CN104113058A - Method for calculating power distribution low-voltage line loss - Google Patents
Method for calculating power distribution low-voltage line loss Download PDFInfo
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- CN104113058A CN104113058A CN201310139864.7A CN201310139864A CN104113058A CN 104113058 A CN104113058 A CN 104113058A CN 201310139864 A CN201310139864 A CN 201310139864A CN 104113058 A CN104113058 A CN 104113058A
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—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 wired telecommunication networks or data transmission busses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The invention discloses a method for calculating power distribution low-voltage line loss. The method includes the following steps that: low-voltage large user intelligent terminals acquire electric power data at user sides and a common transformer side through voltage transformers and current transformers in real time and store the electric power data; the low-voltage large user intelligent terminals communicate with a common transformer district intelligent base station and transmit the electric power data to the common transformer district intelligent base station; the common transformer district intelligent base station stores the electric power data; the common transformer district intelligent base station communicates with a control center, and forwards the electric power data to the control center; and the control center calculates the electricity quantity of the user sides and the electricity quantity of the common transformer side according to the electric power data, and performs line loss calculation through utilizing a line loss calculation method. With the method of the invention adopted, one-to-one correspondence between the low-voltage large user intelligent terminals and users can be realized, and the electric power data at the user sides and the common transformer side can be acquired in real time, and can be processed in a unified manner through the control center, and line loss statistics can be further decomposed into multi-level electricity consumption regions.
Description
Technical field
The present invention relates to power domain, relate in particular to a kind of distribution low-voltage circuit line loss computational methods.
Background technology
Line loss is a very important integrated technology, the economic index of grid company, power supply administration, is also one of key factor affecting electric power enterprise productivity effect and running.
Tradition " quartile damages " management mainly for still 10kV and Above Transmission Lines, Gong Biantai district 0.4kV distribution line loss is also to carry out holistic management according to platform district, and often 0.4kV low-voltage distribution network is that line loss accounts for the largest percentage, it is also the part that lacks most direct management means and have greatest improvement space.Therefore the line loss in Gong Biantai district is added up, need by more advanced monitoring means, line loss statistics is further decomposed to multistage electricity consumption region, form the multistage line loss statistical analysis technique of " Gong Biantai district-outlet shunt-single-phase-terminal is loaded along separate routes ", according to detailed line loss data, analyze line loss data at different levels and proportion, accurately locate line loss reason, respectively for overload operation, three-phase load are uneven, tax evasion is electric and measure the various situations such as inaccurate, the line loss control measures that formulation becomes more meticulous, improve efficiency.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of distribution low-voltage circuit line loss computational methods are provided, by introducing low pressure large user intelligent terminal Ji Gongbiantai district intelligent base station, realize the corresponding one by one of low pressure large user intelligent terminal and user, can Real-time Collection user side and the electric power data of common transformer side, and unify aggregation process by control centre, line loss statistics is further decomposed to multistage electricity consumption region, form multistage line loss statistical analysis, effectively strengthen management through quantification, improve the accuracy of metering, line loss is calculated more accurate.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of distribution low-voltage circuit line loss computational methods, comprising: the common transformer in Wei Tai district configures a Tai Gongbiantai district intelligent base station; Each user in Wei Tai district configures respectively a low pressure large user intelligent terminal and a low-voltage distribution cabinet, and described low pressure large user's intelligent terminal and low-voltage distribution cabinet are parallel to be installed; In described low pressure large user's intelligent terminal, voltage transformer and current transformer are installed, the parallel access user of voltage transformer and current transformer and common transformer; Described low pressure large user's intelligent terminal is by described voltage transformer and current transformer Real-time Collection and store user's side and the electric power data of common transformer side, and described electric power data comprises real-time markers, three-phase voltage, three-phase current, three line voltages, zero-sequence current, negative-sequence current, residual voltage, active power, reactive power, power factor, active energy, capacity of idle power, mains frequency, Voltage unbalance degree, voltage deviation, voltage fluctuation, unbalanced power degree; Described low pressure large user's intelligent terminal Yu Gongbiantai district intelligent base station carries out communication, and described electric power data is sent to Gong Biantai district intelligent base station; Described Gong Biantai district intelligent base station is stored described electric power data; Described Gong Biantai district's intelligent base station and control centre carry out communication, and described electric power data is forwarded to control centre; User's side electric weight and common transformer side electric weight, according to described electric power data, calculate in described control centre, utilize line loss computational methods to carry out line loss calculating.
As the improvement of such scheme, described Gong Biantai district's intelligent base station and described low pressure large user's intelligent terminal and control centre carry out communication by carrier wave wireless mode and/or EPON optical fiber mode.
As the improvement of such scheme, described method of carrying out communication by carrier wave wireless mode comprises: described low pressure large user's intelligent terminal carries out communication by low pressure carrier wave mode and described Gong Biantai district intelligent base station; Described Gong Biantai district intelligent base station carries out communication by wireless mode and described control centre.
As the improvement of such scheme, described wireless mode is cdma wireless mode and/or GPRS wireless mode.
As the improvement of such scheme, described method of carrying out communication by EPON mode comprises: be described low pressure large user's intelligent terminal configuration optical node; For described Gong Biantai district intelligent base station configuration optical line terminal; Described optical node accesses described optical line terminal by optical splitter, realizes the communication between Gong Biantai district intelligent base station and low pressure large user intelligent terminal; By described optical line terminal and the access SDH of control centre optical fiber ring network, realize the communication between Gong Biantai district intelligent base station and control centre.
Improvement as such scheme, described Gong Biantai district intelligent base station, low pressure large user's intelligent terminal and control centre adopt hardware to master slave mode, make the clock synchronous error between described Gong Biantai district intelligent base station, low pressure large user's intelligent terminal and control centre be less than 1ms.
Implement the embodiment of the present invention, there is following beneficial effect:
Common transformer in Wei Tai district configures a Tai Gongbiantai district intelligent base station, each user in Wei Tai district configures respectively a low pressure large user intelligent terminal and a low-voltage distribution cabinet, and by described low pressure large user's intelligent terminal and the parallel installation of low-voltage distribution cabinet, wherein, in described low pressure large user's intelligent terminal, voltage transformer and current transformer are installed, the parallel access user of voltage transformer and current transformer and common transformer.During work, described low pressure large user's intelligent terminal is by described voltage transformer and current transformer Real-time Collection and store user's side and the electric power data of common transformer side, meanwhile, described electric power data is sent to Gong Biantai district intelligent base station and stores; Described Gong Biantai district intelligent base station is forwarded to control centre by described electric power data, and user's side electric weight and common transformer side electric weight, according to described electric power data, calculate in described control centre, utilize line loss computational methods to carry out line loss calculating.Therefore, by introducing low pressure large user intelligent terminal Ji Gongbiantai district intelligent base station, realize the corresponding one by one of low pressure large user intelligent terminal and user, can Real-time Collection user side and the electric power data of common transformer side, and unify aggregation process by control centre, line loss statistics is further decomposed to multistage electricity consumption region, effectively strengthen management through quantification, improve the accuracy of metering, form multistage line loss statistical analysis, line loss is calculated more accurate, had more referential.
In addition, described Gong Biantai district's intelligent base station and described low pressure large user's intelligent terminal and control centre carry out communication by carrier wave wireless mode and/or EPON optical fiber mode.Wherein, carrier wave wireless mode cost is lower, easy for installation, and EPON optical fiber mode can realize the efficient high-speed of communication, the real-time of data, reliability are high.Therefore, can adopt communication to carry out communication according to realizing demand, flexibility be high, effectively realizes information sharing.
Correspondingly, adopt hardware to master slave mode, make the clock synchronous error between described Gong Biantai district intelligent base station, low pressure large user's intelligent terminal and control centre be less than 1ms, guaranteed real-time, the reliability of data.
Accompanying drawing explanation
Fig. 1 is the overall framework figure of each device in a kind of distribution low-voltage circuit of the present invention line loss computational methods;
Fig. 2 is the flow chart of a kind of distribution low-voltage circuit of the present invention line loss computational methods;
Fig. 3 is the structural representation that in a kind of distribution low-voltage circuit of the present invention line loss computational methods, each device carries out communication by carrier wave wireless mode;
Fig. 4 is the structural representation that in a kind of distribution low-voltage circuit of the present invention line loss computational methods, each device carries out communication by EPON optical fiber mode;
Fig. 5 is that in a kind of distribution low-voltage circuit of the present invention line loss computational methods, each device carries out communication structure schematic diagram by carrier wave wireless mode and EPON optical fiber mode.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the overall framework figure of each device in a kind of distribution low-voltage circuit of the present invention line loss computational methods.
As shown in Figure 1, need the common transformer 3 configuration one Tai Gongbiantai district intelligent base stations 4 in Wei Tai district.Owing to being provided with a common transformer 3 in each district, each district need arrange a Tai Gongbiantai district intelligent base station 4.
It should be noted that, Gong Biantai district intelligent base station 4 adopts advanced technical grade chip, and electrical isolation and design of Electromagnetic Shielding meet international standard, the anti-lightning strike design of all ports, 2500VDC surge protection is provided, and hardware system has high antijamming capability and functional reliability; Adopt complex programmable logic device (CPLD) technology, simplify the design of circuit board, improve stability; Main chip adopts mounting technology, and circuit board adopts four laminate designs, has improved stability; CPU adopts the ARM9 of technical grade, and speed reaches 200MIPS, and stable performance, configuration are flexible, expand and the potentiality of upgrading large, strengthened disposal ability and the extensibility of system.
As shown in Figure 1, each user 1 in Wei Tai district configures respectively a low pressure large user intelligent terminal 2 and a low-voltage distribution cabinet, and described low pressure large user's intelligent terminal 2 and low-voltage distribution cabinet are parallel to be installed, in low pressure large user's intelligent terminal 2 access low-voltage distribution cabinets.Low pressure large user's intelligent terminal 2, low-voltage distribution cabinet and user are corresponding one by one, user can a corresponding low pressure large user intelligent terminal 2 and a low-voltage distribution cabinet, correspondingly, a low pressure large user intelligent terminal 2 can a corresponding low-voltage distribution cabinet and a user.
For example, have 4 users in Ruo Tai district, correspondingly, platform district domestic demand arranges 4 low pressure large user intelligent terminals and 4 low-voltage distribution cabinets.
Wherein, in described low pressure large user's intelligent terminal 2, voltage transformer and current transformer are installed, the parallel access user 1 of voltage transformer and current transformer and common transformer 3.
During work, described low pressure large user's intelligent terminal 2 can be by the electric power data of described voltage transformer and current transformer Real-time Collection user's side and common transformer side.
Fig. 2 is the flow chart of a kind of distribution low-voltage circuit of the present invention line loss computational methods, comprising:
S100, described low pressure large user's intelligent terminal is by described voltage transformer and current transformer Real-time Collection and store user's side and the electric power data of common transformer side.
Described electric power data comprises real-time markers, three-phase voltage, three-phase current, three line voltages, zero-sequence current, negative-sequence current, residual voltage, active power, reactive power, power factor, active energy, capacity of idle power, mains frequency, Voltage unbalance degree, voltage deviation, voltage fluctuation, unbalanced power degree etc.
It should be noted that, during low pressure large user's intelligent terminal store power data, preserve according to cycle regular hour (1 minute to 60 minutes etc.), at least can circulate and preserve the historical data in a week.
S101, described low pressure large user's intelligent terminal Yu Gongbiantai district intelligent base station carries out communication, and described electric power data is sent to Gong Biantai district intelligent base station.
S102, described Gong Biantai district intelligent base station is stored described electric power data.
It should be noted that, Gong Biantai district intelligent base station possesses long-term localization data memory function, and electric power data is not lost in the situation that communication network interrupts, and in the situation that communication network recovers, upwards resumes data.
S103, described Gong Biantai district's intelligent base station and control centre carry out communication, and described electric power data is forwarded to control centre.
S104, user's side electric weight and common transformer side electric weight, according to described electric power data, calculate in described control centre, utilize line loss computational methods to carry out line loss calculating.
It should be noted that, control centre possesses three large functions of data center, market demand, data exhibiting: data center, the electric power data in picking platform district, sets up the unified electricity consumption of standardization data center.Market demand, carries out statistical analysis and comparative analysis to electric power data, and introduces and optimize parser, and electricity consumption reliability, power quality, electricity consumption economy are optimized, and makes electricity consumption aid decision.Data exhibiting, adopts various ways to show inquiry to electric power data, comprises real-time history curve, and B/S browses, group financial statements etc.
User's side electric weight and common transformer side electric weight, when carrying out line loss calculating, calculate according to electric power data in control centre, and user's side electric weight and common transformer side electric weight are compared, and utilize line loss computational methods to carry out line loss calculating.Because electric power data is specific to each user, therefore, clear the reflecting of power-steeling quantity being mixed in line loss can be analyzed to stealing degree, to each user analysis that becomes more meticulous.
Preferably, described line loss computational methods comprise rms current method, power integral method.
During work, low pressure large user's intelligent terminal is by voltage transformer and current transformer Real-time Collection and store user's side and the electric power data of common transformer side, meanwhile, described electric power data is sent to Gong Biantai district intelligent base station; Described Gong Biantai district intelligent base station is received after circuit data, electric power data is stored and is forwarded to control centre; User's side electric weight and common transformer side electric weight, according to described electric power data, calculate in described control centre, utilize line loss computational methods to carry out line loss calculating.Therefore, by introducing low pressure large user intelligent terminal Ji Gongbiantai district intelligent base station, realize the corresponding one by one of low pressure large user intelligent terminal and user, can Real-time Collection user side and the electric power data of common transformer side, and unify aggregation process by control centre, line loss statistics is further decomposed to multistage electricity consumption region, form multistage line loss statistical analysis, effectively strengthen management through quantification, improve the accuracy of metering, line loss is calculated more accurate, had more referential.
More preferably, described Gong Biantai district's intelligent base station and described low pressure large user's intelligent terminal and control centre carry out communication by carrier wave wireless mode and/or EPON optical fiber mode.
It should be noted that, Gong Biantai district intelligent base station has flexible and varied communication interface, can realize carrier wave wireless mode or EPON optical fiber mode is carried out communication.
More preferably, described Gong Biantai district intelligent base station, low pressure large user's intelligent terminal and control centre adopt hardware to master slave mode, make the clock synchronous error between described Gong Biantai district intelligent base station, low pressure large user's intelligent terminal and control centre be less than 1ms.
Fig. 3 is the structural representation that in a kind of distribution low-voltage circuit of the present invention line loss computational methods, each device carries out communication by carrier wave wireless mode.
As shown in Figure 3, described method of carrying out communication by carrier wave wireless mode comprises:
Described low pressure large user's intelligent terminal 2 carries out communication by low pressure carrier wave mode and described Gong Biantai district intelligent base station 4.
Described Gong Biantai district intelligent base station 4 carries out communication by wireless mode and described control centre 5.
During work, low pressure large user's intelligent terminal 2 is by voltage transformer and current transformer Real-time Collection and store the electric power data of user 1 and common transformer.Low pressure large user's intelligent terminal 2 is sent to Gong Biantai district intelligent base station 4 by low pressure carrier wave mode by described electric power data.Described Gong Biantai district intelligent base station 4 is received after circuit data, store power data, and by wireless mode, electric power data is forwarded to control centre 5.User's side electric weight and common transformer side electric weight, according to described electric power data, calculate in described control centre 5, utilize line loss computational methods to carry out line loss calculating.
More preferably, described wireless mode is cdma wireless mode and/or GPRS wireless mode.
Fig. 4 is the structural representation that in a kind of distribution low-voltage circuit of the present invention line loss computational methods, each device carries out communication by EPON optical fiber mode.
As shown in Figure 4, described method of carrying out communication by EPON mode comprises:
For described low pressure large user's intelligent terminal 2 configuration optical nodes 6, low pressure large user's intelligent terminal 2 is corresponding one by one with optical node 6.
For described Gong Biantai district intelligent base station 4 configuration optical line terminals 8, Gong Biantai district intelligent base station 4 is corresponding one by one with optical line terminal 8.
Described optical node 6, by the described optical line terminal 8 of optical splitter 7 access, is realized the communication of 2 of Gong Biantai district intelligent base station 4 and low pressure large user intelligent terminals.
By described optical line terminal 8 and control centre 5 access SDH optical fiber ring networks, realize between Gong Biantai district intelligent base station 4 and control centre 5 communication.
During work, low pressure large user's intelligent terminal 2 is by voltage transformer and current transformer Real-time Collection and store the electric power data of user 1 and common transformer.Electric power data by optical node 6, optical splitter 7, optical line terminal 8, is sent to Gong Biantai district intelligent base station 4 by low pressure large user intelligent terminal 2 successively.Described Gong Biantai district intelligent base station 4 is received after circuit data, store power data, and by optical line terminal 8, electric power data is forwarded to SDH optical fiber ring network.Electric power data transfers to control centre 5 through SDH optical fiber ring network, and user's side electric weight and common transformer side electric weight, according to described electric power data, calculate in described control centre 5, utilize line loss computational methods to carry out line loss calculating.
Fig. 5 is that in a kind of distribution low-voltage circuit of the present invention line loss computational methods, each device carries out communication structure schematic diagram by carrier wave wireless mode and EPON optical fiber mode.
As shown in Figure 5, comprise platform district A Ji Tai district B.During work, platform district A carries out communication by carrier wave wireless mode, and low pressure large user's intelligent terminal 2 is by voltage transformer and current transformer Real-time Collection and store the electric power data of user 1 and common transformer; Low pressure large user's intelligent terminal 2 is sent to Gong Biantai district intelligent base station 4 by low pressure carrier wave mode by described electric power data; Described Gong Biantai district intelligent base station 4 is received after circuit data, store power data, and by wireless mode, electric power data is forwarded to control centre 5.Meanwhile, platform district B carries out communication by EPON mode, and low pressure large user's intelligent terminal 2 is by voltage transformer and current transformer Real-time Collection and store the electric power data of user 1 and common transformer; Electric power data by optical node 6, optical splitter 7, optical line terminal 8, is sent to Gong Biantai district intelligent base station 4 by low pressure large user intelligent terminal 2 successively; Described Gong Biantai district intelligent base station 4 is received after circuit data, store power data, and by optical line terminal 8, electric power data is forwarded to SDH optical fiber ring network, electric power data transfers to control centre 5 through SDH optical fiber ring network.Finally, the electric power data that described control centre 5 uploads according to Suo Tai district A Ji Tai district B, in computer board district A Ji Tai district B, user's side electric weight and common transformer side electric weight, utilize line loss computational methods to carry out line loss calculating.
As from the foregoing, by introducing low pressure large user intelligent terminal 2 Ji Gongbiantai district intelligent base stations 4, realize the corresponding one by one of low pressure large user intelligent terminal 2 and user 1, can Real-time Collection user 1 and the electric power data of common transformer 3, and unify aggregation process by control centre 5, line loss statistics is further decomposed to multistage electricity consumption region, effectively strengthen management through quantification, improve the accuracy of metering, form multistage line loss statistical analysis, line loss is calculated more accurate, had more referential.In addition, described Gong Biantai district intelligent base station 4 carries out communication with described low pressure large user's intelligent terminal 2 and control centre 5 by carrier wave wireless mode and/or EPON optical fiber mode.Wherein, carrier wave wireless mode cost is lower, easy for installation, and EPON optical fiber mode can realize the efficient high-speed of communication, the real-time of data, reliability are high.Therefore, can adopt communication to carry out communication according to realizing demand, flexibility be high, effectively realizes information sharing.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (6)
1. distribution low-voltage circuit line loss computational methods, is characterized in that, comprising:
Common transformer in Wei Tai district configures a Tai Gongbiantai district intelligent base station;
Each user in Wei Tai district configures respectively a low pressure large user intelligent terminal and a low-voltage distribution cabinet, and described low pressure large user's intelligent terminal and low-voltage distribution cabinet are parallel to be installed;
In described low pressure large user's intelligent terminal, voltage transformer and current transformer are installed, the parallel access user of voltage transformer and current transformer and common transformer;
Described low pressure large user's intelligent terminal is by described voltage transformer and current transformer Real-time Collection and store user's side and the electric power data of common transformer side, and described electric power data comprises real-time markers, three-phase voltage, three-phase current, three line voltages, zero-sequence current, negative-sequence current, residual voltage, active power, reactive power, power factor, active energy, capacity of idle power, mains frequency, Voltage unbalance degree, voltage deviation, voltage fluctuation, unbalanced power degree;
Described low pressure large user's intelligent terminal Yu Gongbiantai district intelligent base station carries out communication, and described electric power data is sent to Gong Biantai district intelligent base station;
Described Gong Biantai district intelligent base station is stored described electric power data;
Described Gong Biantai district's intelligent base station and control centre carry out communication, and described electric power data is forwarded to control centre;
User's side electric weight and common transformer side electric weight, according to described electric power data, calculate in described control centre, utilize line loss computational methods to carry out line loss calculating.
2. distribution low-voltage circuit line loss computational methods as claimed in claim 1, is characterized in that, described Gong Biantai district's intelligent base station and described low pressure large user's intelligent terminal and control centre carry out communication by carrier wave wireless mode and/or EPON optical fiber mode.
3. distribution low-voltage circuit line loss computational methods as claimed in claim 2, is characterized in that, described method of carrying out communication by carrier wave wireless mode comprises:
Described low pressure large user's intelligent terminal carries out communication by low pressure carrier wave mode and described Gong Biantai district intelligent base station;
Described Gong Biantai district intelligent base station carries out communication by wireless mode and described control centre.
4. distribution low-voltage circuit line loss computational methods as claimed in claim 3, is characterized in that, described wireless mode is cdma wireless mode and/or GPRS wireless mode.
5. distribution low-voltage circuit line loss computational methods as claimed in claim 2, is characterized in that, described method of carrying out communication by EPON mode comprises:
For described low pressure large user's intelligent terminal configuration optical node;
For described Gong Biantai district intelligent base station configuration optical line terminal;
Described optical node accesses described optical line terminal by optical splitter, realizes the communication between Gong Biantai district intelligent base station and low pressure large user intelligent terminal;
By described optical line terminal and the access SDH of control centre optical fiber ring network, realize the communication between Gong Biantai district intelligent base station and control centre.
6. distribution low-voltage circuit line loss computational methods as claimed in claim 1, it is characterized in that, described Gong Biantai district intelligent base station, low pressure large user's intelligent terminal and control centre adopt hardware to master slave mode, make the clock synchronous error between described Gong Biantai district intelligent base station, low pressure large user's intelligent terminal and control centre be less than 1ms.
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| CN105158601A (en) * | 2015-08-19 | 2015-12-16 | 国家电网公司 | Electricity utilization information acquisition system-based hand-in-hand line loss rate automatic calculation method |
| CN105807126A (en) * | 2016-04-28 | 2016-07-27 | 四川瑞霆电力科技有限公司 | Overhead distribution line zero-sequence current acquisition terminal and method based on clock synchronization |
| CN108414886A (en) * | 2018-01-11 | 2018-08-17 | 国网江苏省电力有限公司连云港供电分公司 | A kind of mutual table method of power distribution network |
| CN108490285A (en) * | 2018-02-12 | 2018-09-04 | 北京合众伟奇科技有限公司 | A kind of low-voltage platform area line loss per unit computational methods based on fall of potential method |
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| CN110456140A (en) * | 2019-08-20 | 2019-11-15 | 国网安徽省电力有限公司淮南供电公司 | A kind of platform area line loss exception monitoring system based on wireless camera |
| CN110940872A (en) * | 2019-11-02 | 2020-03-31 | 国网上海市电力公司 | Method for analyzing structure and parameters of residential building low-voltage power distribution system by collecting data through HPLC |
| CN110940872B (en) * | 2019-11-02 | 2022-06-21 | 国网上海市电力公司 | Method for analyzing structure and parameters of residential building low-voltage power distribution system by collecting data through HPLC |
| CN111125608A (en) * | 2019-11-14 | 2020-05-08 | 国网浙江海宁市供电有限公司 | Theoretical line loss estimation method based on summoning and testing data |
| CN111125608B (en) * | 2019-11-14 | 2023-05-05 | 国网浙江海宁市供电有限公司 | Theoretical line loss estimation method based on call data |
| CN116264403A (en) * | 2022-12-28 | 2023-06-16 | 国网浙江省电力有限公司桐乡市供电公司 | Comprehensive treatment method for low-voltage distribution network accessed by large-scale distributed photovoltaic |
| CN116264403B (en) * | 2022-12-28 | 2024-03-26 | 国网浙江省电力有限公司桐乡市供电公司 | Comprehensive treatment method for low-voltage distribution network accessed by large-scale distributed photovoltaic |
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