CN106786537A - Urban distribution network regulator control system and regulation and control method based on energy internet - Google Patents
Urban distribution network regulator control system and regulation and control method based on energy internet Download PDFInfo
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- 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
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- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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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
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- 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
- Y04S40/128—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 involving the use of Internet protocol
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Abstract
The present invention discloses a kind of urban distribution network regulator control system based on energy internet, comprising：Distribution automation system, distribution network structural database, urban distribution network are to the Optimum Regulation module of various distributed power sources, control object selecting module, human-computer interaction module and communication interface modules.The present invention propose based on impedance equation and over the ground the urban distribution network point under the calculation of distribution network model of equation and power network Optimal regulation and control computation model to various distributed power source Optimum Regulation computation models, and carry out distributed power source Optimum Regulation calculating using computation model, the regulation and control method of urban distribution network optimising and adjustment control strategy under formation energy Background of Internet, regulating and controlling method with this can make of the invention quick to calculate and form urban distribution network Optimum Regulation strategy under energy Background of Internet, the solution efficiency of urban distribution network regulator control system under raising energy Background of Internet, improve arithmetic speed, it is finally reached reduction via net loss, improve the purpose of power distribution system secure economical operation.
Description
Technical field
The present invention relates to energy Internet technical field, the urban distribution network regulation and control system more particularly to based on energy internet
System and regulation and control method.
Background technology
In recent years, increasingly serious with problem of environmental pollution, tradition has depended on the growth pattern of non-renewable resources
Through that can not maintain China's socio-economic development, the fossil energy epoch with oil and coal as core close to an end, and China will
What is faced is new energy and fossil energy complementation " energy mix epoch ".In this case, China is needed badly with new round skill
Art revolution, Industrial Revolution are fulcrum, are more intensive, sustainable development pattern from the past extensive Development Mode Change.From
Energy angle says that following energy internet not only includes electric energy and power system, the tradition also including coal, oil, natural gas etc.
The clean energy resource such as fossil energy and wind, light；Said from network perspective, it is also many including oil gas net, heating network etc. not only including power network
The network structure of the form of kind.Energy internet should be based on Internet technology, centered on power system, by power train
System and the close-coupled such as natural gas network, heating network and industry, traffic, building system, laterally realize electricity, air and heat, can be again
" source net lotus storage " each link hight coordinate is realized in raw energy etc. " multi-source is complementary ", longitudinal direction, production and consumption two-way interaction, concentrate with
The energy services network that distribution is combined.
Research both at home and abroad for energy internet at present has been achieved for some achievements：There is Literature Discussion energy interconnection
New distribution net off the net and its relevant control, and analyzed in terms of basic function, system architecture, communicating requirement 3 new
The characteristics of power distribution network；In a distributed manner based on renewable energy power generation, establish comprising distributed energy, energy storage device, intelligence
The energy internet system of the compositions such as terminal；Set up the basic model of energy router, it is indicated that flexible DC power transmission, DC distribution
It is to develop the direction that energy internet needs breakthrough badly etc. technology；The demand driving effect of energy internet and present Research are carried out
Analysis, and set up the technological frame model of energy internet；Application value of the flexible direct current technology in energy internet is entered
Row is inquired into, and proposes 2 kind application schemes of the flexible direct current technology in future source of energy internet；Using Complex Networks Theory, from
Macrostructure angle sets up energy internet topological model, for the design and optimization of follow-up study energy internet system provides ginseng
Examine.
It is existing research major part be all analysis both at home and abroad with represent meaning energy internet blank on the basis of,
The necessity of concept, technological frame, topological model and the development energy internet of energy internet is discussed, but also not from
The angle of the Regulation under energy Background of Internet goes to study influence and the problem that energy internet may bring.
The content of the invention
The invention provides a kind of urban distribution network regulator control system based on energy internet and regulation and control method, improve in the energy
The degree of accuracy of the urban distribution network to the solution efficiency and solution of various distributed power source Optimum Regulation system-computeds, carries under Background of Internet
The overall work effect of the various distributed power source Optimum Regulation systems of urban distribution network high.
To achieve the above object, the present invention provides a kind of urban distribution network regulator control system based on energy internet, its feature
It is that the system is included：
Distribution automation system, it power distribution network history data value and matches somebody with somebody under obtaining typical case's operation day under current time
The real-time running data of power network；
Distribution network structural database, it obtains power distribution network branch parameters；
Each node voltage of power distribution network under Optimum Regulation module, its typical case's operation day for receiving distribution automation system output
Historical data values, the active power value of each node injection and reactive power value are as urban distribution network to various distributed electrical source optimizations
At the beginning of the voltage initial calculation value of regulation and control, the distribution network computation model constituted using based on impedance equation and over the ground equation and voltage
Beginning calculated value calculates the electric current initial value of each bar branch road of power distribution network, using Initial Voltage Value, each branch current initial value, distribution
The regulation and control of Optimal Distribution formula power supply and the inferior iterative algorithm of newton pressgang that optimized model of power source is solved calculate the new of each branch current
Value, and according to each branch current difference newly between value and each branch current initial value using based on impedance equation and equation over the ground
Urban distribution network computation model formed urban distribution network to various distributed power source Optimum Regulation strategies；
Control object selecting module, its connection Optimum Regulation module output end, there is provided dispatcher is carried out to operation object
Selection, sends control command；
Human-computer interaction module, its connection control object selecting module output end, the urban distribution network that output is calculated is to various
Distributed power source Optimum Regulation strategy and each artificial intelligence；
Communication interface modules, its connection human-computer interaction module output end, there is provided logical between distribution automation system
Letter interface, the distribution automation system is passed to by control command.
Power distribution network history data value is included under above-mentioned typical case's operation day：The corresponding distribution of typical case's operation day typical time
Net each node voltage history run value, power distribution network each node injection active power value and reactive power value；
The real-time running data of power network is included under above-mentioned power distribution network current time：Each node voltage of power distribution network under current time
Runtime value and each node inject active magnitude of power.
Above-mentioned power distribution network branch parameters are included：Each node type of power distribution network, the active power supply of each node of power distribution network are exerted oneself maximum
Value and minimum value, each node reactive power source are exerted oneself maximum and minimum value, node serial number, and branch number.
A kind of regulation and control method of the above-mentioned urban distribution network regulator control system based on energy internet, is characterized in, the regulation and control side
Method is included：
S1, distribution automation system power distribution network history data value and are matched somebody with somebody under obtaining typical case's operation day under current time
The real-time running data of power network, distribution network structural database obtains power distribution network branch parameters, the end that setting Optimized Iterative is calculated
Only judge parameter value ε；
S2, Optimum Regulation module receive each node voltage historical data values of power distribution network, the injection of each node under typical case's operation day
Active power value and reactive power value, as urban distribution network to the voltage initial calculation of various distributed power source Optimum Regulations
Value；
S3, Optimum Regulation module are initial by the urban distribution network computation model and voltage of based on impedance equation and over the ground equation
Calculated value, calculates the electric current initial value of each bar branch road of power network；
S4, Optimum Regulation module are asked by Initial Voltage Value, each branch current initial value of power network, network optimization regulation-control model
The urban distribution network of solution calculates each branch road to various distributed power source Optimum Regulation computation models and the inferior iterative algorithm of newton pressgang
The new value of electric current；
S5, Optimum Regulation module calculate difference of each branch current newly between value and each branch current initial value, and judging should
Whether difference, if difference goes to S7 less than given ε values, if difference is more than given ε values, turns less than given ε values
To S6；
S6, various distributed power source Optimum Regulations are calculated with each branch road electricity using the new value of each branch current as urban distribution network
The initial value of stream, and utilization is based on impedance equation and the power network computation model of equation is calculated corresponding at the beginning of each branch current over the ground
The initial value of the node voltage of initial value, goes to S4；
S7, foundation are based on impedance equation and the power network computation model of equation is calculated corresponding to each of each branch current over the ground
The Optimal Power Flow of node voltage and each node, and form Optimum Regulation model of the urban distribution network to various distributed power sources.
Above-mentioned regulation and control method is also included：
After S7, according to obtain each node voltage data of power distribution network real time execution power network, each node injection active power,
Reactive power numerical value carries out distribution power system load flow calculation, network loss meter to urban distribution network to various distributed power source Optimum Regulation strategies
Calculate, so as to carry out security and the verification of power distribution network economy to modulation strategy, and regulating strategy and check results are exported；
Communication interface modules is issued by control command and passes to distribution automation system by order is regulated and controled, by power distribution network
Automated system transmits control information to control object, so as to complete urban distribution network be held to various distributed power source Optimum Regulations
Row work.
Power network history data is included under above-mentioned typical case's operation day：The corresponding power distribution network of typical case's operation day typical time is each
Each node injection active power value of node voltage history run value, power distribution network, reactive power value；
The real-time running data of power network includes each node voltage of power distribution network under current time under above-mentioned power distribution network current time
Runtime value, each node inject active magnitude of power；
Above-mentioned power distribution network branch parameters are included：Each node type of power distribution network, the active power supply of each node of power distribution network are exerted oneself maximum
Value and minimum value, each node reactive power source are exerted oneself maximum and minimum value, node serial number, and branch number.
It is above-mentioned based on impedance equation and over the ground that the urban distribution network computation model of equation is included：Impedance equation and over the ground equation；
The impedance equation such as formula (1)：
The equation over the ground such as formula (2)：
Wherein, l=1,2 ..., L represent set of fingers；I, j=1,2 ..., N is node set；Respectively branch road l electricity
The real part and imaginary part of stream；ei,fiIt is the real part and imaginary part of node i voltage；Rij,XijThe respectively resistance of branch road l and reactance；BlFor
Branch road l 1/2 susceptance over the ground；pi,qiIt is the active and reactive power of node injection；OrderRepresent respectively
The real part and imaginary part of node Injection Current；
Above-mentioned Optimum Regulation model such as formula (3)：
Constraints such as formula (4) and (5)：
Vmin≤V≤Vmax (5)
Wherein：I is power distribution network branch current；Be the i in network, the branch current between j nodes it is upper and lower
Limit；Vmax,VminIt is the bound of each node voltage.
A kind of urban distribution network regulator control system based on energy internet of the invention and regulation and control method compared to the prior art, its
Advantage is, urban distribution network regulator control system and method are employed based on impedance equation and over the ground under energy Background of Internet of the present invention
The urban distribution network computation model of equation, and network optimization regulates and controls the urban distribution network of computation model to various distributed electrical source optimizations
Regulation and control computation model.The node voltage and branch current in power distribution network are calculated simultaneously using this model, while utilizing
Network optimization regulates and controls computation model, solves under energy Background of Internet during urban distribution network Optimum Regulation system-computed
Linearization problem, improves power network to the convergence rate that is solved in various distributed power source Optimum Regulation calculating process, and by city
Power network is calculated and adjusted to various distributed power source Optimum Regulation strategies to safety on line verification under power distribution network real-time running state
The real-time simulated animation such as via net loss contrast before and after control, and urban distribution network is calculated various distributed power source Optimum Regulation modules
The urban distribution network for obtaining is to net before and after various distributed power source Optimum Regulation Policy Results, safety on line check results, regulation and control
The real-time simulated animation result outputs such as network loss contrast are further modified to human-computer interaction interface by electric power system dispatching person
Confirm, the control strategy of formation need to again carry out security verification and via net loss comparing calculation, until the strategy after adjustment is expired
Untill the target of sufficient power grid security economical operation, just most control strategy is adjusted through urban distribution network to various distributed electrical source optimizations at last
The control command of control system issues communication interface modules and is handed down to distribution automation system, is completed by distribution automation system
Power distribution network actual motion equipment switching is controlled, the economy of distribution network operation can be safely improved, and then improve power distribution network
The economic benefit and social benefit of operation.
Brief description of the drawings
Fig. 1 is a kind of structured flowchart of the urban distribution network regulator control system based on energy internet of the present invention；
Fig. 2 is a kind of flow chart of the regulation and control method of the urban distribution network regulator control system based on energy internet of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the invention is further illustrated.
As shown in figure 1, being the system architecture diagram of urban distribution network regulator control system of the present invention based on energy internet, the present invention
Urban distribution network regulator control system based on energy internet, comprises at least：Distribution automation system 101, distribution network structure number
Optimum Regulation module 103, control object selecting module 104, man-machine friendship according to storehouse 102, urban distribution network to various distributed power sources
Mutual module 105 and the communication interface modules 106 issued for operational order.
Distribution automation system 101 is used to obtain under typical case's operation day power distribution network history data value and current time
The real-time running data of lower power distribution network.
Power distribution network history data includes under typical case's operation day：The corresponding power distribution network of typical case's operation day typical time is respectively saved
Each node injection active power value of point voltage history runtime value, power distribution network, reactive power value.
The real-time running data of power network includes under power distribution network current time：Each node voltage operation of power distribution network under current time
Value, each node inject active magnitude of power.
Distribution network structural database 102 is used to obtain power distribution network branch parameters.
Wherein, power distribution network branch parameters include：Each node type of power distribution network, the active power supply of each node of power distribution network are exerted oneself maximum
Value and minimum value, each node reactive power source are exerted oneself maximum and minimum value, node serial number, and branch number.
Urban distribution network connects distribution automation system to the input of Optimum Regulation module 103 of various distributed power sources
101 and distribution network structural database 102, for receive the acquisition of distribution automation system module typical case's operation day under distribution
Net each node voltage historical data values, the active power value and reactive power value of each node injection are as urban distribution network to various points
Cloth electricity optimization regulates and controls the voltage initial calculation value of module, using the urban distribution network optimization of based on impedance equation and over the ground equation
Regulation and control computation model and Initial Voltage Value calculate the electric current initial value of each bar branch road of power network, using urban distribution network to various distributions
Electricity optimization regulates and controls Initial Voltage Value, each branch current initial value of power distribution network, the city of power network Optimal regulation and control model solution of module
Utility grid calculates each branch road electricity to various distributed power source Optimum Regulation analysis and calculation models and the inferior iterative algorithm of newton pressgang
The new value of stream, and according to each branch current difference newly between value and each branch current initial value using based on impedance equation and right
The urban distribution network computation model of ground equation forms urban distribution network to various distributed power source Optimum Regulation strategies.
Wherein, based on impedance equation and over the ground, the urban distribution network computation model of equation includes impedance equation and over the ground equation,
Impedance equation such as formula (1)：
Equation is such as formula (2) over the ground：
Wherein, l=1,2 ..., L represent set of fingers；I, j=1,2 ..., N is node set；Respectively branch road l electricity
The real part and imaginary part of stream；ei,fiIt is the real part and imaginary part of node i voltage；Rij,XijThe respectively resistance of branch road l and reactance；BlFor
Branch road l 1/2 susceptance over the ground；pi,qiIt is the active and reactive power of node injection.OrderRepresent respectively
The real part and imaginary part (without branch current over the ground) of node Injection Current；
Further, the Optimum Regulation model such as formula (3) of urban distribution network：
Constraints such as formula (4) and (5)：
Vmin≤V≤Vmax (5)
Wherein：I is power distribution network branch current；Be the i in network, the branch current between j nodes it is upper and lower
Limit；Vmax,VminIt is the bound of each node voltage.
Specifically, urban distribution network receives distribution network automated system to the Optimum Regulation module 103 of various distributed power sources
Each node voltage historical data values of power distribution network under typical case's operation day that system interface module 101 is obtained, the wattful power of each node injection
Then rate value and reactive power value utilize and are based on impedance equation and over the ground the power network calculating mould of equation as voltage initial calculation value
Type and Initial Voltage Value calculate the electric current initial value of each bar branch road of power distribution network, and using Initial Voltage Value, each branch current of power network
Initial value, the urban distribution network of power network Optimal regulation and control model solution are drawn various distributed power source Optimum Regulation computation models and newton
The inferior iterative algorithm of husband calculates the new value of each branch current, then calculate the new value of each branch current and each branch current initial value it
Between difference, judge this difference ε values whether given less than, if difference is less than given ε values, foundation is based on impedance
The calculation of distribution network model of equation and over the ground equation calculates the tide of each node voltage and each branch road corresponding to each branch current
Stream, and urban distribution network is formed to various distributed power source Optimum Regulation strategies, if difference is more than given ε values, by each
The new value of road electric current calculates various distributed power source Optimum Regulation modules the initial value of each branch current, profit as urban distribution network
The node electricity corresponding to each branch current initial value is calculated with based on the impedance equation and over the ground calculation of distribution network model of equation
The initial value of pressure, re-uses Initial Voltage Value, each branch current initial value of power network, the city of power network Optimal regulation and control model solution
Power network calculates the new of each branch current to various distributed power source Optimum Regulation computation models and the inferior iterative algorithm of newton pressgang
Value.
Control object selecting module 104 connects urban distribution network to the defeated of the Optimum Regulation module 103 of various distributed power sources
Go out end, operation object is selected for providing dispatcher, send control command.Specifically, by urban distribution network pair
After the control strategy of various distributed power source Optimum Regulation system operation personnel, power distribution network dispatcher will be at system operatio interface
Operation object is selected, control command is sent.
The output end of the connection control object of human-computer interaction module 105 selecting module 104, the urban distribution network pair that output is calculated
Urban distribution network is adjusted to various distributed electrical source optimizations under various distributed power source Optimum Regulation strategies, current power distribution Running State
The line voltage more upper limit or urban distribution network pair more under the artificial intelligence of lower limit, current power distribution Running State after control strategy execution
After various distributed power source Optimum Regulation strategy executions, the artificial intelligence such as grid net loss change.In present pre-ferred embodiments,
Human-computer interaction interface is provided by computer display, by this interface, system operation personnel can obtain described city
The urban distribution network that power network goes out to various distributed power source Optimum Regulation system-computeds to various distributed power source Optimum Regulation strategies,
Urban distribution network gets over the upper limit to line voltage after various distributed power source Optimum Regulation strategy executions under current power distribution Running State
Or the more artificial intelligence of lower limit, urban distribution network is to various distributed power source Optimum Regulation strategies under current power distribution Running State
After execution, the artificial intelligence such as grid net loss change, according to above- mentioned information urban distribution network to various distributed power source Optimum Regulation systems
The operations staff of system can determine whether that the Optimal Control Strategy for exporting is carried out such as to delete part control strategy, adjustment
Power supply point voltage, adjustment transformer gear, increase the adjustment of the information such as control object, it is confirmed after, can again perform simulation calculation.
Communication interface modules 106 connects the output end of human-computer interaction module 105, is issued for operational order, and it provides system
Communication interface modules between system and distribution automation system, passes to distribution automation system, by matching somebody with somebody by control command
Automation System of Power Network completes to control power network actual motion equipment operation.
Such as Fig. 2 is simultaneously combined shown in Fig. 1, is the regulation and control method of urban distribution network regulator control system of the present invention based on energy internet
The step of flow chart.The regulation and control method of urban distribution network regulator control system of the present invention based on energy internet specifically includes following step
Suddenly：
S1, distribution automation system 101 obtain power distribution network history data value and current time under typical case's operation day
The real-time running data of lower power network, obtains grid branch parameter, and the termination that setting Optimized Iterative is calculated judges parameter value ε.Specifically
Ground says, by distribution automation system 101 interface module obtain typical case operation day under power distribution network history data value and ought
The real-time running data of power distribution network is inscribed when preceding.Power distribution network history data includes under typical case's operation day：Typical case's operation day allusion quotation
Each node voltage history run value of type moment corresponding power distribution network, power network each node injection active power value and reactive power value.
The real-time running data of power network includes under power distribution network current time：Each node voltage runtime value of power distribution network, each section under current time
The active magnitude of power of point injection.
The interface module of power distribution network network architecture database 102 obtains power distribution network network architecture parameters, the power distribution network branch road
Parameter includes：Each node type of power network, the active power supply of each node of power network exert oneself maximum and minimum value, each node reactive power source go out
Power maximum minimum value, node serial number, and branch number.
The termination iterated to calculate finally by the interface setting idle work optimization of human-computer interaction module 105 judges parameter value ε, ε
Value is a numerical value for very little, can be 0.1,0.01,0.001 etc..
S2, power distribution network is each under urban distribution network receives typical case's operation day to the Optimum Regulation module 103 of various distributed power sources
Node voltage historical data values, the active power value of each node injection and reactive power value, as determination urban distribution network to various
The voltage initial calculation value of distributed power source Optimum Regulation.
S3, Optimum Regulation module 103 is obtained using based on impedance equation and over the ground in the power network computation model and S2 of equation
Voltage initial calculation value, calculate each bar branch road of power network electric current initial value.
Specifically, based on impedance equation and over the ground, the urban distribution network computation model of equation includes impedance equation and to place
Journey, impedance equation such as formula (1)：
Equation such as formula (2) over the ground：
Wherein, l=1,2 ..., L represent set of fingers；I, j=1,2 ..., N is node set；Respectively branch road l electricity
The real part and imaginary part of stream；ei,fiIt is the real part and imaginary part of node i voltage；Rij,XijThe respectively resistance of branch road l and reactance；BlFor
Branch road l 1/2 susceptance over the ground；pi,qiIt is the active and reactive power of node injection.OrderRepresent respectively
The real part and imaginary part (without branch current over the ground) of node Injection Current；
Further, the Optimum Regulation model such as formula (3) of urban distribution network：
Constraints such as formula (4) and (5)：
Vmin≤V≤Vmax (5)
Wherein：I is power distribution network branch current；Be the i in network, the branch current between j nodes it is upper and lower
Limit；Vmax,VminIt is the bound of each node voltage.
S5, Optimum Regulation module 103 calculates the new difference between value and each branch current initial value of each branch current, judges
Whether this difference is less than given ε values, if so, difference then goes to step S7 less than given ε values, if it is not, difference is more than giving
Fixed ε values, then go to step S6.
S6, the new value of each branch current that will be obtained in S4 is as urban distribution network to various distributed power source Optimum Regulation moulds
Block calculates the initial value of each branch current, using the calculation of distribution network model of equation is calculated correspondingly based on impedance equation and over the ground
In the initial value of the node voltage of each branch current initial value, step S4 is gone to.
S7, foundation is based on impedance equation and the power network computation model of equation is calculated corresponding to each of each branch current over the ground
Node voltage and each Branch Power Flow, and urban distribution network is formed to various distributed power source Optimum Regulation strategies.
Preferably, after S7, according to each node voltage data of power distribution network real time execution power network, each node that are obtained in S1
The active power of injection, reactive power numerical value carry out electricity to described urban distribution network to various distributed power source Optimum Regulation strategies
Net Load flow calculation, line losses management, so as to carry out security and the verification of power distribution network economy to described control strategy, and will control
Strategy and check results output after manually control strategy is confirmed or adjusted, are ordered to man-machine interface by control
Order issues communication interface modules and passes to distribution automation system by order is regulated and controled, and is transmitted by distribution automation system and controlled
Information is to control object, so as to complete execution work of the urban distribution network to various distributed power source Optimum Regulations.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for of the invention
Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. a kind of urban distribution network regulator control system based on energy internet, it is characterised in that the system is included：
Distribution automation system, it obtains power distribution network history data value and power distribution network under current time under typical case's operation day
Real-time running data；
Distribution network structural database, it obtains power distribution network branch parameters；
Each node voltage history of power distribution network under Optimum Regulation module, its typical case's operation day for receiving distribution automation system output
Data value, the active power value of each node injection and reactive power value are as urban distribution network to various distributed power source Optimum Regulations
Voltage initial calculation value, the distribution network computation model and voltage constituted using based on impedance equation and over the ground equation initially counted
Calculation value calculates the electric current initial value of each bar branch road of power distribution network, using Initial Voltage Value, each branch current initial value, distributed power source
The regulation and control of Optimal Distribution formula power supply and the inferior iterative algorithm of newton pressgang that Optimized model is solved calculate the new value of each branch current, and
Utilized according to each branch current difference newly between value and each branch current initial value and be based on impedance equation and the over the ground city of equation
Utility grid computation model forms urban distribution network to various distributed power source Optimum Regulation strategies；
Control object selecting module, its connection Optimum Regulation module output end, there is provided dispatcher is selected operation object,
Send control command；
Human-computer interaction module, its connection control object selecting module output end, the urban distribution network that output is calculated is to various distributions
Formula electricity optimization regulating strategy and each artificial intelligence；
Communication interface modules, its connection human-computer interaction module output end, there is provided the communication between distribution automation system connects
Mouthful, control command is passed into the distribution automation system.
2. the urban distribution network regulator control system of energy internet is based on as claimed in claim 1, it is characterised in that：Typical case's fortune
Power distribution network history data value is included under row day：Each node voltage history fortune of the corresponding power distribution network of typical case's operation day typical time
Row value, power distribution network each node injection active power value and reactive power value；
The real-time running data of power network is included under the power distribution network current time：Each node voltage operation of power distribution network under current time
Value and each node inject active magnitude of power.
3. the urban distribution network regulator control system of energy internet is based on as claimed in claim 1, it is characterised in that：The power distribution network
Branch parameters are included：Each node type of power distribution network, the active power supply of each node of power distribution network exert oneself maximum and minimum value, each node without
Work(power supply is exerted oneself maximum and minimum value, node serial number, and branch number.
4. a kind of urban distribution network based on energy internet as described in any one claim in claims 1 to 3 regulates and controls system
The regulation and control method of system, it is characterised in that the regulation and control method is included：
S1, distribution automation system obtain power distribution network history data value and power distribution network under current time under typical case's operation day
Real-time running data, distribution network structural database obtain power distribution network branch parameters, setting Optimized Iterative calculate termination sentence
Disconnected parameter value ε；
S2, Optimum Regulation module receive typical case operation day under each node voltage historical data values of power distribution network, each node injection have
Work(performance number and reactive power value, as urban distribution network to the voltage initial calculation value of various distributed power source Optimum Regulations；
S3, Optimum Regulation module are by based on the impedance equation and over the ground urban distribution network computation model and voltage initial calculation of equation
Value, calculates the electric current initial value of each bar branch road of power network；
S4, Optimum Regulation module are solved by Initial Voltage Value, each branch current initial value of power network, network optimization regulation-control model
Urban distribution network calculates each branch current to various distributed power source Optimum Regulation computation models and the inferior iterative algorithm of newton pressgang
New value；
S5, Optimum Regulation module calculate difference of each branch current newly between value and each branch current initial value, judge the difference
Whether less than given ε values, if difference goes to S7 less than given ε values, if difference goes to more than given ε values
S6；
S6, each branch current is calculated to various distributed power source Optimum Regulations using the new value of each branch current as urban distribution network
Initial value, and utilization is based on impedance equation and the power network computation model of equation is calculated corresponding to each branch current initial value over the ground
Node voltage initial value, go to S4；
S7, foundation are based on impedance equation and the power network computation model of equation calculates each node corresponding to each branch current over the ground
The Optimal Power Flow of voltage and each node, and form Optimum Regulation model of the urban distribution network to various distributed power sources.
5. method is regulated and controled as claimed in claim 4, it is characterised in that the regulation and control method is also included：
After S7, according to the active power, idle of each node voltage data of power distribution network real time execution power network, each node injection for obtaining
Magnitude of power carries out distribution power system load flow calculation, line losses management to urban distribution network to various distributed power source Optimum Regulation strategies, from
And security and the verification of power distribution network economy are carried out to modulation strategy, and regulating strategy and check results are exported；
Communication interface modules is issued by control command and passes to distribution automation system by order is regulated and controled, it is automatic by power distribution network
Change system transmits control information to control object, so as to complete execution work of the urban distribution network to various distributed power source Optimum Regulations
Make.
6. method is regulated and controled as claimed in claim 5, it is characterised in that：Power network history data bag under typical case's operation day
Contain：Each node injection wattful power of the corresponding each node voltage history run value of power distribution network of typical case's operation day typical time, power distribution network
Rate value, reactive power value；
The real-time running data of power network includes each node voltage operation of power distribution network under current time under the power distribution network current time
Value, each node inject active magnitude of power；
The power distribution network branch parameters are included：Each node type of power distribution network, the active power supply of each node of power distribution network exert oneself maximum and
Minimum value, each node reactive power source are exerted oneself maximum and minimum value, node serial number, and branch number.
7. regulation and control method as claimed in claim 6, it is characterised in that the city of based on the impedance equation and over the ground equation is electric
Net computation model is included：Impedance equation and over the ground equation；
The impedance equation such as formula (1)：
The equation over the ground such as formula (2)：
Wherein, l=1,2 ..., L represent set of fingers；I, j=1,2 ..., N is node set；Respectively branch road l electric currents
Real part and imaginary part；ei,fiIt is the real part and imaginary part of node i voltage；Rij,XijThe respectively resistance of branch road l and reactance；BlIt is branch road
L 1/2 susceptance over the ground；pi,qiIt is the active and reactive power of node injection；OrderNode is represented respectively
The real part and imaginary part of Injection Current；
8. method is regulated and controled as claimed in claim 7, it is characterised in that the Optimum Regulation model such as formula (3)：
max I
Constraints such as formula (4) and (5)：
Vmin≤V≤Vmax (5)
Wherein：I is power distribution network branch current；It is the i in network, the bound of the branch current between j nodes；
Vmax,VminIt is the bound of each node voltage.
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