CN107907242A - A kind of high voltage bus tie point passive contact-free temperature measuring equipment - Google Patents

A kind of high voltage bus tie point passive contact-free temperature measuring equipment Download PDF

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Publication number
CN107907242A
CN107907242A CN201711008590.2A CN201711008590A CN107907242A CN 107907242 A CN107907242 A CN 107907242A CN 201711008590 A CN201711008590 A CN 201711008590A CN 107907242 A CN107907242 A CN 107907242A
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CN
China
Prior art keywords
module
electric energy
microprocessor
voltage
rectifying
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CN201711008590.2A
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Chinese (zh)
Inventor
李志华
陈从靖
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Hohai University HHU
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Hohai University HHU
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Priority to CN201711008590.2A priority Critical patent/CN107907242A/en
Publication of CN107907242A publication Critical patent/CN107907242A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00Thermometers specially adapted for specific purposes
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention discloses a kind of high voltage bus tie point passive contact-free temperature measuring equipment, wherein, passive component includes electric energy receiving coil, the first rectifying and voltage-stabilizing module, temperature sensor, first microprocessor and data wireless sending module;Active parts includes voltage reduction module, the second rectifying and voltage-stabilizing module, the second microprocessor, communication module, data wireless reception module, rectification module, high-frequency inversion module and electric energy transmit coil.During work, electric energy receiving coil receives the electric energy power supply of active parts transmission, and the temperature and default id information that first microprocessor is measured temperature sensor by data wireless sending module are sent to active parts;Second microprocessor controls high-frequency inversion module to input current-modulation to electric energy transmit coil into high-frequency alternating current, and communication control module exports the temperature received and id information.The present invention realizes separation and its non-contact acquisition of electric energy in temperature-measuring part structure, has larger application value.

Description

A kind of high voltage bus tie point passive contact-free temperature measuring equipment
Technical field
The present invention relates to electronic measuring technology field, more particularly to a kind of high voltage bus tie point passive contact-free thermometric Device.
Background technology
With the continuous development of intelligent power grid technology, more and more high voltage switchyards need comprehensive monitoring and control System.Whether the wherein armature contact of high voltage bus tie point and high-voltage circuitbreaker contact well closes Operation of Electric Systems very much Key.Since the change of contact resistance will cause the change of contact temperature, connect in engineering frequently by measurement high voltage bus Whether the temperature of the armature contact of contact and high-voltage circuitbreaker is good to judge contact.Since tie point and contact are in high voltage Side, takes electric difficulty, the measurement of its temperature, currently known measuring method is by infrared non-cpntact measurement and thermometric end charged pool Measuring method.The also useful surface acoustic wave thermometric of state-of-the-art technology.Since environment is complicated in switchgear, infrared measurement of temperature is vulnerable to environment The interference of temperature causes thermometric to be not allowed.The temp measuring method of thermometric end charged pool can accurate measurement temperature, but due to need and Shi Genghuan batteries, difficulty is brought for system long term monitoring and maintenance.Surface acoustic wave thermometry is a kind of contactless temperature-measuring side Formula, but since technology is not yet ripe, its integrity problem does not solve at all.
The content of the invention
The technical problems to be solved by the invention are to be directed to the defects of involved in background technology, there is provided a kind of high pressure is female Line connection point passive contact-free temperature measuring equipment.
The present invention uses following technical scheme to solve above-mentioned technical problem:
A kind of high voltage bus tie point passive contact-free temperature measuring equipment, includes passive component and active parts;
The passive component includes electric energy receiving coil, the first rectifying and voltage-stabilizing module, temperature sensor, first microprocessor sum number According to wireless sending module;
The electric energy receiving coil is used to receive the electric energy of active parts transmission and outputs this to the first rectifying and voltage-stabilizing mould Block;
The first rectifying and voltage-stabilizing module be used to docking received electric energy supply electricity to respectively after rectifying and voltage-stabilizing temperature sensor, First microprocessor, data wireless sending module;
The temperature sensor is used to sense the temperature at its place, and passes it to the first microprocessor;
The first microprocessor is used to control the data wireless sending module by the temperature received and set in advance Id information passes to the active parts;
The active parts includes voltage reduction module, the second rectifying and voltage-stabilizing module, the second microprocessor, communication module, data are wireless Receiving module, rectification module, high-frequency inversion module and electric energy transmit coil;
The voltage reduction module is used to after alternating current is depressured export respectively to the second rectifying and voltage-stabilizing module, rectification module;
The second rectifying and voltage-stabilizing module is used to supply electricity to the second microprocessor respectively after carrying out rectifying and voltage-stabilizing to the alternating current after decompression Device, communication module, data wireless reception module;
The rectification module is used to pass to the high-frequency inversion module after carrying out rectification to the alternating current after decompression;
The data wireless reception module is used for the temperature and id information for receiving the passive component transmission, and passes it to institute State the second microprocessor;
Second microprocessor is used to control the high-frequency inversion module by the current-modulation after rectification module rectification into high frequency Alternating current is inputted to electric energy transmit coil, and communication control module exports the temperature received and id information;
The electric energy transmit coil is used to send electric energy to the electric energy receiving coil.
It is described as a kind of further prioritization scheme of high voltage bus tie point passive contact-free temperature measuring equipment of the invention First microprocessor, the second microprocessor use MSP430 microcontrollers.
It is shown as a kind of further prioritization scheme of high voltage bus tie point passive contact-free temperature measuring equipment of the invention Data wireless sending module, data wireless reception module use nRF905 wireless communication modules.
The present invention compared with prior art, has following technique effect using above technical scheme:
1. the non-contact power and data wireless transmission of passive temperature-measuring part are realized, on active parts and passive component structure Separation, so as to can not only solve the problems, such as the acquisition of power supply during the thermometric of high-pressure side, but also can isolate high pressure;
2. thermometric end is directly worked by induced potential without battery, improves the stability and practicality of system, be suitable for The measurement of high voltage bus tie point temperature and the measurement of breaker contact point temperature.
Brief description of the drawings
Fig. 1 is the principle of the present invention schematic diagram;
Fig. 2 is the workflow schematic diagram of passive component in the present invention;
Fig. 3 is the workflow schematic diagram of active parts in the present invention;
Fig. 4 is the circuit theory schematic diagram of medium-high frequency inverter module of the present invention;
Fig. 5 is the principle schematic of the first rectifying and voltage-stabilizing module in the present invention.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with brief description of the drawings, but the present embodiment is not used to limit The system present invention, every similar structure using the present invention and its similar change, should all be included in protection scope of the present invention.
As shown in Figure 1, the invention discloses a kind of high voltage bus tie point passive contact-free temperature measuring equipment, comprising passive Component and active parts;
The passive component includes electric energy receiving coil, the first rectifying and voltage-stabilizing module, temperature sensor, first microprocessor sum number According to wireless sending module;
The electric energy receiving coil is used to receive the electric energy of active parts transmission and outputs this to the first rectifying and voltage-stabilizing mould Block;
The first rectifying and voltage-stabilizing module be used to docking received electric energy supply electricity to respectively after rectifying and voltage-stabilizing temperature sensor, First microprocessor, data wireless sending module;
The temperature sensor is used to sense the temperature at its place, and passes it to the first microprocessor;
The first microprocessor is used to control the data wireless sending module by the temperature received and set in advance Id information passes to the active parts;
The active parts includes voltage reduction module, the second rectifying and voltage-stabilizing module, the second microprocessor, communication module, data are wireless Receiving module, rectification module, high-frequency inversion module and electric energy transmit coil;
The voltage reduction module is used to after alternating current is depressured export respectively to the second rectifying and voltage-stabilizing module, rectification module;
The second rectifying and voltage-stabilizing module is used to supply electricity to the second microprocessor respectively after carrying out rectifying and voltage-stabilizing to the alternating current after decompression Device, communication module, data wireless reception module;
The rectification module is used to pass to the high-frequency inversion module after carrying out rectification to the alternating current after decompression;
The data wireless reception module is used for the temperature and id information for receiving the passive component transmission, and passes it to institute State the second microprocessor;
Second microprocessor is used to control the high-frequency inversion module by the current-modulation after rectification module rectification into high frequency Alternating current is inputted to electric energy transmit coil, and communication control module exports the temperature received and id information;
The electric energy transmit coil is used to send electric energy to the electric energy receiving coil.
Alternating current first passes through voltage reduction module decompression into 24V alternating currents, and rectified module becomes alternating current to 24V AC powers all the way Change direct current into, then by high-frequency inversion module, the high-frequency alternating current of DC power conversion into 125KHz or 250KHz are sent into Electric energy transmit coil, its frequency are controlled by the second microprocessor.24V alternating currents another way gives second through the second rectifying and voltage-stabilizing module Microprocessor, communication module, data wireless reception module power supply.Data wireless reception module receives the temperature of passive component transmission Degree and id information, are sent into the second microprocessor and are handled and buffered, and are believed by the temperature and ID of communication module output measurement Breath.
Electric energy receiving coil senses the changes of magnetic field of electric energy transmitting coil transmitting, and electricity is sensed in electric energy receiving coil Kinetic potential, rectified unit rectification, charge pump boosting, conversion form burning voltage, are temperature sensor, first microprocessor and number Power according to wireless sending module.
In the embodiment of the present invention, the first microprocessor, the second microprocessor use MSP430 microcontrollers, data without Line sending module, data wireless reception module use nRF905 wireless communication modules.
In fig. 2, the second microprocessor MSP430 clocks are first set as auxiliary clock, by MSP430 microcontrollers to I/O Port, Interruption, nRF905 are initialized, and it is low-power consumption mode then to set MSP430, waits Interruption to arrive, in response Disconnected program, opens A/D conversions, by the temperature of temperature sensor measurement busbar tie point, and by test result, set in advance Id information and CRC data check bit carry out TEA encryptions again, and signal receiving unit is sent to finally by antenna, after being sent completely, NRF905 enters standby mode, waits Interruption.
In figure 3, high-frequency inversion module is controlled successively to first microprocessor MSP430 single-chip processor i/os port first SPWM signal outputs, communications setting and nRF905 pair with host computer initialize, and then wait for temperature data reception, number According to first carrying out TEA decryption after receiving and carry out CRC data verification, data are sent to host computer by bus after verification is errorless.
In Fig. 4, high-frequency inversion module is by 4 MOSFET(Q1, Q2, Q3, Q4)The full bridge inverter of composition, 4 MOSFET is driven by two panels IR2110, and Micro-processor MCV 1 produces two-way SPWM ripples, two panels IR2110 is given respectively, so as to control The break-make of 4 MOSFET, produces 125KHz or 250KHz high-frequency alternating currents, is sent into L1 coils by isolating transformer T1 and sends out Send.
In Figure 5, after electric energy receiving coil L2 coils obtain electric energy, by D7, D8, D99, the full-bridge of D10 diodes composition Rectification circuit switchs to direct current, and the standard output VCC1 that voltage stabilization is 3.3V is consumption by booster XC9801 after capacitance C8 filtering Can unit offer electric energy.
Those skilled in the art of the present technique are it is understood that unless otherwise defined, all terms used herein(Including skill Art term and scientific terminology)With the identical meaning of the general understanding with the those of ordinary skill in fields of the present invention.Also It should be understood that those terms such as defined in the general dictionary should be understood that with the context of the prior art The consistent meaning of meaning, and unless defined as here, will not be explained with the implication of idealization or overly formal.
Above-described embodiment, has carried out the purpose of the present invention, technical solution and beneficial effect further Describe in detail, it should be understood that the foregoing is merely the embodiment of the present invention, be not limited to this hair Bright, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done, should be included in the present invention Protection domain within.

Claims (3)

1. a kind of high voltage bus tie point passive contact-free temperature measuring equipment, it is characterised in that include passive component and active portion Part;
The passive component includes electric energy receiving coil, the first rectifying and voltage-stabilizing module, temperature sensor, first microprocessor sum number According to wireless sending module;
The electric energy receiving coil is used to receive the electric energy of active parts transmission and outputs this to the first rectifying and voltage-stabilizing mould Block;
The first rectifying and voltage-stabilizing module be used to docking received electric energy supply electricity to respectively after rectifying and voltage-stabilizing temperature sensor, First microprocessor, data wireless sending module;
The temperature sensor is used to sense the temperature at its place, and passes it to the first microprocessor;
The first microprocessor is used to control the data wireless sending module by the temperature received and set in advance Id information passes to the active parts;
The active parts includes voltage reduction module, the second rectifying and voltage-stabilizing module, the second microprocessor, communication module, data are wireless Receiving module, rectification module, high-frequency inversion module and electric energy transmit coil;
The voltage reduction module is used to after alternating current is depressured export respectively to the second rectifying and voltage-stabilizing module, rectification module;
The second rectifying and voltage-stabilizing module is used to supply electricity to the second microprocessor respectively after carrying out rectifying and voltage-stabilizing to the alternating current after decompression Device, communication module, data wireless reception module;
The rectification module is used to pass to the high-frequency inversion module after carrying out rectification to the alternating current after decompression;
The data wireless reception module is used for the temperature and id information for receiving the passive component transmission, and passes it to institute State the second microprocessor;
Second microprocessor is used to control the high-frequency inversion module by the current-modulation after rectification module rectification into high frequency Alternating current is inputted to electric energy transmit coil, and communication control module exports the temperature received and id information;
The electric energy transmit coil is used to send electric energy to the electric energy receiving coil.
2. high voltage bus tie point passive contact-free temperature measuring equipment as claimed in claim 1, it is characterised in that described first Microprocessor, the second microprocessor use MSP430 microcontrollers.
3. high voltage bus tie point passive contact-free temperature measuring equipment as claimed in claim 1, it is characterised in that shown data Wireless sending module, data wireless reception module use nRF905 wireless communication modules.
CN201711008590.2A 2017-10-25 2017-10-25 A kind of high voltage bus tie point passive contact-free temperature measuring equipment Pending CN107907242A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108711952A (en) * 2018-05-23 2018-10-26 上海工程技术大学 The passive cutting magnetic induction line electricity getting device of contactless electromagnetic type and method
CN110793668A (en) * 2019-10-30 2020-02-14 云南恒协科技有限公司 Resonance magnetic coupling induction electricity-taking self-powered wireless temperature measurement system

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CN108711952A (en) * 2018-05-23 2018-10-26 上海工程技术大学 The passive cutting magnetic induction line electricity getting device of contactless electromagnetic type and method
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CN110793668A (en) * 2019-10-30 2020-02-14 云南恒协科技有限公司 Resonance magnetic coupling induction electricity-taking self-powered wireless temperature measurement system

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