CN105552918B - Power distribution system under micro-capacitance sensor isolated island environment - Google Patents

Power distribution system under micro-capacitance sensor isolated island environment Download PDF

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Publication number
CN105552918B
CN105552918B CN201610100090.0A CN201610100090A CN105552918B CN 105552918 B CN105552918 B CN 105552918B CN 201610100090 A CN201610100090 A CN 201610100090A CN 105552918 B CN105552918 B CN 105552918B
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mrow
msub
electricity price
power source
micro
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CN105552918A (en
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刘亚
许银亮
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SYSU CMU Shunde International Joint Research Institute
National Sun Yat Sen University
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SYSU CMU Shunde International Joint Research Institute
National Sun Yat Sen University
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J13/0075—
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/62—The condition being non-electrical, e.g. temperature
    • H02J2310/64—The condition being economic, e.g. tariff based load management
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/388—Islanding, i.e. disconnection of local power supply from the network
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

The present invention relates to the power distribution system under a kind of micro-capacitance sensor isolated island environment, including：First power measurement module, the second power measurement module, communication module and control module；First power measurement module is used for the first energy data for measuring user load described in initial time, and first energy data is sent into the control module by the communication module；Second power measurement module is used for the second energy data for measuring distributed power source described in initial time, and second energy data is sent into the control module by the communication module；The control module is used for the electricity price value of the distributed power source according to first energy data and the second energy data determine initial time, by the electricity price value of the distributed power source compared with the default electricity price value of each user load, and power output of the distributed power source to each user load is controlled according to comparative result.

Description

Power distribution system under micro-capacitance sensor isolated island environment
Technical field
The present invention relates to technical field of power systems, more particularly to the power distribution system under a kind of micro-capacitance sensor isolated island environment System.
Background technology
With the development of social economy and the growth of energy resource consumption, traditional power generation can not meet society's electricity consumption Growth, while the problems such as also face energy shortage, system aging, environmental pollution.Micro-capacitance sensor is relatively conventional bulk power grid One concept, refer to the network that multiple distributed power sources and its related load form according to certain topological structure, and by quiet State switch is associated to normal grid.Micro-capacitance sensor have flexibly, efficiently, environmental protection and the advantages such as the energy is various, it mainly by point The controllable of cloth power supply, load and energy-storage system composition.The it is proposed of micro-capacitance sensor aims to solve the problem that the subregion of supply of electric power just The Upgrade Problem of nearly balance and power supply quality.This means power generation configuration is uniform, voltage class is low, level is few, and electric power is defeated Send apart from short, thus its potential advantage be power network electric energy loss is small, reduced investment, power supply reliability are high, effect on environment compared with It is small.
The micro-capacitance sensor hair electric power system small and comprehensive as one, a large amount of technical problems be present needs to solve, such as distributed Power supply is distributed rationally, distributed power source, load, energy storage device and the coordination control between micro-grid system etc..Wherein assist It is a difficult point in the research of isolated island micro-capacitance sensor to adjust control problem.When micro-capacitance sensor is connected with main power network operation, micro-capacitance sensor can be with Electric energy is obtained from main power network, electric energy can also be conveyed to main power network.Under this operational mode, the electricity supply and demand balance of micro-capacitance sensor Major network can be somewhat dependent on.
However, when micro-capacitance sensor islet operation, intermittent very strong regenerative resource is run and controlled to micro-capacitance sensor and proposes New challenge is maintained micro-, it is necessary to advanced control technology coordinates the unit in micro-capacitance sensor and ensures that electricity supply and demand balances The stable operation of power network.Current research is the power distribution being directed under micro-grid connection state mostly, this technology is straight Scoop out power distribution during for power network islet operation, it is difficult to coordinate the unit in micro-capacitance sensor and ensure that electricity supply and demand is put down Weighing apparatus, power distribution effect are poor.
The content of the invention
Based on this, it is necessary to for power distribution effect it is poor the problem of, there is provided the work(under a kind of micro-capacitance sensor isolated island environment Rate distribution system.
A kind of power distribution system under micro-capacitance sensor isolated island environment, including：
First power measurement module, the second power measurement module, communication module and control module；
First power measurement module is connected with user load, under second power measurement module and isolated island environment The distributed power source of micro-capacitance sensor be connected, first power measurement module and the second power measurement module pass through the communication Module is connected with the control module；
First power measurement module is used for the first energy data for measuring user load described in initial time, and passes through First energy data is sent to the control module by the communication module；
Second power measurement module is used for the second energy data for measuring distributed power source described in initial time, and leads to Cross the communication module and second energy data is sent to the control module；
The control module is used to divide according to first energy data and the second energy data determine initial time The electricity price value of cloth power supply, by the electricity price value of the distributed power source compared with the default electricity price value of each user load, And power output of the distributed power source to each user load is controlled according to comparative result.
Power distribution system under above-mentioned micro-capacitance sensor isolated island environment, by the first energy data of the user load measured The electricity price value of distributed power source described in initial time is determined with the second energy data of distributed power source, according to the distributed electrical The comparative result of the electricity price value in source and the default electricity price value of each user load controls the distributed power source to bear each user The power output of load, the power distribution of control micro-capacitance sensor in the case where meeting to load energy normal operation, can be coordinated, coordinated micro- Unit in power network simultaneously ensures that electricity supply and demand balances, and so as to reach the maximization of whole local microenvironment power network resources benefit, carries Power distribution effect under high micro-capacitance sensor isolated island environment.
Brief description of the drawings
Fig. 1 is the structural representation of the power distribution system under the micro-capacitance sensor isolated island environment of the present invention；
Fig. 2 is the schematic diagram of the network topology communication between each node of the present invention.
Embodiment
The embodiment of the power distribution system under the micro-capacitance sensor isolated island environment of the present invention is illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the power distribution system under the micro-capacitance sensor isolated island environment of the present invention.As shown in figure 1, this Power distribution system under the micro-capacitance sensor isolated island environment of invention may include：
First power measurement module 10, the second power measurement module 20, communication module 30 and control module 40；
First power measurement module 10 is connected with user load, second power measurement module 20 and isolated island ring The distributed power source of micro-capacitance sensor under border is connected, and the power measurement module 20 of the first power measurement module 10 and second passes through The communication module 30 is connected with the control module 40；
First power measurement module 10 is used for the first energy data for measuring user load described in initial time, and leads to Cross the communication module 30 and first energy data is sent to the control module 40；
Second power measurement module 20 is used for the second energy data for measuring distributed power source described in initial time, and Second energy data is sent to by the control module 40 by the communication module 30；
The control module 40 is used for according to first energy data and the second energy data determine initial time The electricity price value of distributed power source, the electricity price value of the distributed power source and the default electricity price value of each user load are compared Compared with, and power output of the distributed power source to each user load is controlled according to comparative result.
Herein, the communication module can be ZIGBEE modules, can be communicated by the ZIGBEE communication technologys.It is actual In situation, number of users is more, and the network topology structure of micro-capacitance sensor is complicated, in order to more preferably illustrate the method for the present invention, with such as Fig. 2 institutes The network structure shown illustrates.In fig. 2, totally 4 nodes, wherein, a node is distributed power source, and remaining 3 is are used The load at family, node 1 (such as small-sized electrical equipment unit) are used as telegon, and node 2, node 3 and node 4 are the load in user's group, are pressed Lighting system block diagram, can be as follows by the topological communication definitions between node：
(1) it is more stable (ring topology routing function) using clockwise network topology structure, so this paper network is opened up Flutter be defined as clockwise, but reality application environment it is more complicated spread, can be according to geographical position adjustment network topology structure.
(2) in fig. 2, for node 1, its adjacent node has 2,3,4, and node 2, node 3 and node 4 are used as router, Ensure that node 1 can be communicated by routing addressing with node 3 and node 4.
(3) due to herein using specific network topology structure clockwise, on space length, our definition node 2, sections Point 3 and the distance between node 4 and node 1 are more and more remote, that is, ensure the up time of communication.
Four nodes in Fig. 2 correspond to corresponding distributed micro battery and domestic loads respectively, and its interior joint 1 is distribution Micro battery, its excess-three is user load, for load, rj refFor the adjacent of j-th of distributed power source in micro-capacitance sensor The default electricity price value of user load, the r in distributed micro battery is sale of electricity electricity price, first power measurement module and the second work( Rate measurement module is ADE7753 power collection modules, can not only calculate the initial electricity price of egress 1, can also synchronization control module The electric energy service condition of remaining load is monitored, while data message is sent to adjacent node by the initial time of node 1, wherein counting It is believed that breath includes the parameters such as ID, r of node.It can obtain the destination address of each user load by control module 40, and according to Electricity price value of the distributed power source in initial time is sent to each user load by the destination address.
Node 1 is as telegon and is added in initial time building network, and by all networks in the network, node Electricity price data and relevant parameter are sent to destination node 2 by 1 in initial time, when node 2 acknowledges receipt of the data message of node 1 When, by the electricity price of node 1, (when distributed power source is customer power supply, user can be according to selling compared with the expectation electricity price of node 2 The electricity price that electricity side provides makes corresponding response, and as figure interior joint 1 represents distributed micro battery, node 2 is user load, works as section When point 1 sends sale of electricity price r to node 2, node 2 can make contrast according to sale of electricity electricity price and itself desired electricity price, so as to Determine to be worked on indoor load or disconnected node 1 (micro battery) provides electric energy for it.If for example, distributed electrical The electricity price value in source is more than the default electricity price value of the user load of node 2, and the control module controls the distributed power source to stop To the user load power output of node 2；If the electricity price value of the distributed power source is less than or equal to the user load of node 2 Default electricity price value, the control module control the distributed power source to continue the user load power output to node 2.
Under micro-capacitance sensor isolated island environment, a community user may contain many distributed micro batteries and multiple users, institute Can be the adjacent node of node 1 or the adjacent node of other nodes with node 2, the node 1 being discussed herein it is adjacent Node only has 2,3 and 4 situation.Electricity price desired value can be reached by optimizing electricity price method, realize the electric energy distribution of local system most Optimization, then extends to whole system.Node 1 being realized to, optimizing electricity price method is once defined as a cycle, specific steps are such as Under：
Step 1：By data message, (destination address, electricity price r) are transmitted to node 2 to node 1 (distributed micro battery).
Step 2：Read the electricity price information of node 1 and compared in the expectation electricity price of node 2, used when the electricity price of sale of electricity is more than During the desired electricity price in family, L1=0 (without counting, user disconnects related load) can be obtained, when the sale of electricity electricity price of node 1 is less than section 1 (count is incremented, and user is continuing with loading L1=1) is put during the expectation electricity price of 2 (users) of point.
Step 3：The adjacent node of this paper nodes 1 is 2,3 and 4, and node 2, node 3 and node 4 are used as router, in node After 1 communicates relatively with node 2, communicated by routing addressing node 1 with node 3, similarly, by the electricity price of node 1 and the phase of node 3 Hope electricity price compare, can must be less than then L1=2, L1=1 on the contrary continues to keep constant, similarly node 4.
Wherein, ri[t+1] is electricity price value of i-th of distributed power source at the t+1 moment in micro-capacitance sensor,For micro-capacitance sensor In i-th of distributed power source j-th of neighboring user load with micro-capacitance sensor i-th of Distributed Power Communication counting phase Summed values, f are discriminant function, rj refThe default electricity price loaded for the neighboring user of j-th of distributed power source in micro-capacitance sensor Value.
Step 4：After a circulation, Li value is issued node 1 by node 4 by unicast communications, and node 1 counts L1 Value, the control module may be updated the electricity price value of the distributed power source, continues cycling through down.The mode of renewal specifically may be used For：
Wherein, ri[t] is electricity price value of i-th of the distributed power source in micro-capacitance sensor in t, and k is constant, LrefTo be pre- If constant.
As above all steps terminate as a cycle, for load, as node 2 can be with remaining nodes sharing (micro- electricity Source) function, in addition to other distributed micro battery, elaborates emphatically a micro battery (node 1) herein and three load Orthofunction problem, circulative metabolism is judged to coordinate the dispensing of energy by the electricity price of sale of electricity and electricity consumption side, it is whole so as to coordinate The energy assignment problem of mini system, the system then extended under whole micro-capacitance sensor isolated island.Control module is each by reading simultaneously Address of node information understands the electric energy service condition of particular user.
Compared with prior art, the application has advantages below：
(1) on hardware, power measurement module is formed using computation chip ADE7753 and ZIGBEE modules, not only can be with The metering of electric energy is realized, can also draw the electricity price initial value of distributed micro battery.
(2) special network topology knot is used between user and user, in user and distributed power source and distributed power source Structure (present invention has more preferable routing addressing function using specific topological structure clockwise), pass through optimizing between each node Electricity price method.Only need the electricity price information of adjacent node and compare to draw system power optimum allocation.
(3) software and hardware module is connected, simulation application is in intelligent grid, so that micro-capacitance sensor isolated island environment Under maximizing the benefits.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (5)

  1. A kind of 1. power distribution system under micro-capacitance sensor isolated island environment, it is characterised in that including：
    First power measurement module, the second power measurement module, communication module and control module；
    First power measurement module is connected with user load, second power measurement module with it is micro- under isolated island environment The distributed power source of power network is connected, and first power measurement module and the second power measurement module pass through the communication module It is connected with the control module；
    First power measurement module is used for the first energy data for measuring user load described in initial time, and by described First energy data is sent to the control module by communication module；
    Second power measurement module is used for the second energy data for measuring distributed power source described in initial time, and passes through institute State communication module and second energy data is sent to the control module；
    The control module is used for distributed according to first energy data and the second energy data determine initial time The electricity price value of power supply, by the electricity price value of the distributed power source compared with the default electricity price value of each user load, and root Power output of the distributed power source to each user load is controlled according to comparative result；
    The control module is additionally operable to update the electricity price value of the distributed power source according to the default electricity price value of each user load, Specifically, the control module updates the electricity price value of the distributed power source according to equation below：
    <mrow> <msub> <mi>r</mi> <mi>i</mi> </msub> <mo>&amp;lsqb;</mo> <mi>t</mi> <mo>+</mo> <mn>1</mn> <mo>&amp;rsqb;</mo> <mo>=</mo> <msub> <mi>r</mi> <mi>i</mi> </msub> <mo>&amp;lsqb;</mo> <mi>t</mi> <mo>&amp;rsqb;</mo> <mo>+</mo> <mi>k</mi> <mrow> <mo>(</mo> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>j</mi> <mo>=</mo> <mn>1</mn> </mrow> <mrow> <mi>j</mi> <mo>&amp;Element;</mo> <mi>i</mi> </mrow> </munderover> <msub> <mi>L</mi> <mi>j</mi> </msub> <mo>-</mo> <msup> <mi>L</mi> <mrow> <mi>r</mi> <mi>e</mi> <mi>f</mi> </mrow> </msup> <mo>)</mo> </mrow> <mo>;</mo> </mrow>
    Wherein,
    <mrow> <mtable> <mtr> <mtd> <mrow> <msub> <mi>L</mi> <mi>j</mi> </msub> <mo>=</mo> <mi>f</mi> <mrow> <mo>(</mo> <mrow> <mi>r</mi> <mrow> <mo>(</mo> <mrow> <mi>t</mi> <mo>+</mo> <mn>1</mn> </mrow> <mo>)</mo> </mrow> </mrow> <mo>)</mo> </mrow> <mo>=</mo> <mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <mrow> <mn>1..........</mn> <msub> <mi>r</mi> <mi>i</mi> </msub> <mrow> <mo>&amp;lsqb;</mo> <mrow> <mi>t</mi> <mo>+</mo> <mn>1</mn> </mrow> <mo>&amp;rsqb;</mo> </mrow> <mo>&amp;le;</mo> <msup> <msub> <mi>r</mi> <mi>j</mi> </msub> <mrow> <mi>r</mi> <mi>e</mi> <mi>f</mi> </mrow> </msup> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mn>0..........</mn> <msub> <mi>r</mi> <mi>i</mi> </msub> <mrow> <mo>&amp;lsqb;</mo> <mrow> <mi>t</mi> <mo>+</mo> <mn>1</mn> </mrow> <mo>&amp;rsqb;</mo> </mrow> <mo>&amp;le;</mo> <msup> <msub> <mi>r</mi> <mi>j</mi> </msub> <mrow> <mi>r</mi> <mi>e</mi> <mi>f</mi> </mrow> </msup> </mrow> </mtd> </mtr> </mtable> </mfenced> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <munderover> <mi>&amp;Sigma;</mi> <mrow> <mi>j</mi> <mo>=</mo> <mn>1</mn> </mrow> <mrow> <mi>j</mi> <mo>&amp;Element;</mo> <mi>i</mi> </mrow> </munderover> <msub> <mi>L</mi> <mi>j</mi> </msub> <mo>=</mo> <munder> <mi>&amp;Sigma;</mi> <mi>j</mi> </munder> <msub> <mi>L</mi> <mi>j</mi> </msub> </mrow> </mtd> </mtr> </mtable> <mo>;</mo> </mrow>
    In formula, ri[t+1] is i-th of distributed power source in micro-capacitance sensor in the electricity price value at t+1 moment, ri[t] is in micro-capacitance sensor For i-th of distributed power source in the electricity price value of t, k is constant,For j-th of i-th of distributed power source in micro-capacitance sensor Neighboring user loads the phase summed values counted with i-th of Distributed Power Communication in micro-capacitance sensor, LrefFor default constant, f For discriminant function,The default electricity price value loaded for the neighboring user of j-th of distributed power source in micro-capacitance sensor.
  2. 2. the power distribution system under micro-capacitance sensor isolated island environment according to claim 1, it is characterised in that the control mould Root tuber controls power output of the distributed power source to each user load according to following manner：
    If the electricity price value of the distributed power source is more than the default electricity price value of user load, the control module controls the distribution Formula power supply stops the user load power output to relative users；
    If the electricity price value of the distributed power source is less than or equal to the default electricity price value of user load, the control module controls institute State distributed power source and continue user load power output to relative users.
  3. 3. the power distribution system under micro-capacitance sensor isolated island environment according to claim 1, it is characterised in that first work( Rate measurement module and the second power measurement module are ADE7753 power collection modules.
  4. 4. the power distribution system under micro-capacitance sensor isolated island environment according to claim 1, it is characterised in that the communication mould Block is ZIGBEE modules.
  5. 5. the power distribution system under micro-capacitance sensor isolated island environment according to claim 1, it is characterised in that the control mould Block is additionally operable to：
    Obtain the destination address of each user load, and according to the destination address by the distributed power source in initial time Electricity price value is sent to each user load.
CN201610100090.0A 2016-02-23 2016-02-23 Power distribution system under micro-capacitance sensor isolated island environment Active CN105552918B (en)

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