CN114257046A - Motor rotor state monitoring system and monitoring method - Google Patents
Motor rotor state monitoring system and monitoring method Download PDFInfo
- Publication number
- CN114257046A CN114257046A CN202111349373.6A CN202111349373A CN114257046A CN 114257046 A CN114257046 A CN 114257046A CN 202111349373 A CN202111349373 A CN 202111349373A CN 114257046 A CN114257046 A CN 114257046A
- Authority
- CN
- China
- Prior art keywords
- state
- hall
- motor rotor
- group
- hall elements
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a motor rotor state monitoring method, which comprises the following steps: fixedly installing a plurality of groups of Hall elements in the shell of the motor, and enabling a plurality of Hall sensors in each group of Hall elements to be uniformly distributed in the circumferential direction; and acquiring output voltage signals of one group of Hall elements in the energized state, and judging the state of the motor rotor according to the output voltage signals of one group of Hall elements in the energized state. The invention can monitor the state of the motor rotor, can judge whether the Hall sensor is abnormal or not, and selectively switches the Hall elements when one group of Hall elements cannot work normally, thereby solving the problem that the existing motor rotor state monitoring system cannot effectively monitor the state of the motor rotor for a long time, continuously monitoring the state of the motor rotor and ensuring the long-time effective running of the motor. Correspondingly, the invention further provides a motor rotor state monitoring system.
Description
Technical Field
The invention relates to the technical field of motor equipment, in particular to a motor rotor state monitoring system and a monitoring method.
Background
An electric machine, also called a motor, is an electromagnetic device that realizes electric energy conversion or transmission according to the electromagnetic induction principle. The electric machine includes a stator and a rotor, and usually generates a driving torque by reversing rotation of the rotor, so as to convert electric energy into mechanical energy and provide a power source for various machines.
In existing motor rotor condition monitoring systems, the motor rotor position and motor rotor steering are often detected by a set of hall sensors mounted inside the motor housing. However, during the operation of the motor, the problem of damage to the hall sensor is easy to occur. Because only a set of hall sensor is installed to motor housing inside, so when a certain hall sensor damages, need shut down and change damaging hall sensor, can continue to monitor the electric motor rotor state. Thus, the state of the motor rotor cannot be effectively monitored for a long time.
Disclosure of Invention
Based on the above, in order to solve the problem that the existing motor rotor state monitoring system cannot effectively monitor the state of the motor rotor for a long time, the invention provides a motor rotor state monitoring system and a monitoring method, and the specific technical scheme is as follows:
a motor rotor state monitoring system comprises a plurality of groups of Hall elements and a processor.
Every group hall subassembly all includes a plurality of hall sensor, and is a plurality of hall sensor fixed mounting just is circumference evenly distributed in motor housing's inside.
The processor is used for receiving the output voltage signals of one group of Hall elements and judging the state of the motor rotor according to the output voltage signals of the one group of Hall elements;
wherein the motor rotor state comprises a motor rotor position and a motor rotor steering.
When the Hall sensor can work normally, when the rotor magnetic pole passes by the Hall sensor, the output voltage of the Hall sensor will generate level change. Therefore, whether the Hall sensors are abnormal or not can be judged by monitoring whether the output voltage of one group of the Hall sensors generates level change or not. Meanwhile, the position of the motor rotor can be judged by monitoring the level change condition of the output voltage of a group of the plurality of Hall sensors.
Because one group of Hall elements comprises a plurality of Hall sensors, the sequence of the magnetic poles of the rotor passing through the Hall sensors can be judged by monitoring the level change of the output voltage of the Hall sensors, and the rotation of the motor rotor can be judged according to the sequence.
The motor rotor state monitoring system comprises a plurality of groups of Hall elements, and the motor rotor state can be judged by utilizing a plurality of Hall sensors which are in an electrified state. When one or more Hall sensors are abnormal and a corresponding group of Hall elements cannot be used for monitoring the state of the motor rotor, the state of the motor rotor can be continuously monitored by using the normal Hall elements by switching one group of the rest Hall elements to the power-on state.
In summary, through the motor rotor state monitoring system, the state of the motor rotor can be monitored, whether the hall sensor is abnormal or not can be judged, and the hall elements can be selectively switched when one group of the hall elements cannot normally work, so that the problem that the existing motor rotor state monitoring system cannot effectively monitor the state of the motor rotor for a long time is solved.
Further, the processor includes:
the driving voltage units correspond to the multiple groups of Hall elements one by one and are used for respectively driving the multiple Hall sensors of each group of Hall elements to work;
the feedback voltage unit corresponds to the multiple groups of Hall elements one by one and is used for receiving the output voltages of the Hall sensors of each group of Hall elements;
the state judgment unit is used for acquiring and judging the state of the motor rotor according to the working states of the plurality of groups of Hall elements and the output voltages of the plurality of Hall sensors of each group of Hall elements;
wherein the operating state comprises a power-on state and a power-off state.
Further, the processor further comprises:
the switching unit is used for generating a switching instruction and randomly sending the switching instruction to a driving voltage unit corresponding to a group of Hall elements which are in a power-off state when a plurality of Hall sensors in the group of Hall elements which are in the power-on state are abnormal;
and the driving voltage unit is also used for driving the corresponding Hall element to switch the working state according to the switching instruction.
Further, the processor further comprises:
and the direction judging unit is used for judging the motor rotor to turn according to the output voltage signals of a plurality of Hall sensors in a group of Hall elements in the electrified state.
A motor rotor state monitoring method comprises the following steps:
fixedly installing a plurality of groups of Hall elements in the shell of the motor, and enabling a plurality of Hall sensors in each group of Hall elements to be uniformly distributed in the circumferential direction;
acquiring output voltage signals of one group of Hall elements in an electrified state and judging the state of the motor rotor according to the output voltage signals of one group of Hall elements in the electrified state;
wherein the motor rotor state comprises a motor rotor position and a motor rotor steering.
Whether the output voltage of one group of the plurality of Hall sensors generates level change or not can be monitored, and whether the Hall sensors are abnormal or not and the position of the motor rotor can be judged.
And because one group of Hall elements comprises a plurality of Hall sensors, the sequence of the magnetic poles of the rotor passing through the plurality of Hall sensors can be judged by monitoring the level change of the output voltage of the plurality of Hall sensors, and the rotation of the motor rotor can be judged according to the sequence.
When one or more Hall sensors in one group in the electrified state are abnormal, so that the corresponding group of Hall elements cannot be used for monitoring the state of the motor rotor, one group of the rest Hall elements in the normal state is switched to the electrified state, and the state of the motor rotor can be continuously monitored by using the Hall elements in the normal state.
In summary, by the motor rotor state monitoring method, the state of the motor rotor can be monitored, whether the hall sensors are abnormal or not can be judged, and the hall elements can be selectively switched when one group of the hall elements cannot normally work, so that the problem that the existing motor rotor state monitoring system cannot effectively monitor the state of the motor rotor for a long time is solved, the state of the motor rotor can be continuously monitored, and the long-time effective operation of the motor is ensured.
Further, the specific method for judging the state of the motor rotor by the output voltage signals of the group of hall elements in the energized state comprises the following steps:
the driving voltage unit respectively drives a plurality of Hall sensors of a plurality of groups of Hall elements to work;
the feedback voltage unit receives the output voltages of the Hall sensors of each group of Hall elements;
the state judgment unit judges the state of the motor rotor according to the working state of each group of Hall elements and the output voltage of the Hall sensors of each group of Hall elements;
wherein the operating state comprises a power-on state and a power-off state.
Further, the motor rotor state monitoring method further comprises the following steps:
when a plurality of Hall sensors in a group of Hall elements in a power-on state are abnormal, a switching unit generates a switching instruction and randomly sends the switching instruction to a driving voltage unit corresponding to the group of Hall elements in the power-off state;
and the driving voltage unit drives the corresponding Hall element to switch the working state according to the switching instruction.
Further, the motor rotor state monitoring method further comprises the following steps:
the direction judging unit judges the motor rotor to turn according to the output voltage signals of a plurality of Hall sensors in a group of Hall elements in an electrified state.
A computer-readable storage medium storing a computer program which, when executed, implements a method of monitoring a condition of a rotor of an electric machine.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a schematic overall flow chart of a motor rotor state monitoring method according to an embodiment of the present invention;
FIG. 2 is a second schematic flow chart illustrating a method for monitoring a rotor state of a motor according to an embodiment of the present invention;
fig. 3 is a third schematic flow chart of a method for monitoring a state of a rotor of an electric machine according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
The invention provides a motor rotor state monitoring system which comprises a plurality of groups of Hall elements and a processor.
Every group hall subassembly all includes a plurality of hall sensor, and is a plurality of hall sensor fixed mounting just is circumference evenly distributed in motor housing's inside. The processor is used for receiving the output voltage signals of one group of Hall elements and judging the state of the motor rotor according to the output voltage signals of the group of Hall elements.
Specifically, when the magnetic pole of the motor rotor passes by the hall sensor, the voltage output end of the hall sensor outputs a corresponding high level or a corresponding low level according to the difference of the magnetic pole polarity. That is, when the motor rotor rotates, there is a gap between the motor rotor magnetic pole and the hall sensor, which is located between the motor rotor and the stator.
Wherein the motor rotor state comprises a motor rotor position and a motor rotor steering.
When the Hall sensor can work normally, when the rotor magnetic pole passes by the Hall sensor, the output voltage of the Hall sensor will generate level change. Therefore, whether the Hall sensors are abnormal or not can be judged by monitoring whether the output voltage of one group of the Hall sensors generates level change or not. Meanwhile, the position of the motor rotor can be judged by monitoring the level change condition of the output voltage of a group of the plurality of Hall sensors.
Because one group of Hall elements comprises a plurality of Hall sensors, the sequence of the magnetic poles of the rotor passing through the Hall sensors can be judged by monitoring the level change of the output voltage of the Hall sensors, and the rotation of the motor rotor can be judged according to the sequence.
The motor rotor state monitoring system comprises a plurality of groups of Hall elements, and the motor rotor state can be judged by utilizing a plurality of Hall sensors which are in an electrified state. When one or more Hall sensors are abnormal and a corresponding group of Hall elements cannot be used for monitoring the state of the motor rotor, the state of the motor rotor can be continuously monitored by using the normal Hall elements by switching one group of the rest Hall elements to the power-on state.
In summary, through the motor rotor state monitoring system, the state of the motor rotor can be monitored, whether the hall sensor is abnormal or not can be judged, and the hall elements can be selectively switched when one group of the hall elements cannot normally work, so that the problem that the existing motor rotor state monitoring system cannot effectively monitor the state of the motor rotor for a long time is solved.
Generally speaking, the greater the number of hall sensors in a group of hall elements, the more effective and accurate the monitoring of the rotor position of the motor. In the actual operation of the motor, the problem that the state of the motor rotor cannot be effectively monitored through a group of hall elements exists, namely, the problem that the position of the motor rotor cannot be accurately monitored in time exists when the number of hall sensors in the group of hall elements is small.
In order to solve the above problem, in one embodiment, the processor includes a driving voltage unit, a feedback voltage unit, and a state determination unit.
The driving voltage unit corresponds to the plurality of groups of Hall elements one by one and is used for respectively driving the plurality of Hall sensors of each group of Hall elements to work. That is, the hall sensors in the hall elements of different groups are electrically connected to different drive voltage units. One group or a plurality of groups of Hall elements can be driven to work by controlling the output of different driving voltage units.
The state judging unit is in signal connection with different driving voltage units. And different driving voltage units feed back the working states of the multiple groups of Hall elements to the state judgment unit.
The feedback voltage unit corresponds to the plurality of groups of Hall elements one by one and is used for receiving the output voltage of the plurality of Hall sensors of each group of Hall elements. The feedback voltage unit monitors the output voltages of the plurality of groups of Hall elements and the plurality of Hall sensors and transmits the output voltages of the plurality of groups of Hall elements and the plurality of Hall sensors to the state judgment unit.
And the state judgment unit acquires and judges the state of the motor rotor according to the working states of the plurality of groups of Hall elements and the output voltages of the plurality of Hall sensors of each group of Hall elements.
Wherein the operating state comprises a power-on state and a power-off state.
Different groups of Hall elements are driven by different driving voltage units, one or more groups of Hall elements are driven to be electrified according to actual needs, and the positions of the motor rotor can be monitored by utilizing a plurality of Hall sensors in the plurality of groups of Hall elements, so that the problem that the positions of the motor rotor can not be accurately monitored in time when the number of the Hall sensors in one group of Hall elements is small is solved.
In the embodiment, the plurality of hall sensors in each group of hall elements are uniformly distributed in the circumferential direction and the plurality of hall sensors in different groups of hall elements are staggered with each other. So, utilize a plurality of hall sensor among the multiunit hall element to monitor the electric motor rotor magnetic pole, electric motor rotor monitoring system not only can judge that hall sensor exists unusually to select to switch to hall element when one of them group hall element can't normally work, solved current electric motor rotor state monitoring system and can't carry out the problem of long-time effective monitoring to electric motor rotor state, can also carry out more timely accurate monitoring to electric motor rotor position.
In one embodiment, the processor further comprises a switching unit.
The switching unit is used for generating a switching instruction and randomly sending the switching instruction to a driving voltage unit corresponding to a group of Hall elements in a power-off state when a plurality of Hall sensors in the group of Hall elements in the power-on state are abnormal. And the driving voltage unit is also used for driving the corresponding Hall element to switch the working state according to the switching instruction.
Specifically, according to the switching instruction, the driving voltage unit corresponding to the group of hall elements with the abnormal hall sensor drives the corresponding hall element to be powered off, and the driving voltage unit corresponding to the group of hall elements which are in the power-off state and receive the switching instruction drives the corresponding hall element to be powered on, so that switching among different groups of hall elements is completed, and the motor rotor state monitoring system can continue to effectively monitor the state of the motor rotor for a long time without stopping the motor rotor.
In one embodiment, the processor further comprises a direction determination unit.
The direction judging unit is used for judging the motor rotor to turn according to output voltage signals of a plurality of Hall sensors in a group of Hall elements in an electrified state.
Specifically, the direction determination unit determines the motor rotor steering according to the level change rule of the output voltages of the plurality of hall sensors.
Preferably, a plurality of hall sensors in each group of hall elements are marked with corresponding labels, and the labels are gradually increased or decreased in a clockwise or counterclockwise direction, so that the system can conveniently judge the motor rotor steering according to the level change rule of the output voltages of the plurality of hall sensors.
In one embodiment, as shown in fig. 1, a method for monitoring the rotor state of an electric machine includes the following steps:
fixedly installing a plurality of groups of Hall elements in the shell of the motor, and enabling a plurality of Hall sensors in each group of Hall elements to be uniformly distributed in the circumferential direction;
acquiring output voltage signals of one group of Hall elements in an electrified state and judging the state of the motor rotor according to the output voltage signals of one group of Hall elements in the electrified state;
wherein the motor rotor state comprises a motor rotor position and a motor rotor steering.
Whether the output voltage of one group of the plurality of Hall sensors generates level change or not can be monitored, and whether the Hall sensors are abnormal or not and the position of the motor rotor can be judged.
And because one group of Hall elements comprises a plurality of Hall sensors, the sequence of the magnetic poles of the rotor passing through the plurality of Hall sensors can be judged by monitoring the level change of the output voltage of the plurality of Hall sensors, and the rotation of the motor rotor can be judged according to the sequence.
When one or more Hall sensors in one group in the electrified state are abnormal, so that the corresponding group of Hall elements cannot be used for monitoring the state of the motor rotor, one group of the rest Hall elements in the normal state is switched to the electrified state, and the state of the motor rotor can be continuously monitored by using the Hall elements in the normal state.
In summary, by the motor rotor state monitoring method, the state of the motor rotor can be monitored, whether the hall sensors are abnormal or not can be judged, and the hall elements can be selectively switched when one group of the hall elements cannot normally work, so that the problem that the existing motor rotor state monitoring system cannot effectively monitor the state of the motor rotor for a long time is solved, the state of the motor rotor can be continuously monitored, and the long-time effective operation of the motor is ensured.
In one embodiment, as shown in fig. 2, the specific method for determining the rotor state of the motor by the output voltage signals of one group of hall elements in the energized state includes the following steps:
the driving voltage unit respectively drives a plurality of Hall sensors of a plurality of groups of Hall elements to work;
the feedback voltage unit receives the output voltages of the Hall sensors of each group of Hall elements;
the state judgment unit judges the state of the motor rotor according to the working state of each group of Hall elements and the output voltage of the Hall sensors of each group of Hall elements;
the working state comprises a power-on state and a power-off state, the plurality of Hall sensors in each group of Hall elements are circumferentially and uniformly distributed, and the plurality of Hall sensors of different groups of Hall elements are staggered mutually. Therefore, the motor rotor magnetic poles are monitored by the aid of the Hall sensors in the multiple groups of Hall elements, the motor rotor monitoring method can judge whether the Hall sensors are abnormal or not, the Hall elements are selectively switched when one group of Hall elements cannot normally work, the problem that an existing motor rotor state monitoring system cannot effectively monitor the state of the motor rotor for a long time is solved, and the position of the motor rotor can be monitored more timely and accurately.
In one embodiment, as shown in fig. 3, the method for monitoring the rotor state of the motor further includes the following steps:
when a plurality of Hall sensors in a group of Hall elements in a power-on state are abnormal, a switching unit generates a switching instruction and randomly sends the switching instruction to a driving voltage unit corresponding to the group of Hall elements in the power-off state;
and the driving voltage unit drives the corresponding Hall element to switch the working state according to the switching instruction.
In one embodiment, the method for monitoring the state of the rotor of the motor further comprises the following steps:
the direction judging unit judges the motor rotor to turn according to the output voltage signals of a plurality of Hall sensors in a group of Hall elements in an electrified state.
In one embodiment, a computer-readable storage medium stores a computer program which, when executed, implements a motor rotor condition monitoring method as described.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A rotor condition monitoring system for an electric machine, the rotor condition monitoring system comprising:
each group of Hall components comprises a plurality of Hall sensors which are fixedly arranged in the motor shell and are uniformly distributed in the circumferential direction;
the processor is used for receiving the output voltage signals of one group of Hall elements and judging the state of the motor rotor according to the output voltage signals of the one group of Hall elements;
wherein the motor rotor state comprises a motor rotor position and a motor rotor steering.
2. A motor rotor condition monitoring system as recited in claim 1, wherein said processor comprises:
the driving voltage units correspond to the multiple groups of Hall elements one by one and are used for respectively driving the multiple Hall sensors of each group of Hall elements to work;
the feedback voltage unit corresponds to the multiple groups of Hall elements one by one and is used for receiving the output voltages of the Hall sensors of each group of Hall elements;
the state judgment unit is used for acquiring and judging the state of the motor rotor according to the working states of the plurality of groups of Hall elements and the output voltages of the plurality of Hall sensors of each group of Hall elements;
wherein the operating state comprises a power-on state and a power-off state.
3. A motor rotor condition monitoring system as recited in claim 2, wherein said processor further comprises:
the switching unit is used for generating a switching instruction and randomly sending the switching instruction to a driving voltage unit corresponding to a group of Hall elements which are in a power-off state when a plurality of Hall sensors in the group of Hall elements which are in the power-on state are abnormal;
and the driving voltage unit is also used for driving the corresponding Hall element to switch the working state according to the switching instruction.
4. The motor rotor condition monitoring system of claim 1, wherein the processor further comprises:
and the direction judging unit is used for judging the motor rotor to turn according to the output voltage signals of a plurality of Hall sensors in a group of Hall elements in the electrified state.
5. A motor rotor state monitoring method is characterized by comprising the following steps:
fixedly installing a plurality of groups of Hall elements in the shell of the motor, and enabling a plurality of Hall sensors in each group of Hall elements to be uniformly distributed in the circumferential direction;
acquiring output voltage signals of one group of Hall elements in an electrified state and judging the state of the motor rotor according to the output voltage signals of one group of Hall elements in the electrified state;
wherein the motor rotor state comprises a motor rotor position and a motor rotor steering.
6. The method for monitoring the state of the rotor of the motor as claimed in claim 5, wherein the specific method for judging the state of the rotor of the motor by the output voltage signals of the Hall elements in the energized state comprises the following steps:
the driving voltage unit respectively drives a plurality of Hall sensors of a plurality of groups of Hall elements to work;
the feedback voltage unit receives the output voltages of the Hall sensors of each group of Hall elements;
the state judgment unit judges the state of the motor rotor according to the working state of each group of Hall elements and the output voltage of the Hall sensors of each group of Hall elements;
wherein the operating state comprises a power-on state and a power-off state.
7. The method of monitoring the condition of the rotor of an electric machine according to claim 6, further comprising the steps of:
when a plurality of Hall sensors in a group of Hall elements in a power-on state are abnormal, a switching unit generates a switching instruction and randomly sends the switching instruction to a driving voltage unit corresponding to the group of Hall elements in the power-off state;
and the driving voltage unit drives the corresponding Hall element to switch the working state according to the switching instruction.
8. The method of monitoring the condition of the rotor of an electric machine according to claim 5, further comprising the steps of:
the direction judging unit judges the motor rotor to turn according to the output voltage signals of a plurality of Hall sensors in a group of Hall elements in an electrified state.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed, implements a method of monitoring a condition of a rotor of an electric machine according to any one of claims 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349373.6A CN114257046A (en) | 2021-11-15 | 2021-11-15 | Motor rotor state monitoring system and monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349373.6A CN114257046A (en) | 2021-11-15 | 2021-11-15 | Motor rotor state monitoring system and monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114257046A true CN114257046A (en) | 2022-03-29 |
Family
ID=80790902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111349373.6A Pending CN114257046A (en) | 2021-11-15 | 2021-11-15 | Motor rotor state monitoring system and monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114257046A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306976A (en) * | 2011-09-01 | 2012-01-04 | 孙世广 | Motor with a plurality of groups of Hall sensors |
| KR20140100637A (en) * | 2013-02-06 | 2014-08-18 | 한라비스테온공조 주식회사 | Hall sensor module and motor control method using the same |
| KR20170054085A (en) * | 2015-11-09 | 2017-05-17 | 엘지이노텍 주식회사 | Detecting device for sensing the rotor position and method thereof |
| CN206759281U (en) * | 2017-06-02 | 2017-12-15 | 无锡奥征科技有限公司 | Multigroup Hall switch motor |
| CN107749724A (en) * | 2016-07-05 | 2018-03-02 | 舍弗勒技术股份两合公司 | For the method and apparatus for the position for determining and/or controlling motor |
| CN108134486A (en) * | 2018-02-13 | 2018-06-08 | 内蒙古幸汇国创重工有限公司 | One kind is based on redundant sensor motor speed acquisition system |
| CN109742919A (en) * | 2019-01-30 | 2019-05-10 | 辽宁国信科技有限公司 | Switched reluctance machines sensor redundancy system and automatic switching method |
| CN111446821A (en) * | 2020-03-25 | 2020-07-24 | 武汉迈信电气技术有限公司 | Magnetic coding multi-Hall redundancy device |
| JP2021078162A (en) * | 2019-10-31 | 2021-05-20 | アルモテクノス株式会社 | Three-phase brushless DC motor |
-
2021
- 2021-11-15 CN CN202111349373.6A patent/CN114257046A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306976A (en) * | 2011-09-01 | 2012-01-04 | 孙世广 | Motor with a plurality of groups of Hall sensors |
| KR20140100637A (en) * | 2013-02-06 | 2014-08-18 | 한라비스테온공조 주식회사 | Hall sensor module and motor control method using the same |
| KR20170054085A (en) * | 2015-11-09 | 2017-05-17 | 엘지이노텍 주식회사 | Detecting device for sensing the rotor position and method thereof |
| CN107749724A (en) * | 2016-07-05 | 2018-03-02 | 舍弗勒技术股份两合公司 | For the method and apparatus for the position for determining and/or controlling motor |
| CN206759281U (en) * | 2017-06-02 | 2017-12-15 | 无锡奥征科技有限公司 | Multigroup Hall switch motor |
| CN108134486A (en) * | 2018-02-13 | 2018-06-08 | 内蒙古幸汇国创重工有限公司 | One kind is based on redundant sensor motor speed acquisition system |
| CN109742919A (en) * | 2019-01-30 | 2019-05-10 | 辽宁国信科技有限公司 | Switched reluctance machines sensor redundancy system and automatic switching method |
| JP2021078162A (en) * | 2019-10-31 | 2021-05-20 | アルモテクノス株式会社 | Three-phase brushless DC motor |
| CN111446821A (en) * | 2020-03-25 | 2020-07-24 | 武汉迈信电气技术有限公司 | Magnetic coding multi-Hall redundancy device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101427456B (en) | Control system for an electric motor | |
| US8704467B2 (en) | Inverter device for washing machine | |
| JP4524661B2 (en) | Power generation control device | |
| US9088236B2 (en) | Method for controlling a permanent magnet synchronous electric motor at steady-state, electronic device for implementing said method and motor assembly comprising said electronic device | |
| US20070138899A1 (en) | Detection of the amount of wear on a motor drive system | |
| KR101284343B1 (en) | Cooling fan management system for fuel cell vehicle and method thereof | |
| NO341230B1 (en) | Scalable electric motor disc stack with multipole stator | |
| CN105656359A (en) | Electric tool and brake circuit suitable for motor | |
| JP2017535226A (en) | Battery monitoring system | |
| US10181768B2 (en) | Energy harvester and rotating shaft vibration sensor | |
| CN101106349A (en) | Control apparatus of brushless DC motor and control method thereof | |
| CN109994998B (en) | Motor back electromotive force protection method, system, device and storage medium | |
| CN109391002B (en) | Battery-operated device and method for operating same | |
| CN114257046A (en) | Motor rotor state monitoring system and monitoring method | |
| CN112012914B (en) | Anti-reverse control device, magnetic suspension system and anti-reverse control method thereof | |
| JP6457589B2 (en) | Abnormality diagnosis apparatus and abnormality diagnosis method | |
| CN109072853B (en) | Method and system for controlling an integrated starter-generator | |
| CN110649841B (en) | Integrated control device, system and method based on system of magnetic bearing and motor | |
| KR101289159B1 (en) | Apparatus for protecting magnetic bearing and apparatus for motor having the same | |
| CN103956940A (en) | Against-wind start control method and device of direct current motor in outdoor unit of air conditioner | |
| US7786692B2 (en) | Signal transmission apparatus of a DC brushless motor for a ceiling fan | |
| CN106549611B (en) | The detection method and device of rotor | |
| CN100353633C (en) | Excess temperature protector for driving motor of electric automobile | |
| CN211968046U (en) | Cooling fan detection device for banburying | |
| CN109802603A (en) | A kind of three-phase motor braking method and device |
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 |