CN106054763B - Intelligent switchboard online monitoring method device - Google Patents

Intelligent switchboard online monitoring method device Download PDF

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Publication number
CN106054763B
CN106054763B CN201610338249.2A CN201610338249A CN106054763B CN 106054763 B CN106054763 B CN 106054763B CN 201610338249 A CN201610338249 A CN 201610338249A CN 106054763 B CN106054763 B CN 106054763B
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module
temperature
waveform
control terminal
operation control
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CN201610338249.2A
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CN106054763A (en
Inventor
王立
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Hangzhou Thick Energy Technology Co Ltd
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Hangzhou Thick Energy Technology Co Ltd
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/048Monitoring; Safety
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02Means for indicating or recording specially adapted for thermometers
    • G01K1/024Means for indicating or recording specially adapted for thermometers for remote indication

Abstract

The invention discloses a kind of intelligent switchboard online monitoring method devices, the device includes operation control terminal, with electrical measuring module, wireless temperature measurement transducing module, power supply adaptor and radio temperature sensor, the operation control terminal according to time shaft generate temperature information waveform and current information waveform and by the waveform of temperature information compared with the lifting trend of the waveform of current information pair, abnormality alarming information is generated when the lifting trend of two waveforms is inconsistent, the display module is for showing the high temperature alarm signal and abnormality alarming information.The measure and control device can not only be monitored the temperature and humidity in switchgear, moreover it is possible to which substantially analyzing the interior high temperature that offers for sale is as load excessive or as caused by component failure.The measure and control device can be convenient operations staff and know high temperature dangerous situation, moreover it is possible to make operations staff's timely learning security risk, in order to eliminate safe hidden trouble in time.

Description

Intelligent switchboard online monitoring method device
Technical field
The present invention relates to technical field of electric equipment, more specifically, it relates to which a kind of intelligent switchboard online monitoring method fills It sets.
Background technique
Switchgear is common transmission facility in electrical power transmission system, mainly by on-load switch, fuse and electric operating Zero device of the electric appliances such as mechanism is constituted, and the motor-operating mechanism is switched on and off for operational load switch, utilizes electronic behaviour Remote operation can be carried out to high-tension switch cabinet in the monitoring room of high-tension switch cabinet by making mechanism people.The equipment of switchgear exists When operation, because cabinet internal heat generation component is relatively more, temperature rise is excessively high to cause electrical mechanical performance and electric property decline, finally Lead to the job failure of high-voltage electrical apparatus, or even causes major accident.In order to guarantee that high-voltage electrical apparatus is safely operated within the length of service, It must be by temperature rise control in cabinet within the permission temperature as defined in mark.
Application No. is the Chinese patents of CN201521021900.0 to disclose a kind of switchgear with warning function, the switch Cabinet is provided with temperature sensor and alarm, and when in-cabinet temperature is excessively high, alarm can issue alarm signal, reminds operations staff It takes timely measure, prevents safety accident.
But although this switchgear can be in the excessively high alarm of in-cabinet temperature, can not substantially detect may be Component through breaking down.Operations staff can connect high temperature and load excessive under normal circumstances, and switchgear is first Device is various and switchgear cannot be operated arbitrarily, and operations staff will not usually check component, this results in security risk cannot It is eliminated in time, switchgear occurs high temperature again and the thing that dangerous situation is the morning and evening even occurs.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of intelligent switchboard online monitoring method dress Set, the measure and control device have self-checking function, can substantially judge when the temperature is excessively high in switchgear high temperature be by load excessive also It is convenient to remove a hidden danger in time caused by being component failure.
To achieve the above object, the present invention provides the following technical scheme that
A kind of intelligent switchboard online monitoring method device, including operation control terminal, with operation control terminal communication connection with electrical measurement It module and transmitter module, the power supply adaptor for powering to operation control terminal and with electrical measuring module and is set in switchgear Radio temperature sensor, the temperature of sampled point and pass through transmitter module general in radio temperature sensor measurement switchgear The temperature information measured is sent to operation control terminal, described to acquire the electric current of the sampled point with electrical measuring module and collect Current information is sent to operation control terminal by transmitter module, and the operation control terminal includes communication module, main control module, storage mould Block, processing module, display module and relay output module, the main control module generate high when in-cabinet temperature is more than setting value Warm alarm signal, the processing module generate the waveform of the temperature information and the waveform of the current information according to time shaft And by the waveform of temperature information compared with the lifting trend of the waveform of current information pair, when the lifting trend of two waveforms is inconsistent Abnormality alarming information is generated, the display module is for showing the high temperature alarm signal and abnormality alarming information.
Through the above scheme, when in-cabinet temperature is excessively high, device can issue high temperature alarm information, and device can compare sampling The temperature signal waveform of point and the voltage or current waveform of sampled point, if the variation tendency of the waveform of temperature signal and voltage or electricity The variation tendency for flowing the waveform of signal is inconsistent, can substantially think high temperature not and be by load it is excessive directly contribute, so Can substantially judge sampled point component whether failure.It is hidden safely that the measure and control device can be convenient operations staff's timely learning Suffer from, eliminates safe hidden trouble.
As a preferred solution: the radio temperature sensor and transmitter module are with ZigBee signal communication.
ZigBee Radio Transmission Technology has low in energy consumption, high reliablity, strong interference immunity and is easy to arrange net, with here may be used To be that measure and control device reliably acquires data.
As a preferred solution: the power supply adaptor is guide tracked power supply adaptor.
As a preferred solution: the display module is touching display screen.
As a preferred solution: the measure and control device further includes the Humidity Detection mould for controlling humidity in detection switch cabinet Block.
Through the above scheme, it can avoid humidity is excessive from influencing component in cabinet with the air humidity in pilot switch cabinet Normal operation.
Compared with prior art, the invention has the advantages that the measure and control device not only can be to temperature in switchgear and wet Degree is monitored, moreover it is possible to which substantially analyzing the interior high temperature that offers for sale is as load excessive or as caused by component failure.Observing and controlling dress Setting can be convenient operations staff and knows high temperature dangerous situation, moreover it is possible to make operations staff's timely learning security risk, in order to eliminate in time Security risk.
Detailed description of the invention
Fig. 1 is the principle of the present invention block diagram.
Specific embodiment
Referring to Fig.1, a kind of intelligent switchboard online monitoring method device, including operation control terminal, transmitter module and match electrical measurement Measure module.Wherein operation control terminal includes main control module, communication module, switching value acquisition module, display module, relay output mould Block and processing module.Operation control terminal is powered with guide tracked power supply adaptor, and the operating voltage of operation control terminal is 24V.Transmitter The AC power source of the external 220V of module.The communication module of operation control terminal is RS485 communication interface, and transmitter module is also equipped with RS485 communication interface, transmitter module is connect with operation control terminal by communication bus and the two is with Modbus-Rtu protocol communication. Switchgear is provided with several radio temperature sensors, and radio temperature sensor surveys the temperature of the sampled point in switchgear Amount, sampled point are the line contacts of component in cabinet.Radio temperature sensor integrates ZigBee sending module, transmitter module collection At ZigBee receiving module, the temperature of the sampled point measured is sent to by radio temperature sensor by ZigBee wireless signal Transmitter module, transmitter module, which is converted the temperature information received, makes the information that can be steered terminal recognition And the temperature information after conversion is sent to operation control terminal.The temperature information received is stored in memory module by operation control terminal. Main control module compares the temperature value in the temperature information received with setting value, if the former is greater than the latter, main control module is raw At high temperature alarm signal, operation control terminal sends high temperature alarm signal to the host computer of operation duty room, and display module shows this High temperature alarm signal, operations staff in duty room can timely learning switch cabinet temperature it is excessively high.The switching value of operation control terminal is adopted Egf block is used to acquire the status information of route disconnecting link, breaker etc..The relay output module of operation control terminal is used for control cabinet The movement such as interior blower, heater, dehumidifier.Voltage transformer and current transformer are installed in switchgear, wherein voltage is mutual Sensor is used to acquire the voltage at the sampled point both ends for being added in component;And current transformer is for acquiring the sampling for flowing through component The electric current of point.The output end of voltage transformer and current transformer is connect with the input terminal with electrical measuring module.With electrical measurement mould Block integrates RS485 communication interface, is connect with operation control terminal by communication bus and with electrical measuring module with Modbus-Rtu agreement Communication.Guide tracked power supply is provides the operating voltage of 5V with electrical measuring module.The output end of voltage transformer and current transformer It is connect with the signal input part of operation control terminal, voltage transformer and current transformer are by collected information of voltage and current information It is sent to operation control terminal.The voltage and current information received is stored in memory module by operation control terminal.In addition, in switchgear Several humidity sensors are also equipped with, humidity sensor is connect with transmitter module, wet in the cabinet that humidity sensor will test Degree information is sent to transmitter module, and operation control terminal is converted and be sent to humidity information by transmitter module, and main control module will connect The humidity value in humidity information received is compared with setting value, and when the former is greater than the latter, main control module generates high humility report Alert signal, operation control terminal send high humility alarm signal to host computer.
The built-in program for drawing waveform of the processing module of operation control terminal, the temperature that processing module receives operation control terminal are believed Breath and voltage and current information are depicted as the waveform diagram of temperature signal and the waveform diagram of voltage and current signals with time shaft. The display module of operation control terminal is touching display screen, and operation control terminal carries interactive interface, for operations staff and operation control terminal into Row human-computer interaction.Touching display screen shows the waveform of temperature signal and the waveform of voltage and current signals.Pass through Voltage waveform, operations staff can learn whether the operating voltage of component is stable.Alignment algorithm built in processing module, based on It calculates the jump range of voltage signal and compares the lifting trend of the waveform of temperature signal and the waveform of current signal.The algorithm is any It takes the voltage value at a time point compared with standard voltage value, finds out the absolute value of the difference of two values, by absolute value and reference value Compare size, if the former is less than the latter, in normal range (NR), the operating voltage of component is opposite for the jump of account for voltage signal Stablize;It is on the contrary then unstable.The algorithm transfer any two time point t1 and t2 temperature value T1 and T2 and current value I1 and I1 and I2 are subtracted each other and obtain difference C1 by I2, and T1 and T2 are subtracted each other and obtain difference C2, later by both C1, C2 and zero balancing judgement It is positive and negative.If C1 and C2 are positive number or are negative, illustrate that the waveform of temperature signal and the lifting of the waveform of current signal become Gesture is consistent, is otherwise exactly that lifting trend is inconsistent.For the component of normal work, the calorific value of component and the electricity for flowing through it Stream size is directly related, and the electric current for flowing through component increases, and the calorific value of component just will increase, otherwise will reduce.If stream Electric current through component, which becomes smaller, but component temperature goes up not down or flows through the electric current of component becomes larger but the temperature of component Anti- drop is not risen, illustrates that component is likely to occur failure.In this case, processing module generates abnormality alarming information, manipulation Terminal sends abnormality alarming information to host computer, while touching display screen shows the abnormality alarming information.
After operations staff learns high temperature alarm signal, rushes towards scene and inspection is carried out to abnormal switchgear, operations staff can It is steady in operating voltage to check temperature signal waveform, waveform voltage signal and current signal waveform from touching display screen Under the premise of fixed, if current signal waveform is consistent with the lifting trend of temperature signal waveform, component failure can be excluded substantially The case where, at this time it is considered that it is as caused by load excessive that switch cabinet temperature is excessively high, limitation load is can be improved in operations staff Mode come give switchgear cooling;If current signal waveform and the lifting trend of temperature signal waveform are inconsistent, it can be determined that be Component failure, it should investigation maintenance be carried out to component in cabinet, eliminated safe hidden trouble.
The present invention is other than the running state monitoring to switchgear, moreover it is possible to rough analysis offer for sale in whether have a component therefore Barrier, facilitates operation and maintenance.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (5)

1. a kind of intelligent switchboard online monitoring method device, it is characterized in that: matching including operation control terminal, with what operation control terminal communicated to connect Electrical measuring module and transmitter module, the power supply adaptor for powering to operation control terminal and with electrical measuring module and set on opening The radio temperature sensor in cabinet is closed, the radio temperature sensor measures the temperature of sampled point in switchgear and passes through transmitter The temperature information measured is sent to operation control terminal by module, described to acquire the electric current of the sampled point with electrical measuring module and incite somebody to action Collect current information and operation control terminal be sent to by transmitter module, the operation control terminal include communication module, main control module, Memory module, processing module, display module and relay output module, the main control module is when in-cabinet temperature is more than setting value High temperature alarm signal is generated, the processing module generates the waveform and the current information of the temperature information according to time shaft Waveform and by the waveform of temperature information compared with the lifting trend of the waveform of current information pair, two waveforms lifting trend not Abnormality alarming information is generated when consistent, the display module is for showing the high temperature alarm signal and abnormality alarming information.
2. intelligent switchboard online monitoring method device according to claim 1, it is characterized in that: the radio temperature sensor with Transmitter module is with ZigBee signal communication.
3. intelligent switchboard online monitoring method device according to claim 1, it is characterized in that: the power supply adaptor is guide rail Formula power supply adaptor.
4. intelligent switchboard online monitoring method device according to claim 1, it is characterized in that: the display module is touch Display screen.
5. intelligent switchboard online monitoring method device according to claim 1, it is characterized in that: the measure and control device further includes using In the humidity detecting module for controlling humidity in detection switch cabinet.
CN201610338249.2A 2016-05-19 2016-05-19 Intelligent switchboard online monitoring method device Active CN106054763B (en)

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Publication number Priority date Publication date Assignee Title
CN111562023B (en) * 2020-05-22 2021-10-08 上海红檀智能科技有限公司 Device and method for comprehensively monitoring and early warning equipment temperature in wind power plant box transformer substation cabin
CN111930038A (en) * 2020-07-31 2020-11-13 福建省三星电气股份有限公司 Intelligent switch cabinet online measurement and control device

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CN102474130A (en) * 2009-07-08 2012-05-23 Abb研究有限公司 Bus condition monitoring system
CN204241111U (en) * 2014-09-26 2015-04-01 国家电网公司 A kind of switch cubicle accident intelligent early-warning device
CN105513253A (en) * 2016-03-03 2016-04-20 国网山东省电力公司郓城县供电公司 Low-voltage distribution cabinet fire alarm system

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KR20070025245A (en) * 2005-09-01 2007-03-08 박중현 Transmitter for 2 wire
CN103529351B (en) * 2013-10-29 2016-03-09 李宏仁 High-tension switch cabinet thermal defect on-line monitoring system and method
KR101408820B1 (en) * 2014-02-04 2014-06-19 유한회사 주왕산업 Remote monitoring apparatus for distributing board using mobile app and method therof
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CN102474130A (en) * 2009-07-08 2012-05-23 Abb研究有限公司 Bus condition monitoring system
CN204241111U (en) * 2014-09-26 2015-04-01 国家电网公司 A kind of switch cubicle accident intelligent early-warning device
CN105513253A (en) * 2016-03-03 2016-04-20 国网山东省电力公司郓城县供电公司 Low-voltage distribution cabinet fire alarm system

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