CN106026095A - System and method for realizing terminal compensation and harmonic suppression by using dynamic capacitor - Google Patents
System and method for realizing terminal compensation and harmonic suppression by using dynamic capacitor Download PDFInfo
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- CN106026095A CN106026095A CN201610310641.6A CN201610310641A CN106026095A CN 106026095 A CN106026095 A CN 106026095A CN 201610310641 A CN201610310641 A CN 201610310641A CN 106026095 A CN106026095 A CN 106026095A
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- 238000005516 engineering process Methods 0.000 claims description 8
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
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- H02J13/0013—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1864—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein the stepless control of reactive power is obtained by at least one reactive element connected in series with a semiconductor switch
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
-
- 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
- Y04S40/128—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 involving the use of Internet protocol
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- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a system and method for realizing terminal compensation and harmonic suppression by using a dynamic capacitor in a power grid. Harmonic detection and suppression are carried out on a voltage transformer and a current transformer in a terminal; analog signals of all phases of voltages and currents are collected from electrical equipment; a management center carries out processing and calculation on the analog signals to convert the analog signals into digital signals and then carries out separation of all subharmonic component data in a grid, and transmits the voltages, currents, and harmonic data to an internet-of-things gateway and a server center by the internet of things to carry out data interaction; the management center controls a harmonic suppression module based on analysis result to suppress odd harmonics from the third times to the seventeenth times; and an intelligent dynamic capacitor can carry out reactive compensation automatically according to a reactive power change of electrical equipment. According to the system for realizing terminal compensation and harmonic suppression by using a dynamic capacitor, grid harmonic detection and suppression as well as reactive power compensation in a factory distribution system are realized based on the internet of things in a certain electrical area, and the great economic benefits and research value can be created.
Description
Technical field
The present invention relates to the system and method utilizing dynamic capacity to realize terminal compensation and harmonics restraint in electrical network, be one
Plant Harmonic Detection based on Internet of Things and suppression system, be mainly used in electrical network the harmonics restraint local to electrical equipment
With reactive-load compensation.
Background technology
Along with the development of science and technology, commercial production levels and the raising of living standards of the people, non-linear electrical equipment exists
Electrical network uses in a large number, causes the proportion that the harmonic component of electrical network accounts for increasing.It not only increases the power supply of electrical network and damages
Consumption, and disturb the protection device of electrical network and the properly functioning of automation equipment, cause malfunction and the tripping of these devices, directly
Threaten electric power netting safe running.Harmonic pollution electrical network, even if in the case of causing three-phase load in a basic balance, still suffers from bigger neutrality
Line current, make the power supply end quality of power supply of power distribution network decline, electrical equipment heating increase, grid line loss increase, user's power transformation
The transformator heating stood is serious, shortens service life of equipment.Therefore, for the power quality of three-phase balancing load, due to symmetry
Relation even-order harmonic is eliminated, and only odd harmonic exists, the odd harmonic to 3~17 times that non-linear electrical equipment produces
Must administer, therefore only 3~17 odd harmonics of suppression, make harmonic component be less than national standard.
The method of present stage harmonic carcellation has:
1, rectifier transformer is set up.2, Transformer Winding uses Y/ △ or △/Y connection.3, the rectification of High Power Factor is selected
Device.
These methods are all to concentrate the harmonic wave eliminated in electrical network, and equipment is heavier, safeguard inconvenience, and produce harmonic wave
The elimination effect of the Radix Rehmanniae is inconspicuous.At root, do not solve harmonic problem.
Summary of the invention
The purpose of the present invention is exactly to solve Harmonic Detection and suppression problem at terminal electrical equipment, provides for this
A kind of system and method utilizing dynamic capacity to realize terminal compensation and harmonics restraint.Collection harmonic detecting, harmonics restraint are one
Body, and by Internet of Things, the voltage data of collection, current signal and harmonic data are sent on Internet Server, can
Carry out data analysis on the server, determine harmonic wave equipment occurred frequently and generation time and operation of power networks situation at that time, and
The odd harmonic suppression controlling harmonic detecting and suppress terminal to carry out 3~17 times, harmonic detecting can also be automatic with suppression terminal
Carry out harmonics restraint, while suppression harmonic wave, also carry out reactive-load compensation.
Intelligent vibrating capacitor can be according to the power factor of electrical equipment, and auto linear regulation monomer capacitance is real
The technology of existing auto-reactive compensation.Harmonic suppression technique, adjusts inducer and intelligence automatically according to the size of harmonic wave idle component
The parameter of type vibrating capacitor is mated, and produces the electric current contrary with harmonic current components vector, thus reaches to suppress this strange
The purpose of subharmonic.If the harmonic wave having different odd produces simultaneously, then the corresponding intelligent vibrating capacitor installing equal parts, real
Now each odd harmonic of 3~17 times is suppressed.Harmonic wave suppresses to use separately or concurrently to different orders 3~17 times strange
Subharmonic detects and suppresses, and relies on intelligent vibrating capacitor to carry out reactive power without compensation differential, smooth.
The present invention for achieving the above object, by the following technical solutions: utilize dynamic capacity to realize terminal compensation harmonious
The system of ripple suppression, it is characterised in that: include that harmonic detecting is with suppression terminal, things-internet gateway, server-centric and client eventually
End, is added multiple stage harmonic detecting and suppression terminal in electrical network, is joined with server-centric by neighbouring things-internet gateway respectively
System, and use technology of Internet of things to gather the big data of electrical network on internet platform, calculate the preferred harmonic suppression parameter of system, control
Making each harmonics restraint terminal, client is interacted with server-centric by web browser, when terminal unit is reported to the police,
Server-centric can be alarm information pushing to client;
Described harmonic detecting includes with suppression terminal: voltage transformer, current transformer, signaling conversion circuit, administrative center, thing
Networking signals input/output module, intelligent dynamic capacity and harmonic rejection module, described administrative center changes with signal respectively
Circuit, Internet of Things signal input/output module, intelligent dynamic capacity and harmonic rejection module connect, described voltage transformer,
Current transformer is connected with signaling conversion circuit respectively;
Harmonic detecting is mainly responsible for voltage signal and the collection of current signal with suppression terminal and uploads, server complete wink
Time reactive power current component calculate so that analyze each harmonic, by gather voltage and current data and the harmonic wave of analysis
Data pass to things-internet gateway, carry out the odd harmonic suppression of 3~17 times voluntarily according to analysis result, it is possible to according in server
The order that the heart sends carries out harmonics restraint optimal control;
Described things-internet gateway includes: core processor, Internet of Things signal input/output module and internet interface, described core
Processor is connected with Internet of Things signal input/output module, internet interface respectively;
Things-internet gateway is mainly responsible for carrying out data communication with harmonic detecting with suppression terminal and server-centric, plays harmonic wave inspection
Survey and suppression terminal and the function served as bridge of server centre data exchange;
Server-centric includes: data storage server, user's application server, the webserver and management terminal, data are deposited
Storage server mainly stores and receives the electric network data that sent of things-internet gateway and the data result of customer analysis and user sets
Putting, the electric network data sent according to terminal electrical equipment is analyzed and controls frequency analysis entering mains by harmonics with suppression emphasis
Row suppression.
Utilize the method that dynamic capacity realizes terminal compensation and harmonics restraint, it is characterised in that: step is as follows, harmonic detecting
Voltage transformer summation current transformer with suppression terminal, gathers and quality of power supply phase respectively from power network line electrical equipment
Close, each phase voltage and the analogue signal of current signal, be converted into the discernible simulation of administrative center by signaling conversion circuit
Signal, the analog signal processing of the voltage signal received and current signal is calculated by administrative center again, by analog-signal transitions
Become digital signal and be analyzed, analyzing each harmonic component data in electrical network, by Internet of Things signal input/output module
Voltage, electric current and harmonic data are transferred to things-internet gateway, and with server-centric data interaction, administrative center is according to dividing simultaneously
The odd harmonic of 3~17 times is suppressed by analysis output control harmonic rejection module, the instruction that also can send according to administrative center
Odd harmonic is carried out harmonics restraint, when harmonic wave suppresses scope beyond equipment, and administrative center can be to server alert
So that related personnel checks, the most intelligent dynamic capacity can carry out idle according to the reactive power change of electrical equipment automatically
Compensate;
Server-centric is substantially carried out data storage, data analysis, draws form, reports to the police and produce various data sheet, and leads to
Cross analysis harmonic data and operation of power networks state, propose and assign the harmonics restraint parameter of optimization, provide what regional power grid ran
Optimisation strategy, thus effectively promote power grid quality and operational energy efficiency, improve the safety of load equipment, and hand over user
Mutually, the content of user's inquiry being passed to client terminal by network, client terminal is that the electronics of any integrated web browser sets
Standby, mainly carry out data interaction with server-centric, including the information of checking, add information, delete information, revise information.
The present invention has the advantage that compared with existing product technology the harmonic analysis method that product uses is the instantaneous of advanced person
Reactive power electric current is theoretical, and no matter in electrical network, whether voltage has distortion all can analyze the harmonic wave of electrical network accurately.
Harmonic detecting is intelligent vibrating capacitor with the core parts of suppression terminal, and it is connected to by things-internet gateway
With server-centric communication on the Internet, the suppression that harmonic detecting can be flexible, intelligent with suppression terminal is from grid side or negative
The voltage of lotus side generation, current distortion, carry out real-time, dynamic, intelligent, the smooth idle benefit of continuous print to terminal electrical equipment
Repay.
Utilize the primary operating parameter of sensor acquisition electric power networks, the transient state reactive power of system-computed collection and harmonic wave
Electric current, carries out data analysis to mains by harmonics, and server-centric assigns instruction to harmonic detecting with suppression terminal, adjusts its work
Parameter and then optimize the harmonics restraint of system and reactive power compensation planning.Server-centric is responsible for data and is stored, shows, reports to the police and divide
Analysis function, and by analyzing harmonic data and operation of power networks state, propose and assign the harmonics restraint parameter of optimization, provide region
The optimisation strategy of operation of power networks, thus effectively promote power grid quality and operational energy efficiency, improve the safety of load equipment.
It is also an advantage of the present invention that the method using electrical equipment terminal to measure, more can measure electricity consumption accurately and set
The standby harmonic data produced, thus preferably carry out local harmonics restraint and process.And end product volume is little easy for installation, just
In maintenance.
It is also an advantage of the present invention that all of frequency analysis and compensate mode and the Internet of Things net of terminal employing Internet of Things
Pass carries out networking.So considerably increase the quantity of terminal node in whole network, the networking of single terminal can do arbitrarily adjustment,
Change.The smaller and more exquisite power input that can arbitrarily be installed in parallel any one electrical equipment of equipment.
In addition it is also an advantage of the present invention that server-centric uses B/S frame structure, as long as there being web browser merit
Can electronic product all can interact with server-centric, user can not by special equipment just can at any time,
Place is set up with server and is communicated, and carries out data query, data analysis and the duty of control terminal unit.
In a word, if in certain electricity consumption region, dynamic capacity is utilized to realize the system of terminal compensation and harmonics restraint, based on
Internet of Things realizes in factory's distribution system Harmonic Detection and suppression and reactive power compensation, can produce the highest economy
Benefit and researching value.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of the present invention;
Fig. 2 is that harmonic detecting is connected block diagram with the circuit of suppression terminal;
Fig. 3 is that the circuit of things-internet gateway connects block diagram;
Fig. 4 is the frame diagram of server-centric management software.
Detailed description of the invention
With example, this patent is further illustrated below in conjunction with the accompanying drawings.
As shown in Fig. 1, utilize dynamic capacity to realize the system of terminal compensation and harmonics restraint, including harmonic detecting with press down
Terminal processed, things-internet gateway, server-centric and client terminal, add multiple stage harmonic detecting and suppression terminal in electrical network, point
Do not contacted with server-centric by neighbouring things-internet gateway, and use technology of Internet of things to gather electrical network on internet platform
Big data, calculate the preferred harmonic suppression parameter of system, control each harmonics restraint terminal, client by web browser with
Server-centric interacts, and when terminal unit is reported to the police, server-centric can be alarm information pushing to client.
User can install harmonic detecting and suppression terminal in any one electrical equipment end of incoming cables, and uses many in networking
Individual things-internet gateway, uses technology of Internet of things to carry out being grouped networking and connects, and things-internet gateway is transferred to data by the Internet
Server-centric.
Harmonic detecting and suppression terminal use distributed arrangement, and every harmonic detecting is only responsible for corresponding with suppression terminal
Electrical equipment, follow the tracks of the power quality of equipment at any time.
As in figure 2 it is shown, harmonic detecting includes with suppression terminal: voltage transformer, current transformer, signaling conversion circuit,
Administrative center, Internet of Things signal input/output module, intelligent dynamic capacity and harmonic rejection module.
Administrative center respectively with signaling conversion circuit, Internet of Things signal input/output module, intelligent dynamic capacity and humorous
Ripple suppression module connects, and described voltage transformer, current transformer are connected with signaling conversion circuit respectively.
Harmonic detecting to suppression terminal mainly the analogue signal relevant with the quality of power supply collected from electrical equipment
Being converted into the discernible analogue signal of administrative center by signaling conversion circuit, the analogue signal received is turned by administrative center again
Become digital signal to be analyzed, after analyzing electrical network each harmonic component, carry out loopback.Control harmonic rejection module pair simultaneously
The odd harmonic of 3~17 times suppresses, and also according to the instruction that administrative center sends, odd harmonic can be carried out harmonics restraint.When
Harmonic wave suppresses scope beyond equipment, and administrative center can be to server alert so that related personnel checks, intelligence simultaneously
Type dynamic capacity can change according to the reactive power of electrical equipment and automatically carry out reactive-load compensation.
As it is shown on figure 3, things-internet gateway includes: core processor, Internet of Things signal input/output module and the Internet connect
Mouthful.
Core processor is connected with Internet of Things signal input/output module, internet interface respectively.
Core processor is responsible for processed material networking gateway data, and Internet of Things signal input/output module is responsible for and harmonic detecting
With suppression terminal communication, internet interface is by the Internet and server-centric communication, and internet interface includes wifi and RJ45
Two kinds of communication modes of network interface.
Things-internet gateway is mainly responsible for carrying out data communication with harmonic detecting with suppression terminal and server-centric, plays humorous
Ripple detection and suppression terminal and the function served as bridge of server centre data exchange.
Server-centric includes data storage server, user's application server, the webserver and management terminal.
Data storage server mainly stores and receives electric network data and the data of customer analysis that things-internet gateway is sent
Result and user setup, the electric network data sent according to terminal electrical equipment is analyzed and controls frequency analysis and suppression weight
Mains by harmonics is suppressed by point.
As shown in Fig. 4, server-centric management software block diagram includes: presentation layer 15, Business Logic 16, data cube computation
Layer 17 and data base 18 etc..
Presentation layer 15 major function is mutual with user, and releasing inquiry request and display Query Result, specifically refinement can for it
It is divided into 3 parts: user operation, interface display and back-stage management.The result returned according to Business Logic 16, carries out every curve
Drafting, such as cake chart, Columnar Section Drawing and the generation of various data sheet.And send with suppression terminal according to frequency analysis
Warning message make corresponding alarm indicator.
Business Logic 16 major function is to process user to ask, to datalink layer connection request data, to return to presentation layer and look into
Ask data.
Datalink layer connection 17 is mainly according to the request of Business Logic, according to conditional search data base, to service logic
Layer returns inquiry data.
Data base 18 mainly stores electric network data, customer analysis result and user setup.
Utilizing the method that dynamic capacity realizes terminal compensation and harmonics restraint, step is as follows:
At the power input of each electrical equipment, it is installed in parallel intelligent vibrating capacitor and harmonic detecting and suppression terminal,
Harmonic wave during electrical network is analyzed in detection in real time, carries out auto-reactive compensation and harmonics restraint in real time to electrical equipment.
Harmonic detecting and the voltage transformer summation current transformer in suppression terminal, respectively from power network line electrical equipment
The each phase voltage relevant to the quality of power supply collected and the analogue signal of current signal, be converted into pipe by signaling conversion circuit
The discernible analogue signal in reason center, administrative center is again by the analog signal processing meter of the voltage signal received and current signal
Calculate, analog-signal transitions become digital signal and is analyzed, analyzing each harmonic component data in electrical network, pass through Internet of Things
Voltage, electric current and harmonic data are transferred to things-internet gateway by signal input/output module, and the data interaction of server-centric,
The odd harmonic of 3~17 times is suppressed by administrative center according to analysis result control harmonic rejection module simultaneously, also can basis
The instruction that administrative center sends carries out harmonics restraint to subharmonic, when harmonic wave suppresses scope beyond equipment, and administrative center can be to clothes
Business device alert is so that related personnel checks, the most intelligent vibrating capacitor can be according to the idle merit of electrical equipment
Rate change carries out reactive-load compensation automatically.
Server-centric is substantially carried out data storage, data analysis, draws form, reports to the police and produce various data sheet,
And by analyzing harmonic data and operation of power networks state, propose and assign the harmonics restraint parameter of optimization, provide regional power grid fortune
The optimisation strategy of row, thus effectively promote power grid quality and operational energy efficiency, improve the safety of load equipment, and enter with user
Row is mutual, and the content of user's inquiry is passed to client terminal by network, and client terminal is the electronics of any integrated web browser
Equipment, mainly carries out data interaction with server-centric, including the information of checking, adds information, deletes information, revises information.
User can utilize Servers for data analysis to generate data sheet, by the analysis to terminal data, Yong Huke
To understand the relevant information such as electric terminal and harmonic wave producing cause.Can find out those device ends produce under what duty
Which type of harmonic wave interference raw, can accurately carry out harmonics restraint according to the result analyzed.Warning message according to terminal has pin
To property electrical equipment is processed.The trouble that the personnel of eliminating make regular check on, has filled up intelligent grid to local area network
The blank of power quality detection, for the Data Detection that the region offer terminal unit that device properties is complicated is real-time.
Claims (2)
1. utilize dynamic capacity to realize the system of terminal compensation and harmonics restraint, it is characterised in that: include harmonic detecting and suppression
Terminal, things-internet gateway, server-centric and client terminal, add multiple stage harmonic detecting and suppression terminal, respectively in electrical network
Contacted with server-centric by neighbouring things-internet gateway, and it is big to use technology of Internet of things to gather electrical network on internet platform
Data, calculate the preferred harmonic suppression parameter of system, control each harmonics restraint terminal, and client passes through web browser and clothes
Wu Qi center interacts, and when terminal unit is reported to the police, server-centric can be alarm information pushing to client;
Described harmonic detecting includes with suppression terminal: voltage transformer, current transformer, signaling conversion circuit, administrative center, thing
Networking signals input/output module, intelligent dynamic capacity and harmonic rejection module, described administrative center changes with signal respectively
Circuit, Internet of Things signal input/output module, intelligent dynamic capacity and harmonic rejection module connect, described voltage transformer,
Current transformer is connected with signaling conversion circuit respectively;
Harmonic detecting is mainly responsible for voltage signal and the collection of current signal with suppression terminal and uploads, server complete wink
Time reactive power current component calculate so that analyze each harmonic, by gather voltage and current data and the harmonic wave of analysis
Data pass to things-internet gateway, carry out the odd harmonic suppression of 3~17 times voluntarily according to analysis result, it is possible to according in server
The order that the heart sends carries out harmonics restraint optimal control;
Described things-internet gateway includes: core processor, Internet of Things signal input/output module and internet interface, described core
Processor is connected with Internet of Things signal input/output module, internet interface respectively;
Things-internet gateway is mainly responsible for carrying out data communication with harmonic detecting with suppression terminal and server-centric, plays harmonic wave inspection
Survey and suppression terminal and the function served as bridge of server centre data exchange;
Server-centric includes: data storage server, user's application server, the webserver and management terminal, data are deposited
Storage server mainly stores and receives the electric network data that sent of things-internet gateway and the data result of customer analysis and user sets
Putting, the electric network data sent according to terminal electrical equipment is analyzed and controls frequency analysis entering mains by harmonics with suppression emphasis
Row suppression.
2. use the method utilizing dynamic capacity to realize terminal compensation and harmonics restraint described in claim 1, it is characterised in that:
Step is as follows, and harmonic detecting and the voltage transformer summation current transformer in suppression terminal, respectively from power network line electrical equipment
Middle collection is relevant to the quality of power supply, each phase voltage and the analogue signal of current signal, is converted into pipe by signaling conversion circuit
The discernible analogue signal in reason center, administrative center is again by the analog signal processing meter of the voltage signal received and current signal
Calculate, analog-signal transitions become digital signal and is analyzed, analyzing each harmonic component data in electrical network, pass through Internet of Things
Voltage, electric current and harmonic data are transferred to things-internet gateway by signal input/output module, and server-centric data interaction, with
Time administrative center control harmonic rejection module according to analysis result the odd harmonic of 3~17 times suppressed, also can be according to pipe
The instruction that reason center sends carries out harmonics restraint to odd harmonic, when harmonic wave suppresses scope beyond equipment, and administrative center can be to clothes
Business device alert is so that related personnel checks, the most intelligent dynamic capacity can be according to the reactive power of electrical equipment
Change carries out reactive-load compensation automatically;
Server-centric is substantially carried out data storage, data analysis, draws form, reports to the police and produce various data sheet, and leads to
Cross analysis harmonic data and operation of power networks state, propose and assign the harmonics restraint parameter of optimization, provide what regional power grid ran
Optimisation strategy, thus effectively promote power grid quality and operational energy efficiency, improve the safety of load equipment, and hand over user
Mutually, the content of user's inquiry being passed to client terminal by network, client terminal is that the electronics of any integrated web browser sets
Standby, mainly carry out data interaction with server-centric, including the information of checking, add information, delete information, revise information.
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CN107064716A (en) * | 2017-05-05 | 2017-08-18 | 广东正力通用电气有限公司 | A kind of power transmission line break monitoring system and method |
CN109524885A (en) * | 2019-01-23 | 2019-03-26 | 贵州电网有限责任公司 | A kind of intelligent low-pressure comprehensive distribution box based on Internet of Things chip wireless communication module |
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