CN106300654A - Active distribution distributing voltage control system based on Intelligent time delay and control method - Google Patents
Active distribution distributing voltage control system based on Intelligent time delay and control method Download PDFInfo
- Publication number
- CN106300654A CN106300654A CN201510281302.5A CN201510281302A CN106300654A CN 106300654 A CN106300654 A CN 106300654A CN 201510281302 A CN201510281302 A CN 201510281302A CN 106300654 A CN106300654 A CN 106300654A
- Authority
- CN
- China
- Prior art keywords
- voltage
- generation unit
- distributed generation
- substation
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
-
- 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
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides active distribution distributing voltage control system based on Intelligent time delay and control method, including middle buckling power station, medium voltage distribution network feeder line, distributed generation unit, communication system and electrical power distribution automatization system, wherein, buckling power station outlet in the connection of medium voltage distribution network feeder line, distributed generation unit is scattered on medium voltage distribution network feeder line by transformator, and described electrical power distribution automatization system includes master station and performs substation.The present invention uses distributing pressure regulation, control to provide voltage support by this locality, problem slowly is responded when can overcome communication line fault and quick voltage change, Intelligent time delay is set on the basis of distributing pressure regulation, can effectively prevent overregulating of voltage, decrease the regulation number of times of distributed generation unit, it is ensured that the economic benefit of distributed generation unit.
Description
Technical field
The present invention relates to actively distribution distributing Control of Voltage technical field, particularly relate to active distribution distributing voltage control system based on Intelligent time delay and control method.
Background technology
Along with distributed power source (DG) permeability improves constantly, conventional electrical distribution net is caused wide influence, the voltage levvl such as changing power distribution network, the capacity of short circuit improving power distribution network, the power supply reliability affecting network and the deterioration etc. of the aggravation quality of power supply.In this context, the concept of active distribution network (ADN) is applied and is given birth to.ADN task in running is adequately and reasonably to utilize regenerative resource, and provides a user with abundant amount, up-to-standard electric energy, the most reliable, safe, the most economic operation.Thereby ensure that distribution network voltage is up-to-standard and voltage stabilization is to ensure that the guarantee of power distribution network reliability service.When distributed power source accesses active distribution network, its voltage's distribiuting and stability can be impacted, for ensureing that each node voltage of power distribution network is stable, active distribution network reactive power/voltage control technology need to be studied.
At present, traditional pressure regulation of power distribution network utilizes local measurement distributing to control on the spot, and mainly transformer station's reactive power/voltage control of transformer station's ULTC and Capacitor banks and feeder line reactive-load compensation such as shunt capacitance etc., do not account for a large amount of DG grid-connected.A large amount of accesses along with DG, voltage problem is more prominent, DG can also be actively engaged in pressure regulation as a kind of regulating and controlling voltage means, is not increasing optional equipment and additional investment, only makes full use of electromotor itself and has and send or improve ADN regulating and controlling voltage ability on the basis of the ability of absorbing reactive power.In DG participates in the active distribution network management strategy of pressure regulation, decentralised control is a kind of effective measures, improves electrical network overall operation situation by adjusting the voltage of distributed power source access point.But the problem that the pressure regulation of DG dispersion at present exists is that all DG of same feeder line, when monitoring local voltage out-of-limit, take control measure simultaneously, overregulating of voltage may be caused, cause the action that DG is unnecessary, even cause the frequent regulation and control of DG, affect the safe and stable operation of system.
Summary of the invention
The technical problem to be solved is the defect that may overregulate overcoming existing DG distributing voltage-regulating technique to exist, it is provided that active distribution distributing voltage control system based on Intelligent time delay and control method, and Supply Security, reliability are high.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that active distribution distributing voltage control system based on Intelligent time delay, including middle buckling power station, medium voltage distribution network feeder line, distributed generation unit, communication system and electrical power distribution automatization system, wherein, buckling power station outlet in the connection of medium voltage distribution network feeder line, distributed generation unit is scattered on medium voltage distribution network feeder line by transformator, and described electrical power distribution automatization system includes master station and performs substation.
Described distributed generation unit be generated output several kilowatts to hundreds of megawatts small modular, distributing generator unit, including solar power generation unit, wind power generation unit, biomass power generation unit and tidal power generation unit, solar power generation unit includes photovoltaic cells and photo-thermal power generation unit.
Described communication system includes wire communication device and radio communication device, and communication system uses IEC61850 communication protocol to perform.
Described wire communication device includes dedicated twisted-pair, voice-frequency cable, local telephone, distribution line carrier, fiber optic communication, on-the-spot power bus and RS-485 bus.
Described radio communication device includes GPRS/CDMA, digital microwave, data radio station, wireless frequency expansion and broadband wireless communications.
Arranging signal picker and amplitude device in described radio communication device, described amplitude device includes directional gain antenna and Omnidirectional rotation antenna, and described directional gain antenna is spiral arm dipole antenna, is connected with described signal picker by coaxial cable.
Described master station is positioned at middle buckling power station, each execution substation is carried out operation monitoring, and carries out adjusting of substation Intelligent time delay time by certain principle of optimality；Described execution substation is positioned at each distributed generation unit side, is monitored this ground voltage, finds when out-of-limit situation occurs in voltage, and the time delays adjusted by main website regulates the distributed generation unit monitored.
Active distribution distributing voltage control method based on Intelligent time delay, key step includes: arranged the delay time of each execution substation regulation and control voltage according to artificial demand by the main website in middle buckling power station, or according to system network shelf structure, the type of distributed generation unit, capacity and site, calculate the delay time of each execution substation by certain optimized algorithm；
By the local voltage condition of each execution substation monitoring, and take different measure according to concrete reason: when substation monitors local Over High-Limit Voltage, detection signal is transferred to main website by communication system, starts simultaneously at timing and continue to monitor this ground voltage；When timing has reached the delay time that main website issues, if now voltage is the most out-of-limit, perform pressure regulation order, distributed generation unit uses voltage mode control, the automatic voltage regulator action of distributed generation unit, exciting current is reduced, so that the terminal voltage of electromotor has declined for reducing this ground voltage；If now voltage recovers normal range, the most not performing pressure regulation order, distributed generation unit uses power factor controlling pattern；
When substation monitor this ground voltage get over lower limit time, similar with situation during the most more upper limit, detection signal is transferred to main website by communication system by substation, starts simultaneously at timing and continues to monitor this ground voltage；When timing has reached the delay time that main website issues, if now voltage is the most out-of-limit, perform pressure regulation order, distributed generation unit uses voltage mode control, the automatic voltage regulator action of distributed generation unit, exciting current is increased, so that the terminal voltage of electromotor increases for improving this ground voltage；If now voltage recovers normal range, the most not performing pressure regulation order, distributed generation unit uses power factor controlling pattern；
When substation monitor this ground voltage within normal range time, substation does not perform pressure regulation order, and distributed generation unit uses power factor controlling pattern, and the meritorious of distributed generation unit is exerted oneself and idle Ratio invariableness of exerting oneself, i.e. P/Q Ratio invariableness, reactive power changes along with active power change.
In the present invention, distributed power generation participates in the pattern of voltage-regulation is power factor-voltage mode control, i.e. PFC-VC control model, it is to liking generated output small modular, distributing at several kilowatts to hundreds of megawatts, being arranged in the generator unit efficient, reliable near user, including solar electrical energy generation (photovoltaic cell, photo-thermal power generation), wind-power electricity generation, biomass power generation, tidal power generation etc., concrete voltage-regulation control measure are: voltage is qualified, uses power factor controlling pattern；Voltage is defective, uses voltage mode control.When voltage reaches capacity VminOr VmaxTime, using voltage mode control, the automatic tension regulator of electromotor carries out pressure regulation by regulation exciting current, the reactive power changing electromotor.Voltage is down to lower threshold VPFC minTime, reduce the value of P/Q；Voltage rises to upper limit threshold VPFC max, increase the value of P/Q.Power factor changes the most therewith, but must be in allowing range of operation, i.e. PF in figureminTo PFmaxIn the range of.When voltage is in acceptability limit, using power factor controlling pattern, the value keeping P/Q is certain.
Communication system includes wired communication mode and communication, it is mainly used in coupling between main website and each substation and communicates, and the information gathering between each substation and distributed generation unit and transmission, wherein wire communication mode includes special line (twisted-pair feeder or voice-frequency cable), local telephone, distribution line carrier, fiber optic communication, fieldbus and RS-485；Communication includes GPRS/CDMA, digital microwave, data radio station, wireless frequency expansion, broadband wireless communications, and communication protocol is pressed IEC61850 communication protocol and performed.When employing is wirelessly transferred, in order to realize stability and the high efficiency of remote transmission, wireless communication unit has used two kinds of antennas, i.e. directional gain antenna and Omnidirectional rotation antenna, directional gain antenna is spiral arm dipole antenna, it is connected with signal picker by coaxial cable, can play and receive and transfer parameter instruction and the effect of transmission voltage feedback signal, thus reduce engineering and raise the difficulty of directivity alignment between line all day；Omnidirectional rotation antenna is to be the small spiral antenna of omnidirectional in normal orientation, and it is connected with the voltage monitoring unit of substation, plays transmission instruction, and sampled signal feeds back to the effect of wireless communication unit.The principle being configured so that antenna is: the antenna being connected with signal picker to send command pulse signal to multiple substations, and its installation site arbitrarily can adjust in prescribed limit, therefore it be the high-gain aerial oriented；The aerial position being connected with each substation is installed and is determined by position, measured point, installation direction may be required for receiving the command signal from signal picker than in narrow and all directions, therefore the small spiral antenna of modus operand upwards omnidirectional, reduce engineering and raise the difficulty of directivity alignment between line all day.
Electrical power distribution automatization system includes master station and performs substation.Master station is positioned at middle buckling power station, each execution substation is carried out operation monitoring, and carries out adjusting of substation Intelligent time delay time by certain principle of optimality.Performing substation and be positioned at each distributed generation unit side, major function, for monitoring this ground voltage, finds that the time delays that voltage occurs that out-of-limit situation is adjusted by main website regulates the distributed generation unit monitored.
The present invention, by have employed above-mentioned technology, has good technical economic benefit, specific as follows:
1) present invention uses distributing pressure regulation, controls to provide voltage support by this locality, therefore, it is possible to respond problem slowly when overcoming communication line fault and quick voltage change.Secondly as distributing controls can to improve Operation of Electric Systems and reduces the investment of communication system, therefore decrease cost, be suitable for the ground such as remote mountain areas and carry out pressure regulation operation.
2) present invention proposes distributed generation unit and is actively engaged in the regulating and controlling voltage of active distribution network, electrical network overall operation situation is improved by adjusting the voltage of distributed generation unit access point, distributed generation unit can be solved and access the impact to Voltage Stability of Distribution Networks in a large number, promote the access capability of regenerative resource in power distribution network.
3) present invention uses main website to set the mode of each substation delay time based on the overall situation, and overcome that current distributing pressure regulation exists to a certain extent is based only upon local information, the defect that communication level between electrical network assembly is limited, thus improves its regulating and controlling voltage effect.
4) present invention sets Intelligent time delay on the basis of distributing pressure regulation, can effectively prevent overregulating of voltage, decreases the regulation number of times of distributed generation unit, it is ensured that the economic benefit of distributed generation unit.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail:
Fig. 1 is present invention active distribution network based on Intelligent time delay distributing voltage control system structured flowchart.
Fig. 2 is the control flow chart that the distributed generation unit of the present invention is actively engaged in regulating and controlling voltage.
Fig. 3 is voltage x current vectogram under PFC-VC control model of the present invention.
Detailed description of the invention
In order to better understand the technological means of the present invention, and can be practiced according to the content of description, and in order to above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by the detailed description of the invention of the present invention.
As shown in Figure 1, Figure 2, Figure 3 shows, active distribution distributing voltage control system based on Intelligent time delay, including middle buckling power station 1, medium voltage distribution network feeder line 2, distributed generation unit 3, communication system and electrical power distribution automatization system, wherein, buckling power station outlet in the connection of medium voltage distribution network feeder line, distributed generation unit is scattered on medium voltage distribution network feeder line by transformator, electrical power distribution automatization system includes master station 4 and performs substation 5, and communication system is represented by the phantom line segments connecting different units in FIG.
Distributed generation unit be generated output several kilowatts to hundreds of megawatts small modular, distributing generator unit, including solar power generation unit, wind power generation unit, biomass power generation unit and tidal power generation unit, solar power generation unit includes photovoltaic cells and photo-thermal power generation unit.
Communication system includes wire communication device and radio communication device, and communication system uses IEC61850 communication protocol to perform；Wire communication device includes dedicated twisted-pair, voice-frequency cable, local telephone, distribution line carrier, fiber optic communication, on-the-spot power bus and RS-485 bus；Radio communication device includes GPRS/CDMA, digital microwave, data radio station, wireless frequency expansion and broadband wireless communications；Arranging signal picker and amplitude device in radio communication device, amplitude device includes directional gain antenna and Omnidirectional rotation antenna, and directional gain antenna is spiral arm dipole antenna, is connected with signal picker by coaxial cable.
Master station is positioned at middle buckling power station, each execution substation is carried out operation monitoring, and carries out adjusting of substation Intelligent time delay time by certain principle of optimality；Performing substation and be positioned at each distributed generation unit side, be monitored this ground voltage, find when out-of-limit situation occurs in voltage, the time delays adjusted by main website regulates the distributed generation unit monitored.
Active distribution distributing voltage control method based on Intelligent time delay, key step is as shown in Figure 2, its previous step is the delay time being arranged regulation and control voltage in each execution substation by the main website in middle buckling power station according to artificial demand, or according to system network shelf structure, the type of distributed generation unit, capacity and site, calculate the delay time of each execution substation by certain optimized algorithm, be handed down to each execution substation by communication system.It is said that in general, the execution substation of same feeder line, its delay time is set with the most differential by the position being distributed in feeder line, to reach when voltage out-of-limit, and the effect of each distributed generation unit timesharing action；
Fig. 2 is the control flow chart that distributed generation unit is actively engaged in regulating and controlling voltage, concrete operations include: by the local voltage condition of each execution substation monitoring, and take different measure according to concrete reason: substation is positioned at distributed generation unit side, when substation monitors local Over High-Limit Voltage, detection signal is transferred to main website by communication system, starts simultaneously at timing and continue to monitor this ground voltage；When timing has reached the delay time that main website issues, if now voltage is the most out-of-limit, perform pressure regulation order, distributed generation unit uses voltage mode control, the automatic voltage regulator action of distributed generation unit, exciting current is reduced, so that the terminal voltage of electromotor has declined for reducing this ground voltage；If now voltage recovers normal range, the most not performing pressure regulation order, distributed generation unit uses power factor controlling pattern；
When substation monitor this ground voltage get over lower limit time, similar with situation during the most more upper limit, detection signal is transferred to main website by communication system by substation, starts simultaneously at timing and continues to monitor this ground voltage；When timing has reached the delay time that main website issues, if now voltage is the most out-of-limit, perform pressure regulation order, distributed generation unit uses voltage mode control, the automatic voltage regulator action of distributed generation unit, exciting current is increased, so that the terminal voltage of electromotor increases for improving this ground voltage；If now voltage recovers normal range, the most not performing pressure regulation order, distributed generation unit uses power factor controlling pattern；
When substation monitor this ground voltage within normal range time, substation does not perform pressure regulation order, and distributed generation unit uses power factor controlling pattern, and the meritorious of distributed generation unit is exerted oneself and idle Ratio invariableness of exerting oneself, i.e. P/Q Ratio invariableness, reactive power changes along with active power change.Regulating and controlling voltage flow process is finally attributed to Load flow calculation, and the monitoring node voltage entering distributed generation unit initial step calculates process.
In the present invention, distributed power generation participates in the pattern of voltage-regulation is power factor-voltage mode control, i.e. PFC-VC control model, it is to liking generated output small modular, distributing at several kilowatts to hundreds of megawatts, being arranged in the generator unit efficient, reliable near user, including solar electrical energy generation (photovoltaic cell, photo-thermal power generation), wind-power electricity generation, biomass power generation, tidal power generation etc., voltage x current vectogram is as shown in Figure 3, concrete voltage-regulation control measure are: voltage is qualified, uses power factor controlling pattern；Voltage is defective, uses voltage mode control.When voltage reaches capacity VminOr VmaxTime, using voltage mode control, the automatic tension regulator of electromotor carries out pressure regulation by regulation exciting current, the reactive power changing electromotor.Voltage is down to lower threshold VPFC minTime, reduce the value of P/Q；Voltage rises to upper limit threshold VPFC max, increase the value of P/Q.Power factor changes the most therewith, but must be in allowing range of operation, i.e. PF in figureminTo PFmaxIn the range of.When voltage is in acceptability limit, using power factor controlling pattern, the value keeping P/Q is certain.
Communication system includes wired communication mode and communication, it is mainly used in coupling between main website and each substation and communicates, and the information gathering between each substation and distributed generation unit and transmission, wherein wire communication mode includes special line (twisted-pair feeder or voice-frequency cable), local telephone, distribution line carrier, fiber optic communication, fieldbus and RS-485；Communication includes GPRS/CDMA, digital microwave, data radio station, wireless frequency expansion, broadband wireless communications, and communication protocol is pressed IEC61850 communication protocol and performed.Radio communication device arranges signal picker and amplitude device, amplitude device includes directional gain antenna and Omnidirectional rotation antenna, signal picker includes data collecting card, dsp chip, modulus processing unit and memorizer, and the signal of voltage sampling unit collection is converted into digital signal.Antenna is the important tool contacting wireless launcher and radio receiver in this programme, its basic function is for receiving and radiated electromagnetic wave, in order to strengthen wireless transmission distance, using gain and the performance improving antenna, increase wireless device transmitter launches power and the receiving sensitivity of wireless device receiver.This programme work and the public wave band of 429MHz to 436MHz, the signal transmission power of this wave band of national regulation must not exceed 10mV, the sensitivity of receiver arrives and is difficult to the most afterwards promote, so design high performance antenna can be obviously improved the performance of wireless sensing system, so, for the most important parameter of antenna: directionality and gain effect, this programme is according to the demand of practical engineering application and feature, when employing is wirelessly transferred, two kinds of antennas are used, i.e. directional gain antenna and Omnidirectional rotation antenna, directional gain antenna is spiral arm dipole antenna, it is connected with signal picker by coaxial cable, can play and receive and transfer parameter instruction and the effect of transmission voltage feedback signal, thus reduce engineering and raise the difficulty of directivity alignment between line all day；Omnidirectional rotation antenna is to be the small spiral antenna of omnidirectional in normal orientation, and it is connected with the voltage monitoring unit of substation, plays transmission instruction, and sampled signal feeds back to the effect of wireless communication unit.The principle being configured so that antenna is: the antenna being connected with signal picker to send command pulse signal to multiple substations, and its installation site arbitrarily can adjust in prescribed limit, therefore it be the high-gain aerial oriented；The aerial position being connected with each substation is installed and is determined by position, measured point, installation direction may be required for receiving the command signal from signal picker than in narrow and all directions, therefore the small spiral antenna of modus operand upwards omnidirectional, reduce engineering and raise the difficulty of directivity alignment between line all day.
Electrical power distribution automatization system includes master station and performs substation.Master station is positioned at middle buckling power station, each execution substation is carried out operation monitoring, and carries out adjusting of substation Intelligent time delay time by certain principle of optimality.Performing substation and be positioned at each distributed generation unit side, major function, for monitoring this ground voltage, finds that the time delays that voltage occurs that out-of-limit situation is adjusted by main website regulates the distributed generation unit monitored.
Claims (8)
1. active distribution distributing voltage control system based on Intelligent time delay, it is characterized in that: include middle buckling power station, medium voltage distribution network feeder line, distributed generation unit, communication system and electrical power distribution automatization system, wherein, buckling power station outlet in the connection of medium voltage distribution network feeder line, distributed generation unit is scattered on medium voltage distribution network feeder line by transformator, and described electrical power distribution automatization system includes master station and performs substation.
2. active distribution distributing voltage control system based on Intelligent time delay as claimed in claim 1, it is characterized in that: described distributed generation unit be generated output several kilowatts to hundreds of megawatts small modular, distributing generator unit, including solar power generation unit, wind power generation unit, biomass power generation unit and tidal power generation unit, solar power generation unit includes photovoltaic cells and photo-thermal power generation unit.
3. active distribution distributing voltage control system based on Intelligent time delay as claimed in claim 1, it is characterised in that: described communication system includes wire communication device and radio communication device, and communication system uses IEC61850 communication protocol to perform.
4. active distribution distributing voltage control system based on Intelligent time delay as claimed in claim 3, it is characterised in that: described wire communication device includes dedicated twisted-pair, voice-frequency cable, local telephone, distribution line carrier, fiber optic communication, on-the-spot power bus and RS-485 bus.
5. active distribution distributing voltage control system based on Intelligent time delay as claimed in claim 3, it is characterised in that: described radio communication device includes GPRS/CDMA, digital microwave, data radio station, wireless frequency expansion and broadband wireless communications.
6. the active distribution distributing voltage control system based on Intelligent time delay as described in claim 3 or 5, it is characterized in that: described radio communication device arranges signal picker and amplitude device, described amplitude device includes directional gain antenna and Omnidirectional rotation antenna, described directional gain antenna is spiral arm dipole antenna, is connected with described signal picker by coaxial cable.
7. active distribution distributing voltage control system based on Intelligent time delay as claimed in claim 1, it is characterized in that: described master station is positioned at middle buckling power station, each execution substation is carried out operation monitoring, and carries out adjusting of substation Intelligent time delay time by certain principle of optimality；Described execution substation is positioned at each distributed generation unit side, is monitored this ground voltage, finds when out-of-limit situation occurs in voltage, and the time delays adjusted by main website regulates the distributed generation unit monitored.
8. active distribution distributing voltage control method based on Intelligent time delay, it is characterized in that, key step includes: arranged the delay time of each execution substation regulation and control voltage according to artificial demand by the main website in middle buckling power station, or according to system network shelf structure, the type of distributed generation unit, capacity and site, calculate the delay time of each execution substation by certain optimized algorithm；
By the local voltage condition of each execution substation monitoring, and take different measure according to concrete reason: when substation monitors local Over High-Limit Voltage, detection signal is transferred to main website by communication system, starts simultaneously at timing and continue to monitor this ground voltage；When timing has reached the delay time that main website issues, if now voltage is the most out-of-limit, perform pressure regulation order, distributed generation unit uses voltage mode control, the automatic voltage regulator action of distributed generation unit, exciting current is reduced, so that the terminal voltage of electromotor has declined for reducing this ground voltage；If now voltage recovers normal range, the most not performing pressure regulation order, distributed generation unit uses power factor controlling pattern；
When substation monitor this ground voltage get over lower limit time, similar with situation during the most more upper limit, detection signal is transferred to main website by communication system by substation, starts simultaneously at timing and continues to monitor this ground voltage；When timing has reached the delay time that main website issues, if now voltage is the most out-of-limit, perform pressure regulation order, distributed generation unit uses voltage mode control, the automatic voltage regulator action of distributed generation unit, exciting current is increased, so that the terminal voltage of electromotor increases for improving this ground voltage；If now voltage recovers normal range, the most not performing pressure regulation order, distributed generation unit uses power factor controlling pattern；
When substation monitor this ground voltage within normal range time, substation does not perform pressure regulation order, and distributed generation unit uses power factor controlling pattern, and the meritorious of distributed generation unit is exerted oneself and idle Ratio invariableness of exerting oneself, i.e. P/Q Ratio invariableness, reactive power changes along with active power change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510281302.5A CN106300654A (en) | 2015-05-28 | 2015-05-28 | Active distribution distributing voltage control system based on Intelligent time delay and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510281302.5A CN106300654A (en) | 2015-05-28 | 2015-05-28 | Active distribution distributing voltage control system based on Intelligent time delay and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106300654A true CN106300654A (en) | 2017-01-04 |
Family
ID=57635612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510281302.5A Pending CN106300654A (en) | 2015-05-28 | 2015-05-28 | Active distribution distributing voltage control system based on Intelligent time delay and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106300654A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011030558A1 (en) * | 2009-09-10 | 2011-03-17 | Abe Rikiya | Multi-terminal power conversion device, multi-terminal power transfer device, and power network system |
| CN103138269A (en) * | 2013-02-06 | 2013-06-05 | 上海交通大学 | Layered and distributed network voltage regulator control system and method based on active mechanism |
| CN104333128A (en) * | 2014-07-11 | 2015-02-04 | 国家电网公司 | Power supply enterprise power distribution network system based on AGPS and 4G |
| CN104333127A (en) * | 2014-07-11 | 2015-02-04 | 国家电网公司 | Power transmission and distribution controlling integrated communication network system based on distributed passive optical network |
-
2015
- 2015-05-28 CN CN201510281302.5A patent/CN106300654A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011030558A1 (en) * | 2009-09-10 | 2011-03-17 | Abe Rikiya | Multi-terminal power conversion device, multi-terminal power transfer device, and power network system |
| CN103138269A (en) * | 2013-02-06 | 2013-06-05 | 上海交通大学 | Layered and distributed network voltage regulator control system and method based on active mechanism |
| CN104333128A (en) * | 2014-07-11 | 2015-02-04 | 国家电网公司 | Power supply enterprise power distribution network system based on AGPS and 4G |
| CN104333127A (en) * | 2014-07-11 | 2015-02-04 | 国家电网公司 | Power transmission and distribution controlling integrated communication network system based on distributed passive optical network |
Non-Patent Citations (2)
| Title |
|---|
| THIPNATEE SANSAWATT, ET AL: ""integrating distributed generation using decentralized voltage regulation"", 《IEEE PES GENERAL MEETING》 * |
| 高孟友: ""基于实时拓扑识别的分布式馈线自动化控制方法"", 《电力系统自动化》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018279049B2 (en) | Method and apparatus for bidirectional storage and renewable power converter | |
| CN205092592U (en) | Distributing type photovoltaic power generation and control system | |
| CN105720585B (en) | The reactive power control method and system of wind power plant cluster | |
| CN205304271U (en) | Alternating current circuit field energy collection system of impedance characteristic based on transformer | |
| CN110855006B (en) | Distributed optical storage and charging regulation and control system based on edge internet of things agent | |
| CN103532168A (en) | Distributed power generating grid-connected control circuit | |
| CN109524985A (en) | A kind of wireless electric vehicle charging device and method based on wind-light storage | |
| CN108631324A (en) | A kind of more reactive voltage devices of power grid are without distribution of work coordinated control system and method | |
| CN104967123B (en) | Under power distribution network, intermittent energy source is dissolved monitoring device and its monitoring method | |
| Diamantoulakis et al. | On the design of an optimal hybrid energy system for base transceiver stations | |
| CN205265609U (en) | Adopt carrier communication's interchange collection flow box and photovoltaic power generation station | |
| CN204681163U (en) | A kind of initiatively distribution distributing voltage acquisition transmitting device | |
| CN203536975U (en) | Distributed power generating grid-connected control circuit | |
| CN202798151U (en) | Lead-dynamic capacity-increasing system based on RF transmission | |
| CN106300654A (en) | Active distribution distributing voltage control system based on Intelligent time delay and control method | |
| CN206389311U (en) | Photovoltaic power station | |
| CN206117217U (en) | Little impact load of outdoor fixed installation in parking stall fills power plant system fast | |
| CN106532783B (en) | Distributed photovoltaic coordination control system | |
| CN110875605A (en) | Intelligent household micro-grid system | |
| CN205017094U (en) | Intelligence microgrid control system | |
| CN204495953U (en) | Distribution line failure wireless location system | |
| CN214101803U (en) | Data acquisition equipment | |
| CN208285018U (en) | A kind of photovoltaic power station management control system | |
| CN220754366U (en) | Photovoltaic commercial power complementary power supply system | |
| CN216774379U (en) | Movable prefabricated cabin type energy storage virtual synchronous machine system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |