CN103645363A - Two-way metering three-phase intelligent electric energy meter - Google Patents
Two-way metering three-phase intelligent electric energy meter Download PDFInfo
- Publication number
- CN103645363A CN103645363A CN201310674698.0A CN201310674698A CN103645363A CN 103645363 A CN103645363 A CN 103645363A CN 201310674698 A CN201310674698 A CN 201310674698A CN 103645363 A CN103645363 A CN 103645363A
- Authority
- CN
- China
- Prior art keywords
- contact unit
- phase
- energy meter
- control end
- electric
- 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.)
- Granted
Links
Images
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a two-way metering three-phase intelligent electric energy meter comprising an input front end, an output back end, a three-phase measurement module, a built-in power relay, a first control end and a second control end. The input front end is connected with a three-phase mains supply grid. The output back end is in parallel connection with a first contactor unit and a second contactor unit respectively. The three-phase measurement module and the built-in power relay are connected between the input front end and the output back end. The first control end is connected with the first contactor unit, and the second control end is connected with the second contactor unit. The first control end or the second control end sends control information to the first contactor unit or the second contactor unit and controls the connection or disconnection of the first contactor unit or the second contactor unit. According to the two-way metering three-phase intelligent electric energy meter, through the two-way metering technology, the conventional double-meter type grid-connected metering mode is solved, the functions of intelligent data acquisition, parameter management and the like can be integrated at the same time, and the two-way metering three-phase intelligent electric energy meter is an ideal two-way metering intelligent meter scheme of family distributed energy generation grid connection.
Description
Technical field
The present invention relates to familial distribution of cases formula energy electricity generation grid-connecting technical field, relate in particular to a kind of bidirectional measuring three-phase intelligent electric-energy meter.
Background technology
At present, for familial distribution of cases formula energy electricity generation grid-connecting, generally there are two kinds of ways, a kind of is grid-connected scheme under " rate for incorporation into the power network; unified purchase and sale " policy, this way be by PV ammeter before electric supply meter (being electrical network one side), need to take two grid-connected metered scheme of ammeter.Another kind is the grid-connected scheme under " clean electric quantity metering " policy, and this scheme long period measures generating electric weight and the consumption electric weight in distributed power station.For above-mentioned two kinds of grid-connected schemes of metering, all need to adopt two ammeter meterings.And adopt the not only cost increase of two ammeters, and space requirement is also larger, has increased failure rate simultaneously, has improved maintenance cost.
Summary of the invention
Based on this, the invention provides a kind of bidirectional measuring three-phase intelligent electric-energy meter.
A bidirectional measuring three-phase intelligent electric-energy meter, comprises input front end, output rear end, three phase metering module, built-in power relay, the first control end and the second control end; Described input front end connects three-phase mains net, described output rear end connects respectively the first contact unit and the second contact unit in parallel, wherein, described the first contact unit connects distributed energy power generating network, and described the second contact unit connects threephase load; Between described input front end and output rear end, be connected with described three phase metering module and described built-in power relay, described three phase metering module is for measuring the electric weight of flowing through;
Described the first control end connects described the first contact unit, described the second control end connects described the second contact unit, described the first control end or described the second control end send control information to described the first contact unit or described the second contact unit, control closure and the disconnection of described the first contact unit or described the second contact unit.
Compare with general technology, the present invention by bidirectional measuring technology, has solved the grid-connected metering method of conventional double-ammeter type, simultaneously can integrated intelligent data acquisition, the functions such as parameter management are the desirable bidirectional measuring intelligent meter schemes of familial distribution of cases formula energy electricity generation grid-connecting.It is grid-connected that the present invention adopts the intelligent electric energy meter of bidirectional measuring technology to carry out, and electric energy meter can be configured to the metering method of algebraic sum metering method or absolute value, has meritorious forward, oppositely meritorious, idle forward, the function of idle reverse metering.During bidirectional measuring, only need to adopt an ammeter metering, provide cost savings and space, reduce failure rate.The present invention simultaneously can realize system management function; electric energy meter and Blast Furnace Top Gas Recovery Turbine Unit (TRT) inversion, protection master control system realize communication; carry out data interaction; not only data can be reported to main station system; be beneficial to partial power management; and can open portion function to user, realize power department and user's condominium.
Accompanying drawing explanation
Fig. 1 is the structural representation of bidirectional measuring three-phase intelligent electric-energy meter of the present invention when grid-connected;
Fig. 2 is the structural representation of a preferred embodiment of bidirectional measuring three-phase intelligent electric-energy meter of the present invention;
Fig. 3 is the workflow schematic diagram of bidirectional measuring three-phase intelligent electric-energy meter of the present invention.
Embodiment
For further setting forth the technological means that the present invention takes and the effect obtaining, below in conjunction with accompanying drawing and preferred embodiment, to technical scheme of the present invention, know and complete description.
Bidirectional measuring three-phase intelligent electric-energy meter of the present invention, comprises input front end, output rear end, three phase metering module, built-in power relay, the first control end and the second control end; Described input front end connects three-phase mains net, described output rear end connects respectively the first contact unit and the second contact unit in parallel, wherein, described the first contact unit connects distributed energy power generating network, and described the second contact unit connects threephase load; Between described input front end and output rear end, be connected with described three phase metering module and described built-in power relay, described three phase metering module is for measuring the electric weight of flowing through;
Described the first control end connects described the first contact unit, described the second control end connects described the second contact unit, described the first control end or described the second control end send control information to described the first contact unit or described the second contact unit, control closure and the disconnection of described the first contact unit or described the second contact unit.
Referring to Fig. 1, is the structural representation of bidirectional measuring three-phase intelligent electric-energy meter of the present invention when grid-connected.
Described input front end connects three-phase and four-line utility grid, three-phase and four-line electrical network access three-phase intelligent electric-energy meter, ammeter output rear end is by contact unit two (i.e. the second contact unit, lower same) access user load end, electric energy meter is controlled i.e. the second control end of 2(simultaneously) can export control information control contactor unit two, can realize closure and the disconnection of contactor, user load end and front end are cut off.Another electric energy meter output rear end access in parallel contact unit one (the first contact unit, lower same), inversion, the master control system of contact unit one rear end access Blast Furnace Top Gas Recovery Turbine Unit (TRT), the rear end of inversion master control system is in access Blast Furnace Top Gas Recovery Turbine Unit (TRT).I.e. the first control end of 1(is controlled in electric energy meter output) can export control information, control contactor device unit one, realizes closure and the disconnection of contact unit, and distributed energy power generating network and front end electrical network are disconnected.In addition, electric energy meter can be realized data communication by 485 communications and Blast Furnace Top Gas Recovery Turbine Unit (TRT), the information exchanges such as relevant real time data are crossed to the main station system that electric energy meter reports power department, and develop partial function and realize power department and user's condominium, can obtain technical guarantee.Be beneficial to the management of the safety problems such as island effect simultaneously, strengthen power grid security, personal safety and electric appliance safety while ensureing grid maintenance.
Preferably, described built-in power relay is for realizing the disconnection and closure of three-phase mains net.The magnetic latching relay that described built-in power relay is 120A.
Preferably, described the first contact unit connects the inversion master control system in distributed energy power generating network, and described inversion master control system connects the Blast Furnace Top Gas Recovery Turbine Unit (TRT) in distributed energy power generating network.
As one of them embodiment, when three-phase mains net is powered to threephase load separately, described built-in electric power relay closes, described the first control end sends control information to described the first contact unit, controlling described the first contact unit disconnects, described the second control end sends control information to described the second contact unit, controls described the second contact unit closed.
When the independent powering load of utility grid, the built-in electric power relay closes of three-phase electric energy meter, electric energy meter control contactor unit one, contactor disconnects distributed energy power generating network is disconnected, simultaneously control contactor unit two, contactor closure accesses electrical network by load end, now, only have electrical network powering load, direction of current is forward, the metering of electric energy meter forward, load end is consumed how many electric weight can all be measured.
As one of them embodiment, when distributed energy power generating network is powered to threephase load separately, described built-in power relay disconnects, described the first control end sends control information to described the first contact unit, control described the first contact unit closed, described the second control end sends control information to described the second contact unit, controls described the second contact unit closed.
When the independent powering load of distributed energy power generating network, the built-in power relay of three-phase electric energy meter disconnects, electric energy meter control contactor unit one, and contactor closure accesses power generating network.While control contactor unit two, contactor closure accesses power generating network by load end, realizes the independent powering load of power generating network.
As one of them embodiment, when whole electric weight of distributed energy power generating network are supplied with to three-phase mains net, described built-in electric power relay closes, described the first control end sends control information to described the first contact unit, control described the first contact unit closed, described the second control end sends control information to described the second contact unit, controls described the second contact unit and disconnects.
When the whole electric weight of power generating network are supplied with to utility grid, the built-in electric power relay closes of three-phase electric energy meter, electric energy meter control contactor unit one, contactor closure accesses power generating network.While control contactor unit two, contactor disconnects load end is disconnected, and realizes the whole electric weight of power generating network and supplies with utility grid.Now, electric energy meter is controlled Blast Furnace Top Gas Recovery Turbine Unit (TRT) master control system, makes power generating network electrical quantity meet grid-connected requirement, just allows grid-connected.Electrical energy meter electricity flow path direction is that oppositely electric energy meter oppositely measures, and power generating network can all measure to the electric weight of utility grid confession.
As one of them embodiment, when the generated energy of distributed energy power generating network is greater than the consumes power of threephase load, when distributed energy power generating network is given threephase load and three-phase mains net power supply simultaneously, described built-in electric power relay closes, described the first control end sends control information to described the first contact unit, control described the first contact unit closed, described the second control end sends control information to described the second contact unit, controls described the second contact unit closed.
When generated energy is greater than consumption electric weight, when powering to load end, power generating network powers to utility grid, the built-in electric power relay closes of three-phase electric energy meter, electric energy meter control contactor unit one, contactor closure accesses power generating network.While control contactor unit two, contactor closure accesses power generating network by load end, realizes when power generating network is powered to load end and powering to utility grid.Now, electric energy meter is controlled Blast Furnace Top Gas Recovery Turbine Unit (TRT) master control system, makes power generating network electrical quantity meet grid-connected requirement, just allows grid-connected.Because consumption electric weight is less than generated energy, the unnecessary electric weight of power generating network has also been supplied with utility grid, and electrical energy meter electricity flow path direction is that oppositely electric energy meter oppositely measures, and power generating network can all measure to the electric weight of utility grid confession.
As one of them embodiment, when the generated energy of distributed energy power generating network is less than the consumes power of threephase load, when distributed energy power generating network and three-phase mains net are powered to threephase load simultaneously, described built-in electric power relay closes, described the first control end sends control information to described the first contact unit, control described the first contact unit closed, described the second control end sends control information to described the second contact unit, controls described the second contact unit closed.
When generated energy is less than consumption electric weight, when power generating network is powered to load end, utility grid is also powered to load end, the built-in electric power relay closes of three-phase electric energy meter, and electric energy meter control contactor unit one, contactor closure accesses power generating network.While control contactor unit two, contactor closure accesses electrical network by load end, realizes power generating network, and utility grid is powered to load end simultaneously.Now, electric energy meter is controlled Blast Furnace Top Gas Recovery Turbine Unit (TRT) master control system, makes power generating network electrical quantity meet grid-connected requirement, just allows grid-connected.Because consumption electric weight is more than generated energy, utility grid is for the inadequate electric weight of a part, and electrical energy meter electricity flow path direction is forward to, electric energy meter forward metering, and utility grid can all measure to the electric weight of load end confession.
When Dang He Utilities Electric Co. settles accounts, if the clearing of " rate for incorporation into the power network; the unified purchase and sale " policy of employing, only need to take the form of clearness allowance to sell Utilities Electric Co. reverse electric weight (being the electric weight of distributed energy power generating network confession), forward electric weight (consuming electric weight) is according to normal price charging.So just can realize the electric weight clearing under " rate for incorporation into the power network, unified purchase and sale " policy.
If adopt " electric weight only " policy clearing, only reverse electric weight (being the electric weight of distributed energy power generating network confession) and forward electric weight (consuming electric weight) need to be done to algebraic sum calculating, exactly power generating network is supplied with to utility grid and take out with consumption electric weight.So just can realize the electric weight clearing under clean electric weight plan.
The intelligent electric energy meter of this programme is the wide-range three-phase electric energy meter based on Luo-coil Sampling techniques, with conventional electric energy meter comparison, there is voltage power supply wide ranges (phase voltage AC45V～300V), current measurement broad quantum (5～100A), super wide temperature working range (40 ℃～+ 70 ℃), low-temperature-rise, error is stable, anti-strong magnetic, the advantages such as anti-DC component.
When realizing bidirectional measuring three-phase intelligent electric-energy meter of the present invention, can be set as follows requirement to parameters of electric energy meter:
Parameters of electric energy meter: measuring voltage scope: 3 * 45V～300V(phase voltage); Amount is measured electric current: 5A; Maximum electric current: the 100A that measures; Specified survey frequency: 50Hz; Class of accuracy: meritorious class1, idle class2; Meter constant: meritorious 1000imp/KWh, idle 1000imp/Kvarh; Operating temperature range :-40 ℃～+ 70 ℃; The mode of connection: three-phase and four-line; Table access way: direct access
Electric energy meter performance requirement: starting current: 0.2%Ib; Shunt running: when electric energy meter is applied to specified measuring voltage, 0.1%Ib, rated operational voltage, should not measure; The class of insulation: 4000V ac; Dustproof and waterproof grade: IP54; Power consumption: 1W(is not with GPRS module);
Product function requires:
Electric energy metrical pattern: support many rates metering method; There is forward and reverse metering method; Configurable algebraic sum metering method; Configurable absolute value metering method;
Electric parameter instantaneous value: instantaneous voltage; Momentary current; Instantaneous frequency; Instantaneous power;
Fault detect: CPU operation irregularity; Storage failure; Metering link is abnormal;
Communication interface: the compatible PLC module of GPRS module; RS485 communication; Photoelectricity communication; MBUS communication;
Pulse output interface: LED pulse output, meets IEC standard; Electric pulse output, meets IEC standard;
Structural Design Requirement: the direct-type mode of connection; Physical dimension meets state's net three-phase intelligent list structure standard; Lead sealing adds anti-theft screw; Degree of protection: IP54; It is accurate that Anti-vibration Design meets state's network mark; Electro Magnetic Compatibility meets state and nets intelligent three-phase meter standard.
For hardware, realize, preferred, hardware circuit can be comprised of following part: power management, electric quantity acquisition, data processing, communication module, man-machine interface etc.Specifically can consult Fig. 2, be the structural representation of a preferred embodiment of bidirectional measuring three-phase intelligent electric-energy meter of the present invention.
Power management part, power management part is mainly by switching power source chip, to realize exchanging turning direct current, for the power supply of ammeter internal work, power can reach 10W, can guarantee the maximum functional need for electricity of this design.
Adopt the efficient AD-DC switching power source chip that model is TOP258, maximum power output can reach 10W, av eff is more than 80%, there is super wide voltage power supply scope, main circuit unit is supplied with in main road output, auxiliary output supplying module and communication interface circuit, assist out-put supply and exchange satisfied isolation 4000V requirement of withstand voltage between input.
Electric quantity acquisition part: voltage sample is by high-accuracy, and Low Drift Temperature resistance pressure-dividing network carries out voltage sample, and by RC filtering, voltage sampling signal is sent into three phase metering chip.Current sample carries out current sample by high-performance Luo-coil, and by RC filtering, current sampling signal is sent into three phase metering chip.Computation chip adopts the IDT90E36 three-phase electrical energy computation chip of IDT company, and this is a high precision three phase metering chip, can measuring circuit voltage, electric current, and frequency.Can calculate active power, reactive power, applied power and instantaneous rms voltage, electric current.Embedded 72 independent rank sigma-delta ADC, can realize three voltage path (A, B and C phase) and four current paths (A, B, C phase and center line) in three-phase four wire system, support neutral line current to measure, stealing detects.Additional channel is integrated complete signal path, the various measurements of permission execution.Each input channel is all supported independent and gain stage flexibly, so this device is applicable to using together with various current sensors, as Luo-coil, and current transformer (CT) and low resistance shunt resistance etc.Three phase metering chip can, by metering register in SPI communication interface access sheet, be realized reading of related data, electric energy meter calibration.The data processing of three phase metering chip is selected 32 arm processor STM32L151VD of ST company, low in energy consumption based on ARM@Cortex TM-M3 kernel, power-down mode, is applicable to very much battery powered application.Have fast operation, the features such as low-power consumption, have guaranteed to gather the real-time of electrical network information about power and communication.Main control chip is mainly responsible for the management of peripheral modules circuit.
Communication module part: GPRS module, be mainly responsible for and the upstream plant such as concentrator and data acquisition unit between exchanges data, real time data is sent to main station system, and realizes the associative operation of main website to electric energy meter.PLC module and GPRS module interface compatibility are replaceable, are mainly the exchanges data of being responsible for by the realization of power circuit carrier communication and collector, realize the data reading system of collector etc.Photoelectricity communication mainly realizes host computer directly and the communication of electric energy meter, realizes electric weight, the copy reading of real time data, the configuration of other funtion parts etc.RS485 interface is mainly realized, the cascade between electric energy meter, exchanges data, the data reading system of collector etc.RS485 communication modes between this programme compatibility and the inversion of distributed energy Blast Furnace Top Gas Recovery Turbine Unit (TRT) simultaneously, protection master control system; can realize electric network data shares; realize the master control system operation of electric energy meter to Blast Furnace Top Gas Recovery Turbine Unit (TRT), the management of main station system to electricity generation system, the protection of island effect etc.The meter bus bus interface of the compatible international standard of MBUS communication can realize the water meter to compatible MBUS interface, gas meter, and the copy reading of hotlist, realizes the intelligent management of familial distribution of cases formula energy scheme.
Data processing: adopt the eeprom memory of a slice 256K bit to realize calibration data, the storage of ammeter relevant configuration information.
Adopt the ferroelectric memory of a slice 64K bit for the significant data of storing electricity and so on.Adopt the dataflash of a slice 16Mbit for the storage of load curve, firmware remote upgrade.
Man-machine interface: liquid crystal display adopts the segment liquid crystal of 160 sections, and the demonstration of liquid crystal drives chip to realize by special liquid crystal.Ammeter has 2 aobvious buttons of wheel, and one of them is that programming key can pin in lead sealing.In addition, ammeter has game clock lid and detects button, beginning lid button.
Other parts circuit: the magnetic latching relay of the built-in a 120A of ammeter, for operating a switch, realize the disconnection of electrical network.Ammeter has 2 tunnels and controls output, for controlling the cut-out of external contactor unit, closure.Ammeter plate carries a slice magnetic induction chip, for detection of external magnetic field, realizes the detection of strong magnetic stealing.Ammeter adopts a slice hardware RTC chip as the clock unit of ammeter.Ammeter is also built-in hardware watchdog chip, to guarantee the stable operation of system.
For software, realize part, adopt the mutual single-threaded software flow of AM/BAM, and divide some software modules by function, be beneficial to improve maintainability, transplantability and the concertedness of program code, mainly comprise following functional module: metering processing module; Communication processing module; Task repeating query processing module; Power down process module.
Referring to Fig. 3, is the workflow schematic diagram of bidirectional measuring three-phase intelligent electric-energy meter of the present invention.
Measurement error data: measured data is the data that electric energy meter detection platform in chamber detects by experiment, is to belong to standard error calibration method, adopt verification platform for electric energy meter automatically to detect, and comparison other is calibration power source.Asking in detail can be with reference to electric energy meter error detection method.
To the measurement error data result of bidirectional measuring three-phase intelligent electric-energy meter of the present invention in Table 1 to table 4.Wherein:
The measurement error data of the meritorious forward metering that table 1 is bidirectional measuring three-phase intelligent electric-energy meter of the present invention;
The meritorious oppositely measurement error data of metering that table 2 is bidirectional measuring three-phase intelligent electric-energy meter of the present invention;
The measurement error data of the idle forward metering that table 3 is bidirectional measuring three-phase intelligent electric-energy meter of the present invention;
The measurement error data of the idle reverse metering that table 4 is bidirectional measuring three-phase intelligent electric-energy meter of the present invention.
Compare with general technology, the present invention by bidirectional measuring technology, has solved the grid-connected metering method of conventional double-ammeter type, simultaneously can integrated intelligent data acquisition, the functions such as parameter management are the desirable bidirectional measuring intelligent meter schemes of familial distribution of cases formula energy electricity generation grid-connecting.It is grid-connected that the present invention adopts the intelligent electric energy meter of bidirectional measuring technology to carry out, and electric energy meter can be configured to the metering method of algebraic sum metering method or absolute value, has meritorious forward, oppositely meritorious, idle forward, the function of idle reverse metering.During bidirectional measuring, only need to adopt an ammeter metering, provide cost savings and space, reduce failure rate.The present invention simultaneously can realize system management function; electric energy meter and Blast Furnace Top Gas Recovery Turbine Unit (TRT) inversion, protection master control system realize communication; carry out data interaction; not only data can be reported to main station system; be beneficial to partial power management; and can open portion function to user, realize power department and user's condominium.
The measurement error data of the meritorious forward metering of table 1 bidirectional measuring three-phase intelligent electric-energy meter of the present invention
The meritorious oppositely measurement error data of metering of table 2 bidirectional measuring three-phase intelligent electric-energy meter of the present invention
The measurement error data of the idle forward metering of table 3 bidirectional measuring three-phase intelligent electric-energy meter of the present invention
The measurement error data of the idle reverse metering of table 4 bidirectional measuring three-phase intelligent electric-energy meter of the present invention
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a bidirectional measuring three-phase intelligent electric-energy meter, is characterized in that, comprises input front end, output rear end, three phase metering module, built-in power relay, the first control end and the second control end; Described input front end connects three-phase mains net, described output rear end connects respectively the first contact unit and the second contact unit in parallel, wherein, described the first contact unit connects distributed energy power generating network, and described the second contact unit connects threephase load; Between described input front end and output rear end, be connected with described three phase metering module and described built-in power relay, described three phase metering module is for measuring the electric weight of flowing through;
Described the first control end connects described the first contact unit, described the second control end connects described the second contact unit, described the first control end or described the second control end send control information to described the first contact unit or described the second contact unit, control closure and the disconnection of described the first contact unit or described the second contact unit.
2. bidirectional measuring three-phase intelligent electric-energy meter according to claim 1, is characterized in that, described input front end connects three-phase and four-line utility grid.
3. bidirectional measuring three-phase intelligent electric-energy meter according to claim 1, is characterized in that, described built-in power relay is for realizing the disconnection and closure of three-phase mains net.
4. bidirectional measuring three-phase intelligent electric-energy meter according to claim 3, is characterized in that, the magnetic latching relay that described built-in power relay is 120A.
5. bidirectional measuring three-phase intelligent electric-energy meter according to claim 1, it is characterized in that, described the first contact unit connects the inversion master control system in distributed energy power generating network, and described inversion master control system connects the Blast Furnace Top Gas Recovery Turbine Unit (TRT) in distributed energy power generating network.
6. bidirectional measuring three-phase intelligent electric-energy meter according to claim 1, it is characterized in that, when three-phase mains net is powered to threephase load separately, described built-in electric power relay closes, described the first control end sends control information to described the first contact unit, control described the first contact unit and disconnect, described the second control end sends control information to described the second contact unit, controls described the second contact unit closed.
7. bidirectional measuring three-phase intelligent electric-energy meter according to claim 1, it is characterized in that, when distributed energy power generating network is powered to threephase load separately, described built-in power relay disconnects, described the first control end sends control information to described the first contact unit, control described the first contact unit closed, described the second control end sends control information to described the second contact unit, controls described the second contact unit closed.
8. bidirectional measuring three-phase intelligent electric-energy meter according to claim 1, it is characterized in that, when whole electric weight of distributed energy power generating network are supplied with to three-phase mains net, described built-in electric power relay closes, described the first control end sends control information to described the first contact unit, control described the first contact unit closed, described the second control end sends control information to described the second contact unit, controls described the second contact unit and disconnects.
9. bidirectional measuring three-phase intelligent electric-energy meter according to claim 1, it is characterized in that, when the generated energy of distributed energy power generating network is greater than the consumes power of threephase load, when distributed energy power generating network is given threephase load and three-phase mains net power supply simultaneously, described built-in electric power relay closes, described the first control end sends control information to described the first contact unit, control described the first contact unit closed, described the second control end sends control information to described the second contact unit, controls described the second contact unit closed.
10. bidirectional measuring three-phase intelligent electric-energy meter according to claim 1, it is characterized in that, when the generated energy of distributed energy power generating network is less than the consumes power of threephase load, when distributed energy power generating network and three-phase mains net are powered to threephase load simultaneously, described built-in electric power relay closes, described the first control end sends control information to described the first contact unit, control described the first contact unit closed, described the second control end sends control information to described the second contact unit, controls described the second contact unit closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674698.0A CN103645363B (en) | 2013-12-11 | 2013-12-11 | Bidirectional measuring three-phase intelligent electric-energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674698.0A CN103645363B (en) | 2013-12-11 | 2013-12-11 | Bidirectional measuring three-phase intelligent electric-energy meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103645363A true CN103645363A (en) | 2014-03-19 |
| CN103645363B CN103645363B (en) | 2016-09-14 |
Family
ID=50250613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310674698.0A Active CN103645363B (en) | 2013-12-11 | 2013-12-11 | Bidirectional measuring three-phase intelligent electric-energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103645363B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105354929A (en) * | 2015-11-23 | 2016-02-24 | 成都兴联宜科技有限公司 | Three-phase four-wire electronic prepayment electric energy meter |
| CN109374964A (en) * | 2018-10-30 | 2019-02-22 | 四川洪诚电气科技有限公司 | Use electric detection method and Internet of things system based on Internet of Things |
| CN112129995A (en) * | 2020-09-25 | 2020-12-25 | 中国电力科学研究院有限公司 | A method and system for measuring renewable energy power production and consumption |
| US10998731B2 (en) | 2016-05-26 | 2021-05-04 | Landis+Gyr Innovations, Inc. | Utility meter for use with distributed generation device |
| CN112886642A (en) * | 2021-03-19 | 2021-06-01 | 科华数据股份有限公司 | Double-ammeter redundant grid-connected and off-grid control circuit and micro-grid system |
| US11187734B2 (en) | 2019-05-31 | 2021-11-30 | Landis+Gyr Innovations, Inc. | Systems for electrically connecting metering devices and distributed energy resource devices |
| US11237194B2 (en) | 2019-10-11 | 2022-02-01 | Landis+Gyr Innovations, Inc. | Meter for use with a distributed energy resource device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1051958A (en) * | 1996-08-06 | 1998-02-20 | Tokyo Gas Co Ltd | Control device for received power |
| CN1329326A (en) * | 2000-06-15 | 2002-01-02 | 上海英孚特电子技术有限公司 | Multi-user power-driven terminal |
| CN201788225U (en) * | 2009-11-18 | 2011-04-06 | 上海金陵智能电表有限公司 | Single-phase intelligent electric energy meter with wireless meter reading module |
| CN201852884U (en) * | 2009-11-18 | 2011-06-01 | 上海金陵智能电表有限公司 | Single-phase intelligent electric energy meter with carrier meter reading module |
| CN202110217U (en) * | 2011-05-25 | 2012-01-11 | 长沙理工大学 | A bidirectional electric energy metering device for distributed new energy generation system |
| US20120169300A1 (en) * | 2011-01-04 | 2012-07-05 | General Electric Company | Integrated electric meter with var capability |
| US8260695B1 (en) * | 2010-07-14 | 2012-09-04 | Steven Rosenberg | Secondary power meter for quarter-cycle power measurement and invoicing method |
| CN103364631A (en) * | 2013-07-26 | 2013-10-23 | 国家电网公司 | High-voltage user photovoltaic power generation electric energy metering system and method thereof |
-
2013
- 2013-12-11 CN CN201310674698.0A patent/CN103645363B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1051958A (en) * | 1996-08-06 | 1998-02-20 | Tokyo Gas Co Ltd | Control device for received power |
| CN1329326A (en) * | 2000-06-15 | 2002-01-02 | 上海英孚特电子技术有限公司 | Multi-user power-driven terminal |
| CN201788225U (en) * | 2009-11-18 | 2011-04-06 | 上海金陵智能电表有限公司 | Single-phase intelligent electric energy meter with wireless meter reading module |
| CN201852884U (en) * | 2009-11-18 | 2011-06-01 | 上海金陵智能电表有限公司 | Single-phase intelligent electric energy meter with carrier meter reading module |
| US8260695B1 (en) * | 2010-07-14 | 2012-09-04 | Steven Rosenberg | Secondary power meter for quarter-cycle power measurement and invoicing method |
| US20120169300A1 (en) * | 2011-01-04 | 2012-07-05 | General Electric Company | Integrated electric meter with var capability |
| CN202110217U (en) * | 2011-05-25 | 2012-01-11 | 长沙理工大学 | A bidirectional electric energy metering device for distributed new energy generation system |
| CN103364631A (en) * | 2013-07-26 | 2013-10-23 | 国家电网公司 | High-voltage user photovoltaic power generation electric energy metering system and method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赵玉梅等: "基于R5F212B8的单相智能电能表的研制", 《电测与仪表》, vol. 49, no. 564, 31 December 2012 (2012-12-31), pages 69 - 73 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105354929A (en) * | 2015-11-23 | 2016-02-24 | 成都兴联宜科技有限公司 | Three-phase four-wire electronic prepayment electric energy meter |
| US11223210B2 (en) | 2016-05-26 | 2022-01-11 | Landis+Gyr Innovations, Inc. | Utility meter for use with distributed generation device |
| US10998731B2 (en) | 2016-05-26 | 2021-05-04 | Landis+Gyr Innovations, Inc. | Utility meter for use with distributed generation device |
| CN109374964A (en) * | 2018-10-30 | 2019-02-22 | 四川洪诚电气科技有限公司 | Use electric detection method and Internet of things system based on Internet of Things |
| US11187734B2 (en) | 2019-05-31 | 2021-11-30 | Landis+Gyr Innovations, Inc. | Systems for electrically connecting metering devices and distributed energy resource devices |
| US11774473B2 (en) | 2019-05-31 | 2023-10-03 | Landis+Gyr Technology, Inc. | Systems for electrically connecting metering devices and distributed energy resource devices |
| US11237194B2 (en) | 2019-10-11 | 2022-02-01 | Landis+Gyr Innovations, Inc. | Meter for use with a distributed energy resource device |
| US11506693B2 (en) | 2019-10-11 | 2022-11-22 | Landis+Gyr Innovations, Inc. | Meter and socket for use with a distributed energy resource device |
| US11835556B2 (en) | 2019-10-11 | 2023-12-05 | Landis+Gyr Technology, Inc. | Meter for use with a distributed energy resource device |
| US11965918B2 (en) | 2019-10-11 | 2024-04-23 | Landis+Gyr Technology, Inc. | Meter for use with a distributed energy resource device |
| CN112129995A (en) * | 2020-09-25 | 2020-12-25 | 中国电力科学研究院有限公司 | A method and system for measuring renewable energy power production and consumption |
| CN112129995B (en) * | 2020-09-25 | 2023-03-21 | 中国电力科学研究院有限公司 | Renewable energy power production and consumption metering method and system |
| CN112886642A (en) * | 2021-03-19 | 2021-06-01 | 科华数据股份有限公司 | Double-ammeter redundant grid-connected and off-grid control circuit and micro-grid system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103645363B (en) | 2016-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103645363A (en) | Two-way metering three-phase intelligent electric energy meter | |
| CN202886463U (en) | Intelligent electric energy meter with functions of electric leakage remote monitoring and protection | |
| CN103501058B (en) | Based on the energy efficiency management system of Intelligent platform zone | |
| CN202372549U (en) | Electric quantity compensation device for hot-line electric energy meter replacement | |
| CN202693653U (en) | Single-phase fee control intelligent electric energy meter | |
| CN202353321U (en) | Intelligent comprehensive electricity-distributing metering meter box | |
| CN205068599U (en) | One -phase fee -controlling intelligent electric energy meter | |
| CN201518049U (en) | Distribution transformer monitoring metering terminal | |
| CN204992761U (en) | Electric energy quality is synthesized and is observed and controled appearance | |
| CN201697967U (en) | Intelligent-power-grid-oriented multifunctional electricity meter | |
| CN102055198A (en) | Reactive compensation intelligent monitoring management system | |
| CN103018548A (en) | Electricity-saving appliance with electricity saving quantity display and application method of electricity-saving appliance | |
| CN200996971Y (en) | Composite electric-energy managing system of load control and multiplexing time-sharing charging | |
| CN204216589U (en) | A kind of be used for that platform district is idle, the quality of power supply and efficiency composite control apparatus | |
| CN102236936A (en) | Multifunctional electricity meter oriented to smart power grid | |
| Bai et al. | Functional analysis of advanced metering infrastructure in smart grid | |
| Megalingam et al. | Advanced digital smart meter for dynamic billing, tamper detection and consumer awareness | |
| CN202854214U (en) | Full-voltage loss measuring device and intelligent electric meter | |
| CN105093161A (en) | Gateway electric energy meter online replacing mode electric quantity loss compensation metering system | |
| CN111122968A (en) | Real-time metering and monitoring system and method for power data and power quality | |
| CN201887483U (en) | Reactive compensation intelligent monitoring manager | |
| CN202033417U (en) | Power saving rate verification system of power saver | |
| CN202586344U (en) | Power-saving device having power-saving rate verification system | |
| CN205809169U (en) | Integrally prepayment intelligent control system | |
| CN201118193Y (en) | Self-powered digital current relay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD. Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee before: Electrical Power Research Institute of Guangdong Power Grid Corporation |