CN110673034A - High-voltage motor monitoring system based on optical fiber power supply and wireless communication - Google Patents
High-voltage motor monitoring system based on optical fiber power supply and wireless communication Download PDFInfo
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- CN110673034A CN110673034A CN201911050157.4A CN201911050157A CN110673034A CN 110673034 A CN110673034 A CN 110673034A CN 201911050157 A CN201911050157 A CN 201911050157A CN 110673034 A CN110673034 A CN 110673034A
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- voltage motor
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- 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
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- 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
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention relates to a high-voltage motor monitoring system based on optical fiber power supply and wireless communication, which comprises a high-voltage motor management device and at least one high-voltage motor measuring device, wherein the high-voltage motor management device is connected with the high-voltage motor measuring device through a cable; the high-voltage motor measuring device is used for measuring the state of the high-voltage motor; the high-voltage motor management device is used for carrying out optical fiber power supply, data acquisition and state monitoring on each high-voltage motor measuring device; through the state data with high-voltage motor measuring equipment send high-voltage motor management device, the problem is revealed to laser such as the damaged fracture of optic fibre of in time monitoring optic fibre power supply link, and greatly reduced is the safety risk who exists in industrial production. The invention effectively manages the optical fiber power supply link through power supply management, and solves the problems of stability and safety of optical fiber power supply.
Description
Technical Field
The invention relates to the field of detection and monitoring of high-voltage motors, in particular to a high-voltage motor monitoring system based on optical fiber power supply and wireless communication.
Background
An electric machine is a device that converts electrical energy into mechanical energy. It uses the electrified coil to produce rotating magnetic field and acts on the rotor to form electrodynamic force rotating torque, so as to make the motor rotate. In the power consumption of the whole society, about 70% of the power consumption is consumed in the industrial field, and the power consumption of the industrial motor occupies 70% of the power consumption of the whole industrial field.
The motor is divided into a high-voltage motor and a low-voltage motor, the high-voltage motor is a motor with rated voltage of more than 1000V, the high-voltage motor increases output power by improving the motor, and the motor has certain advantages compared with the low-voltage motor.
However, due to the introduction of high voltage, certain safety hazards are generated to the safety of people and equipment. To solve this problem, an electrical isolation method may be generally used. The main ways of realizing the electrical isolation are as follows: transformer isolation, photovoltaic isolation, capacitor isolation, and the like. The optical fiber isolation in the photoelectric isolation is most effective, can well solve the potential isolation, and has strong anti-electromagnetic interference capability. Therefore, a sensing system using optical fiber power supply is proposed, for example, the "optical fiber power supply sensing system" disclosed in chinese patent CN 108398147A, and the sensor is powered by the optical fiber power supply, so as to realize electrical isolation.
However, the prior art also has problems, including: 1, the optical power may be unstable (the influence of vibration at the optical fiber joint) during the optical fiber power supply and transmission process, which may result in the unstable operation of the detection device. 2, the lasers used in the current optical fiber power supply schemes are mostly four types of lasers or other high-power lasers, and improper use of the lasers may cause serious production safety accidents, such as personnel being burned, blindness or fire.
Disclosure of Invention
The invention aims to provide a high-voltage motor monitoring system based on optical fiber power supply and wireless communication, which is used for solving the problems of stability and safety of optical fiber power supply in the prior art.
The scheme of the invention comprises the following steps:
a high-voltage motor monitoring system based on optical fiber power supply and wireless communication comprises a high-voltage motor management device and at least one high-voltage motor measuring device; the high-voltage motor measuring device is used for measuring the state of the high-voltage motor; the high-voltage motor measuring device comprises a measuring MCU module, a power supply module and a measuring wireless transceiving module; the high-voltage motor management device is used for carrying out optical fiber power supply, data acquisition and state monitoring on each high-voltage motor measuring device; the high-voltage motor management device comprises a management MCU module, a laser emission module and a management wireless transceiver module; when the measurement MCU detects that the power supply module has no laser power or the laser power input is smaller than a set threshold value, the measurement wireless transceiver module sends a message to the management MCU module, the management MCU module detects the state of the corresponding laser emission module after receiving the message, if the state is a laser on state, the interruption of the optical fiber power supply link is judged, and the management MCU module closes the laser output of the corresponding laser emission module and gives an alarm.
Furthermore, the measurement MCU module is a micro-power consumption MCU.
Further, the management MCU module is a high-performance MCU.
Furthermore, the high-voltage motor measuring device is connected with an electrical quantity sensor module used for collecting voltage and current data of the high-voltage motor through a signal collecting interface.
Furthermore, the high-voltage motor measuring device is also connected with an environment sensor module for collecting temperature and humidity data of the high-voltage motor.
Furthermore, the high-voltage motor management device further comprises a data interface used for providing external data, and the data interface is a network port, an optical fiber port, a serial port or a wireless communication interface.
Further, the measurement wireless transceiver module and the management wireless transceiver module are 3G, 4G or WIFI modules.
Further, the power module includes a battery.
Through the state data transmission with high-voltage motor measuring equipment to high-voltage motor management device, timely monitoring control the problem of laser leakage such as the damaged fracture of optic fibre power supply link, greatly reduced the safety risk that exists in industrial production, also improved the stability of system. And because the communication cable is easy to be damaged, the invention adopts a wireless mode to transmit data, thereby reducing the risk of link interruption to a certain extent.
The invention adopts power management to reasonably store, use and distribute the energy of optical fiber power supply, is beneficial to optimizing the optical fiber power supply technology, solves the problem of unstable power supply of the test and measurement equipment caused by unstable power supply power in the application of the optical fiber power supply, and enables the uncontrollable operation caused by the original uncontrollable factors to be operated controllably.
The working state of the high-voltage motor measuring equipment can be pre-warned through monitoring of the optical fiber power supply link and power management in the high-voltage motor measuring equipment. The original damage is repaired again, and the damage is changed into abnormity to prepare for repair, thereby reducing the downtime of industrial production at key time and reducing the maintenance time and work risk of operation and maintenance personnel.
Drawings
FIG. 1 is a schematic diagram of a high voltage motor monitoring system of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a high voltage motor monitoring system according to an embodiment of the present invention;
wherein: 100. Micro power consumption MCU; 101. a power supply module; 102. 102', a wireless transceiver module; 103. A laser emission module; 104. A high performance MCU; 105. a sensor module; 200. A sensor electrical parameter signal; 201. A wireless data link; 202. a fiber optic power link; 203. a power supply link; 204. A wireless data link and a power supply link; 300. A high voltage motor measurement device; 301. High-voltage motor management device.
Detailed Description
The following description is made with reference to the accompanying drawings.
As shown in the architecture of fig. 2, the high voltage motor monitoring system includes one high voltage motor management device and four high voltage motor measurement devices (as another embodiment, more high voltage motor measurement devices or fewer high voltage motor measurement devices may be connected). One high-voltage motor management device 301 is connected with a plurality of high-voltage motor measurement devices 300 through a wireless data link and a power supply link 204, so that a plurality of high-voltage motors are monitored and managed.
As shown in fig. 1, the high-voltage motor measuring device includes a micro-power consumption MCU module 100 (e.g., an MSP430 series single chip microcomputer, etc.), a power module 101, a wireless transceiver module 102, etc.; the high-voltage motor management device mainly comprises a wireless transceiver module 102' (used for interacting with the wireless transceiver module 102 of the high-voltage motor measurement device), a laser emission module 103 and a high-performance MCU module 104 (such as an STM32 series single chip microcomputer). The high-voltage motor measuring device mainly realizes the state measurement of a single high-voltage motor, such as temperature, vibration, voltage, current, rotating speed and the like. The high-voltage motor management device mainly realizes optical fiber power supply, data acquisition and state monitoring on a plurality of high-voltage motor management devices.
The high-voltage motor management device 301 supplies power to the high-voltage motor measuring equipment 300 through the optical fiber power supply link 202, wherein the laser emission module 103 injects four types of laser into the power module 101 by using a multimode OM1 optical cable (62.5/125 um), and converts the laser into electric energy through the power module 101, and the power module 101 mainly constitutes a photoelectric conversion circuit and related circuits for level conversion, voltage stabilization, filtering and the like, which belong to commercially available products.
The power module 101 converts laser light into electric energy and stores the electric energy into an internal battery through an internal power management circuit or directly supplies the electric energy to other parts, such as the micro-power consumption MCU101 and the wireless transceiver module 102. The battery inside the power module 101 can be used for excess energy storage in low performance modes of operation and buffering when the fiber optic power link is unstable or at high performance.
Because the whole system adopts an optical fiber power supply mode, the power supply energy requirement on the power module 101 is reduced by adopting the following two modes, 1, the micro-power consumption MCU101 adopts an extremely low power consumption processor (the type can be selected according to specific requirements), and the data acquired by the sensor is not subjected to complex analysis and processing in the micro-power consumption MCU 101; the micro power consumption MCU101 is operated intermittently in full performance, and can be operated in full performance by triggering, and the implementation manner of the micro power consumption MCU can be timing triggering, event triggering (a trigger command sent by 301), automatic triggering (an abnormality is detected in the data 105 of the sensor module), and the like.
The micro power consumption MCU100 provides an electrical parameter signal interface 200 for acquisition and measurement, mainly including a universal serial interface, a voltage or current interface. Engineering parameters of the high voltage motor can be converted into electrical parameters through the interface and sensor module 105 (e.g., a voltage transformer and a current transformer) and collected to the micro power consumption MCU 100. Meanwhile, the micro power consumption 100 collects the working temperature, humidity and the like (measured by a temperature sensor and a humidity sensor) of the high-voltage motor measuring device 300, and provides field detection data for operation and maintenance personnel.
The micro-power consumption MCU100 and the power module 101 can sequentially supply power to the peripheral sensor modules and collect data under the push of the trigger event. The acquired data is simply processed in the micro-power consumption MCU100, such as comparison of preset trigger early warning values, data compression coding, data storage, data transmission, and the like.
The micro power consumption MCU100 module will perform state management on the power module 101, which includes: 1. monitoring the current input voltage and current of the power supply module 101, and evaluating the health state of the current optical fiber power supply link according to the parameters; 2. the current parameters of the power module 101, such as the voltage, the residual capacity, the temperature, and the battery internal resistance, of the backup battery module are monitored, and the health status of the optical fiber link is combined to predict how long the optical fiber link can continue to operate after being interrupted. The state data is sent to the high-voltage motor measurement management device 301 through the wireless transceiver module 102, so that important reference is provided for operation and maintenance or management personnel to use and maintain the measurement equipment.
In addition, the micro power consumption MCU100 can collect the quality data of the wireless signal in the wireless transceiver module 102, and adjust the transmitting power of the wireless transceiver module, thereby effectively saving electric energy and reducing the requirement for the power supply energy of the power module 101. After receiving the data sent by the micro power consumption 100, the high performance MCU104 analyzes and calculates the data, and performs state monitoring and evaluation on the high voltage motor and the high voltage motor measuring device. Meanwhile, the high-performance MCU104 provides external data interfaces such as network ports, optical fiber ports, serial ports, wireless interfaces, and the like. Protocols such as Modbus, TCP/IP, OPC UA or other power regulations can be provided for convenience of data interconnection in industrial fields.
When the wireless transceiver modules 102 and 102' are actually used, communication modes of different frequency bands can be adopted, such as 3G, 4G, WIFI, and the like, and specific communication frequency bands can be selected according to the working frequency bands of the high-voltage motor, so that possible electromagnetic interference frequency bands are avoided to reduce the risk of communication interruption.
The above-mentioned parts can be replaced by similar specific technical means in the prior art, and many functions can omit some functions according to the need, and the key technical means of the present embodiment is described below.
In order to solve the problems existing in the optical fiber power supply: the effects of vibration at the fiber splice lead to unstable fiber supply and can cause serious production safety accidents due to improper use of laser light.
When the micro-power consumption MCU100 detects that the power module 101 has no laser power or the laser power input is less than a set threshold, the laser power can be timely transmitted to the high-performance MCU104 through the wireless transceiver module 102, and the high-performance MCU104 receives the laser power and then detects the state of the corresponding laser emitting module 103 (the "corresponding" means that one high-voltage motor management device can include a plurality of laser emitting modules 103, each laser emitting module 103 corresponds to a power module of a high-voltage motor measuring device, and it can be determined through the received information which high-voltage motor measuring device has a problem, so that the laser emitting module corresponding to the high-voltage motor measuring device is the "corresponding" laser emitting module), if the laser emitting state is on, it is preliminarily determined that the optical fiber power supply link is interrupted (OM 1 multimode fiber is damaged, and there is a risk of laser leakage), and the high-performance MCU104 immediately turns off the laser output of the corresponding, and alarms such as damaged optical fiber, broken optical fiber power supply link and the like are sent.
The above is a preferred embodiment of the present invention, but it should be understood that the above detailed description should not be construed as limiting the spirit and scope of the present invention, and obvious modifications or substitutions made by those skilled in the art based on the above embodiment still fall into the protection scope of the present invention.
Claims (8)
1. A high-voltage motor monitoring system based on optical fiber power supply and wireless communication comprises a high-voltage motor management device and at least one high-voltage motor measuring device;
the high-voltage motor measuring device is used for measuring the state of the high-voltage motor; the high-voltage motor measuring device comprises a measuring MCU module, a power supply module and a measuring wireless transceiving module;
the high-voltage motor management device is used for carrying out optical fiber power supply, data acquisition and state monitoring on each high-voltage motor measuring device; the high-voltage motor management device comprises a management MCU module, a laser emission module and a management wireless transceiver module;
the method is characterized in that after the measurement MCU detects that the power supply module has no laser power or the laser power input is smaller than a set threshold value, the measurement wireless transceiver module sends a message to the management MCU module, the management MCU module detects the state of the corresponding laser emission module after receiving the message, if the state is a laser on state, the interruption of the optical fiber power supply link is judged, and the management MCU module closes the laser output of the corresponding laser emission module and gives an alarm.
2. The high-voltage motor monitoring system based on optical fiber power supply and wireless communication of claim 1, wherein the measurement MCU module is a micro-power consumption MCU.
3. The high-voltage motor monitoring system based on optical fiber power supply and wireless communication of claim 2, wherein the management MCU module is a high-performance MCU.
4. The high-voltage motor monitoring system based on optical fiber power supply and wireless communication as claimed in claim 1, wherein the high-voltage motor measuring device is connected to an electrical quantity sensor module for collecting voltage and current data of the high-voltage motor through a signal collecting interface.
5. The high-voltage motor monitoring system based on optical fiber power supply and wireless communication as claimed in claim 4, wherein the high-voltage motor measuring device is further connected with an environmental sensor module for collecting temperature and humidity data of the high-voltage motor.
6. The high-voltage motor monitoring system based on optical fiber power supply and wireless communication as claimed in claim 1, wherein the high-voltage motor management device further comprises a data interface for providing external data, and the data interface is a network port, an optical fiber port, a serial port or a wireless communication interface.
7. The high-voltage motor monitoring system based on optical fiber power supply and wireless communication is characterized in that the measurement wireless transceiver module and the management wireless transceiver module are 3G, 4G or WIFI modules.
8. The fiber optic-based power and wireless communication-based high-voltage motor monitoring system according to claim 1, wherein the power module comprises a battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911050157.4A CN110673034A (en) | 2019-10-31 | 2019-10-31 | High-voltage motor monitoring system based on optical fiber power supply and wireless communication |
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| CN201911050157.4A CN110673034A (en) | 2019-10-31 | 2019-10-31 | High-voltage motor monitoring system based on optical fiber power supply and wireless communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113095664A (en) * | 2021-04-06 | 2021-07-09 | 喻师师 | Cloud computing-based online real-time monitoring, regulating and controlling management cloud platform for transformer substation operation safety |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611955A (en) * | 2003-05-17 | 2005-05-04 | 杜玉晓 | Distributed intelligent monitoring system for motor |
| US20090075625A1 (en) * | 2007-09-14 | 2009-03-19 | James Jackson | Methods and apparatus to route emergency communication sessions |
| CN201577091U (en) * | 2009-11-30 | 2010-09-08 | 中国移动通信集团北京有限公司 | Optical fiber monitoring terminal |
| CN102435871A (en) * | 2011-09-05 | 2012-05-02 | 上海格蒂电力科技股份有限公司 | On-line monitoring system for data collection of electric arresters based on GPS (Global Positioning System) synchronization |
| CN103036206A (en) * | 2012-11-29 | 2013-04-10 | 潍柴动力股份有限公司 | Detecting approach and device of motor controller pre-fill line breakdown |
| CN104579427A (en) * | 2015-01-12 | 2015-04-29 | 国家电网公司 | Power wireless communication system and communication method |
| CN105681457A (en) * | 2016-03-02 | 2016-06-15 | 谢彬琪 | Embedded-wireless-network-sensor-based real-time multi-machine efficiency monitoring system |
| CN106249714A (en) * | 2016-08-23 | 2016-12-21 | 华电电力科学研究院 | A kind of distributed energy remote monitoring and managing system and method |
| CN107528609A (en) * | 2017-10-20 | 2017-12-29 | 北京凤凰汇通科技有限公司 | Wireless communication system |
| CN108398147A (en) * | 2017-02-06 | 2018-08-14 | 美环能股份有限公司 | The sensor-based system of optical fiber power supply |
| CN109633444A (en) * | 2018-12-29 | 2019-04-16 | 戴森优能(北京)新能源科技有限公司 | A kind of distributed motor fault monitoring system and monitoring method based on Internet of Things |
-
2019
- 2019-10-31 CN CN201911050157.4A patent/CN110673034A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611955A (en) * | 2003-05-17 | 2005-05-04 | 杜玉晓 | Distributed intelligent monitoring system for motor |
| US20090075625A1 (en) * | 2007-09-14 | 2009-03-19 | James Jackson | Methods and apparatus to route emergency communication sessions |
| CN201577091U (en) * | 2009-11-30 | 2010-09-08 | 中国移动通信集团北京有限公司 | Optical fiber monitoring terminal |
| CN102435871A (en) * | 2011-09-05 | 2012-05-02 | 上海格蒂电力科技股份有限公司 | On-line monitoring system for data collection of electric arresters based on GPS (Global Positioning System) synchronization |
| CN103036206A (en) * | 2012-11-29 | 2013-04-10 | 潍柴动力股份有限公司 | Detecting approach and device of motor controller pre-fill line breakdown |
| CN104579427A (en) * | 2015-01-12 | 2015-04-29 | 国家电网公司 | Power wireless communication system and communication method |
| CN105681457A (en) * | 2016-03-02 | 2016-06-15 | 谢彬琪 | Embedded-wireless-network-sensor-based real-time multi-machine efficiency monitoring system |
| CN106249714A (en) * | 2016-08-23 | 2016-12-21 | 华电电力科学研究院 | A kind of distributed energy remote monitoring and managing system and method |
| CN108398147A (en) * | 2017-02-06 | 2018-08-14 | 美环能股份有限公司 | The sensor-based system of optical fiber power supply |
| CN107528609A (en) * | 2017-10-20 | 2017-12-29 | 北京凤凰汇通科技有限公司 | Wireless communication system |
| CN109633444A (en) * | 2018-12-29 | 2019-04-16 | 戴森优能(北京)新能源科技有限公司 | A kind of distributed motor fault monitoring system and monitoring method based on Internet of Things |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113095664A (en) * | 2021-04-06 | 2021-07-09 | 喻师师 | Cloud computing-based online real-time monitoring, regulating and controlling management cloud platform for transformer substation operation safety |
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