CN113992068A - Starting method of intelligent soft starter for yaw fan - Google Patents
Starting method of intelligent soft starter for yaw fan Download PDFInfo
- Publication number
- CN113992068A CN113992068A CN202111269640.9A CN202111269640A CN113992068A CN 113992068 A CN113992068 A CN 113992068A CN 202111269640 A CN202111269640 A CN 202111269640A CN 113992068 A CN113992068 A CN 113992068A
- Authority
- CN
- China
- Prior art keywords
- soft starter
- current
- motors
- intelligent soft
- starting
- 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
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/54—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors
- H02P1/56—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors simultaneously
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention discloses a starting method of an intelligent soft starter for a yaw fan, which comprises the following steps: s1: starting the intelligent soft starter and controlling four yaw fans to start simultaneously; s2: in the process of simultaneously starting the four motors, the current conditions of the four motors are detected by using the intelligent soft starter, and under the condition that the current of the motors does not exceed the limit value, the voltage is increased, the full voltage is given to the motors, and the soft start is realized. The invention is convenient for synchronously controlling the starting and stopping of the four yaw fans through a single intelligent soft starter, avoids the phenomenon of inconsistent rotating speed caused by asynchronous starting and stopping, is convenient for detecting the current condition of the motor in time when starting, can control the intelligent soft starter to be closed in time when phase failure or short circuit occurs, reduces the burning risk of the motor, is convenient for realizing the regulation of the rotating speed of the motor through regulating voltage, and meets the use requirement.
Description
Technical Field
The invention relates to the technical field of intelligent soft starters, in particular to a starting method of an intelligent soft starter for a yaw fan.
Background
The fan of driftage fan for being used for power generation system, because the impulse current when the motor directly starts is very big, especially large capacity motor directly starts can cause the safe operation that disturbs even harm the electric wire netting to electric wire netting and other loads, so according to different work condition, adopt many kinds of decompression start-up modes, wherein soft starter is used widely, controls opening of driftage fan through soft starter and stops, soft starter's theory of operation is: the control circuit controls the conduction angle of the three-phase anti-parallel thyristor by different methods, so that the input voltage of the motor gradually rises from zero in a preset functional relation until the start is finished, the full voltage is given to the motor, the soft start is realized, the starting torque of the motor is gradually increased and the rotating speed is also gradually increased in the soft start process, and the regulation of the rotating speed of the motor is realized;
the existing soft starter for the yaw fan does not have the function of simultaneously controlling the start and stop of four motors by a single soft starter, 4 motors are respectively controlled by the four soft starters in the prior art, the mode of independent control is difficult to ensure that the four motors are simultaneously started and stopped, so that the rotating speeds of the 4 motors are difficult to keep consistent, in the starting process, the heavy faults in the circuit are inconvenient to judge, the risk of burning out is high in the starting and stopping process, the use requirement cannot be met, the situation is comprehensively improved, and therefore the starting method of the intelligent soft starter for the yaw fan is provided for solving the problems.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a starting method of an intelligent soft starter for a yaw fan.
The invention provides a method for starting an intelligent soft starter for a yaw fan, which comprises the following steps:
s1: starting the intelligent soft starter and controlling four yaw fans to start simultaneously;
s2: in the process of simultaneously starting the four motors, the current conditions of the four motors are detected by using the intelligent soft starter, and under the condition that the current of the motors does not exceed the limit value, the voltage is increased, the full voltage is given to the motors, so that the soft start is realized;
s3: when the three-phase motor detects that the circuit is open-phase and the current is increased instantly, the intelligent soft starter is directly stopped;
s4: if the current detected in the step S3 does not increase instantly, the three-phase motor detects a short-circuit threshold set in the current, and when the short-circuit threshold is exceeded, the intelligent soft starter is directly controlled to be closed;
s5: if the current condition is detected not to exceed the short-circuit threshold value in the S4, controlling the intelligent soft starter to continue to operate;
s6: when the intelligent soft starter is in operation, the voltage reduction treatment can be carried out on the motor through the detection condition of the intelligent soft starter on the current, so that the rotation speed of the motor can be regulated.
Preferably, in S2, when the four motors are simultaneously started, the inrush current value is generally about 4 times the rated current.
Preferably, in S2, the three-phase motor is used for detecting various faults at voltage levels of alternating current 50/60Hz, rated voltage 690V or less, industrial three phases 380V and 690V, and the like.
Preferably, in S2, the rotation speeds of the four motors are controlled by adjusting the voltages, and the four motors can control the yaw fan to rotate at different speeds.
The invention is convenient for synchronously controlling the starting and stopping of the four yaw fans through a single intelligent soft starter, avoids the phenomenon of inconsistent rotating speed caused by asynchronous starting and stopping, is convenient for detecting the current condition of the motor in time when starting, can control the intelligent soft starter to be closed in time when phase failure or short circuit occurs, reduces the burning risk of the motor, is convenient for realizing the regulation of the rotating speed of the motor through regulating voltage, and meets the use requirement.
Drawings
Fig. 1 is a flowchart of a method for starting an intelligent soft starter for a yaw fan according to the present invention.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Examples
The embodiment provides a method for starting an intelligent soft starter for a yaw fan, which comprises the following steps:
s1: starting the intelligent soft starter and controlling four yaw fans to start simultaneously;
s2: in the process of simultaneously starting the four motors, the current conditions of the four motors are detected by using an intelligent soft starter, the voltage is increased under the condition that the current of the motors does not exceed the limit value, the full voltage is given to the motors, the soft start is realized, and when the four motors are simultaneously started, the impact current value is generally about 4 times of the rated current, wherein the three-phase motors are used for detecting various faults of voltage levels of alternating current 50/60Hz, below rated voltage 690V, industrial three phases of 380V, 690V and the like, the rotating speeds of the four motors can be controlled by adjusting the voltage, and the four motors can control the yaw fan to rotate at different speeds;
s3: when the three-phase motor detects that the circuit is open-phase and the current is increased instantly, the intelligent soft starter is directly stopped;
s4: if the current detected in the step S3 does not increase instantly, the three-phase motor detects a short-circuit threshold set in the current, and when the short-circuit threshold is exceeded, the intelligent soft starter is directly controlled to be closed;
s5: if the current condition is detected not to exceed the short-circuit threshold value in the S4, controlling the intelligent soft starter to continue to operate;
s6: when the intelligent soft starter operates, the voltage of the motor is subjected to voltage reduction treatment through the detection condition of the intelligent soft starter on current, so that the rotation speed of the motor is adjusted, the motor can be frequently and rapidly started and stopped through the cooperation of the three-phase motor, and the limitation of similar products on the frequency degree of the motor starting is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The starting method of the intelligent soft starter for the yaw fan is characterized by comprising the following steps:
s1: starting the intelligent soft starter and controlling four yaw fans to start simultaneously;
s2: when the four motors are started simultaneously, the current conditions of the four motors are detected by using the intelligent soft starter, and the voltage is increased and the full voltage is given to the motors under the condition that the current of the motors does not exceed the limit value;
s3: when the three-phase motor detects that the circuit is open-phase and the current is increased instantly, the intelligent soft starter is directly stopped;
s4: if the current detected in the step S3 does not increase instantly, the three-phase motor detects a short-circuit threshold set in the current, and when the short-circuit threshold is exceeded, the intelligent soft starter is directly controlled to be closed;
s5: if the current condition is detected not to exceed the short-circuit threshold value in the S4, controlling the intelligent soft starter to continue to operate;
s6: when the intelligent soft starter operates, the voltage of the motor can be reduced through the detection condition of the intelligent soft starter on the current.
2. The method of claim 1, wherein in step S2, when four motors are simultaneously started, the inrush current value is generally about 4 times the rated current.
3. The method for starting the intelligent soft starter for the yaw fan as claimed in claim 1, wherein in the step S2, the three-phase motor is used for detecting various faults of alternating current 50/60Hz, rated voltage below 690V, industrial three-phase 380V, 690V and other voltage levels.
4. The method of claim 1, wherein in step S2, the rotation speed of four motors is controlled by adjusting the voltage, and the four motors are capable of controlling the yaw fan to rotate at different speeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269640.9A CN113992068A (en) | 2021-10-29 | 2021-10-29 | Starting method of intelligent soft starter for yaw fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269640.9A CN113992068A (en) | 2021-10-29 | 2021-10-29 | Starting method of intelligent soft starter for yaw fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113992068A true CN113992068A (en) | 2022-01-28 |
Family
ID=79744134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111269640.9A Pending CN113992068A (en) | 2021-10-29 | 2021-10-29 | Starting method of intelligent soft starter for yaw fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113992068A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202031771U (en) * | 2011-04-28 | 2011-11-09 | 沈阳远大机电装备有限公司 | Independent yaw control device of wind generating set |
| CN107359828A (en) * | 2017-07-28 | 2017-11-17 | 沈阳华创风能有限公司 | A kind of yaw drive system protection device and method |
| CN207083029U (en) * | 2017-07-11 | 2018-03-09 | 浙江正泰电器股份有限公司 | Soft-starter control system |
| CN211859583U (en) * | 2020-05-14 | 2020-11-03 | 唐山成锐智能科技有限公司 | Motor protection structure |
-
2021
- 2021-10-29 CN CN202111269640.9A patent/CN113992068A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202031771U (en) * | 2011-04-28 | 2011-11-09 | 沈阳远大机电装备有限公司 | Independent yaw control device of wind generating set |
| CN207083029U (en) * | 2017-07-11 | 2018-03-09 | 浙江正泰电器股份有限公司 | Soft-starter control system |
| CN107359828A (en) * | 2017-07-28 | 2017-11-17 | 沈阳华创风能有限公司 | A kind of yaw drive system protection device and method |
| CN211859583U (en) * | 2020-05-14 | 2020-11-03 | 唐山成锐智能科技有限公司 | Motor protection structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3087664B1 (en) | Soft starter system and method of operating same | |
| EP2293426B1 (en) | Softstarter device and method for an electric motor | |
| US5929576A (en) | Protection apparatus for brushless motor | |
| US6429612B1 (en) | Fast stopping method for induction motors operating from variable frequency drives | |
| EP2675060A1 (en) | Power conversion apparatus | |
| EP2403132A2 (en) | Method and apparatus for controlling motor torque | |
| JPH0965689A (en) | Driver of induction motor | |
| EP2017951B1 (en) | Restart control of an A.C. motor drive | |
| CN109361331A (en) | A kind of ceiling fan deceleration method and device based on three-phase permanent magnet synchronous motor | |
| US11005408B2 (en) | Protective device for an electric drive system, electric drive system, and method for operating an electric drive system | |
| JPS59153496A (en) | Controller for inverter | |
| US7456601B2 (en) | System and method for starting a wound rotor motor | |
| CN113992068A (en) | Starting method of intelligent soft starter for yaw fan | |
| US10014804B1 (en) | Motor starting methods and apparatus using output voltage control based on source voltage | |
| CN107508515B (en) | Security control method and device for permanent magnet synchronous motor | |
| KR102485408B1 (en) | Method for controlling inverter | |
| CN114123934A (en) | Electric drive system locked-rotor protection method based on current integral | |
| JP5839374B1 (en) | Motor control device | |
| CN113176793A (en) | Motor servo system, control method and device thereof, electronic equipment and storage medium | |
| JP3286049B2 (en) | Variable speed power generation system | |
| CN101075796A (en) | Flexible starter for electric motor | |
| JP3744228B2 (en) | Centrifuge control device | |
| Simms et al. | Configuring the Parameters of a RVSS to Start a High Torque Induction Motor Load with a Soft Pull-In | |
| CA2354407A1 (en) | Method and device for controlling the run-down of an induction machine | |
| US11128240B1 (en) | Reduced voltage soft starter apparatus and methods using current-controlled transitions |
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 |