CN111056392A - Testing device and testing method for elevator permanent magnet synchronous traction machine - Google Patents
Testing device and testing method for elevator permanent magnet synchronous traction machine Download PDFInfo
- Publication number
- CN111056392A CN111056392A CN201911292134.4A CN201911292134A CN111056392A CN 111056392 A CN111056392 A CN 111056392A CN 201911292134 A CN201911292134 A CN 201911292134A CN 111056392 A CN111056392 A CN 111056392A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- magnet synchronous
- traction machine
- synchronous traction
- elevator
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a testing device of an elevator permanent magnet synchronous traction machine, which comprises: the three series resistors are respectively connected in series with the lead wires of the three-phase winding of the permanent magnet synchronous traction machine of the elevator; an auxiliary motor having an output shaft coaxially connected to an output shaft of the permanent magnet synchronous traction machine; and the torque sensor is connected between the output shaft of the permanent magnet synchronous traction machine and the output shaft of the auxiliary motor. The lead wires of the three-phase winding of the permanent magnet synchronous traction machine are connected together in a star connection mode, the auxiliary motor is used for driving the permanent magnet synchronous traction machine to rotate at different speeds, and the torque sensor is used for detecting torque values generated when the permanent magnet synchronous traction machine rotates at different speeds, so that a torque-speed curve of the permanent magnet synchronous traction machine can be obtained. Therefore, a designer can select a reasonable series resistance value for the star sealing circuit of the permanent magnet synchronous traction machine based on the tested torque-speed curve of the permanent magnet synchronous traction machine, and the operation safety of the elevator is improved.
Description
Technical Field
The invention relates to a testing device and a testing method for an elevator permanent magnet synchronous traction machine.
Background
In the prior art, when the electromechanical brake braking torque of the elevator is insufficient or fails, and the weight on the car side and the weight on the counterweight side of the elevator are in an unbalanced state, the suspension system can cause the car to overspeed under the action of gravity, thereby bringing about a serious safety risk. In order to eliminate such a risk, in the permanent magnet synchronous traction machine, after a power supply circuit of the permanent magnet synchronous traction machine is cut off, three-phase windings of the permanent magnet synchronous traction machine are connected in a star connection manner by using series resistors to limit the speed of a car, which is a so-called star blocking brake technology of the permanent magnet synchronous traction machine.
For the star-closing braking technology of the permanent magnet synchronous tractor, how to select the resistance value of the series resistor is a technical problem, but no clear and feasible design scheme exists in the prior art. If the selection is not proper, frequent elevator faults can be caused, and contact burning of the star-sealing contactor and damage of a frequency converter and a main machine coil can be caused if the selection is not proper, so that the speed of the car can not be reduced sometimes, and safety risks are caused.
Disclosure of Invention
An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.
According to an aspect of the present invention, there is provided a testing apparatus of an elevator permanent magnet synchronous traction machine, including: the three series resistors are respectively connected in series with the lead wires of the three-phase winding of the permanent magnet synchronous traction machine of the elevator; an auxiliary motor having an output shaft coaxially connected to an output shaft of the permanent magnet synchronous traction machine; and the torque sensor is connected between the output shaft of the permanent magnet synchronous traction machine and the output shaft of the auxiliary motor. The lead wires of the three-phase winding of the permanent magnet synchronous traction machine are connected together in a star connection mode, the auxiliary motor is used for driving the permanent magnet synchronous traction machine to rotate at different speeds, and the torque sensor is used for detecting torque values generated when the permanent magnet synchronous traction machine rotates at different speeds, so that a torque-speed curve of the permanent magnet synchronous traction machine can be obtained.
According to an exemplary embodiment of the invention, the testing device of the elevator permanent magnet synchronous traction machine further comprises a current sensor which is connected in series on a lead wire of one of three-phase windings of the permanent magnet synchronous traction machine; the current sensor is used for detecting the current value generated when the permanent magnet synchronous traction machine rotates at different speeds, so that the impact current-speed curve of the permanent magnet synchronous traction machine can be obtained.
According to another exemplary embodiment of the present invention, the series resistance is a variable resistance whose resistance value is adjustable, so that a plurality of torque-speed curves respectively corresponding to different series resistance values can be obtained by changing the resistance value of the series resistance.
According to another exemplary embodiment of the present invention, the series resistance is a variable resistance whose resistance value is adjustable, so that a plurality of rush current-speed curves respectively corresponding to different series resistance values can be obtained by changing the resistance value of the series resistance.
According to another exemplary embodiment of the present invention, the testing apparatus of an elevator permanent magnet synchronous traction machine further includes a coaxial coupling through which the torque sensor is connected between the output shaft of the permanent magnet synchronous traction machine and the output shaft of the auxiliary motor.
According to another exemplary embodiment of the present invention, the testing apparatus of an elevator permanent magnet synchronous traction machine further includes a motor controller for controlling a rotation speed of the auxiliary motor so that the auxiliary motor can drive the permanent magnet synchronous traction machine to rotate at different speeds.
According to another exemplary embodiment of the present invention, the testing apparatus of an elevator permanent magnet synchronous traction machine further includes a frequency converter, via which the auxiliary motor is electrically connected to an alternating current power source.
According to another aspect of the present invention, there is provided a method for testing a permanent magnet synchronous traction machine of an elevator, comprising the steps of:
s100: providing a testing device of the elevator permanent magnet synchronous traction machine;
s200: the auxiliary motor is used for driving the permanent magnet synchronous traction machine to rotate at different speeds respectively, and the current value of the current sensor and the torque value of the torque sensor are read;
s300: and calculating a torque-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine corresponding to the initial series resistance value according to the read current value and the read torque value and the speed of the permanent magnet synchronous traction machine.
According to an exemplary embodiment of the invention, the aforementioned method further comprises the steps of:
s400: changing a resistance value of the series resistance;
s500: the auxiliary motor is used for driving the permanent magnet synchronous traction machine to rotate at different speeds respectively, and the current value of the current sensor and the torque value of the torque sensor are read;
s600: and calculating a torque-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine corresponding to the series resistance value after the change according to the read current value and the read torque value and the speed of the permanent magnet synchronous traction machine.
According to another exemplary embodiment of the present invention, the aforementioned method further comprises the steps of:
s700: and repeatedly executing the steps S400 to S600 so as to calculate a plurality of torque-speed curves and a plurality of impact current-speed curves of the permanent magnet synchronous traction machine, wherein the torque-speed curves and the impact current-speed curves respectively correspond to different series resistance values.
According to another exemplary embodiment of the present invention, in the aforementioned step S300, a moment-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine corresponding to the initial series resistance value are calculated by a method of computer simulation calculation.
According to another exemplary embodiment of the present invention, in the aforementioned step S600, a moment-speed curve and a rush current-speed curve of the permanent magnet synchronous traction machine corresponding to the series resistance value after the change are calculated by a method of computer simulation calculation.
In each of the foregoing exemplary embodiments according to the present invention, a designer can select a reasonable series resistance value for the star circuit of the permanent magnet synchronous traction machine based on the tested torque-speed curve of the permanent magnet synchronous traction machine, thereby improving the operation safety of the elevator.
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
Drawings
Fig. 1 shows a schematic diagram of a star sealing circuit of an elevator permanent magnet synchronous traction machine according to one embodiment of the present invention;
fig. 2 shows a schematic view of a testing apparatus of an elevator permanent magnet synchronous traction machine according to one embodiment of the present invention;
fig. 3 shows a plurality of torque-speed curves respectively corresponding to different series resistance values tested for an elevator permanent magnet synchronous traction machine according to an embodiment of the present invention;
fig. 4 shows a plurality of current peak-speed curves respectively corresponding to different series resistance values tested for the elevator permanent magnet synchronous traction machine according to one embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to one general technical concept of the present invention, there is provided a testing apparatus of an elevator permanent magnet synchronous traction machine, including: the three series resistors are respectively connected in series with the lead wires of the three-phase winding of the permanent magnet synchronous traction machine of the elevator; an auxiliary motor having an output shaft coaxially connected to an output shaft of the permanent magnet synchronous traction machine; and the torque sensor is connected between the output shaft of the permanent magnet synchronous traction machine and the output shaft of the auxiliary motor. The lead wires of the three-phase winding of the permanent magnet synchronous traction machine are connected together in a star connection mode, the auxiliary motor is used for driving the permanent magnet synchronous traction machine to rotate at different speeds, and the torque sensor is used for detecting torque values generated when the permanent magnet synchronous traction machine rotates at different speeds, so that a torque-speed curve of the permanent magnet synchronous traction machine can be obtained.
Fig. 1 shows a schematic diagram of a star circuit of an elevator permanent magnet synchronous traction machine according to one embodiment of the present invention.
As shown in fig. 1, in the illustrated embodiment, the star circuit of the elevator permanent magnet synchronous traction machine includes star contactors 11 and series resistors 12 respectively connected in series to the lead wires of the three-phase winding of the permanent magnet synchronous traction machine 20.
As shown in fig. 1, in the illustrated embodiment, the star contactor 11 cuts off the power supply circuit between the permanent magnet synchronous traction machine 20 and the elevator inverter 30 when the electromechanical brake braking torque of the elevator is insufficient or fails and the elevator car side weight and counterweight side weight are in an unbalanced state. After the power supply circuit between the permanent magnet synchronous traction machine 20 and the elevator inverter 30 is cut off, the star contactor 11 star-connects the three-phase windings of the permanent magnet synchronous traction machine 20 in a star connection using the series resistor 12 to limit the speed of the car.
Fig. 2 shows a schematic view of a testing apparatus of an elevator permanent magnet synchronous traction machine according to one embodiment of the present invention.
As shown in fig. 2, in the illustrated embodiment, the testing apparatus of the elevator permanent magnet synchronous traction machine mainly includes three series resistors 12, an auxiliary motor 40, and a torque sensor 2. The three series resistors 12 are connected in series to lead wires of a three-phase winding 21 of a permanent magnet synchronous traction machine 20 of the elevator. An output shaft 40a of the auxiliary motor 40 is coaxially connected to the output shaft 20a of the permanent magnet synchronous traction machine 20. The torque sensor 2 is connected between the output shaft 20a of the permanent magnet synchronous traction machine 20 and the output shaft 40a of the assist motor 40.
As shown in fig. 2, in the illustrated embodiment, the lead wires of the three-phase winding 21 of the permanent magnet synchronous traction machine 20 are connected together in a star connection. The auxiliary motor 40 is used to drive the permanent magnet synchronous traction machine 20 to rotate at different speeds. The torque sensor 2 is used to detect the torque value generated when the permanent magnet synchronous traction machine 20 rotates at different speeds, so that the torque-speed curve of the permanent magnet synchronous traction machine 20 can be obtained.
Fig. 3 shows a plurality of torque-speed curves tested for the elevator permanent magnet synchronous traction machine according to one embodiment of the present invention corresponding to different series resistance values R1, R2, R3, R4, R5, respectively.
As shown in fig. 2 and 3, in the illustrated embodiment, the series resistor 12 is a variable resistor whose resistance value is adjustable, so that a plurality of torque-speed curves corresponding to different series resistance values R1, R2, R3, R4, R5, respectively, can be obtained by changing the resistance value of the series resistor 12.
As shown in fig. 2, in the illustrated embodiment, the testing apparatus of the elevator permanent magnet synchronous traction machine further includes a current sensor 1. The current sensor 1 is connected in series to a lead wire of one of the three-phase windings 21 of the permanent magnet synchronous traction machine 20. The current sensor 1 is used to detect the current value generated when the permanent magnet synchronous traction machine 20 rotates at different speeds, so that the impact current-speed curve of the permanent magnet synchronous traction machine 20 can be obtained.
Fig. 4 shows a plurality of tested current peak-speed curves corresponding to different series resistance values R1, R2, R3, R4, R5, respectively, of an elevator permanent magnet synchronous traction machine according to an embodiment of the present invention.
As shown in fig. 2 and 4, in the illustrated embodiment, the series resistor 12 is a variable resistor whose resistance value is adjustable, so that a plurality of rush current-speed curves corresponding to different series resistance values R1, R2, R3, R4, R5, respectively, can be obtained by changing the resistance value of the series resistor 12.
As shown in fig. 2, in the illustrated embodiment, the testing apparatus of the elevator permanent magnet synchronous traction machine further includes a coaxial coupling 50. The torque sensor 2 is connected between the output shaft 20a of the permanent magnet synchronous traction machine 20 and the output shaft 40a of the assist motor 40 through a coaxial coupling 50.
As shown in fig. 2, in the illustrated embodiment, the testing apparatus of the elevator permanent magnet synchronous traction machine further includes a motor controller (not shown) for controlling the rotation speed of the auxiliary motor 40 so that the auxiliary motor 40 can drive the permanent magnet synchronous traction machine 20 to rotate at different speeds.
As shown in fig. 2, in the illustrated embodiment, the testing apparatus of the elevator permanent magnet synchronous traction machine further includes a frequency converter 30. The assist motor 40 is electrically connected to an ac power supply (not shown) via the inverter 30. The auxiliary motor 40 is connected to the three-phase output U, V, W of the frequency converter 30.
In another exemplary embodiment of the invention, a method for testing the permanent magnet synchronous traction machine of the elevator is also disclosed. As shown in fig. 2 to 4, the test method includes the steps of:
s100: providing a testing device of the elevator permanent magnet synchronous traction machine;
s200: driving the permanent magnet synchronous traction machine 20 to rotate at different speeds by using an auxiliary motor 40, and reading the current value of the current sensor 1 and the torque value of the torque sensor 2;
s300: and calculating a torque-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine 20 corresponding to the initial series resistance value according to the read current value and the read torque value and the speed of the permanent magnet synchronous traction machine 20.
As shown in fig. 2 to 4, in the illustrated embodiment, the foregoing test method further includes the following steps:
s400: changing the resistance value of the series resistance 12;
s500: driving the permanent magnet synchronous traction machine 20 to rotate at different speeds by using an auxiliary motor 40, and reading the current value of the current sensor 1 and the torque value of the torque sensor 2;
s600: and calculating a torque-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine 20 corresponding to the series resistance value after the change according to the read current value and the torque value and the speed of the permanent magnet synchronous traction machine 20.
As shown in fig. 2 to 4, in the illustrated embodiment, the foregoing test method further includes the following steps:
s700: the foregoing steps S400 to S600 are repeatedly performed so as to calculate a plurality of torque-speed curves and a plurality of rush current-speed curves of the permanent magnet synchronous traction machine 20 corresponding to different series resistance values R1, R2, R3, R4, R5, respectively.
As shown in fig. 2 to 4, in an exemplary embodiment of the present invention, in the aforementioned step S300, a moment-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine 20 corresponding to the initial series resistance value may be calculated by a method of computer simulation calculation.
As shown in fig. 2 to 4, in an exemplary embodiment of the present invention, in the aforementioned step S600, a moment-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine 20 corresponding to the series resistance value after the change may be calculated by a method of computer simulation calculation.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the invention.
Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.
It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference signs in the claims shall not be construed as limiting the scope of the invention.
Claims (12)
1. The utility model provides a testing arrangement of synchronous hauler of elevator permanent magnetism which characterized in that includes:
the three series resistors (12) are respectively connected in series to the lead wires of the three-phase winding (21) of the permanent magnet synchronous traction machine (20) of the elevator;
an auxiliary motor (40) having an output shaft (40a) coaxially connected to an output shaft (20a) of the permanent magnet synchronous traction machine (20); and
a torque sensor (2) connected between an output shaft (20a) of the permanent magnet synchronous traction machine (20) and an output shaft (40a) of the auxiliary motor (40),
the lead wires of the three-phase winding (21) of the permanent magnet synchronous traction machine (20) are connected together in a star connection, the auxiliary motor (40) is used for driving the permanent magnet synchronous traction machine (20) to rotate at different speeds,
the torque sensor (2) is used for detecting torque values generated when the permanent magnet synchronous traction machine (20) rotates at different speeds, so that a torque-speed curve of the permanent magnet synchronous traction machine (20) can be obtained.
2. The testing device of the elevator permanent magnet synchronous traction machine according to claim 1, characterized in that:
the testing device of the elevator permanent magnet synchronous traction machine further comprises a current sensor (1), wherein the current sensor (1) is connected in series to a lead of one of three-phase windings (21) of the permanent magnet synchronous traction machine (20);
the current sensor (1) is used for detecting current values generated when the permanent magnet synchronous traction machine (20) rotates at different speeds, so that an impact current-speed curve of the permanent magnet synchronous traction machine (20) can be obtained.
3. The testing device of the elevator permanent magnet synchronous traction machine according to claim 1, characterized in that:
the series resistor (12) is a variable resistor whose resistance value is adjustable, so that a plurality of torque-speed curves corresponding to different series resistance values R1, R2, R3, R4, R5, respectively, can be obtained by changing the resistance value of the series resistor (12).
4. The testing device of the elevator permanent magnet synchronous traction machine according to claim 2, characterized in that:
the series resistor (12) is a variable resistor whose resistance value is adjustable, so that a plurality of rush current-speed curves corresponding to different series resistance values R1, R2, R3, R4, R5, respectively, can be obtained by changing the resistance value of the series resistor (12).
5. The testing device of the elevator permanent magnet synchronous traction machine according to claim 1, characterized in that:
the testing device of the elevator permanent magnet synchronous traction machine further comprises a coaxial coupling (50), and the torque sensor (2) is connected between the output shaft (20a) of the permanent magnet synchronous traction machine (20) and the output shaft (40a) of the auxiliary motor (40) through the coaxial coupling (50).
6. The testing device of the elevator permanent magnet synchronous traction machine according to claim 1, characterized in that:
the testing device of the elevator permanent magnet synchronous traction machine further comprises a motor controller, wherein the motor controller is used for controlling the rotating speed of the auxiliary motor (40), so that the auxiliary motor (40) can drive the permanent magnet synchronous traction machine (20) to rotate at different speeds.
7. The testing device of the elevator permanent magnet synchronous traction machine according to claim 1, characterized in that:
the testing device of the elevator permanent magnet synchronous traction machine further comprises a frequency converter (30), and the auxiliary motor (40) is electrically connected to an alternating current power supply through the frequency converter (30).
8. A testing method of an elevator permanent magnet synchronous traction machine comprises the following steps:
s100: providing a testing device of the elevator permanent magnet synchronous traction machine according to claim 2;
s200: driving the permanent magnet synchronous traction machine (20) to rotate at different speeds by using the auxiliary motor (40), and reading the current value of the current sensor (1) and the torque value of the torque sensor (2);
s300: and calculating a torque-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine (20) corresponding to the initial series resistance value according to the read current value and torque value and the speed of the permanent magnet synchronous traction machine (20).
9. The testing method of the elevator permanent magnet synchronous traction machine according to claim 8, further comprising the steps of:
s400: -varying the resistance value of the series resistance (12);
s500: driving the permanent magnet synchronous traction machine (20) to rotate at different speeds by using the auxiliary motor (40), and reading the current value of the current sensor (1) and the torque value of the torque sensor (2);
s600: and calculating a torque-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine (20) corresponding to the series resistance value after the change according to the read current value and the torque value and the speed of the permanent magnet synchronous traction machine (20).
10. The method for testing the permanent magnet synchronous traction machine of the elevator according to claim 9, further comprising the steps of:
s700: the foregoing steps S400 to S600 are repeatedly performed to calculate a plurality of torque-speed curves and a plurality of rush current-speed curves of the permanent magnet synchronous traction machine (20) corresponding to different series resistance values R1, R2, R3, R4, R5, respectively.
11. The testing method of an elevator permanent magnet synchronous traction machine according to claim 8,
in the step S300, a moment-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine (20) corresponding to the initial series resistance value are calculated by a computer simulation method.
12. The method for testing a permanent magnet synchronous traction machine of an elevator according to claim 9,
in the step S600, a moment-speed curve and an impact current-speed curve of the permanent magnet synchronous traction machine (20) corresponding to the series resistance value after the change are calculated by a computer simulation calculation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911292134.4A CN111056392B (en) | 2019-12-16 | 2019-12-16 | Testing device and testing method for elevator permanent magnet synchronous traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911292134.4A CN111056392B (en) | 2019-12-16 | 2019-12-16 | Testing device and testing method for elevator permanent magnet synchronous traction machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111056392A true CN111056392A (en) | 2020-04-24 |
| CN111056392B CN111056392B (en) | 2021-10-29 |
Family
ID=70301867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911292134.4A Active CN111056392B (en) | 2019-12-16 | 2019-12-16 | Testing device and testing method for elevator permanent magnet synchronous traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111056392B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3309648B2 (en) * | 1995-06-22 | 2002-07-29 | 三菱電機株式会社 | Elevator control device |
| CN1553878A (en) * | 2002-07-10 | 2004-12-08 | 三菱电机株式会社 | Elevator controller |
| CN102887407A (en) * | 2012-10-11 | 2013-01-23 | 浙江南奥电梯有限公司 | Star closure method for permanent magnet synchronous gearless tractor of elevator |
| CN103095189A (en) * | 2011-10-28 | 2013-05-08 | 康力电梯股份有限公司 | Superspeed elevator star-sealing protection processing method |
-
2019
- 2019-12-16 CN CN201911292134.4A patent/CN111056392B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3309648B2 (en) * | 1995-06-22 | 2002-07-29 | 三菱電機株式会社 | Elevator control device |
| CN1553878A (en) * | 2002-07-10 | 2004-12-08 | 三菱电机株式会社 | Elevator controller |
| CN103095189A (en) * | 2011-10-28 | 2013-05-08 | 康力电梯股份有限公司 | Superspeed elevator star-sealing protection processing method |
| CN102887407A (en) * | 2012-10-11 | 2013-01-23 | 浙江南奥电梯有限公司 | Star closure method for permanent magnet synchronous gearless tractor of elevator |
Non-Patent Citations (1)
| Title |
|---|
| 曹艳玲: "基于三相短路的永磁同步电机电感参数测量方法", 《汽车技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111056392B (en) | 2021-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102040397B1 (en) | Fault diagnosis method and system of induction motor using inverter input current analysis | |
| CN101975923B (en) | System for testing loading performance of motor | |
| JPH08248104A (en) | Motor performance test device | |
| CA2354180C (en) | A method for detecting a locked axle on a locomotive ac traction motor | |
| CN101816122A (en) | Restriction of output of electrical drive and protection of an elevator | |
| US20160131534A1 (en) | Method for determining a coil temperature of an electric machine | |
| US5990648A (en) | Method for detecting locked-axle conditions without a speed sensor | |
| CN104871424A (en) | Driving a rotating device based on a combination of speed detection by a sensor and sensor-less speed detection | |
| US6828746B2 (en) | Method and system using traction inverter for locked axle detection | |
| CN104793138A (en) | Servo motor test bench | |
| US20200269855A1 (en) | Method and control device for determining at least one characteristic value of a drivetrain which is in the installed state in an electrically drivable motor vehicle, and motor vehicle | |
| Hadžiselimović et al. | Magnetically nonlinear dynamic model of a series wound DC motor | |
| CN107664991A (en) | Electric machine controller off-line test device and detection method | |
| CN111056392B (en) | Testing device and testing method for elevator permanent magnet synchronous traction machine | |
| KR20140106555A (en) | Electrical machine control method and apparatus | |
| CN113364382A (en) | Method, device and processor for optimizing rotary position sensor in new energy automobile motor drive and computer readable storage medium thereof | |
| CN110835041B (en) | Star-sealing circuit design method for elevator permanent magnet synchronous traction machine | |
| CN111381187B (en) | Motor wire breakage detection method, system and device | |
| EP3219655B1 (en) | Method for determining speed of an electric motor, an elevator control unit utilizing the method thereof and a computer program product | |
| CN205023777U (en) | Fault -tolerant motor vertical -lift system of duplex winding permanent magnetism | |
| JP6454034B2 (en) | DC current sensor, AC current sensor, and inverter having the same | |
| CN205910323U (en) | Traction electric machine test platform | |
| Bin et al. | Fault injection test for MCU based on E-motor emulator | |
| JP2006042416A (en) | Electric vehicle and its control method | |
| JP7321392B2 (en) | FAILURE DETERMINATION DEVICE, DRIVE CONTROLLER, AND FAILURE DETERMINATION METHOD |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |