | |
| CN202707443U (en) | A variable frequency slurry circulation pump provided with a bypass circuit | |
| CN201383780Y (en) | Mining soft starter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160217 |