CN203929882U - Distributed power source access user bidirectional measuring and monitoring system - Google Patents
Distributed power source access user bidirectional measuring and monitoring system Download PDFInfo
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- CN203929882U CN203929882U CN201420228318.0U CN201420228318U CN203929882U CN 203929882 U CN203929882 U CN 203929882U CN 201420228318 U CN201420228318 U CN 201420228318U CN 203929882 U CN203929882 U CN 203929882U
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Abstract
The utility model relates to bidirectional measuring and the monitoring technology of electric energy, aims to provide a kind of distributed power source access user bidirectional measuring and monitoring system.The utility model comprises customer power supply bus, public electric wire net, user power utilization load, distributed generation system and user's bidirectional measuring and monitoring system, and described user's bidirectional measuring and monitoring system comprise processor module, AD modular converter, 2 road voltage acquisition modules, 2 road current acquisition modules, display module, memory module, key-press module, communication module, power module, voltage acquisition sensor and current acquisition sensor.The utility model beneficial effect has: solved the bidirectional electric energy measurement problem between distributed power source generating metering and family and the electrical network of distributed power source access user, the electric energy measurement data of distributed power source be can be used as to user and obtain the foundation that government finance is subsidized, the clearing foundation to the metering of electric energy between user and electrical network as power purchase and sale of electricity between user and electrical network.
Description
Technical field
The utility model relates to bidirectional measuring and the monitoring technology of electric energy, is specifically related to a kind of distributed power source access user bidirectional measuring and monitoring system.
Background technology
Along with new forms of energy distributed generation technology and foster the maturation of policy, a large amount of distributed power source access users is about to occur.Access grid-connected due to user's distributed generation system, user's distributed power generation can be surfed the Net, make original power supply have electrical network to become electrical network and user's two-way flow to user's uniflux, original metering system and technology can not meet the requirement of new forms of energy access, need relevant bidirectional measuring and the monitoring system that is applicable to distributed energy access of research.
The unidirectional metering of electrical network to user can only be carried out with metering system in existing family.There is subsequently intelligent electric meter, can realize the bidirectional measuring of single-point, the demand of satisfied distributed power source access user bidirectional measuring to a certain extent, can adapt to that distributed power source access user is generated power for their own use, the demand of user's bidirectional measuring of remaining electric online pattern and electricity cost clearing.
But along with the newly relevant policies appearance of fostering generation of electricity by new energy of energy of country in 2013, user's distributed new generating, especially photovoltaic generation can be realized economic benefit to electrical network part except sale of electricity, use by oneself or be sold to electrical network no matter be, whole generation of electricity by new energy can obtain national energy subsidy, outside the dump energy of selling like this, also need to measure separately the gross generation of new forms of energy except measuring whole user's power consumption and to electrical network.
Because the access of user's new forms of energy makes to exist the situation of user to electrical network sale of electricity, in the time that generation of electricity by new energy is not enough, user still need to meet household electricity demand from electrical network power purchase, therefore the metering mount scheme of current common distributed home access national grid is most of for the mode of distributed power generation and independent two electric energy meters of subscriber household is measured, an ammeter metering generation of electricity by new energy, a metering user household integral power consumption.But this scheme need to be installed two electric energy meters, it is convenient not that user uses, data are direct not, and have certain incidence relation when the continuous data of two tables, cannot utilize this incidence relation to realize some new Premium Features.
Chinese patent application has been introduced a kind of resident's intelligent electric meter system (CN102591276) that is applicable to intelligent grid, its ultimate principle is the control terminal that utilizes an intelligent electric meter to coordinate each consumer place to install, realize the collection of power information and the control of consumer, reach the object that reduces electric cost.Chinese patent application has been introduced a kind of total electric weight accumulation method (CN102200544) of intelligent electric meter of bidirectional measuring, and its ultimate principle is to utilize " reading to reset " pattern of the energy register of intelligent electric meter, realizes user's forward and oppositely total electric weight.These two patents are not all considered the independent measurement problem of distributed new.
Utility model content
The technical problems to be solved in the utility model is, overcomes deficiency of the prior art, and a kind of distributed power source access user bidirectional measuring and monitoring system are provided.
For technical solution problem, solution of the present utility model is:
A kind of distributed power source access user bidirectional measuring and monitoring system are provided, comprise customer power supply bus, public electric wire net, user power utilization load, distributed generation system and user's bidirectional measuring and monitoring system, described user's bidirectional measuring and monitoring system comprise processor module, AD modular converter, 2 road voltage acquisition modules, 2 road current acquisition modules, display module, memory module, key-press module, communication module, power module, voltage acquisition sensor and current acquisition sensor.
Described voltage acquisition sensor output terminal, current acquisition sensor output terminal are connected respectively to 2 road voltage acquisition module input ends, 2 road current acquisition module inputs, realize the information acquisition to electric current, voltage; Described 2 road voltage acquisition module output terminals, 2 road current acquisition module output terminals are connected to processor module by AD modular converter; Described processor module with memory module, communication module is two-way is connected, wherein memory module is for realizing the generated output of metering, the storage of generated energy information; Described processor module is connected with display module input end, key-press module output terminal, power module outlet, and wherein display module is for showing electric energy, the power information of the voltage, current information and the calculating that collect; Key-press module is for the switching of display page and the setting of parameter; Power module is for providing the working power of processor module, display module, AD modular converter, communication module, 2 road voltage acquisition modules, 2 road current acquisition modules and key-press module.
Described user's bidirectional measuring and monitoring system by voltage acquisition sensor, current acquisition sensor gather respectively public electric wire net, distributed generation system is connected electric current, voltage signal on customer power supply bus, realize the metering of bidirectional power, electric energy on connection line between generated output, electric weight and the user of distributed generation system and public electric wire net, realize the monitoring to distributed power source in distributed generation system by the voltage, the current signal that gather simultaneously; Described user's bidirectional measuring and monitoring system are connected to power information collecting device by communication module, and the energy data of metering is sent to power information collecting device, receive the electricity price information that power information collecting device sends simultaneously; Described public electric wire net is connected to customer power supply bus by supply line, and described some user power utilization load is connected to customer power supply bus and obtains electric energy and carry out work; Connection line between connection line between described public electric wire net and customer power supply bus and distributed generation system and customer power supply bus is by voltage sensor, current sensor, and be connected respectively to 2 road voltage acquisition modules, the 2 road current acquisition modules of user's bidirectional measuring and monitoring system, simultaneously corresponding the voltage flowing through on circuit, electric current are sent to AD modular converter.
In the utility model, described distributed generation system is combined generating system or photovoltaic, blower fan and the energy storage combined generating system of photovoltaic generating system, blower fan power generation system, fuel cell system, photovoltaic territory energy storage combined generating system, blower fan and energy storage.
In the utility model, described communication module is one or more in PLC communication module, RS485 communication module, RS232 communication module, infrared communication module, WIFI wireless communication module, ethernet communication module.
In the utility model, described 2 road voltage acquisition modules, 2 road current acquisition modules are for gathering respectively two-way single-phase voltage, two-way single-phase current, for the distributed power generation metering of distributed power source access user and the required electric current of the total Electro-metering of family, voltage acquisition provide passage.
A kind of method based on described distributed power source access user bidirectional measuring and monitoring system is provided, and described method comprises distributed power source access user bidirectional measuring method and distributed power source access user energy monitor method.
Described distributed power source access user bidirectional measuring method is as follows:
The electric current I of distributed power source in the distributed generation system that described processor module gathers 2 road voltage acquisition modules, 2 road current acquisition modules by AD modular converter
1, voltage U
1and electric current I on connection line between user and public electric wire net
2, voltage U
2, Computation distribution formula generated output P
1, electric energy W
1and connection line power P between user and public electric wire net
2, electric energy W
2, user power utilization load electric energy is W
l, user power utilization load power is P
l, its relational expression is each other:
P
1＝U
1×I
1(1)
P
2＝U
2×I
2(2)
W
1＝P
1×Δt (3)
W
2＝P
2×Δt(4)
W
1+W
2＝W
L(5)
P
1+P
2＝P
L(6)
Wherein Δ t is electric energy metrical sampling computing time, and unit is s; The unit of each electric current, voltage, power, electric energy is respectively A, V, W, J; When distributed power generation power P
1be greater than user power utilization load power P
ltime, user is to public electric wire net sale of electricity, now P
2=P
l-P
1for negative value, rated output P
1-P
lfor the power of user's sale of electricity, metering electric energy W
1-W
lfor user is to the electric energy of public electric wire net sale of electricity.
Described distributed power source access user energy monitor method is as follows:
Calculate the generating frequency f of distributed generation system by the zero passage information of distributed power source voltage data gathering
1;
Described processor module is according to the voltage U of distributed power source
1with generating frequency f
1judge the state of distributed generation system, work as voltage U
1with generating frequency f
1while exceeding grid-connected requirement, carry out alarm and processing:
Its Rule of judgment is
│ U
1-U
electrical network│ >15% × U
electrical network(7)
Or
F
1>50.5Hz or f
1<49.5Hz (8)
Wherein U
electrical networkfor public electric wire net supply voltage ratings, unit is V.
Described method also comprises distributed power source generated energy tamper resistant method, specific as follows:
Distributed power generation electric energy W
1, generated output P
1and bidirectional measuring electric energy W between user and public electric wire net
2, power P
2, user power utilization load electric energy is W
l, user power utilization load power is P
l, user power utilization load electric energy is W
l, user power utilization load power is P
l, between three, relation meets relational expression:
W
1+ W
2=W
l, P
1+ P
2=P
l, W
2=W
l-W
1, P
2=P
l-P
1;
When distributed power generation power P
1be greater than user power utilization load power P
ltime, P
2for negative value, represent that user is to public electric wire net sale of electricity, corresponding metering sale of electricity power, due to P
l>=0, and W
l>=0, so work as P
2for negative value, when user is to public electric wire net sale of electricity, if connection line power and electric energy meet │ P between the user that processor module calculates and public electric wire net
2│ >P
1or │ W
2│ >W
1time, do not meet principle of energy balance, represent to have measuring error or electricity filching behavior, carry out alarm.
Compared with prior art, the beneficial effects of the utility model are:
Adopt the bidirectional electric energy measurement problem between integrated distributed power source generating metering and family and the electrical network that has solved distributed power source access user of this distributed power source access user bidirectional measuring and monitoring system, the electric energy measurement data of distributed power source be can be used as user and obtained the foundation of government finance subsidy, the metering of bidirectional electric energy between user and electrical network be can be used as to the clearing foundation of power purchase and sale of electricity between user and electrical network.And adopt integrated metering solution can utilize simultaneously two electric energy of metering and power data to protect the reliability of data.Adopt the mode of AD modular converter can obtain electric current and voltage data carries out the calculating of electric energy and power more simultaneously, real-time current, voltage and the frequency data of distributed generation system can be directly effectively obtained, the monitoring function to distributed generation system can be realized.
Brief description of the drawings
Fig. 1 is that distributed power source access user bidirectional measuring is connected block diagram with monitoring system;
Fig. 2 is user's bidirectional measuring and monitoring system built-in function block diagram.
Embodiment
Following embodiment can make the technician of this professional skill field more fully understand the utility model, but limits never in any form the utility model.
First it should be noted that, the utility model relates to electric energy metrical and monitoring technology.In implementation procedure of the present utility model, can relate to the application of multiple circuit function modules.Applicant thinks, as reading over application documents, accurate understanding is of the present utility model realize principle and utility model object after, in conjunction with existing known technology in the situation that, those skilled in the art can use the technical ability of its grasp to realize the utility model completely.Aforementioned user's bidirectional measuring and the each functional module of monitoring system comprise but are not limited to: processor module, AD modular converter, 2 road voltage acquisition modules, 2 road current acquisition modules, display module, memory module, key-press module, communication module and power module etc., this category of all genus that all the utility model application documents are mentioned, applicant will not enumerate.
Concrete thought of the present utility model is as follows: distributed power source access user bidirectional measuring and monitoring system are as shown in Figure 1.Public electric wire net power supply buses is connected to customer power supply bus by supply line, described some user power utilization loads are connected to customer power supply bus and obtain electric energy work, user distribution formula power supply is connected to customer power supply bus provides electric energy to meet the demand of load, in the time that distributed power source generated energy is less than user power utilization workload demand, insufficient section provides from public electric wire net power purchase, in the time that the generating of user distribution formula power supply is greater than customer charge demand, unnecessary electric weight is realized sale of electricity by being transported to large electrical network with the connection line of public electric wire net.
User's bidirectional measuring and monitoring system gather electric current, the information of voltage on the circuit that public electric wire net and distributed power generation be connected to customer power supply bus by sensor simultaneously, realize generated output, electric weight and the user of distributed generation system and bidirectional power, the electric energy of electrical network connection line, can also realize the monitoring to distributed power source by the voltage, the current information that gather simultaneously.User's bidirectional measuring and monitoring system are connected to power information acquisition system and the EM equipment module of electrical network by communication module simultaneously, the energy data of metering is sent to power information collecting device, receives the information such as electricity price that power information collecting device sends simultaneously.
As shown in Figure 1, 2 road voltage acquisition modules of user's bidirectional measuring and monitoring system, 2 road current acquisition modules are passed through respectively voltage sensor, current sensor is connected on distributed power source and public electric wire net and customer power supply bus connection line and gathers the electric current on distributed power source and power supply grid circuit, voltage signal, by the voltage gathering, electric current measures respectively the generated output of distributed generation system, the bidirectional power of electric weight and user and electrical network connection line, electric energy, the distributed power generation amount of metering can be used as the foundation of generating subsidy, two-way electric weight between user and the electrical network of metering is as the foundation of user and grid company charge calculation.
User's bidirectional measuring and monitoring system functional block diagram as shown in Figure 2, comprise processor module, AD modular converter, 2 road voltage acquisition modules, 2 road current acquisition modules, display module, memory module, key-press module, communication module and power module, and current sensor and voltage sensor, distribution type electric energy metering and user are connected bidirectional electric energy metering algorithm in the inner realization of processor module with electrical network.
Public electric wire net power supply buses is connected to connection line that the connection line of customer power supply bus and distributed generation system be connected to customer power supply bus and is connected to by voltage sensor 2 road voltage acquisition modules of user's bidirectional measuring and monitoring system, and the voltage flowing through on circuit is sent to AD modular converter; Public electric wire net power supply buses is connected to connection line that the connection line of customer power supply bus and distributed power generation be connected to customer power supply bus and is connected to by current sensor 2 road current acquisition modules of user's bidirectional measuring and monitoring system, and the electric current flowing through on circuit is sent to AD modular converter; AD modular converter is converted to the voltage and current signal on 2 circuits that receive electric current and the information of voltage of digital quantity, and be sent to the processor module of user's bidirectional measuring and monitoring system, processor module is by bidirectional power and electric energy between voltage and current calculated signals distributed power source generated output and generated energy and user and the electrical network of digital quantity, the distributed power generation amount of metering can be used as the foundation of generating subsidy, and the two-way electric weight between the user of metering and electrical network is as the foundation of user and grid company charge calculation.Processor module is stored in the information such as generated output, generated energy of metering in memory module, needs the moment to read these information from memory module.Processor module is shown to the electric energy of the voltage of collection, current information and calculating, power information user by display module and checks simultaneously, and user can carry out the functions such as arranging of the switching of display page and parameter by key-press module.Processor module provides working power by communication module power module for all above-mentioned processor modules, display module, AD modular converter, communication module, 2 road voltage acquisition modules, 2 road current acquisition modules, key-press module.
Described distributed generation system is combined generating system or photovoltaic, blower fan and the energy storage combined generating system of photovoltaic generating system, blower fan power generation system, fuel cell system, photovoltaic territory energy storage combined generating system, blower fan and energy storage.
Described communication module is one or more in PLC communication module, RS485 communication module, RS232 communication module, infrared communication module, WIFI wireless communication module, ethernet communication module.
Described current sensor, voltage sensor are converted into the electric current of needs collection, voltage electric current, the voltage signal that can carry out digital conversion, and electric current, the voltage signal that described 2 road voltage acquisition modules, 2 road current acquisition modules send current sensor, voltage sensor is transformed into the measurement range of AD modular converter.
In the utility model embodiment, described distributed generation system is single-phase photovoltaic generating system, the power information that described power information collecting device is grid company is concentrated acquisition terminal, described processor module adopts ARM flush bonding processor M3 family chip STM32F205, and described AD modular converter is for adopting high-precision 16 bit parallel acquisition chip AD7606; 2 road voltage acquisition modules, 2 road current acquisition modules are respectively the Collect conversion circuit of two-way single-phase voltage, the Collect conversion circuit of two-way single-phase current; Display module adopts resolution 640 × 480 Liquid Crystal Modules to show; Memory module is EEPROM storage chip AT24C256; Key-press module is 2 × 4 matrix press-key; Communication module is RS485 communication, ethernet communication, infrared communication and power line carrier communication; Voltage acquisition sensor, current acquisition sensor are voltage transformer (VT), current transformer.
It is emphasized that at this, above-mentioned each module is the set of circuit logic, but not virtual functions module, its specific implementation is this area common technique means, those skilled in the art pass through reading of the present utility model, can reproduce completely according to the routine techniques means of its grasp, even if this area also can be implemented on the basis that there is no circuit diagram.
A kind of distributed power source access user bidirectional measuring method is provided, specific as follows:
Electric current I on the voltage acquisition sensor that described processor module connects 2 road voltage acquisition modules, 2 road current acquisition modules by AD modular converter, the generating circuit that current acquisition sensor gathers distributed generation system
1, voltage U
1electric current I between information and user and public electric wire net on connection line
2, voltage U
2information, the real-time P of Computation distribution formula generated output
1, electric energy W
1, connection line realtime power P between user and public electric wire net
2, electric energy W
2, its relational expression is each other:
P
1＝U
1×I
1(1)
P
2＝U
2×I
2(2)
W
1＝P
1×Δt (3)
W
2＝P
2×Δt (4)
W
1+W
2＝W
L(5)
P
1+P
2＝P
L(6)
Wherein Δ t is electric energy metrical sampling computing time, and unit is s; The unit of each electric current, voltage, power, electric energy is respectively A, V, W, J; When distributed power generation power P
1be greater than as preload electric power P
ltime, user is to public electric wire net sale of electricity, now P
2=P
l-P
1for negative value, rated output P
1-P
lfor user's sale of electricity power, metering electric energy W
1-W
lfor user is to the electric energy of public electric wire net sale of electricity; Described processor module sends to the electric energy of calculating, power data by communication module the power information collecting device of grid company, as the foundation of grid company and demand charge clearing, also realizes the collection to user power utilization information.
A kind of distributed power source access user energy monitor method is provided, as follows:
Described processor module gathers the current acquisition sensor of 2 road voltage acquisition modules, 2 road current acquisition modules and connection thereof, voltage acquisition sensor by AD modular converter the electric current I of distributed power source
1, voltage U
1electric current I between information and user and public electric wire net on connection line
2, voltage U
2information.Described processor module is according to the electric current I of the distributed power source gathering
1, voltage U
1generating situation to distributed generation system is monitored, and calculates the generating frequency f of distributed generation system by the zero passage information of voltage data simultaneously
1.Described processor module is according to the voltage U of distributed generation system
1with generating frequency f
1the preliminary generating state that judges distributed generation system, works as voltage U
1, generating frequency f
1while exceeding grid-connected requirement, carry out alarm and processing.
Its Rule of judgment is:
│ U
1-U
electrical network│ >15% × U
electrical network(7)
Or
F
1>50.5Hz or f
1<49.5Hz (8)
Wherein U
electrical networkfor public electric wire net supply voltage ratings, unit is V.
This equipment possesses the remote monitoring function of distributed power generation simultaneously, the electric current I of distributed power source in the distributed generation system that processor module obtains by the collection of AD modular converter
1, voltage U
1information exchange is crossed communication module and is sent to the power information collecting device of electrical network, makes the state of the understanding user distribution formula electricity generation system that the traffic department of grid company can be real-time, for rational scheduling provides data.
A kind of distributed power source generated energy tamper resistant method is provided, specific as follows:
Described processor module is by the distributed power generation electric energy W of metering
1, generated output P
1and bidirectional measuring electric energy W between user and public electric wire net
2, P
2there is certain electricity filching behavior in preliminary judgement.
Distributed power generation electric energy W
1, generated output P
1and bidirectional measuring electric energy W between user and public electric wire net
2, power P
2, user power utilization load electric energy is W
l, user power utilization load power is P
l, between three, relation should be and meets W
1+ W
2=W
l, P
1+ P
2=P
l, W
2=W
l-W
1, P
2=P
l-P
2.When distributed power generation power P
1be greater than user power utilization load power P
ltime, P
2for negative value, represent that user is to public electric wire net sale of electricity, corresponding metering sale of electricity power, due to P
l>=0, and W
l>=0, so work as P
2for negative value, when user is to public electric wire net sale of electricity, if connection line power and electric energy meet │ P between the user that processor module calculates and public electric wire net
2│ >P
1or │ W
2│ >W
1time, do not meet principle of energy balance, represent to have measuring error or electricity filching behavior, carry out alarm.
Therefore, actual range of the present utility model not only comprises the disclosed embodiments, is also included under claims and implements or to carry out all equivalents of the present utility model.
Claims (3)
1. a distributed power source access user bidirectional measuring and monitoring system, comprise customer power supply bus, public electric wire net and user power utilization load, it is characterized in that, also comprise distributed generation system and user's bidirectional measuring and monitoring system, described user's bidirectional measuring and monitoring system comprise processor module, AD modular converter, 2 road voltage acquisition modules, 2 road current acquisition modules, display module, memory module, key-press module, communication module, power module, voltage acquisition sensor and current acquisition sensor;
Described voltage acquisition sensor output terminal, current acquisition sensor output terminal are connected respectively to 2 road voltage acquisition module input ends, 2 road current acquisition module inputs; Described 2 road voltage acquisition module output terminals, 2 road current acquisition module output terminals are connected to processor module by AD modular converter; Described processor module with memory module, communication module is two-way is connected; Described processor module is connected with display module input end, key-press module output terminal, power module outlet;
Described user's bidirectional measuring and monitoring system are connected to power information collecting device by communication module, and described public electric wire net is connected to customer power supply bus by supply line, and described some user power utilization loads are connected to customer power supply bus; Connection line between connection line between described public electric wire net and customer power supply bus and distributed generation system and customer power supply bus passes through voltage sensor, current sensor, and is connected respectively to 2 road voltage acquisition modules, the 2 road current acquisition modules of user's bidirectional measuring and monitoring system.
2. according to distributed power source access user bidirectional measuring and the monitoring system described in claim 1, it is characterized in that, described distributed generation system is combined generating system or photovoltaic, blower fan and the energy storage combined generating system of photovoltaic generating system, blower fan power generation system, fuel cell system, photovoltaic territory energy storage combined generating system, blower fan and energy storage.
3. according to distributed power source access user bidirectional measuring and the monitoring system described in claim 1, it is characterized in that, described communication module is one or more in PLC communication module, RS485 communication module, RS232 communication module, infrared communication module, WIFI wireless communication module, ethernet communication module.
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|---|---|---|---|
| CN201420228318.0U CN203929882U (en) | 2014-05-06 | 2014-05-06 | Distributed power source access user bidirectional measuring and monitoring system |
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|---|---|---|---|
| CN201420228318.0U CN203929882U (en) | 2014-05-06 | 2014-05-06 | Distributed power source access user bidirectional measuring and monitoring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983845A (en) * | 2014-05-06 | 2014-08-13 | 浙江大学 | Distributed power supply connecting user double-direction metering and monitoring system and method |
| CN104931776A (en) * | 2015-04-21 | 2015-09-23 | 南通微能节能科技有限公司 | Architectural energy consumption item metering system and method based on virtual fusion technology |
| CN105067857A (en) * | 2015-08-21 | 2015-11-18 | 南方电网科学研究院有限责任公司 | Electricity consumption information acquisition system and analysis method |
| CN105223395A (en) * | 2015-10-28 | 2016-01-06 | 国网青海省电力公司 | For the reactive energy measurement method at generation of electricity by new energy station |
| CN106597047A (en) * | 2016-12-14 | 2017-04-26 | 国家电网公司 | Metering system and method having self-contained power supply user pi access system |
-
2014
- 2014-05-06 CN CN201420228318.0U patent/CN203929882U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983845A (en) * | 2014-05-06 | 2014-08-13 | 浙江大学 | Distributed power supply connecting user double-direction metering and monitoring system and method |
| CN104931776A (en) * | 2015-04-21 | 2015-09-23 | 南通微能节能科技有限公司 | Architectural energy consumption item metering system and method based on virtual fusion technology |
| CN104931776B (en) * | 2015-04-21 | 2019-07-02 | 江苏微能低碳有限公司 | Building energy consumption metering separate system and method based on virtual integration technology |
| CN105067857A (en) * | 2015-08-21 | 2015-11-18 | 南方电网科学研究院有限责任公司 | Electricity consumption information acquisition system and analysis method |
| CN105067857B (en) * | 2015-08-21 | 2018-06-19 | 南方电网科学研究院有限责任公司 | Power information acquisition system and analysis method |
| CN105223395A (en) * | 2015-10-28 | 2016-01-06 | 国网青海省电力公司 | For the reactive energy measurement method at generation of electricity by new energy station |
| CN105223395B (en) * | 2015-10-28 | 2018-01-12 | 国网青海省电力公司 | Reactive energy measurement method for generation of electricity by new energy station |
| CN106597047A (en) * | 2016-12-14 | 2017-04-26 | 国家电网公司 | Metering system and method having self-contained power supply user pi access system |
| CN106597047B (en) * | 2016-12-14 | 2019-03-22 | 国家电网公司 | A kind of metering system and method with power autonomous user ∏ access system |
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