CN105836565B - Elevator traction machine magnet steel loss of excitation on-Line Monitor Device - Google Patents
Elevator traction machine magnet steel loss of excitation on-Line Monitor Device Download PDFInfo
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- CN105836565B CN105836565B CN201510017111.8A CN201510017111A CN105836565B CN 105836565 B CN105836565 B CN 105836565B CN 201510017111 A CN201510017111 A CN 201510017111A CN 105836565 B CN105836565 B CN 105836565B
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- traction machine
- excitation
- synchronous motor
- master controller
- permanent magnet
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Abstract
The invention discloses a kind of elevator traction machine magnet steel loss of excitation on-Line Monitor Devices, wherein monitoring device includes traction machine master controller and the permanent magnet synchronous motor that is electrically connected with the traction machine master controller, main circuit between the traction machine master controller and the permanent magnet synchronous motor is equipped with operation contactor and envelope star contactor, the stator winding edge of the permanent magnet synchronous motor is equipped with temperature sensor, and the temperature sensor is connect with the traction machine master controller signal.Elevator traction machine magnet steel loss of excitation on-Line Monitor Device and monitoring method provided by the invention, elevator traction machine be can be realized in the on-line monitoring for sealing starlike state lower magnetic steel loss of excitation risk, it avoids because great elevator accident caused by magnet steel loss of excitation, improves the security performance of elevator device.
Description
Technical field
The present invention relates to elevator technology field, in particular to a kind of elevator traction machine magnet steel loss of excitation on-Line Monitor Device and prison
Survey method.
Background technique
It is nearly all currently on the market permanent magnetic synchronous traction machine in the elevator traction machine of operation, traction machine is in elevator device
Core component, the excitation source of permanent-magnetic tractor is permanent magnetic steel, and permanent magnetic steel is very sensitive to temperature, reach temperature limit it
Afterwards, magnet steel can generate irreversible loss of excitation, and traction machine is sealed when sealing starlike state after star contactor FX closure, and operation contactor SW is disconnected
It opens, traction machine and controller disconnect, and controller can't detect the electric current of traction machine at this time, if envelope star overlong time, traction machine are fixed
Sub- heating in winding is serious, and permanent magnetic steel has the risk that loss of excitation occurs.Traction machine can be due to the mistake of magnet steel in starting next time in this way
Magnetic and accident occurs, bring security risk to whole system.
Summary of the invention
It is an object of the present invention to provide a kind of elevator traction machine magnet steel loss of excitation on-Line Monitor Device and monitoring methods, to realize envelope
To the monitoring of permanent-magnetic synchronous motor stator winding temperature under starlike state, if the temperature of stator winding is under loss of excitation critical temperature condition
It continues for some time, then issues loss of excitation alarm signal.
Based on the above issues, present invention provide the technical scheme that
Elevator traction machine magnet steel loss of excitation on-Line Monitor Device, including traction machine master controller and with the traction machine main control
The permanent magnet synchronous motor of device electrical connection, the main circuit between the traction machine master controller and the permanent magnet synchronous motor are equipped with
Operation contactor and envelope star contactor, the stator winding edge of the permanent magnet synchronous motor are equipped with temperature sensor, the temperature
Sensor is connect with the traction machine master controller signal.
Further, the temperature sensor is PT100 temperature sensor, the input terminal of the PT100 temperature sensor
Wiring is embedded in the stator winding edge of the permanent magnet synchronous motor and two piece-root grafting line of output end is respectively connected to the traction owner
PT1 the and PT2 interface of controller.
The present invention also provides a kind of elevator traction machine magnet steel loss of excitation on-line monitoring methods, are lost according to permanent magnet synchronous motor magnet steel
Magnetic temperature threshold value and the time needed for loss of excitation under the critical value preset temperature in the traction machine main controller controls program
It spends the threshold value t of sensor and in the threshold value t sustainable time, record is more than or equal to the duration of Δ T of threshold value t, temperature sensing
The temperature signal for monitoring the permanent magnet synchronous motor is transmitted to the traction machine master controller by device, if Δ T reach threshold value t can
Duration issues magnet steel loss of excitation fault alarm.
The invention has the advantages that
Using technical solution of the present invention, at the stator winding edge of elevator traction machine permanent magnet synchronous motor, setting temperature is passed
Sensor, and temperature sensor is connect with traction machine master controller signal, temperature sensor is in time by permanent magnet synchronous motor
The temperature signal of stator winding is transferred to traction machine master controller, and after traction machine band-type brake breaks down, traction machine is in envelope star
State, the state due to traction machine and controller in disconnection on circuit, monitors less than the electric current sealed under starlike state, if electric current
Excessive, stator winding fever is serious, and rotor magnetic steel is there are loss of excitation risk, and temperature sensor is by the stator winding of permanent magnet synchronous motor
Temperature signal be transferred to traction machine master controller, and in traction machine controller main program preset temperature sensor threshold value t
And in the threshold value t sustainable time, record is more than or equal to the duration of Δ T of threshold value t, if Δ T reach threshold value t it is sustainable when
Between then issue alarm signal, can avoid elevator accident great as caused by magnet steel loss of excitation generation, improve elevator device fortune
Capable security reliability.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, drawings in the following description are only some embodiments of the invention, skill common for this field
For art personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of elevator traction machine magnet steel loss of excitation on-Line Monitor Device embodiment of the present invention；
Specific embodiment
Above scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The present invention and be not limited to limit the scope of the invention.Implementation condition used in the examples can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
It is the structural schematic diagram of the embodiment of the present invention referring to Fig. 1, a kind of elevator traction machine magnet steel loss of excitation on-line monitoring is provided
Device, including traction machine controller and the permanent magnet synchronous motor being electrically connected with traction machine controller, in traction machine controller and forever
Circuit between magnetic-synchro motor is equipped with operation contactor and envelope star contactor, when band-type brake failure occurs for elevator traction machine,
Star contactor closure is sealed, operation contactor disconnects, and traction machine and controller do not have the connection on main circuit, i.e. traction machine control at this time
Electric current on device traction machine stator winding unable to monitor processed, if this time load excessive and envelope star overlong time, the temperature of stator winding
Degree meeting rapid increase, there are the risks of loss of excitation for permanent magnetic steel.
Of the invention thes improvement is that, is equipped with temperature sensor at the stator winding edge of permanent magnet synchronous motor, and
The temperature sensor is connect with traction machine controller signals, it is preferred that temperature sensor selects PT100 temperature sensor, should
The input terminated line of PT100 temperature sensor is embedded at permanent-magnetic synchronous motor stator winding edge and two piece-root grafting line of output end is distinguished
It is connected to PT1 the and PT2 interface of traction machine controller, such temperature sensor can be by the temperature of permanent-magnetic synchronous motor stator winding
Signal instantaneous transmission is spent to traction machine controller.
The monitoring method of elevator traction machine magnet steel loss of excitation on-Line Monitor Device of the present invention is, according to permanent magnet synchronous motor magnet steel
Loss of excitation temperature threshold value and the time needed for loss of excitation under the critical value, the preset temperature in traction machine main controller controls program
The threshold value t of sensor and in the threshold value t sustainable time, record is more than or equal to the duration of Δ T of threshold value t, temperature sensor
The temperature signal for monitoring permanent magnet synchronous motor is transmitted to traction machine master controller, if Δ T reaches the threshold value t sustainable time
Issue magnet steel loss of excitation fault alarm.
The operation principle of the present invention is that: after traction machine band-type brake breaks down, traction machine, which is in, seals starlike state, due to traction
The state of machine and controller in disconnection on circuit, traction machine monitoring control devices are less than the electricity for sealing stator winding under starlike state
Stream, if electric current is excessive, stator winding fever is serious, and there are loss of excitation risks for rotor magnetic steel；Temperature sensor can be by permanent magnet synchronous electric
The temperature signal of the stator winding of machine is transferred to traction machine master controller, is preset with temperature sensing in traction machine controller main program
The threshold value t of device and in the threshold value t sustainable time, traction machine controller record is more than or equal to the duration of Δ T of threshold value t, if
Δ T reaches the threshold value t sustainable time and then issues alarm signal, and user is notified to safeguard or replace in time magnet steel, can avoid due to
The generation of great elevator accident caused by magnet steel loss of excitation improves the safety of elevator device operation.
The foregoing examples are merely illustrative of the technical concept and features of the invention, its object is to allow one skilled in the art
It cans understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all smart according to the present invention
The equivalent transformation or modification that refreshing essence is done, should be covered by the protection scope of the present invention.
Claims (2)
1. elevator traction machine magnet steel loss of excitation on-Line Monitor Device, including traction machine master controller and with the traction machine master controller
The permanent magnet synchronous motor of electrical connection, the main circuit between the traction machine master controller and the permanent magnet synchronous motor are equipped with fortune
Row contactor and envelope star contactor, it is characterised in that: the stator winding edge of the permanent magnet synchronous motor is equipped with temperature sensor,
The temperature sensor is connect with the traction machine master controller signal；
According to the time needed for permanent magnet synchronous motor magnet steel loss of excitation temperature threshold value and the loss of excitation under the critical value, in the traction
The threshold value t of preset temperature sensor and in the threshold value t sustainable time in machine main controller controls program, record is more than or equal to threshold
The temperature signal for monitoring the permanent magnet synchronous motor is transmitted to the traction machine by the duration of Δ T of value t, temperature sensor
Master controller, after traction machine band-type brake breaks down, traction machine, which is in, seals starlike state, if to reach threshold value t sustainable by Δ T at this time
Time issues magnet steel loss of excitation fault alarm.
2. elevator traction machine magnet steel loss of excitation on-Line Monitor Device according to claim 1, it is characterised in that: the temperature passes
Sensor is PT100 temperature sensor, and the input terminated line of the PT100 temperature sensor is embedded in determining for the permanent magnet synchronous motor
Sub- winding edge and two piece-root grafting line of output end are respectively connected to PT1 the and PT2 interface of the traction machine master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017111.8A CN105836565B (en) | 2015-01-14 | 2015-01-14 | Elevator traction machine magnet steel loss of excitation on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017111.8A CN105836565B (en) | 2015-01-14 | 2015-01-14 | Elevator traction machine magnet steel loss of excitation on-Line Monitor Device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105836565A CN105836565A (en) | 2016-08-10 |
| CN105836565B true CN105836565B (en) | 2019-02-05 |
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| CN201510017111.8A Active CN105836565B (en) | 2015-01-14 | 2015-01-14 | Elevator traction machine magnet steel loss of excitation on-Line Monitor Device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192779A (en) * | 2006-12-01 | 2008-06-04 | 本田技研工业株式会社 | Motor control method and motor control apparatus |
| CN103684209A (en) * | 2012-09-06 | 2014-03-26 | 发那科株式会社 | Control device of permanent magnet synchronous motor and control system including the same |
| CN204454129U (en) * | 2015-01-14 | 2015-07-08 | 申龙电梯股份有限公司 | Elevator traction machine magnet steel loss of excitation on-Line Monitor Device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05178559A (en) * | 1991-12-24 | 1993-07-20 | Hitachi Building Syst Eng & Service Co Ltd | Elevator control device |
| JP4724070B2 (en) * | 2006-08-09 | 2011-07-13 | 本田技研工業株式会社 | Electric motor control device |
| JP5113395B2 (en) * | 2007-01-24 | 2013-01-09 | Ｊｕｋｉ株式会社 | Dynamic brake device for motor |
| JP2009005553A (en) * | 2007-06-25 | 2009-01-08 | Hitachi Ltd | System and method for controlling permanent magnet motor, and method for controlling elevator |
| JP5127612B2 (en) * | 2007-08-02 | 2013-01-23 | 三菱電機株式会社 | Motor drive control device, air conditioner, ventilation fan and heat pump type water heater |
| JP2012035946A (en) * | 2010-08-05 | 2012-02-23 | Mitsubishi Electric Corp | Temperature protective device of electric motor for elevator |
-
2015
- 2015-01-14 CN CN201510017111.8A patent/CN105836565B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192779A (en) * | 2006-12-01 | 2008-06-04 | 本田技研工业株式会社 | Motor control method and motor control apparatus |
| CN103684209A (en) * | 2012-09-06 | 2014-03-26 | 发那科株式会社 | Control device of permanent magnet synchronous motor and control system including the same |
| CN204454129U (en) * | 2015-01-14 | 2015-07-08 | 申龙电梯股份有限公司 | Elevator traction machine magnet steel loss of excitation on-Line Monitor Device |
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| CN105836565A (en) | 2016-08-10 |
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