CN104166387A - Distributed photovoltaic grid-connected generation monitoring system power consumption measurement apparatus - Google Patents
Distributed photovoltaic grid-connected generation monitoring system power consumption measurement apparatus Download PDFInfo
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- CN104166387A CN104166387A CN201410328349.8A CN201410328349A CN104166387A CN 104166387 A CN104166387 A CN 104166387A CN 201410328349 A CN201410328349 A CN 201410328349A CN 104166387 A CN104166387 A CN 104166387A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a distributed photovoltaic grid-connected generation monitoring system power consumption measurement apparatus comprising a power supply portion, a signal acquisition portion, a metering portion and a main signal processing portion. Besides, the apparatus also includes: a coordinated signal processing portion, which uses a signal acquisition portion to collect a commercial power voltage and a current signal and carries out rapid FFT conversion calculation and analyses, thereby serving as an expanding calculation unit of the metering portion and the main signal processing unit; and a data display portion, which includes a segmentation type liquid display portion connected with a main processor and a dot matrix liquid display portion connected with the coordinated signal processing portion. The main signal processing portion and the coordinated signal processing portion are respectively connected to a data storage portion, thereby realizing real-time data access according to an internal clock signal; and the power supply portion provides a working voltage support for the metering portion, the main signal processing portion, and the coordinated signal processing portion. According to the invention, the provided apparatus can be used for developing a real-time database-based new energy grid-connected generation monitoring system in a cooperating mode, thereby realizing monitoring of grid-connected generation of all grid-connected points.
Description
Technical field
The present invention relates to a kind of home-use can optimization system, especially relate to a kind of distributed photovoltaic supervisory system electrical measurement of generating electricity by way of merging two or more grid systems.
Background technology
Familial distribution of cases formula energy access electrical network is in China at present in the pilot conversion stage, and as a kind of power supply access electrical network, international and domestic have many relevant criterion to put into effect.Family's parallel network power generation supervisory system also has many practices at home and abroad, only limits at present LAN (Local Area Network), and Utilities Electric Co. is without interconnected, and lacks this piece content of energy source optimization.The encouragement that China puts into effect at present utilizes the policy of sun power, is mainly for surface power station, utilities building, industrial and mineral commercial enterprise, family expenses photovoltaic power generation apparatus grid-connected, all indefinite with the policy such as electrical network exchange electric weight, rate for incorporation into the power network and clearing form.Family expenses photovoltaic generating system is compared with utilities building, industrial and mineral commercial enterprise, there is hair mistiming problem, just will inevitably send problem by oriented electrical network, along with the popularization of the familial distribution of cases formula energy is with universal, dynamically floating of electricity price will be carried out with grid company by country, and in this case, family is rational utilization of electricity how, accomplishing that electric cost is minimum, is a problem that is worth research.
In recent years, national low-carbon energy policy is greatly developed New Energy Industry.And site is because distribution range is wider, and much by low-pressure grid-connection, existing dispatch automated system cannot be monitored it, therefore has the problem of difficult management.And database not only needs to include the data of dispatching automation, also need to include the data of electric flux, electricity consumption acquisition system, therefore can be by calling corresponding data in this database, by configuration instrument, processed, develop a set of new energy grid-connected power supervisory system based on real-time data base, thereby realize each also monitoring of the grid-connected electric weight in site.
Summary of the invention
Technical matters to be solved by this invention is just to provide a kind of distributed photovoltaic supervisory system electrical measurement of generating electricity by way of merging two or more grid systems, coordinate a set of new energy grid-connected power supervisory system based on real-time data base of exploitation, thereby realize each also monitoring of the grid-connected electric weight in site.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
Technical scheme 1: the distributed photovoltaic supervisory system of generating electricity by way of merging two or more grid systems, wherein it is the mechanical floor by communication is coupled successively, sensor layer, Communication Layer and system key-course form, wherein said mechanical floor has comprised that the user that is installed in family room is with the distribution type photovoltaic power generation device of can equipment and being attached thereto, sensor layer is configured to gateway and interactive terminal, be used for connecting user with can equipment and distributed energy Blast Furnace Top Gas Recovery Turbine Unit (TRT) and user's energy consumption is measured and energy supply/use can be controlled, described Communication Layer is configured to connect the LAN between described sensor layer and system key-course, described gateway is to be set to socket or electrical measurement, described system key-course is to be set to parallel network power generation supervisory system and with can information acquisition system.
In one embodiment, described socket comprises: socket, is used to user with providing electric power source by equipment; Power taking end, connects electrical network Alternating Current Power Supply line to obtain electric power; Energy supply sampling portion, is arranged between described socket and power taking end, for energy supply signal is sampled and is converted to, can calculate signal; I/O interface portion, connects described energy supply sampling portion, and further connects signal processing part and a network adapter that is arranged at described socket inside, and wherein said network adapter is for by antenna assembly connecting communication layer.
In one embodiment, described socket comprises outlet and network outlet.
In one embodiment, described network adapter comprises: connect the Ethernet switch of described network outlet, it further connects described I/O interface portion; The PLC medium access control part that connects described Ethernet switch, for respectively carrying out addressing and data access by the interface message of energy equipment by this subscriber equipment according to the user of each network interface access; With the AFE (analog front end) that described PLC medium access control part is of coupled connections, it has a step-down portion to connect described power taking end, and described signal processing part connects described Ethernet switch by I/O interface portion.
In one embodiment, design described system key-course to carry out following parallel network power generation policer operation: 1) gather the current by energy data of each collection point; 2) according to weather parameters and operation information, by fuzzy algorithm, dope with energy curve; 3) coupling electric price parameter and operation constraint condition; 4) calculate the minimum target optimization of paying the fees and solve scheme; 5) according to this optimization solution scheme, control and feed back.
In one embodiment, described optimization solution scheme has comprised following steps:
1) by family's parallel network power generation, monitor or the system such as Smart Home, obtain the power load data of each electric appliances in family, obtain weather data, and data are stored, complete data and prepare;
2) utilize known historical electricity consumption data, weather history data, find out the correlationship between dependent variable and independent variable, set up mathematical model, obtaining model parameter then utilizes residual error, relative error or absolute error etc. to test to model, when model testing is passed through, can utilize the current data of this models coupling and weather forecasting generation load next day curve;
3) the Spot Price information of issuing by grid company, obtains the prediction day part electricity price of day, forms electricity price piecewise function;
4), under the state of being incorporated into the power networks, the exchange of the familial distribution of cases formula energy and the electrical network energy, need to meet the restriction of circuit capacity;
5) according to the operating characteristic of each electrical equipment of family, summarize non-can time shift consumer, and according to its power loads of dependent variable data prediction such as its historical load, non-can time shift load;
6) starting can the planning analysis of time shift load adjustment, calculates in the situation of minimum electricity cost the load control program that each can time shift electrical equipment;
7), according to the control program of calculating gained, all running statuses at each time phase that can time shift consumer, carry out electricity consumption adjustment to household electrical appliance.
Technical scheme 2: the distributed photovoltaic supervisory system electrical measurement of generating electricity by way of merging two or more grid systems, it is arranged in the mechanical floor and sensor layer of technical scheme 1, having comprised:
Power supply unit, works by obtaining DC power supply measurement mechanism after carrying out power taking voltage stabilizing to 220V civil power;
Signal acquisition part, obtains and can calculate signal line voltage and electric current collection;
Metering portion, connects described signal acquisition part so that voltage and current signal is carried out to bidirectional measuring calculating; And
Main signal handling part, connects described metering portion so that continuous data is processed; It further comprises:
Association's signal processing part, is gathered line voltage and current signal and is carried out quick FFT transformation calculations and analysis by described signal acquisition part, the expansion macrooperation amount unit of usining as described metering portion and main signal handling part;
Data display part, comprises the lattice lcd display part that connects the segment liquid crystal display part of described primary processor and connect described association signal processing part, to be respectively its grade, shows corresponding data message; Wherein
Described main signal handling part and association's signal processing part are connected to respectively a data store with according to internal clock signal real time access data, and described power supply unit accesses respectively metering portion, main signal handling part and association's signal processing part and operating voltage support is provided for it.
In one embodiment, design described association signal processing part to carry out step: the standards of grading of the self-defined measuring parameter of 1) storing in reading out data storage part; 2) read the electric energy data of Real-time Collection; 3) electric energy data mass metrology parameter is contrasted and passed judgment on; 4) when the quality of sending into electrical network when outside inverter does not meet grid-connected condition and reaches alarming threshold value, to described lattice lcd display part output alarm signal; 5) when the quality of electrical network does not meet grid-connected condition and reaches cut-out threshold values, to described main signal handling part, send and cut off name; 6) control after described main signal handling part receives cut-out name and disconnect inverter output, stop powering to electrical network inversion.
By the application to native system, embody the economical and practical of input and output, and can accomplish make full use of and merge, realized distributed photovoltaic power generation is monitored and analyzed at interior new forms of energy, secondly the use of this system also broken away from large to the construction investment of distributed photovoltaic power generation surveillance, implement difficult problem, meet current situation, fill up the whole nation to distributed photovoltaic power generation surveillance blank, be conducive to booster tension qualification rate and load prediction accuracy.
This system is classified new forms of energy, more all kinds of new-energy grid-connected points are summarised on an interface, makes accumulative total, this month, the yesterday electric weight of interfacial energy reflection each point, can inquire about the generated energy of fixed time section simultaneously.
Distributed photovoltaic of the present invention generate electricity by way of merging two or more grid systems supervisory system by electrical measurement for coordinating the new energy grid-connected power supervisory system of exploitation based on real-time data base, can realize the monitoring to each and the grid-connected electric weight in site, realize family's rational utilization of electricity, reduce electric cost.
Accompanying drawing explanation
Fig. 1 schematically shows the distributed photovoltaic of the present invention supervisory system configuration diagram of generating electricity by way of merging two or more grid systems;
Fig. 2 A is the schematic diagram of socket;
Fig. 2 B is network adapter schematic diagram;
Fig. 3 is the distributed photovoltaic schematic diagram of electrical measurement for supervisory system that generates electricity by way of merging two or more grid systems.
Embodiment
With reference to the supervisory system configuration diagram of generating electricity by way of merging two or more grid systems of the distributed photovoltaic shown in Fig. 1, it is the mechanical floor 100 by communication is coupled successively, sensor layer 200, Communication Layer 300 and system key-course 400 form, wherein mechanical floor 100 has preferably comprised and has been installed on the indoor user of subscriber household with the distribution type photovoltaic power generation device 11 of can equipment 10 and being attached thereto, described sensor layer 200 is configured to gateway and interactive terminal, be used for connecting user with can equipment 10 and distributed energy Blast Furnace Top Gas Recovery Turbine Unit (TRT) 11 and user's energy consumption is measured and energy supply/use can be controlled, described Communication Layer 300 is configured to connect WLAN or the GPRS LAN between described sensor layer 200 and system key-course 400, gateway is set to socket 20 or electrical measurement, system key-course 400 is to be set to parallel network power generation supervisory system and with can information acquisition system 40.
With reference to Fig. 2 A and 2B, socket 20 comprises: socket 21, is used to user with providing electric power source by equipment; Power taking end 201, connects electrical network 220V Alternating Current Power Supply line to obtain electric power; Energy supply sampling portion 204, is arranged between described socket 21 and power taking end 201, for energy supply signal is sampled and is converted to, can calculate signal; I/O interface portion 208, connects described energy supply sampling portion 204, and further connects signal processing part 205 and a network adapter 206 that is arranged at described socket 20 inside, and wherein network adapter 206 is for by antenna assembly 207 connecting communication layers 300.
In one embodiment, described socket 21 comprises outlet 203 and network outlet 204.
In Fig. 2 B, network adapter 206 preferably comprises: connect the Ethernet switch 216 of described network outlet 202, it further connects described I/O interface portion 208; The PLC medium access control part 226 that connects described Ethernet switch 216, for respectively carrying out addressing and data access by the interface message of energy equipment by this subscriber equipment according to the user of each network outlet access; With the AFE (analog front end) 236 that described PLC medium access control part 226 is of coupled connections, it has a step-down portion to connect described power taking end 201, and described signal processing part 205 connects described Ethernet switch 216 by I/O interface portion 208.Meanwhile, be further arranged on a switch 209 between line of electric force and outlet 203, for directly controlling the break-make of socket 21.
In one embodiment, design described system key-course 400 to carry out following parallel network power generation policer operation: 1) gather the current by energy data of each collection point; 2) according to weather parameters and operation information, by fuzzy algorithm, dope with energy curve; 3) coupling electric price parameter and operation constraint condition; 4) calculate the minimum target optimization of paying the fees and solve scheme; 5) according to this optimization solution scheme, control and feed back.
With reference to Fig. 3, the distributed photovoltaic supervisory system of generating electricity by way of merging two or more grid systems is arranged in described mechanical floor 100 and sensor layer 200 by electrical measurement, having comprised:
Power supply unit 301, works by obtaining DC power supply measurement mechanism after carrying out power taking voltage stabilizing to 220V civil power;
Signal acquisition part 302, obtains and can calculate signal line voltage and electric current collection;
Metering portion 303, connects described signal acquisition part so that voltage and current signal is carried out to bidirectional measuring calculating; And main signal handling part 304, connect described metering portion 303 so that continuous data is processed; It further comprises: association's signal processing part 305, is gathered line voltage and current signals and carried out quick FFT transformation calculations and analysis by described signal acquisition part 302, the expansion macrooperation amount unit of usining as described metering portion 303 and main signal handling part 304;
Data display part, comprises the lattice lcd display part 307 that connects the segment liquid crystal display part 306 of described primary processor and connect described association signal processing part, to be respectively its grade, shows corresponding data message; Wherein said main signal handling part 304 and association's signal processing part 305 are connected to respectively a data store 308 with according to internal clock signal real time access data, and described power supply unit 301 accesses respectively metering portion 303, main signal handling part 304 and association's signal processing part 305 and operating voltage support is provided for it.
In one embodiment, design described association signal processing part 304 to carry out step: the standards of grading of the self-defined measuring parameter of 1) storing in reading out data storage part; 2) read the electric energy data of Real-time Collection; 3) electric energy data mass metrology parameter is contrasted and passed judgment on; 4) when the quality of sending into electrical network when outside inverter does not meet grid-connected condition and reaches alarming threshold value, to described lattice lcd display part output alarm signal; 5) when the quality of electrical network does not meet grid-connected condition and reaches cut-out threshold values, to described main signal handling part, send and cut off name; 6) control after described main signal handling part receives cut-out name and disconnect inverter output, stop powering to electrical network inversion.
Claims (7)
1. the distributed photovoltaic supervisory system electrical measurement of generating electricity by way of merging two or more grid systems, being arranged at distributed photovoltaic generates electricity by way of merging two or more grid systems in the mechanical floor and sensor layer of supervisory system, comprised: power supply unit, by obtaining DC power supply measurement mechanism after carrying out power taking voltage stabilizing to 220V civil power, work; Signal acquisition part, obtains and can calculate signal line voltage and electric current collection; Metering portion, connects described signal acquisition part so that voltage and current signal is carried out to bidirectional measuring calculating; And main signal handling part, connect described metering portion so that continuous data is processed; It is characterized in that further comprising: association's signal processing part, is gathered line voltage and current signal and carried out quick FFT transformation calculations and analysis by described signal acquisition part, the expansion macrooperation amount unit of usining as described metering portion and main signal handling part; Data display part, comprises the lattice lcd display part that connects the segment liquid crystal display part of described primary processor and connect described association signal processing part, to be respectively its grade, shows corresponding data message; Wherein: described main signal handling part and association's signal processing part are connected to respectively a data store with according to internal clock signal real time access data, and described power supply unit accesses respectively metering portion, main signal handling part and association's signal processing part and operating voltage support is provided for it.
2. according to claim 1 minute by cloth formula parallel network power generation supervisory system electrical measurement, it is characterized in that designing described association signal processing part to carry out step: the standards of grading of the self-defined measuring parameter of 1) storing in reading out data storage part; 2) read the electric energy data of Real-time Collection; 3) electric energy data mass metrology parameter is contrasted and passed judgment on; 4) when the quality of sending into electrical network when outside inverter does not meet grid-connected condition and reaches alarming threshold value, to described lattice lcd display part output alarm signal; 5) when the quality of electrical network does not meet grid-connected condition and reaches cut-out threshold values, to described main signal handling part, send and cut off name; 6) control after described main signal handling part receives cut-out name and disconnect inverter output, stop powering to electrical network inversion.
3. the distributed photovoltaic according to claim 1 supervisory system electrical measurement of generating electricity by way of merging two or more grid systems, it is characterized in that: the described distributed photovoltaic mechanical floor of supervisory system by the coupling of communication successively that generate electricity by way of merging two or more grid systems, sensor layer, Communication Layer and system key-course form, wherein said mechanical floor has comprised that the user that is installed in family room is with the distributed photovoltaic energy source electric generating device of can equipment and being attached thereto, described sensor layer is configured to gateway and interactive terminal, be used for connecting user with can equipment and distributed photovoltaic energy source electric generating device and user's energy consumption is measured and energy supply/use can be controlled, described Communication Layer is configured to connect the LAN between described sensor layer and system key-course, described gateway is to be set to socket or electrical measurement, described system key-course is to be set to parallel network power generation supervisory system and with can information acquisition system.
4. the distributed photovoltaic according to claim 3 supervisory system electrical measurement of generating electricity by way of merging two or more grid systems, is characterized in that described socket comprises: socket, is used to user with providing electric power source by equipment; Power taking end, connects electrical network Alternating Current Power Supply line to obtain electric power; Energy supply sampling portion, is arranged between described socket and power taking end, for energy supply signal is sampled and is converted to, can calculate signal; I/O interface portion, connects described energy supply sampling portion, and further connects signal processing part and a network adapter that is arranged at described socket inside, and wherein said network adapter is for by antenna assembly connecting communication layer.
5. the distributed photovoltaic according to claim 4 supervisory system electrical measurement of generating electricity by way of merging two or more grid systems, is characterized in that: described socket comprises outlet and network outlet.
6. according to the supervisory system electrical measurement of generating electricity by way of merging two or more grid systems of the distributed photovoltaic described in claim 3 or 4, it is characterized in that: described network adapter comprises: connect the Ethernet switch of described network outlet, it further connects described I/O interface portion; The PLC medium access control part that connects described Ethernet switch, for respectively carrying out addressing and data access by the interface message of energy equipment by this subscriber equipment according to the user of each network interface access; With the AFE (analog front end) that described PLC medium access control part is of coupled connections, it has a step-down portion to connect described power taking end, and described signal processing part connects described Ethernet switch by I/O interface portion.
7. the distributed photovoltaic according to claim 3 supervisory system electrical measurement of generating electricity by way of merging two or more grid systems, is characterized in that: design described system key-course to carry out following parallel network power generation policer operation: what 1) gather each collection point is current with can data; 2) according to weather parameters and operation information, by fuzzy algorithm, dope with energy curve; 3) coupling electric price parameter and operation constraint condition; 4) calculate the minimum target optimization of paying the fees and solve scheme; 5) according to this optimization solution scheme, control and feed back.
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| CN201410328349.8A CN104166387A (en) | 2014-07-10 | 2014-07-10 | Distributed photovoltaic grid-connected generation monitoring system power consumption measurement apparatus |
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| CN201410328349.8A CN104166387A (en) | 2014-07-10 | 2014-07-10 | Distributed photovoltaic grid-connected generation monitoring system power consumption measurement apparatus |
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Cited By (2)
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| CN106403010A (en) * | 2016-11-24 | 2017-02-15 | 秦皇岛绿新节能环保科技有限公司 | Electric heating metering control system |
| CN108134403A (en) * | 2017-12-29 | 2018-06-08 | 国网甘肃省电力公司电力科学研究院 | The micro- energy dispatching method that can be netted of industrialized agriculture and system |
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| US20070271006A1 (en) * | 2006-05-18 | 2007-11-22 | Gridpoint, Inc. | Modular energy control system |
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