WO2011069543A1 - Système de surveillance d'état pour un moteur - Google Patents

Système de surveillance d'état pour un moteur Download PDF

Info

Publication number
WO2011069543A1
WO2011069543A1 PCT/EP2009/066797 EP2009066797W WO2011069543A1 WO 2011069543 A1 WO2011069543 A1 WO 2011069543A1 EP 2009066797 W EP2009066797 W EP 2009066797W WO 2011069543 A1 WO2011069543 A1 WO 2011069543A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
switch box
box cover
sensor unit
control box
Prior art date
Application number
PCT/EP2009/066797
Other languages
German (de)
English (en)
Inventor
Jörg HASSEL
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/EP2009/066797 priority Critical patent/WO2011069543A1/fr
Priority to CN200980162778.XA priority patent/CN102652252B/zh
Priority to JP2012542366A priority patent/JP5597719B2/ja
Priority to EP09801683.5A priority patent/EP2510314B1/fr
Priority to US13/515,119 priority patent/US9276448B2/en
Publication of WO2011069543A1 publication Critical patent/WO2011069543A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • 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
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/35—Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis

Definitions

  • the invention relates to a condition monitoring system for a motor.
  • a system and in particular a motor with condition monitoring functions is usually associated with a complex installation effort.
  • a subsequent oversight of a motor with condition monitoring functions are usually very complex and u.U. Structural measures required.
  • the sensors needed for monitoring must be positioned and mounted on the engine.
  • a wiring of the sensors must be done with their competent control. Free-lying cables in the work area must, for example, be routed via routes or underfloor cable ducts in order to prevent endangering of people or machines in the work area. Due to the additional installation of sensors and the additional laying of cables u.U. reassess the safety of a plant.
  • a device i. by a control box cover for an engine comprising:
  • a sensor unit for detecting a measured variable of the motor, a communication means which is designed to provide a parameter characterizing the measured variable to a reading device,
  • a supply unit for supplying the sensor unit with energy.
  • the advantage achieved by the invention is that the condition monitoring functions for the engine, in particular the electric motor, are achieved by the control box cover.
  • the components required for the condition monitoring function are integrated in the control box cover. So that the control box cover can perform a condition monitoring of the engine, the control box cover comprises at least one sensor unit, which is designed to detect a measured variable of the motor.
  • the control box cover comprises a communication means which is designed to provide at least one characteristic value characterizing the measured variable to a reading device.
  • a supply unit of the control box cover is used to power the sensor unit and preferably also of the communication means.
  • the control box cover thus forms a self-sufficient monitoring unit, which allows monitoring of the engine.
  • An advantage of the control box cover with integrated condition monitoring function is that no complicated cabling between the sensors and the communication unit is necessary, as this is already realized within the control box cover. The installation effort by laying cables of conventional condition monitoring sensors, can thus be completely eliminated.
  • control box cover Another advantage of engine monitoring by the control box cover is that it allows easy retrofitting for an end user.
  • switch box cover of a control box of the present engine with a switch box cover according to the invention must be replaced. Elaborate installations and cabling on the engine are not necessary.
  • the desired measured variables and consequently characteristic values of the engine can be detected with corresponding sensors.
  • These measured variables and in particular the characteristic value characterizing the measured variable can be provided to the reading device via the communication means.
  • the reading device is preferably arranged outside the motor.
  • the decentralized reading device can thus be used to constantly monitor the motor. With appropriate training of the reader and the communication means also online monitoring of the engine is possible. In this way, a location-independent monitoring of the state of the engine and consequently the system can be done.
  • Condition monitoring functions can provide early detection of potential engine problems, allowing an end user to make timely and appropriate adjustments.
  • the supply unit for supplying the communication means with energy is provided.
  • the control box lid forms a self-contained unit, which can be used independently.
  • the supply unit is designed to supply the communication means and / or the sensor unit completely with energy. With regard to the sensor unit and / or the communication means no further wiring is therefore necessary.
  • control box cover has means for providing the electronic nameplate of the engine via the communication means.
  • the electronic nameplate of the engine is also stored in the control box cover. On the basis of the information on the electronic nameplate further engine-specific analyzes can be carried out. Furthermore, an end user can easily retrieve the engine-relevant data via the communication means and use it for example for upcoming analyzes.
  • the sensor unit has means for partial discharge measurement.
  • a measured variable or several measured variables are detected by the sensor unit, which identify the presence of a partial discharge.
  • a characteristic value characterizing the measured variable (s) is ultimately provided to a reading device with the aid of the communication means.
  • An end user who receives such information via the reading device, can respond accordingly and initiate necessary measures thanks to the presence of this information.
  • an evaluation unit which has a reading device for reading the characteristics of the communication means, automatically initiate necessary measures.
  • the sensor unit has means for measuring a temperature of the motor, in particular a stator winding, and / or an ambient temperature of the motor.
  • the temperature and the ambient temperature of the engine can be determined. These temperatures or a characteristic value characterizing this temperature / s can be provided to a reader via the communication means for further analysis.
  • the sensor unit has means for measuring an imbalance of the motor.
  • a determination of an imbalance of the engine can be done for example by analyzing low frequency bands. Consequently, the means for measuring an imbalance of the motor is preferably adapted to analyze low frequency bands.
  • the sensor unit for forming the characteristic value has at least one sensor for determining a measured variable and a reference value of the motor for comparison with the determined measured variable of the sensor.
  • the reference value is preferably stored in a memory of the control box cover. Because the control box cover has both the reference value of the motor and the determined measured variable, a comparison of the two values enables an evaluation of the present state to be carried out with one another.
  • control box cover and in particular its sensor unit can therefore be provided with special sensors which can determine different measured variables of the engine, so that the present state of the engine can be determined by comparing the determined measured variables with the respective reference values of the engine , Such a determination can be made either already in the control box cover itself or in a downstream process. In the downstream process, the characteristic value or values are retrieved by the communication means by a reading device and then analyzed.
  • the sensor unit has means for analyzing the measured variables with one another.
  • the sensor unit for determining the characteristic value has a processor.
  • control box cover By integrating the processor in the control box cover, complex analyzes of the individual measured variables can be carried out with each other or with associated reference variables. Furthermore, the integration of the processor and preferably a memory in the control box cover creates the opportunity to supplement the control box cover subsequently with further functional evaluations. Likewise, it is possible by the shift of the function evaluation in the control box cover to carry out a preselection of the characteristic values to be transmitted. Consequently, communication between the communication means and the reader can be reduced. Likewise, the analysis already taking place in the control box cover minimizes the need for additional components next to the control box cover, since ultimately the entire condition monitoring function of the engine, including the analysis by the control box cover, is realized.
  • the determined measured variables of the sensor unit can be analyzed and a measured quantity can be formed from this which reflects the health of the motor.
  • This measured variable can be provided to a reading device via its associated characterizing characteristic value.
  • the communication means for communication with an external reading device is provided.
  • Communication with a decentralized reader which is located outside the engine.
  • Communication with the external reader may be wired or preferably wireless.
  • An end user can, for example, with a handheld present characteristics or Retrieve engine measurements and use for further analysis.
  • the advantage of wireless communication between the communication means and the reader is that the installation effort is reduced to a minimum. Consequently, an end user only has to replace the control box cover of the existing engine with a control box cover according to the invention. Laying cables is not necessary.
  • the control box cover is therefore a self-sufficient unit and can be attached preferably without reaction to the motor instead of the existing control box cover.
  • the determined measured variables and / or characteristic values are stored in a memory of the control box cover, so that an analysis of the measured variables or characteristic values can take place over time.
  • the supply unit has means for the energy extraction of the energy from the motor connection line.
  • Such an energy extraction from the motor connection line can be effected, for example, by a magnetic energy extraction, a capacitive energy extraction or an ohmic energy extraction (for example via a transformer).
  • the supply unit has means for energy production of the energy by energy harvesting.
  • power is generated from sources such as ambient temperature, vibration or airflow.
  • sources such as ambient temperature, vibration or airflow.
  • a further embodiment of the invention has a
  • a motor has a switch box with a switch box cover according to the invention.
  • the sensor unit, the communication means and the supply unit are mounted on a circuit board of the control box cover.
  • FIG. 2 a schematic representation of a side of the switch box cover 3 from FIG. 1 facing the switch box 2 in the mounted state.
  • the electric motor 1 shows a schematic representation of an electric motor 1.
  • the electric motor 1 is mounted on a stand 6.
  • the electric motor 1 comprises a shaft 9, an engine bearing shell A-side 4 and an engine bearing shell B-side 5, which encloses the machine housing of the electric motor 7.
  • the Motorla ⁇ gerschalen 4.5 form the rear and front cover of the machine housing 7. Through the engine mounts 4.5, which receives the bearings of the shaft 9, the inside of the machine is protected against contact.
  • the motor bearing shell A-side 4 denotes the drive side and usually carries a fixed bearing.
  • the motor bearing shell B-side 5 is the "fan shell" and the bearing is usually via a sliding seat
  • the electric motor 1 also has a switch box 2.
  • This switch box 2 is fixedly connected to the electric motor 1. Via a connection opening 8 of the switch box 2 can Motor connection line to be connected to the electric motor 1 for power supply.
  • the switch box 2 has a switch box cover 3. This switch box cover 3rd is using fasteners with
  • the control box cover 3 has a sensor unit for detecting a plurality of measured variables of the electric motor 1.
  • a communication means which is integrated in the control box cover 3, is designed to provide a characteristic value which characterizes the respective measured variable and / or a characteristic value characterizing the measured variables to a reading device 20.
  • the communication Zvi ⁇ rule the communication means and the reading device 20 takes place here wireless, so no wiring for the state ⁇ monitoring is necessary.
  • the control box cover 3 further comprises a supply unit for supplying the sensor unit and the communication means with energy.
  • the switch ⁇ box lid 3 thus forms a condition monitoring system for the electric motor. 1
  • This switch box cover 3 includes a sensor unit 10, a supply unit 12, a communication ⁇ 11 ku and a means 13 for providing the electronic nameplate.
  • the supply unit 12 ver ⁇ provides both the sensor unit 10, the communication means 11 and the means 13 for providing the electronic nameplate with electrical energy.
  • the energy is generated by an energy extraction from the motor connection cable.
  • the supply of the respective components can also be ensured by energy harvesting measures.
  • the sensor unit 10 further comprises a means 14 for partial discharge measurement, a means 15 for measuring a temperature and a stator winding of the electric motor and / or an ambient temperature of the electric motor, a means 16 for measuring an imbalance of the electric motor, a processor 17 and a memory 19th for storing the reference value of the electric motor and / or the determined measured variables or characteristic values.
  • the control box cover 3 comprises suitable sensors.
  • condition monitoring by the control box cover 3 can take place.
  • Condition monitoring has several sub-steps here.
  • a state detection takes place.
  • a measurement of measured variables / machine parameters of the electric motor by sensors of the sensor unit 10 takes place.
  • the actual state of the electric motor is compared with a predetermined reference value.
  • This reference value can represent both a setpoint value to be maintained and a limit value of the electric motor that is not to be exceeded.
  • the respective reference value and consequently the respective nominal value is determined either at the time of the machine acceptance or determined by predetermined variables, depending on the parameter of the electric motor that has been examined.
  • Such reference values are preferably already present in the electronic nameplate of the respective electric motor.
  • the diagnosis of the determined measured value takes place with the reference value. This is done by a processor 17 which is mounted in the control box cover 3. If the analysis is already carried out in the control box cover 3, a means characterizing the measured variable via the communication means is provided. the characteristic is provided to the reader. This characteristic value signals whether a setpoint exceeded or not. Furthermore, based on the characteristic value, a present deviation of the measured variable from the reference variable can be specified. If a downstream analysis of the determined measured variables is carried out, the characteristic value characterizing the measured variable can just be a value representing the measured variable. Further, by integrating a memory 19, the history of the electric motor can be more accurately viewed and analyzed. For example, the history of the measured variables and / or characteristic values of the electric motor can be read out via the external reading device and analyzed via the communication means 11. Furthermore, such an analysis can also take place within the control box cover 3 with the aid of the processor 17.
  • control box cover 3 Through the control box cover 3, an end user can easily retrofit a condition monitoring system within his system with respect to the electric motor without the need for expensive wiring. He can thus monitor the reliability of his system or his electric motor and thus extend the use of the electric motor. Unexpected machine failures can therefore be avoided. Furthermore, a constant control of the electric motor both online and offline is possible through the control box cover 3. Another advantage is that the control box cover 3 forms a self-sufficient unit and thus can be retrofitted without much effort later in an already installed electric motor.

Abstract

L'invention concerne un "Condition Monitoring System" pour un moteur (1). Pour permettre une surveillance simple et bon marché d'un moteur (1), il est proposé qu'un couvercle de panneau de commande (3) pour le moteur (1) comprenne une unité de capteur (10) pour détecter une grandeur de mesure du moteur (1), un moyen de communication (11) qui est conçu pour fournir à un appareil de lecture (20) un paramètre caractérisant la grandeur de mesure, et une unité d'alimentation (12) pour alimenter l'unité de capteur (10) en énergie.
PCT/EP2009/066797 2009-12-10 2009-12-10 Système de surveillance d'état pour un moteur WO2011069543A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/EP2009/066797 WO2011069543A1 (fr) 2009-12-10 2009-12-10 Système de surveillance d'état pour un moteur
CN200980162778.XA CN102652252B (zh) 2009-12-10 2009-12-10 用于电机的状态监视系统
JP2012542366A JP5597719B2 (ja) 2009-12-10 2009-12-10 モータの状態監視装置
EP09801683.5A EP2510314B1 (fr) 2009-12-10 2009-12-10 Système de surveillance de l'état d'un moteur
US13/515,119 US9276448B2 (en) 2009-12-10 2009-12-10 Condition monitoring system for a motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/066797 WO2011069543A1 (fr) 2009-12-10 2009-12-10 Système de surveillance d'état pour un moteur

Publications (1)

Publication Number Publication Date
WO2011069543A1 true WO2011069543A1 (fr) 2011-06-16

Family

ID=42635534

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/066797 WO2011069543A1 (fr) 2009-12-10 2009-12-10 Système de surveillance d'état pour un moteur

Country Status (5)

Country Link
US (1) US9276448B2 (fr)
EP (1) EP2510314B1 (fr)
JP (1) JP5597719B2 (fr)
CN (1) CN102652252B (fr)
WO (1) WO2011069543A1 (fr)

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CN103390872A (zh) * 2012-05-08 2013-11-13 哈米尔顿森德斯特兰德公司 冲压空气风扇组件内的接线盒的盖
CN103580389A (zh) * 2012-08-08 2014-02-12 英飞凌科技股份有限公司 用于电驱动装置的远程转子参数传感器
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EP3945331A1 (fr) * 2020-07-28 2022-02-02 Siemens Aktiengesellschaft Barrette à bornes pour une machine

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US9276448B2 (en) 2009-12-10 2016-03-01 Siemens Aktiengesellschaft Condition monitoring system for a motor
CN103032352A (zh) * 2011-10-04 2013-04-10 哈米尔顿森德斯特兰德公司 马达壳体热感测
CN103390872A (zh) * 2012-05-08 2013-11-13 哈米尔顿森德斯特兰德公司 冲压空气风扇组件内的接线盒的盖
CN103580389A (zh) * 2012-08-08 2014-02-12 英飞凌科技股份有限公司 用于电驱动装置的远程转子参数传感器
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EP3945331A1 (fr) * 2020-07-28 2022-02-02 Siemens Aktiengesellschaft Barrette à bornes pour une machine

Also Published As

Publication number Publication date
US20120267988A1 (en) 2012-10-25
EP2510314B1 (fr) 2016-09-28
US9276448B2 (en) 2016-03-01
CN102652252A (zh) 2012-08-29
JP2013514047A (ja) 2013-04-22
EP2510314A1 (fr) 2012-10-17
CN102652252B (zh) 2015-07-15
JP5597719B2 (ja) 2014-10-01

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