CN110456715A - A kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology - Google Patents
A kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology Download PDFInfo
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- CN110456715A CN110456715A CN201910793014.6A CN201910793014A CN110456715A CN 110456715 A CN110456715 A CN 110456715A CN 201910793014 A CN201910793014 A CN 201910793014A CN 110456715 A CN110456715 A CN 110456715A
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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
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- 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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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
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Abstract
The present invention relates to power channel monitoring technology fields, more particularly to it is based on NB-IoT technology electric power channel ambient intelligence monitoring system, the environmental information in electric power channel environment can be acquired continuous, dynamically, in real time, and keypoint part includes the running state information of cable and cable intermediate joint, and collected abnormal state information is respectively transmitted monitoring center and mobile monitor end to distal end, or be converted to control instruction signal and be sent to intelligent Actuator.By the operating status for monitoring the live transmission line of electricity of system feedback, intelligent Actuator can be started automatically according to preset service condition, stop or other execute movement, also it can receive distally to execute instruction act accordingly and environment be adjusted, so as to improve the operating status or environment of transmission line of electricity in electric power channel conditions.Meanwhile the present invention is based on the three-phase imbalance adjustment control method that above-mentioned intelligent monitor system also proposed a kind of multi-data fusion, it can more effectively improve the running environment of transmission line of electricity in electric power channel conditions.
Description
Technical field
The present invention relates to power channel monitoring technology field more particularly to a kind of electric power channel rings based on NB-IoT technology
Border intelligent monitor system.
Background technique
Power cable is the key that the primary equipment of urban power distribution network, in order to guarantee the operation of distribution network system, promotion pair
Early warning and the Ability of emergency management of electric power channel inner cable, cable intermediate joint failure or emergency event guarantee operation maintenance personnel work
The safety for making environment carries out continuous, dynamic, real-time dynamic monitoring to electric power channel, and it is intelligent, long-range to environmental abnormality into
Row actively improves and intervenes particularly significant.
Present electric power channel environmental monitoring has the following problems:
1. lacking to the dynamic of electric power channel environment, real-time, continuous monitoring capacity.Usual power cable layer is in electric power
In channel or tunnel, environment is opposite to be occluded, and electric power channel is easy accumulation pernicious gas and water, and harmful gas concentration is excessively high or long-pending
Water seriously can all cause the danger of operation maintenance personnel or O&M difficult.When O&M, existing technical solution is main or scene is supervised
It surveys, is influenced by work surface, can not achieve continuous, dynamic, real-time monitoring.
2. lacking the intelligent intervention capacity to electric power channel environment.Because every disk cable has fixed length, in order to lay
Longer cable run, it is necessary to which multistage is connected by cable intermediate joint.The of low quality of cable intermediate joint, connection are not
Tightly, contact resistance is excessive, and the exception of transition joint working condition timely cannot be found and be handled in the process of running, can be caused
It overheats cable connector and punctures insulation, cause electric power channel that fire occurs.Existing technology cannot find becoming for dangerous generation
Gesture, and actively make counter-measure.
3. lacking the information transmission means for being suitble to electric power channel conditions.Electric power channel geographical location span is big, inside channel
Wireless signal covering is poor, and the various kinds of sensors, intelligent controller and remote monitoring terminal in channel realize that remote-wireless is logical
Letter is more difficult or communication quality is not good enough.And it is laid with the higher cost of cable network, maintenance difficulties are big.
Summary of the invention
The technical problem to be solved in the present invention are as follows: provide a kind of based on NB-IoT technology electric power channel ambient intelligence monitoring system
System, can continuous, dynamic, the environmental information in acquisition electric power channel environment and keypoint part include cable and electricity in real time
The running state information of cable transition joint, and collected abnormal state information is respectively transmitted to monitoring center and shifting to distal end
Dynamic monitoring client, or be converted to control instruction signal and be sent to intelligent Actuator.Intelligent Actuator can be according to preset fortune
Row condition started automatically, stop or other execute movement.Intelligent Actuator also can receive remote monitoring center or
Executing instruction for mobile monitor end carries out corresponding execution movement.By the operation shape for monitoring the live transmission line of electricity of system feedback
State, automatic adjustment of the intelligent Actuator to the running environment of transmission line of electricity, or be adjusted according to remote control commands, thus
The operating status or environment for improving transmission line of electricity in electric power channel conditions avoid that power failure occurs, to improve transmission line of electricity
Reliability, ensure power supply quality.And solves the networking in existing electric power channel environment and information exchange difficulty and fortune
Tie up the problems such as at high cost.Meanwhile the present invention is based on above-mentioned intelligent monitor systems also proposed a kind of three-phase of multi-data fusion not
Balance adjustment control method can more have the effective running environment for improving transmission line of electricity in electric power channel conditions.
Technical solution of the present invention are as follows: a kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology, including ring
Border monitoring modular (1), cable monitoring running state module (2), cable intermediate joint monitoring running state module (3), NB-IoT
Base station (4), NB-IoT terminal (5), NB-IoT core network (6), remote terminal unit RTU (7), three-phase imbalance regulating device
(8), single-chip microcontroller (9), intelligent Actuator (10), remote monitoring center computer (11), telemedicine education end (12), and
The power supply module (13) of each equipment and module, the environment monitoring module (2) include the biography connecting respectively with the single-chip microcontroller (9)
Sensor (14), the sensor (14) are set to inside the electric power channel for monitoring environmental parameter, and the single-chip microcontroller (9) is logical
Bus connection NB-IoT terminal (5) is crossed, when single-chip microcontroller (9) judges that environmental parameter reaches preset threshold in the electric power channel,
The terminal network and NB-IoT core network (6) being made up of the base station NB-IoT (4) and NB-IoT terminal (5) are held to intelligence respectively
Row mechanism (10), remote monitoring center computer (11) and telemedicine education end (12) send observing and controlling information, the cable fortune
Row state monitoring module (2) includes the temperature sensor (15) connecting respectively with the single-chip microcontroller (9), the temperature sensor
(15) cable surface is set to for monitoring cable surface temperature, cable intermediate joint monitoring running state module (3) packet
Include the temperature sensor (16) connecting respectively with the single-chip microcontroller (9), temperature sensor (16) peace of single-chip microcontroller (9) connection
It is placed in cable intermediate joint and judges the cable surface or/and institute for monitoring the temperature of cable intermediate joint, single-chip microcontroller (9)
When stating the temperature arrival preset temperature threshold of cable intermediate joint, by NB-IoT network respectively to remote terminal unit RTU
(7), three-phase imbalance regulating device (8), intelligent Actuator (10), remote monitoring center computer (11) and remote mobile prison
It controls end (12) and sends observing and controlling information.
Further, the sensor (14) is Temperature Humidity Sensor (17), and the intelligent Actuator (10) is intelligence
Ventilation device (19) and/or intelligent cooling dehumidification device (20), Temperature Humidity Sensor (17) are set to inside the electric power channel
For monitoring temperature and humidity, when single-chip microcontroller (9) judges that temperature and humidity reaches preset first threshold value in the electric power channel, pass through
The terminal network of the base station NB-IoT (4) and NB-IoT terminal (5) composition sends observing and controlling information, starting to intelligent Actuator (10)
Intelligent ventilating apparatus (19) and/or intelligent cooling dehumidification device (20) simultaneously improve power channel environment, arrive electric power channel
Interior temperature and humidity stops working when being lower than first threshold, and otherwise, single-chip microcontroller (9) judges in electric power channel that temperature and humidity reaches default the
When two threshold values, alarm signal is sent to by remote monitoring center computer by terminal network and NB-IoT core network (6)
(11) and/or telemedicine education end (12).
Further, the sensor (14) is combustible gas sensor (21) and/or toxic gas sensor (22), institute
Stating intelligent Actuator (10) is Intelligent ventilating apparatus (19), combustible gas sensor (21) and/or toxic gas sensor
(22) it is set to for monitoring the gas concentration of fuel gas and/or toxic gas inside the electric power channel, single-chip microcontroller (9) is sentenced
When gas concentration reaches preset first threshold value in the disconnected electric power channel out, pass through the base station NB-IoT (4) and NB-IoT terminal (5)
The terminal network of composition sends observing and controlling information to Intelligent ventilating apparatus (19), starts Intelligent ventilating apparatus (19) and to power channel
Environment is improved, to electric power channel in gas concentration be lower than first threshold when stop working, otherwise, single-chip microcontroller (9) is judged
When gas concentration reaches default second threshold in electric power channel, by terminal network and NB-IoT core network (6) by alarm signal
Number it is sent to remote monitoring center computer (11) and/or telemedicine education end (12).
Further, the sensor (14) is oxygen sensor (23), and the intelligent Actuator (10) is that intelligence is logical
Wind apparatus (19), oxygen sensor (23) are set to inside the electric power channel for monitoring oxygen gas concentration, single-chip microcontroller (9)
When judging that gas concentration is lower than preset first threshold value in the electric power channel, pass through the base station NB-IoT (4) and NB-IoT terminal
(5) terminal network formed sends observing and controlling information to Intelligent ventilating apparatus (19), starts Intelligent ventilating apparatus (19) and to electric power
Channel environment is improved, to electric power channel in gas concentration be higher than first threshold when stop working, otherwise, single-chip microcontroller (9) is sentenced
When gas concentration is lower than default second threshold in disconnected electric power channel out, it will be reported by terminal network and NB-IoT core network (6)
Alert signal is sent to remote monitoring center computer (11) and/or telemedicine education end (12).
Further, the single-chip microcontroller (9) judges that the cable surface or/and the temperature of the cable intermediate joint arrive
When up to preset temperature threshold, the terminal network that is made up of the base station NB-IoT (4) and NB-IoT terminal (5) is to intelligent Actuator
(10) observing and controlling information is sent, intelligent Actuator (10) and cooling down to cable or/and the cable intermediate joint are started,
It stops working when being lower than first threshold to cable or/and the cable intermediate joint temperature, otherwise, single-chip microcontroller (9) judgement
When temperature reaches default second threshold in the electric power channel out, pass through terminal network and NB-IoT core network (6) Xiang Yuancheng
Monitoring center computer (11) and/or telemedicine education end (12) send observing and controlling information, carry out active control by operation maintenance personnel
Intervene, stops working when being lower than first threshold to cable or/and the cable intermediate joint temperature, otherwise, the single-chip microcontroller (9)
When judging in the electric power channel that temperature reaches default third threshold value, by terminal network and NB-IoT core network (6) to
Remote terminal unit RTU (7) issues control instruction, opens the overcurrent protection relay of remote terminal unit RTU (7).
Further, the temperature sensor (16) is DS1820 temperature sensor (24), and the single-chip microcontroller (9) of connection is
AT89C52 single-chip microcontroller (25), AT89C52 single-chip microcontroller (25) are connected with NB-IoT terminal (5) by RS232 bus, cable operation
Status monitoring uses point type temperature monitoring, several temperature sensors are according to the requirement scattered resettlement of monitoring in important on cable
Monitor position.
Further, the temperature sensor (15) is GSDTS-04-10 temperature sensor (26), GSDTS-04-10 temperature
Spending sensor (26) is distributed optical fiber temperature sensor, three distribution type fiber-optics of GSDTS-04-10 temperature sensor (26)
The surface of insulating layer of cable is respectively disposed on according to 120 ° of angles.
Further, the Intelligent ventilating apparatus (19) includes paddle motor (27), A.C. contactor (28).
Further, the NB-IoT terminal (5) is that Shanghai is moved remote BC28 (29), and BC28 (29) includes base band, radio frequency
The circuits such as power management, peripheral interface.
Further, the remote monitoring center computer (11) and telemedicine education end (12) include human-machine operation
The virtual control panel (30) of interface intelligent Actuator, for remotely controlling intelligent Actuator (10).
Further, the three-phase imbalance regulating device (8) includes load-side three-phase imbalance regulating device (31)
And/or source side three-phase imbalance regulating device (32), the load-side three-phase imbalance regulating device (31) includes commutation
Module (33), one-chip computer module (9), signal detection module (34) and NB-IoT terminal (5), signal detection module (34) input connect
It is connected to three-phase wire, signal detection module (34) output is connected with one-chip computer module (9), and one-chip computer module (9) is connected by bus
NB-IoT terminal (5) are connect, and are connected to NB-IoT network, the output of one-chip computer module (9) and the control of commutation module (33) are returned
Road is connected, and the input side of commutation module (33) major loop and A, B, C threephase cable of distribution line connect, the commutation mould
The input side of block (33) major loop, which is set, is connected to output there are three static contact and a moving contact, moving contact, is connected to as L line
On the power supply phase terminal terminal of load, with N phase line be jointly single-phase load power supply, three static contacts respectively with distribution line
A, B, C threephase cable connect, and moving contact can need to switch between three static contacts according to phase modulation, realize single-phase load
L line switches between A, B, C threephase cable, and the source three-phase imbalance regulating device (32) is by switch motion module
IGBT (35), reactor and capacitor group (36), one-chip computer module (9), NB-IoT terminal (5) are constituted, switch motion module
IGBT (35) is parallel on the threephase cable of source side power grid by conducting wire and breaker, and switch motion module I GBT's (35) is defeated
It is connected to reactor and capacitor group (36) out, one-chip computer module (9) is connect by conducting wire with switch motion module I GBT (35),
It is provided with multiple groups in reactor and capacitor group (36) group and compensates grade, switching control is realized by one-chip computer module (9), monolithic
Machine module (9) connects NB-IoT terminal (5) by bus, and is connected to NB-IoT network.
A kind of multi-data fusion three-phase imbalance adjustment control method for above-mentioned intelligent monitor system, by detection
Three-phase current signal and the temperature signal of threephase cable carry out fusion as three-phase imbalance and adjust control signal, including it is following
Implementation steps:
Step 1: signal detection module detects load-side three-phase current signal I respectivelya, Ib, Ic；
Step 2: cable monitoring running state module detects the temperature signal T of threephase cable respectivelya, Tb, Tc；
Step 3: setting two-stage threephase load current unbalance factor threshold value δil, δih, wherein δtlFor under current unbalance factor
Limit threshold value, δihFor current unbalance factor upper limit threshold, threephase cable temperature degree of unbalancedness threshold value δtl, δth, wherein δtlFor three-phase
The temperature degree of unbalancedness lower threshold of cable, δthFor the temperature degree of unbalancedness upper limit threshold of threephase cable；
Step 4: calculating separately threephase load current unbalance factor δiWith threephase load temperature degree of unbalancedness δt, in which:
Step 5: if δt≤δil, and δt≤δtl, 10 are thened follow the steps, if δt≥δthAnd/or δt≥δthThen execute step
Rapid 6, if δil< δt< δih, and δt≤δtl7 are thened follow the steps, if δtl< δt< δth, and δi≤δil8 are thened follow the steps, such as
Fruit δil< δi< δih, and δtl< δi< δthThen follow the steps 9；
Step 6: δi≥δihAnd/or δt≥δth, then called by remote monitoring center computer and telemedicine education end excellent
The optimisation strategy for changing commutation determines that commutation instructs and sends commutation instruction to different load-side regulator control systems, controls moving contact
Its phase sequence of powering of movement switching, executes step 1 after having implemented load-side regulator control system commutation operation again；
Step 7: δil< δi< δih, and δt≤δtl, with δiFor adjustment foundation, the power factor of the source side is calculated, and
According to power factor, judgement is inductive reactive power or capacitive reactive power, then carries out capacitive current compensation if it is inductive reactive power, if
The reactive power characteristic is that capacitive reactive power then carries out inductance current compensation, executes step 1 again after having implemented adjustment；
Step 8: δtl< δt< δth, and δi≤δil, with δtFor adjustment foundation, the power factor of the source side is calculated, and
According to power factor, judgement is inductive reactive power or capacitive reactive power, then carries out capacitive current compensation if it is inductive reactive power, if
The reactive power characteristic is that capacitive reactive power then carries out inductance current compensation, executes step 1 again after having implemented adjustment；
Step 9: δil< δi< δih, and δtl< δt< δth, merge δiAnd δtFor δit, then
With δitFor adjust foundation, calculate the power factor of the source side, and according to power factor, judgement be inductive reactive power also
It is capacitive reactive power, then carries out capacitive current compensation if it is inductive reactive power, if the reactive power characteristic is capacitive reactive power
Inductance current compensation is carried out, executes step 1 again after having implemented adjustment；
Step 10: being sampled next time according to the sampling period of setting, execute step 1.
Beneficial effects of the present invention: present invention design realizes a kind of electric power channel ambient intelligence based on NB-IoT technology
Monitoring system, including environment monitoring module, cable monitoring running state module, cable intermediate joint monitoring running state module,
The base station NB-IoT and NB-IoT terminal, NB-IoT core network, remote terminal unit RTU, three-phase imbalance regulating device, list
The power supply mould of piece machine, intelligent Actuator, remote monitoring center computer, telemedicine education end and each equipment and module
Block.It can continuous, dynamic, the real-time environmental information and keypoint part packet acquired in electric power channel environment by this system
The running state information of cable and cable intermediate joint is included, and collected abnormal state information is respectively transmitted to the prison of distal end
Control center and mobile monitor end, or be converted to control instruction signal and be sent to intelligent Actuator.Intelligent Actuator can be by
Started automatically according to preset service condition, stopped or other execute movement.Intelligent Actuator also can receive distal end and supervise
Control center or executing instruction for mobile monitor end carry out corresponding execution movement.By the live power transmission line for monitoring system feedback
The operating status on road, automatic adjustment of the intelligent Actuator to the running environment of transmission line of electricity, or according to remote control commands into
Row is adjusted, and so as to improve the operating status or environment of transmission line of electricity in electric power channel conditions, avoids that power failure occurs, to mention
The reliability of high transmission line of electricity ensures power supply quality.And solve networking and information exchange in existing electric power channel environment
The problems such as difficult and O&M cost is high.Meanwhile the present invention is based on above-mentioned intelligent monitor system also proposed it is a kind of most according to melting
The three-phase imbalance adjustment control method of conjunction can more have the effective operation ring for improving transmission line of electricity in electric power channel conditions
Border.
Detailed description of the invention
The connection figure of power channel ambient intelligence monitoring system of the Fig. 1 based on NB-IoT technology
Fig. 2 environment monitoring module and NB-IoT terminal connection figure
Fig. 3 cable intermediate joint monitoring running state module and NB-IoT terminal connection figure
Fig. 4 cable monitoring running state module and NB-IoT terminal connection figure
The surface-mount type optical fiber and cabling diagram of Fig. 5 cable monitoring running state module
Fig. 6 intelligent control ventilation device connection figure
Fig. 7 BC29 terminal hardware frame
Fig. 8 source side loads balance control connection figure
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
According to embodiment of the present invention, a kind of electric power channel based on NB-IoT technology of the invention in conjunction with Fig. 1
Ambient intelligence monitoring system, including the operation of environment monitoring module (1), cable monitoring running state module (2), cable intermediate joint
State monitoring module (3), the base station NB-IoT (4), NB-IoT terminal (5), NB-IoT core network (6), remote terminal unit RTU
(7), three-phase imbalance regulating device (8), single-chip microcontroller (9), intelligent Actuator (10), remote monitoring center computer (11),
The power supply module (13) of telemedicine education end (12) and each equipment and module.
According to embodiment of the present invention, in conjunction with the sensor of the environment monitoring module of the present invention of Fig. 2,3,6 (1)
It (14) is Temperature Humidity Sensor (17) that intelligent Actuator (10) is Intelligent ventilating apparatus (19) and/or intelligent cooling dehumidifying dress
It sets (20), Temperature Humidity Sensor is set to inside the electric power channel for monitoring temperature and humidity.Wherein, Intelligent ventilating apparatus
(19) and/or between intelligent cooling dehumidification device (20) and A.C. contactor it is connect using 3 phase contacts.Work as Intelligent ventilating apparatus
(19) and/or intelligent cooling dehumidification device (20) is in running order, and 3 phase contacts are in attracting state；It disconnects in controller
Relay normally-closed contact, circuit is in off state at this time, and contactor disconnects, and three phase mains power supply stops.In controller
Single-chip microcontroller (9) use atmel corp AT89C52 single-chip microcontroller (25).Temperature Humidity Sensor (17) is Temperature Humidity Sensor
SHT10, for measuring the temperature and humidity in electric power channel.SHT10 sensor is single-chip digital temperature and humidity integrated sensor.The sensing
Device is made of 1 capacitive polymer wetting components and 1 energy gap type temperature measurement element, and with 1 14 A/D converter and 1
A 2-wire digital interface seamless combination in single-chip.
It according to embodiment of the present invention, is combustible gas sensor (21) in conjunction with Fig. 2 inventive sensor (14)
And/or toxic gas sensor (22), the intelligent Actuator (10) are Intelligent ventilating apparatus (19), combustible gas sensor
(21) and/or toxic gas sensor (22) is set to inside the electric power channel for monitoring fuel gas and/or having poison gas
The gas concentration of body.
According to embodiment of the present invention, it is in conjunction with the single-chip microcontroller of Fig. 3 cable monitoring running state module of the present invention
AT89C52 single-chip microcontroller (25), temperature sensor (16) are DS1820 (24), and single-chip microcontroller is AT89C52 single-chip microcontroller (25) and NB-
IoT terminal (5) is connected by RS232 bus, and cable monitoring running state uses point type temperature monitoring, several temperature sensors
According to the requirement scattered resettlement of monitoring in monitoring position (such as cable connector) important on cable.
According to embodiment of the present invention, in conjunction with Fig. 4, the single-chip microcontroller of 5 cable monitoring running state modules of the present invention
For AT89C52 single-chip microcontroller (25), temperature sensor (15) is distributed optical fiber temperature sensor, i.e. GSDTS-04-10 temperature passes
Sensor (26), AT89C52 single-chip microcontroller (25) are connected with NB-IoT terminal (5) by RS232 bus, cable monitoring running state light
Fine formula temperature monitoring, three distributed optical fiber temperature sensors are respectively disposed on the surface of insulating layer of cable according to 120 ° of angles.
It according to embodiment of the present invention, is BC28 (29) in conjunction with Fig. 7 NB-IoT terminal (5), BC28 (29) includes
The circuits such as base band, radio-frequency power supply management, peripheral interface.
According to embodiment of the present invention, in conjunction with Fig. 8 three-phase imbalance regulating device (8) include load-side three-phase not
Balance regulator (31) and/or source side three-phase imbalance regulating device (32), the load-side three-phase imbalance are adjusted
Device (31) includes commutation module (33), one-chip computer module (9), signal detection module (34) and NB-IoT terminal (5), signal inspection
It surveys module (34) input and is connected to three-phase wire, signal detection module (34) output is connected with one-chip computer module (9), single-chip microcontroller mould
Block (9) connects NB-IoT terminal (5) by bus, and is connected to NB-IoT network, the output of one-chip computer module (9) and commutation mould
The control loop of block (33) is connected, and the input side of commutation module (33) major loop and A, B, C threephase cable of distribution line connect
It connects, the input side of described commutation module (33) major loop is set there are three static contact and a moving contact, and moving contact is connected to defeated
Out, it is connected on the power supply phase terminal terminal of load as L line, is jointly single-phase load power supply, three static contacts with N phase line
It is connect respectively with A, B, C threephase cable of distribution line, moving contact can need to be cut between three static contacts according to phase modulation
It changes, realizes that the L line of single-phase load switches between A, B, C threephase cable, the source three-phase imbalance regulating device
(34) by switch motion module I GBT (35), reactor and capacitor group (36), one-chip computer module (9), NB-IoT terminal (5) structure
At switch motion module I GBT (35) is parallel on the threephase cable of source side power grid by conducting wire and breaker, switch motion
The output of module I GBT (35) is connected to reactor and capacitor group (36), and one-chip computer module (9) passes through conducting wire and switch motion
It is provided with multiple groups in module I GBT (35) connection, reactor and capacitor group (36) group and compensates grade, switching is controlled by monolithic
Machine module (9) realizes that one-chip computer module (9) connects NB-IoT terminal (5) by bus, and is connected to NB-IoT network.
According to embodiment of the present invention, a kind of multi-data fusion three-phase for above-mentioned intelligent monitor system is uneven
Weigh adjustment control method, carries out fusion by the temperature signal of three-phase current signal and threephase cable to detection and is used as three-phase not
Balance adjustment controls signal, including following implementation steps:
Step 1: signal detection module detects load-side three-phase current signal I respectivelya=5, Ib=10, Ic=15；
Step 2: cable monitoring running state module detects the temperature signal T of threephase cable respectivelya=55 DEG C, Tb=45 DEG C,
Tc=74 DEG C；
Step 3: setting two-stage threephase load current unbalance factor threshold value δil=20%, δih=60%, threephase cable temperature
Degree of unbalancedness threshold value δtl=20%, δth=60%,；
Step 4: calculating separately threephase load current unbalance factor δiWith threephase load temperature degree of unbalancedness δt, in which:
Step 5: acquiring δi=50%, δt=28%, δil< δi< δih, and δtl< δt< δthThen follow the steps 9；
Step 9: δil< δi< δih, and δtl< δi< δth, merge δiAnd δtFor δit, then
With δit=42% is adjustment according to load balance compensation is carried out, and step 1 is executed after adjustment；
The above is present pre-ferred embodiments, for the ordinary skill in the art, according to the present invention
Introduction, in the case where not departing from the principle of the present invention and spirit, changes, modifications, replacement and change that embodiment is carried out
Shape is still fallen within protection scope of the present invention.
Claims (10)
1. a kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology, including environment monitoring module (1), cable fortune
Row state monitoring module (2), cable intermediate joint monitoring running state module (3), the base station NB-IoT (4), NB-IoT terminal
(5), NB-IoT core network (6), remote terminal unit RTU (7), three-phase imbalance regulating device (8), single-chip microcontroller (9), intelligence
The power supply of executing agency (10), remote monitoring center computer (11), telemedicine education end (12) and each equipment and module
Module (13), the environment monitoring module (2) include the sensor (14) connecting respectively with the single-chip microcontroller (9), the sensing
Device (14) is set to for monitoring environmental parameter inside the electric power channel, and the single-chip microcontroller (9) connects NB-IoT by bus
Terminal (5) passes through the base station NB-IoT (4) when single-chip microcontroller (9) judges that environmental parameter reaches preset threshold in the electric power channel
Terminal network and NB-IoT core network (6) with NB-IoT terminal (5) composition is long-range to supervise respectively to intelligent Actuator (10)
It controls central computer (11) and telemedicine education end (12) and sends observing and controlling information, the cable monitoring running state module (2)
Including the temperature sensor (15) connecting respectively with the single-chip microcontroller (9), the temperature sensor (15) is set to cable surface
For monitoring cable surface temperature, the cable intermediate joint monitoring running state module (3) include respectively with the single-chip microcontroller
(9) temperature sensor (16) of the temperature sensor (16) connected, single-chip microcontroller (9) connection is placed in cable intermediate joint use
In the temperature of monitoring cable intermediate joint, single-chip microcontroller (9) judges the temperature of the cable surface or/and the cable intermediate joint
When degree reaches preset temperature threshold, dress is adjusted to remote terminal unit RTU (7), three-phase imbalance respectively by NB-IoT network
It sets (8), intelligent Actuator (10), remote monitoring center computer (11) and telemedicine education end (12) and sends observing and controlling letter
Breath.
2. a kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology according to claim 1, feature
It is that the sensor (14) are Temperature Humidity Sensor (17), the intelligent Actuator (10) is Intelligent ventilating apparatus (19)
And/or intelligent cooling dehumidification device (20), Temperature Humidity Sensor (17) are set to inside the electric power channel for monitoring temperature
And humidity passes through the base station NB-IoT when single-chip microcontroller (9) judges that temperature and humidity reaches preset first threshold value in the electric power channel
(4) and the terminal network of NB-IoT terminal (5) composition sends observing and controlling information to intelligent Actuator (10), starts intelligent aeration dress
It sets (19) and/or intelligent cooling dehumidification device (20) and power channel environment is improved, it is low to arrive temperature and humidity in electric power channel
It stops working when first threshold, otherwise, when single-chip microcontroller (9) judges that temperature and humidity reaches default second threshold in electric power channel,
Alarm signal is sent to remote monitoring center computer (11) and/or remote by terminal network and NB-IoT core network (6)
Journey mobile monitor end (12).
3. a kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology according to claim 1, feature
It is that the sensor (14) are combustible gas sensor (21) and/or toxic gas sensor (22), the intelligence executes machine
Structure (10) is Intelligent ventilating apparatus (19), and combustible gas sensor (21) and/or toxic gas sensor (22) are set to described
For monitoring the gas concentration of fuel gas and/or toxic gas inside electric power channel, single-chip microcontroller (9) judges the electric power ditch
When gas concentration reaches preset first threshold value in road, pass through the terminal network of the base station NB-IoT (4) and NB-IoT terminal (5) composition
Observing and controlling information is sent to Intelligent ventilating apparatus (19), start Intelligent ventilating apparatus (19) and power channel environment is improved,
It stops working when gas concentration is lower than first threshold in electric power channel, otherwise, single-chip microcontroller (9) judges gas in electric power channel
When concentration reaches default second threshold, alarm signal is sent to by long-range prison by terminal network and NB-IoT core network (6)
It controls central computer (11) and/or telemedicine education end (12).
4. a kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology according to claim 1, feature
It is that the temperature sensor (16) are DS1820 temperature sensor (24), the single-chip microcontroller (9) of connection is AT89C52 single-chip microcontroller
(25), AT89C52 single-chip microcontroller (25) is connected with NB-IoT node module (4) by RS485 bus.
5. a kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology according to claim 1, feature
It is that the temperature sensor (15) are GSDTS-04-10 temperature sensor (26).
6. a kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology according to claim 1, feature
It is that the NB-IoT terminal (5) is that remote BC28 (29) are moved in Shanghai.
7. a kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology according to claim 1, feature
It is that the remote monitoring center computer (11) and telemedicine education end (12) include that man machine operation interface intelligently executes
The virtual control panel (30) of mechanism, for remotely controlling intelligent Actuator (10).
8. a kind of electric power channel ambient intelligence monitoring system based on NB-IoT technology according to claim 1, feature
It is that the three-phase imbalance regulating device (8) includes load-side three-phase imbalance regulating device (31) and/or source side three
Mutually uneven regulating device (32), the load-side three-phase imbalance regulating device (31) includes commutation module (33), monolithic
Machine module (9), signal detection module (34) and NB-IoT terminal (5), signal detection module (34) input are connected to three-phase wire,
Signal detection module (34) output is connected with one-chip computer module (9), and one-chip computer module (9) connects NB-IoT terminal by bus
(5), and it is connected to NB-IoT network, the output of one-chip computer module (9) is connected with the control loop of commutation module (33), commutation
The input side of module (33) major loop and A, B, C threephase cable of distribution line connect, described commutation module (33) major loop
Input side set and be connected to output there are three static contact and a moving contact, moving contact, the power supply phase of load is connected to as L line
On line connecting terminal, with N phase line be jointly single-phase load power supply, three static contacts respectively with A, B, C three-phase electricity of distribution line
Cable connection, moving contact can need to switch between three static contacts according to phase modulation, realize the L line of single-phase load in A, B, C
Switched between threephase cable, the source three-phase imbalance regulating device (32) by switch motion module I GBT (35),
Reactor and capacitor group (36), one-chip computer module (9), NB-IoT terminal (5) are constituted, and switch motion module I GBT (35) passes through
Conducting wire and breaker are parallel on the threephase cable of source side power grid, and the output of switch motion module I GBT (35) is connected to reactance
Device and capacitor group (36), one-chip computer module (9) are connect by conducting wire with switch motion module I GBT (35), reactor and capacitor
It is provided with multiple groups in device group (36) group and compensates grade, switching control is realized that one-chip computer module (9) is logical by one-chip computer module (9)
Bus connection NB-IoT terminal (5) is crossed, and is connected to NB-IoT network.
9. a kind of electric power channel ambient intelligence prison based on NB-IoT technology as claimed in any of claims 2 to 3
Control system, it is characterised in that the Intelligent ventilating apparatus (19) includes paddle motor (27), A.C. contactor (28).
10. a kind of multi-data fusion three-phase imbalance adjustment control method for above-mentioned intelligent monitor system, by detection
Three-phase current signal and the temperature signal of threephase cable carry out fusion as three-phase imbalance and adjust control signal, including it is following
Implementation steps:
Step 1: signal detection module detects load-side three-phase current signal I respectivelya, Ib, Ic；
Step 2: cable monitoring running state module detects the temperature signal T of threephase cable respectivelya, Tb, Tc；
Step 3: setting two-stage threephase load current unbalance factor threshold value δil, δth, wherein δilFor current unbalance factor lower limit threshold
Value, δihFor current unbalance factor upper limit threshold, threephase cable temperature degree of unbalancedness threshold value δtl, δth, wherein δtlFor threephase cable
Temperature degree of unbalancedness lower threshold, δthFor the temperature degree of unbalancedness upper limit threshold of threephase cable；
Step 4: calculating separately threephase load current unbalance factor δiWith threephase load temperature degree of unbalancedness δt, in which:
Step 5: if δl≤δil, and δt≤δtl, 10 are thened follow the steps, if δi≥δihAnd/or δt≥δthThen follow the steps 6,
If δil< δl< δih, and δt≤δtl7 are thened follow the steps, if δtl< δt< δth, and δt≤δil8 are thened follow the steps, if δil
< δt< δih, and δtl< δi< δthThen follow the steps 9；
Step 6: δi≥δihAnd/or δt≥δth, then optimization is called to change by remote monitoring center computer and telemedicine education end
The optimisation strategy of phase determines that commutation instructs and sends commutation instruction to different load-side regulator control systems, controls moving contact movement
Switch its phase sequence of powering, executes step 1 again after having implemented load-side regulator control system commutation operation；
Step 7: δil< δi< δih, and δt≤δtl, with δiTo adjust foundation, the power factor of the source side is calculated, and according to
Power factor, judgement are inductive reactive power or capacitive reactive power, capacitive current compensation are then carried out if it is inductive reactive power, if described
Reactive power characteristic is that capacitive reactive power then carries out inductance current compensation, executes step 1 again after having implemented adjustment；
Step 8: δtl< δt< δth, and δi≤δil, with δtTo adjust foundation, the power factor of the source side is calculated, and according to
Power factor, judgement are inductive reactive power or capacitive reactive power, capacitive current compensation are then carried out if it is inductive reactive power, if described
Reactive power characteristic is that capacitive reactive power then carries out inductance current compensation, executes step 1 again after having implemented adjustment；
Step 9: δil< δi< δih, and δil< δt< δth, merge δiAnd δtFor δit, then
With δitFor adjust foundation, calculate the power factor of the source side, and according to power factor, judgement be inductive reactive power or
Capacitive reactive power then carries out capacitive current compensation if it is inductive reactive power, if the reactive power characteristic be capacitive reactive power if into
The compensation of row inductance current, executes step 1 after having implemented adjustment again；
Step 10: being sampled next time according to the sampling period of setting, execute step 1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024248A (en) * | 2019-12-30 | 2020-04-17 | 戴天智能科技（上海）有限公司 | Data acquisition and temperature measurement sending terminal with edge computing capability |
| CN118349058A (en) * | 2024-04-09 | 2024-07-16 | 三峡高科信息技术有限责任公司 | NB-IoT based environmental regulation and control system and method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024248A (en) * | 2019-12-30 | 2020-04-17 | 戴天智能科技（上海）有限公司 | Data acquisition and temperature measurement sending terminal with edge computing capability |
| CN118349058A (en) * | 2024-04-09 | 2024-07-16 | 三峡高科信息技术有限责任公司 | NB-IoT based environmental regulation and control system and method |
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