CN112467866A - Dual-power switching control device of motor and control method thereof - Google Patents
Dual-power switching control device of motor and control method thereof Download PDFInfo
- Publication number
- CN112467866A CN112467866A CN202011322223.1A CN202011322223A CN112467866A CN 112467866 A CN112467866 A CN 112467866A CN 202011322223 A CN202011322223 A CN 202011322223A CN 112467866 A CN112467866 A CN 112467866A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- voltage
- dual
- power
- 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
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
A dual power supply switching control device of a motor and a control method thereof belong to the technical field of power supply control. The invention provides a dual-power switching control device and a control method thereof, which can ensure that a motor does not stop, switch power supplies in time, and have high safety and strong stability. The dual-power switching control device is characterized in that a common power supply and a standby power supply are connected with a high-voltage dual-power incoming line cabinet, the high-voltage dual-power incoming line cabinet is connected with a high-voltage starting cabinet, the high-voltage starting cabinet is connected with a motor, and the high-voltage dual-power incoming line cabinet and the high-voltage starting cabinet are respectively in two-way connection with a PLC control unit. The control method comprises the steps of detecting whether a ready signal of the high-voltage dual-power-supply incoming line cabinet is closed or not, detecting whether the ready signal of the high-voltage starting cabinet is closed or not, detecting whether the running current of the high-voltage starting cabinet is normal or not, detecting the running states of the high-voltage dual-power-supply incoming line cabinet, the high-voltage starting cabinet and the motor in real time, and controlling whether the working state of the high-voltage dual-power-supply incoming line cabinet is switched or not according to the. The invention is mainly used for controlling the power supply of the motor.
Description
Technical Field
The invention belongs to the technical field of power supply control, and particularly relates to a dual-power switching control device of a motor and a control method thereof.
Background
At present, the motor of some large-scale equipment is not allowed to be powered off in work, the economic loss caused by the shutdown is immeasurable, and even the factory paralysis can be caused, such as 'electricity dazzling' for a few seconds, the enterprise which requires a large amount of equipment in the continuous production and does not allow the motor to be tripped and shut down in the process flow is catastrophic, the economic loss of a light person is hundreds of thousands or thousands of persons, the serious enterprise can also generate fire, explosion and even personal safety, and the enterprise is really a few seconds of a disaster.
Therefore, a dual power switching control device and a control method thereof are needed, which can ensure that the motor does not stop, switch power sources in time, and have high safety and strong stability.
Disclosure of Invention
The invention provides a dual-power switching control device and a control method thereof, which can ensure that a motor is not stopped and the power supply is switched in time, and have high safety and high stability, aiming at the defects that the conventional motor power supply can not ensure that the motor is not stopped and the power supply can not be switched in time, and has poor safety and poor stability.
The technical scheme of the invention is as follows:
the invention relates to a dual-power switching control device of a motor, which comprises a high-voltage dual-power incoming line cabinet, a high-voltage starting cabinet, a PLC control unit and a motor, wherein the output ends of a common power supply and a standby power supply are connected with the input end of the high-voltage dual-power incoming line cabinet, the output end of the high-voltage dual-power incoming line cabinet is connected with the input end of the high-voltage starting cabinet, the output end of the high-voltage starting cabinet is connected with the input end of the motor, and the high-voltage dual-power incoming line cabinet and the high-voltage starting cabinet are respectively connected with the PLC control unit in a.
Further: the high-voltage dual-power incoming line cabinet comprises a high-voltage dual-power incoming line cabinet A and a high-voltage dual-power incoming line cabinet B, the output end of a common power supply is connected with the input end of the high-voltage dual-power incoming line cabinet A, and the output end of a standby power supply is connected with the input end of the high-voltage dual-power incoming line cabinet B.
Further: the PLC control unit comprises a detection module, a judgment module, a command module and an alarm module,
the detection module is used for detecting the current running states of the high-voltage dual-power-supply incoming line cabinet and the high-voltage starting cabinet and the current of the high-voltage starting cabinet in real time;
the judging module is used for judging whether the signal detected by the detecting module is the same as a target signal or not;
the command module is used for outputting a control command according to the signals of the detection module and the judgment module;
the alarm module is used for monitoring the detection module, the judgment module and the command module in real time, outputting an alarm signal according to the current states of the detection module, the judgment module and the command module and stopping the machine.
Further: the alarm device also comprises a timing module, wherein the timing module is used for controlling the alarm module to alarm in a delayed manner.
The invention relates to a control method of a dual-power switching control device of a motor, which comprises the following steps:
s1, inputting a starting command;
s2, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming line cabinet is closed, if yes, an incoming line cabinet closing instruction is sent, and if not, the command module outputs an alarm signal to the alarm module;
s3, the detection module detects whether a ready signal of the high-voltage starting cabinet is closed, if yes, a closing instruction of the high-voltage starting cabinet is sent, and S4 is executed; if not, the command module outputs an alarm signal to the alarm module;
s4, the detection module detects whether the running current of the high-voltage starting cabinet is normal, and if so, the command module outputs a control command to the motor; if not, the command module sends a brake-separating command to the high-voltage dual-power-supply incoming line cabinet and the high-voltage starting cabinet and simultaneously outputs an alarm signal to the alarm module;
and S5, the detection module detects the running states of the high-voltage dual-power-supply incoming line cabinet, the high-voltage starting cabinet and the motor in real time and controls whether to switch the working state of the high-voltage dual-power-supply incoming line cabinet or not according to the running states.
Further: in S2, the detection module detects whether a ready signal of the high-voltage dual-power-supply inlet cabinet a is closed, and if so, the command module sends an inlet cabinet a closing instruction; if not, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming line cabinet B is closed, if so, the command module sends a closing instruction of the incoming line cabinet B, and if not, the command module outputs an alarm signal to the alarm module.
Further: at S5, it includes the steps of:
s51, the detection module detects whether the high-voltage starting cabinet is in a normal operation state in real time; if yes, executing S52, otherwise, continuing real-time detection;
s52, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming line cabinet A is disconnected, if yes, S53 is executed, and if not, the command module sends a switching-off command of the high-voltage dual-power-supply incoming line cabinet A;
s53, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming cabinet B is closed, if yes, S54 is executed, and if not, the command module sends a switching-off command of the high-voltage dual-power-supply incoming cabinet B;
s54, the command module sends out a switching-off command of the high-voltage dual-power-supply incoming line cabinet A and simultaneously starts a timing module;
s55, the command module sends out a switching-on command of the high-voltage dual-power-supply incoming line cabinet B;
s56, if the timing module reaches the timing time, the timing module is automatically closed, and S57 is executed; if the timing time is not reached, continuing timing;
and S57, the detection module respectively detects whether the high-voltage starting cabinet is in an abnormal operation state, if so, S51 is executed, and if not, a high-voltage starting cabinet opening instruction is sent out.
Further: in S51, the normal operation state of the high-voltage start cabinet includes disconnection of a ready signal of the high-voltage start cabinet, disconnection of an operation feedback of the high-voltage start cabinet, or an abnormal operation current of the high-voltage start cabinet.
Further: in S57, the normal operation state of the high-voltage start cabinet includes a ready signal close of the high-voltage start cabinet, an operation feedback close of the start cabinet and a normal operation current of the start cabinet.
The invention has the beneficial effects that:
the invention relates to a dual-power switching control device of a motor and a control method thereof, which are suitable for important places where power failure is not allowed so as to ensure the continuous operation of the motor and large-scale equipment. The PLC control unit judges whether standby power can be switched or not by detecting the state of the high-voltage dual-power-supply incoming line cabinet, and under the condition that the standby power is available, protection and alarm caused by power loss are delayed to ensure that the motor can continue to operate after the standby power is switched. If the standby power is unavailable, the protection and alarm caused by power loss can be processed according to the normal flow.
Drawings
Fig. 1 is a circuit block diagram of a dual power switching control device of a motor according to the present invention;
FIG. 2 is a diagram of power-on control logic;
fig. 3 is a control logic diagram of dual power supply switching.
Detailed Description
The technical solutions of the present invention are further described below with reference to the following examples, but the present invention is not limited thereto, and any modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Example 1
In this embodiment, the dual power switching control device of a motor related to this embodiment includes a high-voltage dual power supply incoming line cabinet, a high-voltage starting cabinet, a PLC control unit, and a motor, where the output terminals of a common power supply and a standby power supply are connected to the input terminal of the high-voltage dual power supply incoming line cabinet, the output terminal of the high-voltage dual power supply incoming line cabinet is connected to the input terminal of the high-voltage starting cabinet, the output terminal of the high-voltage starting cabinet is connected to the input terminal of the motor, and the high-voltage dual power supply incoming line cabinet and the high-voltage starting cabinet are respectively connected to the PLC control unit in two directions. The high-voltage dual-power incoming line cabinet comprises a high-voltage dual-power incoming line cabinet A and a high-voltage dual-power incoming line cabinet B, the output end of a common power supply is connected with the input end of the high-voltage dual-power incoming line cabinet A, and the output end of a standby power supply is connected with the input end of the high-voltage dual-power incoming line cabinet B. High-voltage dual power inlet wire cabinet: when one power supply is in power failure or under-voltage, the other normal power supply can be automatically switched to supply power within a few seconds, and the two power supplies have ready signals so as to judge whether the power supplies are available; high-voltage starting cabinet: the system adopts a high-voltage frequency conversion cabinet, a soft start cabinet or a direct start mode and the like, and has a start cabinet ready signal, a start cabinet operation feedback signal and a start cabinet operation current signal; a PLC control unit: collecting signals of a high-voltage dual-power-supply incoming line cabinet and a high-voltage starting cabinet and controlling the signals; a motor: when the power is lost briefly, the high-power motor continues to rotate for a period of time, and power supply is recovered in a very short time, so that the motor can be controlled again normally.
Example 2
The embodiment is described with reference to embodiment 1, in this embodiment, the dual power switching control device of a motor according to this embodiment includes a detection module, a judgment module, a command module, and an alarm module,
the detection module is used for detecting the current running states of the high-voltage dual-power-supply incoming line cabinet and the high-voltage starting cabinet and the current of the high-voltage starting cabinet in real time;
the judging module is used for judging whether the signal detected by the detecting module is the same as a target signal or not;
the command module is used for outputting a control command according to the signals of the detection module and the judgment module;
the alarm module is used for monitoring the detection module, the judgment module and the command module in real time, outputting an alarm signal according to the current states of the detection module, the judgment module and the command module and stopping the machine.
The alarm device also comprises a timing module, wherein the timing module is used for controlling the alarm module to alarm in a delayed manner.
Example 3
The present embodiment is described with reference to fig. 2, fig. 3 and embodiment 1, and in the present embodiment, a method for controlling a dual power supply switching control device of a motor according to the present embodiment includes the following steps:
s1, inputting a starting command;
s2, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming line cabinet is closed, if yes, an incoming line cabinet closing instruction is sent, and if not, the command module outputs an alarm signal to the alarm module;
s3, the detection module detects whether a ready signal of the high-voltage starting cabinet is closed, if yes, a closing instruction of the high-voltage starting cabinet is sent, and S4 is executed; if not, the command module outputs an alarm signal to the alarm module;
s4, the detection module detects whether the running current of the high-voltage starting cabinet is normal, and if so, the command module outputs a control command to the motor; if not, the command module sends a brake-separating command to the high-voltage dual-power-supply incoming line cabinet and the high-voltage starting cabinet and simultaneously outputs an alarm signal to the alarm module;
and S5, the detection module detects the running states of the high-voltage dual-power-supply incoming line cabinet, the high-voltage starting cabinet and the motor in real time and controls whether to switch the working state of the high-voltage dual-power-supply incoming line cabinet or not according to the running states.
By detecting the signal state of the high-voltage dual-power-supply incoming line cabinet:
1. if the high-voltage dual-power-supply incoming line cabinet-A is ready, closing the incoming line cabinet-A, if the high-voltage dual-power-supply incoming line cabinet-A is not ready, closing the incoming line cabinet-B, and if the incoming line cabinet-B is unavailable, alarming and stopping;
2. after the incoming line cabinet is switched on, detecting the continuous state of the high-voltage starting cabinet, switching on the high-voltage starting cabinet when a continuous signal is switched on, and alarming and stopping when the high-voltage starting cabinet is switched off;
3. after the high-voltage starting cabinet is switched on, the operation feedback and the starting operation current of the starting cabinet are detected in a delayed time, if the operation feedback and the starting operation current are normal, the motor is switched into normal operation, and if the operation feedback and the starting operation current are abnormal, the starting cabinet and the incoming line cabinet are switched off and are alarmed to shut down.
Example 4
In this embodiment, in S2, the detection module detects whether a ready signal of a high-voltage dual power supply inlet cabinet a is closed, and if so, the command module issues a closing instruction of the inlet cabinet a; if not, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming line cabinet B is closed, if so, the command module sends a closing instruction of the incoming line cabinet B, and if not, the command module outputs an alarm signal to the alarm module.
Example 5
The present embodiment is described with reference to embodiment 3, and in this embodiment, a method for controlling a dual power supply switching control device of a motor according to the present embodiment includes, in S5, the following steps:
s51, the detection module detects whether the high-voltage starting cabinet is in a normal operation state in real time; if yes, executing S52, otherwise, continuing real-time detection;
s52, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming line cabinet A is disconnected, if yes, S53 is executed, and if not, the command module sends a switching-off command of the high-voltage dual-power-supply incoming line cabinet A;
s53, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming cabinet B is closed, if yes, S54 is executed, and if not, the command module sends a switching-off command of the high-voltage dual-power-supply incoming cabinet B;
s54, the command module sends out a switching-off command of the high-voltage dual-power-supply incoming line cabinet A and simultaneously starts a timing module;
s55, the command module sends out a switching-on command of the high-voltage dual-power-supply incoming line cabinet B;
s56, if the timing module reaches the timing time, the timing module is automatically closed, and S57 is executed; if the timing time is not reached, continuing timing;
and S57, the detection module respectively detects whether the high-voltage starting cabinet is in an abnormal operation state, if so, S51 is executed, and if not, a high-voltage starting cabinet opening instruction is sent out.
After the power of the common power supply is lost, the control scheme is switched:
1. after the motor enters normal control, detecting a starting cabinet ready signal, a starting cabinet operation feedback signal and a starting cabinet operation current signal in real time;
2. when the signals are abnormal, judging whether the signals are caused by power failure of a power supply, if the incoming line cabinet-A is ready and not disconnected, judging that the power failure of an emergency power supply is caused, separating the starting cabinet and the incoming line cabinet and alarming to stop, and if the incoming line cabinet-A is ready and disconnected, judging that the power failure of a common power supply is caused;
3. further judging whether the power supply of the incoming cabinet-B is ready, if so, entering a power supply switching program, and if not, separating the starting cabinet and the incoming cabinet and alarming to stop;
4. firstly, the incoming cabinet-A is opened, the timer is started, after 2 seconds (reference time) of delay, the incoming cabinet-B is closed,
5. when the timer is up, re-detecting the ready of the starting cabinet, the operation feedback of the starting cabinet and the operation current signal of the starting cabinet, if the signals are normal, indicating that the power supply switching is finished; if the abnormal condition still exists, the switching fails, the switch-off of the cabinet and the incoming line cabinet is started, and the alarm is given out to stop the machine.
Example 6
In this embodiment, in S51, the normal operation state of the high voltage starting cabinet includes that the ready signal of the high voltage starting cabinet is turned off, the operation feedback of the high voltage starting cabinet is turned off, or the operation current of the high voltage starting cabinet is abnormal.
Example 9
In this embodiment, in the control method of the dual power supply switching control device of the motor according to this embodiment, in S57, the normal operation state of the high voltage start cabinet includes that the ready signal of the high voltage start cabinet is turned on, the operation feedback of the start cabinet is turned on, and the operation current of the start cabinet is normal.
Claims (9)
1. The utility model provides a dual supply switching control device of motor, its characterized in that, it includes high-pressure dual supply inlet wire cabinet, high-pressure starting cabinet, PLC the control unit and motor, power commonly used and stand-by power supply's output all with the input of high-pressure dual supply inlet wire cabinet is connected, the output of high-pressure dual supply inlet wire cabinet with the input of high-pressure starting cabinet is connected, the output of high-pressure starting cabinet with the input of motor is connected, high-pressure dual supply inlet wire cabinet with the high-pressure starting cabinet respectively with PLC the control unit both way junction.
2. The dual power switching control device of a motor according to claim 1, wherein the high-voltage dual power inlet cabinet comprises a high-voltage dual power inlet cabinet A and a high-voltage dual power inlet cabinet B, an output end of the common power supply is connected with an input end of the high-voltage dual power inlet cabinet A, and an output end of the standby power supply is connected with an input end of the high-voltage dual power inlet cabinet B.
3. The dual power switching control device of an electric machine according to claim 1, wherein the PLC control unit comprises a detection module, a judgment module, a command module and an alarm module,
the detection module is used for detecting the current running states of the high-voltage dual-power-supply incoming line cabinet and the high-voltage starting cabinet and the current of the high-voltage starting cabinet in real time;
the judging module is used for judging whether the signal detected by the detecting module is the same as a target signal or not;
the command module is used for outputting a control command according to the signals of the detection module and the judgment module;
the alarm module is used for monitoring the detection module, the judgment module and the command module in real time, outputting an alarm signal according to the current states of the detection module, the judgment module and the command module and stopping the machine.
4. The dual power switching control device of the motor as claimed in claim 3, further comprising a timing module, wherein the timing module is configured to control the alarm module to alarm in a delayed manner.
5. A control method of a dual power supply switching control device of a motor is characterized by comprising the following steps:
s1, inputting a starting command;
s2, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming line cabinet is closed, if yes, an incoming line cabinet closing instruction is sent, and if not, the command module outputs an alarm signal to the alarm module;
s3, the detection module detects whether a ready signal of the high-voltage starting cabinet is closed, if yes, a closing instruction of the high-voltage starting cabinet is sent, and S4 is executed; if not, the command module outputs an alarm signal to the alarm module;
s4, the detection module detects whether the running current of the high-voltage starting cabinet is normal, and if so, the command module outputs a control command to the motor; if not, the command module sends a brake-separating command to the high-voltage dual-power-supply incoming line cabinet and the high-voltage starting cabinet and simultaneously outputs an alarm signal to the alarm module;
and S5, the detection module detects the running states of the high-voltage dual-power-supply incoming line cabinet, the high-voltage starting cabinet and the motor in real time and controls whether to switch the working state of the high-voltage dual-power-supply incoming line cabinet or not according to the running states.
6. The method for controlling the dual power supply switching control device of the motor according to claim 5, wherein in S2, the detection module detects whether a ready signal of a high-voltage dual power supply inlet cabinet a is closed, and if so, the command module sends an inlet cabinet a closing instruction; if not, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming line cabinet B is closed, if so, the command module sends a closing instruction of the incoming line cabinet B, and if not, the command module outputs an alarm signal to the alarm module.
7. The control method of the duplicate power supply switching control device of the motor according to claim 6, characterized in that in S5, it includes the following steps:
s51, the detection module detects whether the high-voltage starting cabinet is in a normal operation state in real time; if yes, executing S52, otherwise, continuing real-time detection;
s52, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming line cabinet A is disconnected, if yes, S53 is executed, and if not, the command module sends a switching-off command of the high-voltage dual-power-supply incoming line cabinet A;
s53, the detection module detects whether a ready signal of the high-voltage dual-power-supply incoming cabinet B is closed, if yes, S54 is executed, and if not, the command module sends a switching-off command of the high-voltage dual-power-supply incoming cabinet B;
s54, the command module sends out a switching-off command of the high-voltage dual-power-supply incoming line cabinet A and simultaneously starts a timing module;
s55, the command module sends out a switching-on command of the high-voltage dual-power-supply incoming line cabinet B;
s56, if the timing module reaches the timing time, the timing module is automatically closed, and S57 is executed; if the timing time is not reached, continuing timing;
and S57, the detection module respectively detects whether the high-voltage starting cabinet is in an abnormal operation state, if so, S51 is executed, and if not, a high-voltage starting cabinet opening instruction is sent out.
8. The control method of the dual power supply switching control device of the motor according to claim 7, wherein in S51, the normal operation state of the high voltage startup cabinet comprises a ready signal of the high voltage startup cabinet being turned off, an operation feedback of the high voltage startup cabinet being turned off, or an operation current abnormality of the high voltage startup cabinet.
9. The control method of the dual power supply switching control device of the motor according to claim 7, wherein in S57, the normal operation state of the high-voltage starting cabinet comprises a ready signal closing of the high-voltage starting cabinet, an operation feedback closing of the starting cabinet and a normal operation current of the starting cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322223.1A CN112467866A (en) | 2020-11-23 | 2020-11-23 | Dual-power switching control device of motor and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322223.1A CN112467866A (en) | 2020-11-23 | 2020-11-23 | Dual-power switching control device of motor and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112467866A true CN112467866A (en) | 2021-03-09 |
Family
ID=74799612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011322223.1A Pending CN112467866A (en) | 2020-11-23 | 2020-11-23 | Dual-power switching control device of motor and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112467866A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203800695U (en) * | 2014-04-11 | 2014-08-27 | 郑州金源特变电气有限公司 | Intelligent low-voltage dual power switching power distribution cabinet control device |
| CN104578377A (en) * | 2013-10-11 | 2015-04-29 | 中兴通讯股份有限公司 | Cabinet power supply system, power supply switching control method and cabinet |
| CN206977145U (en) * | 2017-06-24 | 2018-02-06 | 山西铺龙湾煤业有限公司 | Main fan of the coal mine supplies the under-voltage release delay protection device of distribution |
| CN110138078A (en) * | 2019-06-15 | 2019-08-16 | 湖南大亚输配电设备有限公司 | 10KV dual power supply prepared auto restart automatic switching control equipment and method |
-
2020
- 2020-11-23 CN CN202011322223.1A patent/CN112467866A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578377A (en) * | 2013-10-11 | 2015-04-29 | 中兴通讯股份有限公司 | Cabinet power supply system, power supply switching control method and cabinet |
| CN203800695U (en) * | 2014-04-11 | 2014-08-27 | 郑州金源特变电气有限公司 | Intelligent low-voltage dual power switching power distribution cabinet control device |
| CN206977145U (en) * | 2017-06-24 | 2018-02-06 | 山西铺龙湾煤业有限公司 | Main fan of the coal mine supplies the under-voltage release delay protection device of distribution |
| CN110138078A (en) * | 2019-06-15 | 2019-08-16 | 湖南大亚输配电设备有限公司 | 10KV dual power supply prepared auto restart automatic switching control equipment and method |
Non-Patent Citations (1)
| Title |
|---|
| 本书编委会: "《大红山铁矿开发的综合研究和实践》", 31 July 2017, 冶金工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3021052B1 (en) | Air conditioner | |
| CN106685271B (en) | The operating status control method of brushless dual-feed motor | |
| WO2015158218A1 (en) | Motor restarting controller | |
| CN102842887B (en) | Anti-interference electricity protection method and anti-interference electricity protection device for electric equipment | |
| CN108448946B (en) | Motor restart controller and control method of motor restart controller | |
| CN105302263A (en) | Circuit with automatic power-off restarting function in equipment failure | |
| CN211556956U (en) | High-reliability direct-current power supply for transformer substation | |
| CN110044035A (en) | Variable frequency air-conditioner controller fault tolerable circuit and control method | |
| CN111404259B (en) | Security section power supply system of generator set and switching method thereof | |
| CN112467866A (en) | Dual-power switching control device of motor and control method thereof | |
| CN107591896B (en) | Safety bus power supply monitoring system of thermal power plant | |
| CN111338258A (en) | Control circuit and control method for low-voltage alternating-current control loop in power supply voltage abnormity | |
| CN104701973B (en) | The control method of parallel connection power supply conversion equipment and parallel connection power supply conversion equipment | |
| CN110190668B (en) | Hot standby speed regulation power supply system | |
| CN113495524A (en) | Integrated control system for transformer cooler | |
| CN112099340A (en) | Emergency stop redundancy control system and control method | |
| CN114865685A (en) | Quick turn-off system and control method thereof | |
| CN210092959U (en) | On-line AC uninterrupted power supply system | |
| CN212302275U (en) | Power plant water supply main pipe network control system | |
| CN218102985U (en) | Circuit for preventing motor from stopping due to soft starter fault in motor operation | |
| CN218243021U (en) | Energy storage system capable of being remotely controlled | |
| CN103227505A (en) | Security section automatic interconnected control method and device for large gas-vapor combined cycle generator set | |
| CN115632389B (en) | Shutoff device, control method thereof and photovoltaic power generation system | |
| CN220553925U (en) | Abnormal door opening processing system and high-temperature cleaner | |
| CN219717935U (en) | Voltage sag protection device suitable for direct-current bus end of low-voltage frequency converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210309 |
|
| RJ01 | Rejection of invention patent application after publication |