CN109873498A - A kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic - Google Patents
A kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic Download PDFInfo
- Publication number
- CN109873498A CN109873498A CN201910212338.6A CN201910212338A CN109873498A CN 109873498 A CN109873498 A CN 109873498A CN 201910212338 A CN201910212338 A CN 201910212338A CN 109873498 A CN109873498 A CN 109873498A
- Authority
- CN
- China
- Prior art keywords
- voltage
- monitoring
- phase
- low
- 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
- 238000012544 monitoring process Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 17
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 230000004075 alteration Effects 0.000 claims description 4
- 238000013501 data transformation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 108091071337 20 family Proteins 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic that the invention discloses a kind of, by monitoring intelligent electric meter, photovoltaic DC-to-AC converter and power quality on-line terminal collected power quality operation data, realize comprehensive covering of low-voltage platform area power supply head end, photovoltaic access point and load access point, it is high to overcome traditional equipment for monitoring power quality price, monitoring point is difficult to the defect covered comprehensively, reduces the cost input of low-voltage platform area power quality on-line monitoring.
Description
Technical field
The present invention relates to power quality on-line monitoring correlative technology field more particularly to a kind of low pressure containing distributed photovoltaic
Distribution network electric energy quality integrated monitoring is the low-voltage network progress diversiform data acquisition for distributed photovoltaic access
The comprehensive power quality on-line monitoring method of terminal fusion can effectively expand low-voltage distribution network electric energy quality on-line monitoring model
It encloses, significantly reduces the construction cost of Electric Power Quality On-line Monitor System.
Background technique
With country's vigorously supporting and promoting to distributed photovoltaic power generation, the infiltration of distributed photovoltaic power generation in power distribution network
Rate constantly increases, and is on the rise on distribution network electric energy quality influence.Distributed photovoltaic accesses low-voltage network to its electric energy matter
Amount influences to be mainly reflected in the following aspects:
1) voltage deviation problem.Low-voltage platform area longer for power supply distance, distributed photovoltaic access can change power distribution network
Power flow, and will lead to some photovoltaic access points and there is a problem of that voltage is higher, be unfavorable for the safety and stability of power load
Operation.
2) power factor problem.Distributed photovoltaic accesses low-voltage network, and in power generation peak period, low pressure power load is from matching
The active power drawn in power grid is greatly reduced or even occurs the active reactive power sent, but drawn and changes less, may lead
Cause the power factor of total input-wire relatively low.
3) three-phase imbalance problem.With the deep propulsion of single-phase poverty alleviation photovoltaic, unordered in low-voltage network is connect
Enter to exacerbate the three-phase imbalance problem of low-voltage network, three-phase load unbalance not only will increase losses of distribution network, can also dislike
Change the voltage deviation problem of power supply end.
4) harmonic problem.Distributed photovoltaic inverter uses electronic power switch device, is typical nonlinear-load, meeting
It generates higher hamonic wave and injects power grid, supply voltage is caused to distort.
With the raising of distributed photovoltaic power generation permeability, the above power quality problem can also further deteriorate.Meanwhile with
The development of power electronic technique, the extensive application of especially some advanced equipments of high grade and precision, the requirement to distribution network electric energy quality
It is more stringent.Therefore, it is necessary to reinforce carrying out power quality on-line monitoring to the low-voltage network that distributed photovoltaic accesses.
Due to the unordered access of distributed photovoltaic, voltage is changed in conventional electrical distribution net along distribution line direction of tide gradually
Reduced rule only carries out voltage monitoring at power supply first and last end and is difficult to meet the power distribution network monitoring requirements of distributed generation resource access.
But load bus is numerous in low-voltage network, and power quality on-line monitoring terminal price is higher, and electric energy quality monitoring point is difficult to entirely
All supply nodes of face covering low-voltage network.
Summary of the invention
The present invention is difficult to comprehensively for the on-line monitoring terminal of power quality existing for the low-voltage network containing distributed photovoltaic
The state of the art of covering proposes a kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic, reduces electric energy
The cost input of quality online monitoring system.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic, comprising:
According to the low-voltage distribution planar network architecture containing distributed photovoltaic, determine that electric energy quality monitoring point is low-voltage power supply head end, light
Lie prostrate access point and user access point；
For low-voltage power supply head end, power quality is installed and monitors terminal on-line, realization is to low-voltage platform area busbar voltage and always
The on-line monitoring of the full power quality index of inlet wire current；
For photovoltaic access point, calculating and data-transformation facility using photovoltaic DC-to-AC converter are realized and are supplied photovoltaic access point
The monitoring of piezoelectric voltage, generated output and harmonic wave；
For user access point, using the monitoring function of intelligent electric meter, realize the supply voltage to low-voltage customer access point,
The monitoring of load current, electric power and electricity；
Intelligent electric meter, photovoltaic DC-to-AC converter and the power quality on-line monitoring collected data of terminal pass through certain communication side
Formula is transferred to electric energy quality monitoring background server, to realize the comprehensive power quality monitoring that a variety of monitoring terminals blend.
As seen from the above technical solution provided by the invention, by by intelligent electric meter, photovoltaic DC-to-AC converter and electric energy matter
The amount on-line monitoring collected power quality operation data of terminal realizes low-voltage platform area power supply head end, photovoltaic access point and load
Comprehensive covering of access point, overcomes traditional equipment for monitoring power quality price height, and monitoring point is difficult to the defect covered comprehensively, drops
The cost input of low low-voltage platform area power quality on-line monitoring.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of low-voltage network comprehensive power quality monitoring side containing distributed photovoltaic provided in an embodiment of the present invention
The flow chart of method；
Fig. 2 is the low-voltage distribution planar network architecture and polymorphic type power quality prison provided in an embodiment of the present invention containing distributed photovoltaic
Survey terminal distribution schematic diagram；
Fig. 3 is system architecture schematic diagram provided in an embodiment of the present invention.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.
The embodiment of the present invention provides a kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic, such as schemes
Shown in 1, specifically include that
Step 1, low-voltage distribution planar network architecture of the basis containing distributed photovoltaic determine that electric energy quality monitoring point is that low-voltage power supply is first
End, photovoltaic access point and user access point.
As shown in Fig. 2, due to the highest node of low-voltage network voltage necessarily photovoltaic access point (node 3) or low pressure system
System power supply head end (node 1), and the minimum node of low-voltage network voltage necessarily user access point (node 2 or node 4) or
Low-pressure system powers head end (node 1).Necessarily low-voltage customer (saves for harmonic voltage and the node of three-phase imbalance voltage most serious
Point 2 or node 4) or photovoltaic access point (node 3).Therefore it is needed for the power quality on-line monitoring point position of low-voltage network
Consider low-voltage power supply head end, photovoltaic access point and user access point.
In addition, determining the electric energy quality monitoring content of each monitoring point according to monitoring location and there are power quality problems.
Since the most important power quality problem in low-voltage platform area is voltage deviation problem, and the unordered access of distributed photovoltaic changes biography
The rule that voltage is gradually decreased along distribution line direction of tide in power grid under unified central planning, therefore power head end, user access point and photovoltaic
The voltage deviation of access point belongs to emphasis monitoring content；And harmonic wave, idle and imbalance compensation device are generally installed in and match
Become power supply head end, therefore low-voltage platform area power supply head end needs to realize to harmonic wave, idle and out-of-balance current on-line monitoring；This
Outside, in order to monitor contribution of the different user to harmonic pollution in electric power net, the monitoring to single user's harmonic wave occurrence quantity can be increased.
Step 2, for low-voltage power supply head end, power quality is installed and monitors terminal on-line, is realized to low-voltage platform area bus electricity
The on-line monitoring of pressure and the full power quality index of total input-wire electric current.
In the embodiment of the present invention, the online prison for the full power quality index that the power quality on-line monitoring terminal is realized
It surveys, including voltage deviation, three-phase imbalance voltage and current, reactive power and power factor, harmonic voltage and harmonic current
Monitoring fully meets the monitoring requirements of power supply head end power quality operating index.
Step 3, for photovoltaic access point, utilize the calculating of photovoltaic DC-to-AC converter and data-transformation facility (3G/4G, ether
Net), realize the monitoring to photovoltaic access point supply voltage, generated output and harmonic wave.
Step 4 realizes the confession to low-voltage customer access point using the monitoring function of intelligent electric meter for user access point
The monitoring of piezoelectric voltage, load current, electric power and electricity.
Step 5, intelligent electric meter, photovoltaic DC-to-AC converter and the collected data of power quality on-line monitoring terminal are passed through certain
Communication modes are transferred to electric energy quality monitoring background server, to realize the comprehensive power quality that a variety of monitoring terminals blend
Monitoring.
As shown in figure 3, being system architecture schematic diagram；Intelligent electric meter, photovoltaic DC-to-AC converter and power quality monitor terminal on-line
Collected data can be transferred to electric energy quality monitoring background service by modes such as RS485, Ethernet or 3G/4G networks
Device combines the data received to carry out comprehensive power quality monitoring by electric energy quality monitoring background server.
In the embodiment of the present invention, comprehensive power quality monitors monitoring, the load for specifically including that low-voltage customer harmonic wave occurrence quantity
Power monitoring, three-phase imbalance and voltage deviation monitoring etc., the monitoring content of different monitoring points is different.
Below to be carried out for the monitoring and load power monitoring that carry out low-voltage customer harmonic wave occurrence quantity to user access point
Explanation.
In the embodiment of the present invention, since low-voltage customer harmonic wave occurrence quantity and load operation power are there are certain correlation,
Using the corresponding relationship of harmonic wave and electric power, data are acquired by intelligent electric meter and are realized to low-voltage customer harmonic wave occurrence quantity
Monitoring, it may be assumed that
For single-phase user:
For three-phase user:
Wherein, IH、IH' correspond to single-phase user, total harmonic current that three-phase user generates；IL,max、IL,max' correspond to list
The maximum load current of phase user, three-phase user；UPhase、ULineCorrespond to the phase voltage of single-phase user, the line voltage of three-phase user；
SIt is single-phase,maxFor the maximum apparent energy of single-phase user；PIt is single-phase,maxFor the maximum active power of single-phase user；SThree-phase,maxFor three-phase use
The maximum three-phase apparent energy at family；PThree-phase,maxFor the maximum three phases active power of three-phase user；PF is the power factor of user；
TDDi% is that (its value can be counted by on-the-spot test or be carried out according to the empirical value of different load electric current total requirement aberration rate
It chooses).
In the embodiment of the present invention, electric energy quality monitoring background server is realized based on the data that intelligent electric meter transmits to user
The monitoring of access point voltage and load power.For the intelligent electric meter of data can not be uploaded, then using be connected upload twice it is tired
The load power of quantity calculation data approximate calculation relative users access point, calculation formula are as follows: P=(W2-W1)/tD, wherein W1It is
The accumulative electricity data uploaded for the first time, W2It is the accumulative electricity data of second of upload, tDFor upload twice electricity data when
Between be spaced.The average power factor PF of low-voltage customer generally 0.9 or more, can calculate the apparent energy S=P/ of low-voltage customer
PF。
In order to make it easy to understand, being illustrated below with reference to a specific example；It should be noted that being adopted in following examples
Numerical value is only for example, and user can do corresponding change according to actual demand.
In this example, low-voltage platform area distribution transformer is 150kVA, shares 2 outlets, wherein 1 power supply distance 500 of route
Rice, shares 20 family residents (wherein, A phase has 7 family residents, and B phase has 6 family residents, and C phase has 7 family residents)
With 3 single-phase photovoltaic power generation apparatus of 3kW (A phase 2, B phase 1)；650 meters of 2 power supply distance of route, shares 25 family residents
(wherein, A phase has 8 family residents, and B phase has 9 family residents, and C phase has 8 family residents) and 5 single-phase photovoltaic power generations of 3kW
Device (A phase 1, B phase 2, C phase 2), the electric current total requirement aberration rate TDD of each residenti% is 15%, each resident
The power factor PF of user is 0.90.The single-phase intelligent ammeter of resident is all made of power carrier table, is passed by power line
Defeated to arrive data collector, collector uploads reading by GPRS and copies server to remote；Roof 3kW photovoltaic contains RS485 interface, benefit
After the information such as voltage, electric current, power, generated energy that photovoltaic converter acquires are transmitted to GPRS or 3G/4G network or wifi
Platform server.
The network architecture, power consumer and distributed photovoltaic distribution situation based on the low-voltage platform area, by two lines road
Resident and distributed photovoltaic are numbered, and wherein the n-th power consumer number in x-ray road Y phase is CXYN, such as route 1A
No. 03 power consumer number in phase is C1A03User, No. 12 power consumer number in route 2B phase is C2B12；Similarly, X
N-th distributed photovoltaic number in route Y phase is PXYN, as No. 05 distributed photovoltaic family number in route 1A phase is
P1A05Photovoltaic.Its power quality index referring also to above-mentioned standard method, as the n-th power consumer in the Y phase of x-ray road power because
Several and electric current total requirement aberration rate is respectively PFXYNAnd TDDi_XYN%.
Low-voltage platform area powers head end installation with voltage and all the way electric energy quality on-line monitoring device of electric current all the way, monitoring
Whole power quality indexs of 0.4kV busbar voltage and 0.4kV total input-wire electric current, and pass through 3G/4G or GPRS for the electricity of monitoring
Energy quality operation data is transferred to the server on electric energy quality monitoring system backstage, and each power quality index is labeled as power quality
Monitoring data transmission intercal may be configured as 1min, 3min or 5min；
The voltage for the photovoltaic DC-to-AC converter access point that 8 family 3kW photovoltaic converters in route 1 and route 2 are monitored and
The information such as generation current, generated output and electricity are transmitted to electric energy quality monitoring system by communication modes such as 3G/4G or GPRS
Background server, electric energy quality monitoring data transfer interval may be configured as 1min, 3min or 5min.
By in route 1 and route 2 45 family resident's electric carrier intelligent ammeters monitoring voltage, electric current, power and
For the information such as electricity by electric force carrier transmission to data concentrator, data concentrator can concentrate 45 family resident of copy reading this TV station area to use
The ammeter data at family and related data is kept, while monitoring data are transmitted to electricity by communication modes such as 3G/4G or GPRS
Energy mass monitoring system background server, electric energy quality monitoring data transfer interval may be configured as 1min, 3min or 5min.
The Power operation data P uploaded according to each resident's intelligent electric meterXYNAnd the actual motion power of each resident because
Number PFXYN, can calculate total harmonic current content that corresponding resident generates is
It monitors power quality on-line terminal, photovoltaic DC-to-AC converter, intelligent electric meter and is uploaded to electric energy quality monitoring system backstage
The related operation data of server is handled and is shown, realizes the comprehensive monitoring of low-voltage platform area power quality.
Above scheme of the embodiment of the present invention, by monitoring intelligent electric meter, photovoltaic DC-to-AC converter and power quality on-line terminal
Collected power quality operation data realizes covering comprehensively for low-voltage platform area power supply head end, photovoltaic access point and load access point
Lid overcomes traditional equipment for monitoring power quality price height, and monitoring point is difficult to the defect covered comprehensively, reduces low-voltage platform area electricity
The cost input of energy quality on-line monitoring.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment can
The mode of necessary general hardware platform can also be added to realize by software by software realization.Based on this understanding,
The technical solution of above-described embodiment can be embodied in the form of software products, which can store non-easy at one
In the property lost storage medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions are with so that a computer is set
Standby (can be personal computer, server or the network equipment etc.) executes method described in each embodiment of the present invention.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (5)
1. a kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic characterized by comprising
According to the low-voltage distribution planar network architecture containing distributed photovoltaic, determine that electric energy quality monitoring point connects for low-voltage power supply head end, photovoltaic
Access point and user access point；
For low-voltage power supply head end, power quality is installed and monitors terminal on-line, is realized to low-voltage platform area busbar voltage and total input-wire
The on-line monitoring of the full power quality index of electric current；
For photovoltaic access point, calculating and data-transformation facility using photovoltaic DC-to-AC converter are realized to photovoltaic access point power supply electricity
The monitoring of pressure, generated output and harmonic wave；
Supply voltage, load to low-voltage customer access point are realized using the monitoring function of intelligent electric meter for user access point
The monitoring of electric current, electric power and electricity；
Intelligent electric meter, photovoltaic DC-to-AC converter and the power quality on-line monitoring collected data of terminal are passed by certain communication modes
It is defeated to arrive electric energy quality monitoring background server, to realize the comprehensive power quality monitoring that a variety of monitoring terminals blend.
2. a kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic according to claim 1,
It is characterized in that, the on-line monitoring for the full power quality index that the power quality on-line monitoring terminal is realized, including voltage deviation,
The monitoring of three-phase imbalance voltage and current, reactive power and power factor, harmonic voltage and harmonic current.
3. a kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic according to claim 1,
It is characterized in that, electric energy quality monitoring background server is realized to user access point voltage and born based on the data that intelligent electric meter transmits
The monitoring of lotus power.
4. a kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic according to claim 3,
It is characterized in that, for the intelligent electric meter of data can not be uploaded, then utilizes the accumulative electricity data approximate calculation uploaded twice that is connected
The load power of relative users access point, calculation formula are as follows: P=(W2-W1)/tD, wherein W1It is the accumulative electricity uploaded for the first time
Measure data, W2It is the accumulative electricity data of second of upload, tDFor the time interval for uploading electricity data twice.
5. a kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic according to claim 1 or 3,
It is characterized in that, it is humorous to low-voltage customer to acquire data realization by intelligent electric meter using the corresponding relationship of harmonic wave and electric power
The monitoring of wave occurrence quantity:
For single-phase user:
For three-phase user:
Wherein, IH、IH' correspond to single-phase user, total harmonic current that three-phase user generates；IL,max、IL,max' single-phase to correspond to
The maximum load current of user, three-phase user；UPhase、ULineCorrespond to the phase voltage of single-phase user, the line voltage of three-phase user；
SIt is single-phase, maxFor the maximum apparent energy of single-phase user；PIt is single-phase, maxFor the maximum active power of single-phase user；SThree-phase, maxFor three-phase user
Maximum three-phase apparent energy；PThree-phase, maxFor the maximum three phases active power of three-phase user；PF is the power factor of user；
TDDi% is electric current total requirement aberration rate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018111391416 | 2018-09-28 | ||
| CN201811139141 | 2018-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109873498A true CN109873498A (en) | 2019-06-11 |
Family
ID=66920822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910212338.6A Pending CN109873498A (en) | 2018-09-28 | 2019-03-20 | A kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109873498A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571810A (en) * | 2019-09-18 | 2019-12-13 | 中国汽车工业工程有限公司 | Power quality treatment optimization method for low-voltage power distribution system of whole plant |
| CN110929897A (en) * | 2019-12-04 | 2020-03-27 | 国网上海市电力公司 | Resident distributed photovoltaic operation diagnosis system |
| CN114256876A (en) * | 2021-12-21 | 2022-03-29 | 青岛鼎信通讯股份有限公司 | Distributed photovoltaic inverter control strategy applied to low-voltage transformer area |
| CN115296304A (en) * | 2022-09-30 | 2022-11-04 | 国网山西省电力公司营销服务中心 | Low-voltage line terminal voltage management method based on distributed photovoltaic power supply array |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203289107U (en) * | 2013-03-11 | 2013-11-13 | 中国电力科学研究院 | Multi-access-point photovoltaic grid-connected system electrical energy quality and reactive power voltage coordination control device |
| CN103795059A (en) * | 2014-02-24 | 2014-05-14 | 国家电网公司 | Distributed photovoltaic power generation integrated control system |
| KR101419814B1 (en) * | 2014-04-04 | 2014-08-14 | (주)에이치에스쏠라에너지 | Smart connection board of solar energy generation system and measuring method of power generation efficiency of inverter using it |
| CN204216589U (en) * | 2014-11-07 | 2015-03-18 | 南京英纳瑞电气有限公司 | A kind of be used for that platform district is idle, the quality of power supply and efficiency composite control apparatus |
| CN106786585A (en) * | 2017-01-03 | 2017-05-31 | 国网安徽省电力公司电力科学研究院 | Based on the autonomous photovoltaic poverty alleviation rural power grids electric energy quality optimizing device and method of collaboration |
-
2019
- 2019-03-20 CN CN201910212338.6A patent/CN109873498A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203289107U (en) * | 2013-03-11 | 2013-11-13 | 中国电力科学研究院 | Multi-access-point photovoltaic grid-connected system electrical energy quality and reactive power voltage coordination control device |
| CN103795059A (en) * | 2014-02-24 | 2014-05-14 | 国家电网公司 | Distributed photovoltaic power generation integrated control system |
| KR101419814B1 (en) * | 2014-04-04 | 2014-08-14 | (주)에이치에스쏠라에너지 | Smart connection board of solar energy generation system and measuring method of power generation efficiency of inverter using it |
| CN204216589U (en) * | 2014-11-07 | 2015-03-18 | 南京英纳瑞电气有限公司 | A kind of be used for that platform district is idle, the quality of power supply and efficiency composite control apparatus |
| CN106786585A (en) * | 2017-01-03 | 2017-05-31 | 国网安徽省电力公司电力科学研究院 | Based on the autonomous photovoltaic poverty alleviation rural power grids electric energy quality optimizing device and method of collaboration |
Non-Patent Citations (2)
| Title |
|---|
| 朱明星: "光伏扶贫地区调压器提升低压配电网电能质量的应用研究", 《供用电》 * |
| 林海雪: "国外谐波电流限值标准介绍", 《供用电》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571810A (en) * | 2019-09-18 | 2019-12-13 | 中国汽车工业工程有限公司 | Power quality treatment optimization method for low-voltage power distribution system of whole plant |
| CN110929897A (en) * | 2019-12-04 | 2020-03-27 | 国网上海市电力公司 | Resident distributed photovoltaic operation diagnosis system |
| CN114256876A (en) * | 2021-12-21 | 2022-03-29 | 青岛鼎信通讯股份有限公司 | Distributed photovoltaic inverter control strategy applied to low-voltage transformer area |
| CN115296304A (en) * | 2022-09-30 | 2022-11-04 | 国网山西省电力公司营销服务中心 | Low-voltage line terminal voltage management method based on distributed photovoltaic power supply array |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yoldaş et al. | Enhancing smart grid with microgrids: Challenges and opportunities | |
| Bayindir et al. | Smart grid technologies and applications | |
| Kabalci et al. | From smart grid to internet of energy | |
| CN109873498A (en) | A kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic | |
| Abe et al. | Digital grid: Communicative electrical grids of the future | |
| Kabalci et al. | Introduction to smart grid architecture | |
| US20110093127A1 (en) | Distributed energy resources manager | |
| CN103187735B (en) | Bidirectional intelligent gateway device for distributed new energy grid connection | |
| Zhang et al. | Emerging smart grid technology for mitigating global warming | |
| KR101109187B1 (en) | Operation method for power system using real-time power information | |
| CN102570508A (en) | Methods and systems for controlling a power conversion system | |
| CN104538988A (en) | Voltage stability regulating system for distributed power connection and control method thereof | |
| Buccella et al. | An overview on distributed generation and smart grid concepts and technologies | |
| Ma et al. | An overview of energy routers | |
| Martins et al. | A Survey on Smart Grids: concerns, advances, and trends | |
| Kumar et al. | Design and implementation of wireless sensor network based smart DC grid for smart cities | |
| JP2011101566A (en) | Method for eliminating voltage imbalance of three-phase power distribution line and information processing apparatus used for this method | |
| Marquet et al. | DC power wide spread in Telecom/Datacenter and in home/office with renewable energy and energy autonomy | |
| CN106160003B (en) | Method of electric energy metering system of grid-connected wind-solar combined power generation system | |
| CN105071429A (en) | Feasibility analyzing method for accessing distributed power supplies into transformer station based on voltage deviation | |
| CN206302165U (en) | Cooperative control device and system for distributed energy | |
| Cali et al. | Smart grid applications and communication technologies | |
| Meliopoulos et al. | Smart grid infrastructure for distribution systems and applications | |
| Lakshminarayana | Smart grid technology & applications | |
| CN208046239U (en) | A kind of static reactive generator device with photovoltaic generation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20190611 |