CN109525044A - Small power station's active reactive control device based on Internet of Things chip wireless communication module - Google Patents
Small power station's active reactive control device based on Internet of Things chip wireless communication module Download PDFInfo
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- CN109525044A CN109525044A CN201910064708.6A CN201910064708A CN109525044A CN 109525044 A CN109525044 A CN 109525044A CN 201910064708 A CN201910064708 A CN 201910064708A CN 109525044 A CN109525044 A CN 109525044A
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- 238000004891 communication Methods 0.000 title claims abstract description 104
- 238000009826 distribution Methods 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 6
- 230000005284 excitation Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- H02J13/0075—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Mobile Radio Communication Systems (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses small power station active reactive control device of the kind based on Internet of Things chip wireless communication module, it includes: small power station's active reactive control device, it is characterised in that: switching value, which is opened, to be outputed module and Analog input mModule into module, switching value and connect respectively with small power station active reactive control device conducting wire；Small power station's active reactive control device is connect with the communication unit conducting wire based on built-in e-SIM card Internet of Things chip wireless communication module；Solves small power station's active reactive control system, using the communication mode of 4G or GPRS wireless public network transmitted data on network, there are power grids to be unable to monitor the information such as its operating status and load, the problems such as also can not quickly be controlled small power station；Using 4G or GPRS wireless public network transmitted data on network, that there are mobile model entity SIM cards is stolen, supervisory efficiency is low, small product size is big, the communication reliability of wireless public network transmitted data on network, the problems such as stability is poor.
Description
Technical field
The invention belongs to active distribution network automatic control technology fields, more particularly to one kind to be based on Internet of Things chip channel radio
Believe small power station's active reactive control device of module.
Background technique
Small power station as a kind of cleanliness without any pollution, green energy resource renewable and that there is good ecology and social benefit,
Importance becomes increasingly conspicuous.The development of small power station can drive local socio-economic development, alleviate power distribution network electricity consumption not foot phenomenon,
Improve production and living conditions, while energy-saving and emission-reduction can also be promoted, promotes the construction of green network.China's development of small scale hydropower station has reached
Considerable scale, especially after the requirement that country proposes energy-saving and emission-reduction, green scientific development, small power station has obtained more rapid hair
Exhibition.
But the access power grid of a large amount of small power stations makes the trend of route in power grid no longer be original unidirectional flowing,
Structure and operation to whole region network system also have a huge impact.With the access of small power station, power grid in power distribution network
As each season rainfall is different, small power station's generated energy is different and fluctuates, this will affect the electric energy of user side for active and reactive distribution
Quality also brings huge challenge to major network voltage, frequency adjusting.
The voltage problem major embodiment of small power station's power distribution network are as follows: the small water at dry season and higher load, in power distribution network
Electric generated energy cannot be supplied to local load completely, therefore major network needs to convey a part of electric power to power distribution network, and electric energy is from major network
It transmits and consumes to power distribution network, power distribution network is gradually decreased along line voltage, this may make line end brownout；Wet season and use
When electric load is lower, small power station's generated energy is higher, some electric energy is transported to major network from small power station, is being rich in small power station
In power distribution network, it is possible to the voltage along power distribution network can be made to increase, or even cause terminal voltage out-of-limit.Meanwhile small power station's unit
Network re-active power caused by the unpredictability of power output, uncontrollability fluctuates, and asks so as to cause the fluctuation of mains frequency
Topic.
Since most distributed water current potentials are in remote mountain area, the power communication means of mainstream are difficult to cover at present, at present
In addition to part small hydropower station can realize communication function by dispatch data net and dispatching terminal, still 4G or GPRS wireless public network mostly
The communication mode of transmitted data on network, there are mobile model entity SIM cards to be stolen, supervisory efficiency is low, small product size is big, wireless public network
The communication reliability of transmitted data on network, the problems such as stability is poor.And since small hydropower station is arranged in power grid weakness mostly
Region or remote districts, running environment condition is poor, can not use the communication party of 4G or GPRS wireless public network transmitted data on network
The problems such as formula, there are power grids to be unable to monitor the information such as its operating status and load, also can not quickly be controlled small power station.
Summary of the invention:
The technical problem to be solved by the present invention is providing a kind of active nothing of small power station based on Internet of Things chip wireless communication module
Function control device, using the communication mode of 4G or GPRS wireless public network transmitted data on network, there are power grids to be unable to monitor its fortune
The information such as row state and load, the problems such as also can not quickly be controlled small power station；Using 4G or GPRS wireless public network network
Data are transmitted, that there are mobile model entity SIM cards is stolen, supervisory efficiency is low, small product size is big, wireless public network transmitted data on network
The problems such as communication reliability, poor stability.
Technical solution of the present invention:
A kind of small power station's active reactive control device based on Internet of Things chip wireless communication module, it includes: that small power station is active
Idle control device, switching value open into module, switching value output module and Analog input mModule respectively with the active nothing of small power station
The connection of function control device conducting wire；Small power station's active reactive control device is wirelessly communicated with based on built-in e-SIM card Internet of Things chip
The communication unit conducting wire of module connects.
The communication unit based on built-in e-SIM card Internet of Things chip wireless communication module includes that communication device core is micro-
Controller, communication device Core Microcontroller are connect with user's operation panel, storage unit and data acquisition module conducting wire respectively；
Communication device Core Microcontroller is connect with the wireless communication module conducting wire of built-in e-SIM card Internet of Things chip.
Communication device Core Microcontroller is connect with GPS wireless module conducting wire.
It further includes main electricity module and standby power supply module, the main electricity module and standby power supply module
It is connect respectively with communication device power detecting and switching module conducting wire；Communication device power detecting and switching module and communication device
The connection of Core Microcontroller conducting wire.
Data acquisition module is connect with external communication interface module conducting wire.
GPS wireless module is configured with hardware clock synchronization interface.
The wireless communication module of built-in e-SIM card Internet of Things chip and intelligent low-pressure comprehensive distribution box management system main website without
Line connection.
The invention has the advantages that:
The present invention strong, strong interference immunity, volume using the stability based on built-in e-SIM card Internet of Things chip wireless communication module
It is small, low energy consumption, accurate positioning, can real-time monitoring, e-SIM card Internet of Things chip inner embedded integrated design etc. advantageous features, with
The communication mode using 4G or GPRS wireless public network transmitted data on network is solved, there are the communications of wireless public network transmitted data on network
The problems such as reliability, poor stability.It, can be by being based on Internet of Things and in some power grid weakness zones of small hydropower station online
The Internet of Things chip wireless communication module of small power station's active reactive control device of steel wire rack piece wireless communication module, establishment are exclusively used in
Manage strong flexibility, high stability, the Internet of Things private wire network of high reliability of intelligent low-pressure comprehensive distribution box, it is ensured that can
Realize that the acquisition, monitoring and active reactive of small hydropower station real time data automatically control using Internet of Things private network；Solves small power station
Active reactive control system, using the communication mode of 4G or GPRS wireless public network transmitted data on network, there are power grids to be unable to monitor
To the information such as its operating status and load, the problems such as also can not quickly be controlled small power station；It is wirelessly public using 4G or GPRS
Net transmitted data on network, there are mobile model entity SIM cards to be stolen, supervisory efficiency is low, small product size is big, wireless public network network transmission
The communication reliability of data, the problems such as stability is poor.
Figure of description:
Fig. 1 is schematic structural view of the invention；
Fig. 2 is that the present invention is based on the communication unit structural schematic diagrams of built-in e-SIM card Internet of Things chip wireless communication module.
Specific embodiment:
The present invention includes small power station's active reactive control device, based on built-in e-SIM card Internet of Things chip wireless communication module
Communication unit, switching value, which are opened, outputs module and auxiliary contact, Analog input mModule group into module and auxiliary contact, switching value
At small power station's active reactive control device is PLC controller.
Small power station's active reactive control device is opened with switching value to be connected into module and auxiliary contact, opens for acquiring switching value
Enter signal, including machine unit speed regulating device fault-signal, permission AGC control signal, electrical hazard alarm signal, water dispenser accident and alert letter
Number, have halt command alarm signal.
Small power station's active reactive control device is connected with Analog input mModule, for acquiring small power station's generator generator terminal electricity
Ua, Ub, Uc are pressed, small power station generator generator terminal electric current Ia, Ib, Ic, small power station generator excitation voltage Uf, small power station's generator encourages
Magnetoelectricity stream If, small hydropower station high side bus voltage Ux, small hydropower station high-voltage side bus frequency F.
Small power station's active reactive control device outputs module with switching value and auxiliary contact is connected, for controlling small power station's machine
Group speedup is slowed down, and small power station's unit increases excitation, excitation reduction, and the booting of small power station's unit enables, shuts down order.
Small power station's active reactive control device and the communication unit based on built-in e-SIM card Internet of Things chip wireless communication module
RS232 or RS485 data line can be used between member to be connected.For by collected analog quantity (including small power station's generator generator terminal
Voltage Ua, Ub, Uc, small power station generator generator terminal electric current Ia, Ib, Ic, small power station generator excitation voltage Uf, small power station's generator
Exciting current If, small hydropower station high side bus voltage Ux, small hydropower station high-voltage side bus frequency F) and switching value open into signal
(including machine unit speed regulating device fault-signal, permission AGC control signal, electrical hazard alarm signal, water dispenser accident alarm signal, have
Halt command alarm signal) be sent to by the communication unit based on built-in e-SIM card Internet of Things chip wireless communication module it is small
Water power active reactive control system main website is judged whether to issue control instruction to small power station's unit.Meanwhile it being also used for receiving
The instruction of active reactive control system main website, small power station, instruction include control small power station's unit speedup, slow down, small power station's unit
Increase excitation, excitation reduction, the booting of small power station's unit enables, shuts down order, controlling small power station's unit.
Communication unit based on built-in e-SIM card Internet of Things chip wireless communication module mainly includes GPS wireless module, outside
Portion's communication interface modules, main collection, diversity antenna module, data acquisition module, communication device Core Microcontroller, communication device electricity
Source detection and switching module, main power supply module, standby power supply module, storage unit, the nothing of built-in e-SIM card Internet of Things chip
Line communication module, user's operation panel.
GPS wireless module is connected with communication device Core Microcontroller, for receiving small power station's active reactive control system
The GPS system clock synchronization information of main website, realizes unified network clock synchronization.Meanwhile the accuracy to guarantee clock, GPS wireless module
Equipped with unified hardware clock synchronization interface, it is subjected to difference pulse per second (PPS), sectors punching, IRIG-B clock synchronization etc..
External communication interface module is connected with small power station's active reactive control device, for realizing built-in e-SIM card is based on
The external communication interface module of the communication unit of Internet of Things chip wireless communication module and small power station's active reactive control device it
Between carry out data information interaction.Meanwhile external communication interface module is connected with data acquisition module, is used for the active nothing of small power station
The data information transfer of function control device is to data acquisition module.
It is main collection, diversity antenna module be connected with the wireless communication module of built-in e-SIM card Internet of Things chip, for transmission with
Receive the radiofrequency signal of the wireless communication module of built-in e-SIM card Internet of Things chip.
Data acquisition module is connected with communication device Core Microcontroller, logical for giving collected data information transfer
T unit Core Microcontroller carries out data processing.
Communication device Core Microcontroller is using the high-performance 32-bit technical grade network processes for configuring high-capacity and high-speed memory
Device, with data acquisition module, communication device power detecting and switching module, storage unit, built-in e-SIM card Internet of Things chip
Wireless communication module, user's operation panel are connected, and for handling and checking the data information of transmission and receiving, can satisfy small water
Requirement of the electric active reactive control system to data processing speed.
Communication device power detecting and switching module, with main power supply module, standby power supply module is connected.For detecting master
Whether power module and standby power supply module have that there are DC power supply 5V/24V.When main power supply module power loss, can not export
When DC power supply, DC power supply is automatically switched to be powered by standby power supply module by communication device power detecting and switching module.When
After main power supply module recovery power supply, communication device power detecting and switching module automatically switch DC power supply by main power supply
Module for power supply.
Wherein, main power supply module, for providing the communication based on built-in e-SIM card Internet of Things chip wireless communication module
The main power supply of unit, by will be based on the friendship in small power station's active reactive control device of Internet of Things chip wireless communication module
Galvanic electricity source 220V/380V is converted into DC power supply 5V/24V(and is determined according to user demand), receiving communication device power supply
After detection and switching module instruction, communication device Core Microcontroller is powered.
Standby power supply module, for providing the communication unit based on built-in e-SIM card Internet of Things chip wireless communication module
Backup power source, provide DC power supply 5V/24V(by configuring small-sized super capacitor and determined according to user demand), receiving
After communication device power detecting and switching module instruction, communication device Core Microcontroller is powered.
Storage unit uses technical grade storage chip, and reliability with higher, shock resistance, anti-interference are filled with communicate
It sets Core Microcontroller to be connected, for storing the data information of idle compensating control transmission.
The wireless communication module of built-in e-SIM card Internet of Things chip and main collection, diversity antenna module, communication device core are micro-
Controller is connected, and sends communication device core micro-control to for realizing the data information for receiving main collection, the acquisition of diversity antenna module
Device processed, and need the data information transmitted to be sent to by main collection, diversity antenna module communication device Core Microcontroller
Active reactive control system main website, small power station.
User's operation panel is connected with communication device Core Microcontroller, reads and communicates from communication device Core Microcontroller
Unit operating parameter, live data values, communication unit configuration parameter, for realizing having access to and checking communication unit letter on the spot
Breath, while communication unit configuration parameter can be modified in user's operation panel, and be transmitted to communication device core microcontroller
Device is applied.
Claims (7)
1. a kind of small power station's active reactive control device based on Internet of Things chip wireless communication module, it includes: that small power station has
Function is idle control device, it is characterised in that: switching value open into module, switching value output module and Analog input mModule respectively with
The connection of small power station's active reactive control device conducting wire；Small power station's active reactive control device be based on built-in e-SIM card Internet of Things
The communication unit conducting wire of chip wireless communication module connects.
2. a kind of small power station's active reactive based on Internet of Things chip wireless communication module according to claim 1 controls dress
It sets it is characterized by: the communication unit based on built-in e-SIM card Internet of Things chip wireless communication module includes communication device
Core Microcontroller, communication device Core Microcontroller are led with user's operation panel, storage unit and data acquisition module respectively
Line connection；Communication device Core Microcontroller is connect with the wireless communication module conducting wire of built-in e-SIM card Internet of Things chip.
3. a kind of low-voltage comprehensive distribution box based on Internet of Things chip wireless communication module according to claim 2 communicates dress
It sets, it is characterised in that: communication device Core Microcontroller is connect with GPS wireless module conducting wire.
4. a kind of low-voltage comprehensive distribution box based on Internet of Things chip wireless communication module according to claim 2 communicates dress
It sets, it is characterised in that: it further includes main electricity module and standby power supply module, the main electricity module and standby electricity
Source module is connect with communication device power detecting and switching module conducting wire respectively；Communication device power detecting and switching module and logical
The connection of T unit Core Microcontroller conducting wire.
5. a kind of low-voltage comprehensive distribution box based on Internet of Things chip wireless communication module according to claim 2 communicates dress
It sets, it is characterised in that: data acquisition module is connect with external communication interface module conducting wire.
6. a kind of low-voltage comprehensive distribution box based on Internet of Things chip wireless communication module according to claim 3 communicates dress
It sets, it is characterised in that: GPS wireless module is configured with hardware clock synchronization interface.
7. a kind of low-voltage comprehensive distribution box based on Internet of Things chip wireless communication module according to claim 2 communicates dress
It sets, it is characterised in that: the wireless communication module and intelligent low-pressure comprehensive distribution box management system of built-in e-SIM card Internet of Things chip
Main website is wirelessly connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064708.6A CN109525044A (en) | 2019-01-23 | 2019-01-23 | Small power station's active reactive control device based on Internet of Things chip wireless communication module |
Applications Claiming Priority (1)
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| CN201910064708.6A CN109525044A (en) | 2019-01-23 | 2019-01-23 | Small power station's active reactive control device based on Internet of Things chip wireless communication module |
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| CN109525044A true CN109525044A (en) | 2019-03-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103339974A (en) * | 2011-01-31 | 2013-10-02 | 诺基亚公司 | Provisioning of subscriber identity module |
| CN104124707A (en) * | 2014-07-23 | 2014-10-29 | 北京四方继保自动化股份有限公司 | Hydropower station power quick adjustment system and implementation method based on intensive small hydropower station groups |
| CN204905864U (en) * | 2015-09-07 | 2015-12-23 | 贵州电网有限责任公司 | Be applied to power station control and management unit of initiatively joining in marriage grid system |
| CN206658099U (en) * | 2016-12-26 | 2017-11-21 | 贵州电网有限责任公司电力调度控制中心 | Small power station's realtime power monitoring and transmitting device |
| CN108600335A (en) * | 2018-03-30 | 2018-09-28 | 长沙汉拓信息技术有限公司 | A kind of Internet of Things control module and purifier |
| CN209593102U (en) * | 2019-01-23 | 2019-11-05 | 贵州电网有限责任公司 | Small power station's active reactive control device based on Internet of Things chip wireless communication module |
-
2019
- 2019-01-23 CN CN201910064708.6A patent/CN109525044A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103339974A (en) * | 2011-01-31 | 2013-10-02 | 诺基亚公司 | Provisioning of subscriber identity module |
| CN104124707A (en) * | 2014-07-23 | 2014-10-29 | 北京四方继保自动化股份有限公司 | Hydropower station power quick adjustment system and implementation method based on intensive small hydropower station groups |
| CN204905864U (en) * | 2015-09-07 | 2015-12-23 | 贵州电网有限责任公司 | Be applied to power station control and management unit of initiatively joining in marriage grid system |
| CN206658099U (en) * | 2016-12-26 | 2017-11-21 | 贵州电网有限责任公司电力调度控制中心 | Small power station's realtime power monitoring and transmitting device |
| CN108600335A (en) * | 2018-03-30 | 2018-09-28 | 长沙汉拓信息技术有限公司 | A kind of Internet of Things control module and purifier |
| CN209593102U (en) * | 2019-01-23 | 2019-11-05 | 贵州电网有限责任公司 | Small power station's active reactive control device based on Internet of Things chip wireless communication module |
Non-Patent Citations (1)
| Title |
|---|
| 张海龙 等: "新型模组化用电信息采集终端设计与应用", 《电力信息与通信技术》, vol. 16, no. 2, pages 2 * |
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