CN102882206A - Multilevel micro-electric network control method based on four-dimensional energy management space - Google Patents

Multilevel micro-electric network control method based on four-dimensional energy management space Download PDF

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Publication number
CN102882206A
CN102882206A CN2012103094497A CN201210309449A CN102882206A CN 102882206 A CN102882206 A CN 102882206A CN 2012103094497 A CN2012103094497 A CN 2012103094497A CN 201210309449 A CN201210309449 A CN 201210309449A CN 102882206 A CN102882206 A CN 102882206A
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control
energy management
distributed power
control method
micro
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CN102882206B (en
Inventor
李洋
盛万兴
苏剑
刘海涛
吴鸣
吕志鹏
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State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
China Electric Power Research Institute Co Ltd CEPRI
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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Priority to CN201210309449.7A priority Critical patent/CN102882206B/en
Publication of CN102882206A publication Critical patent/CN102882206A/en
Priority to PCT/CN2013/082390 priority patent/WO2014032572A1/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/02Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70Smart grids as climate change mitigation technology in the energy generation sector
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention provides a multilevel micro-electric network control method based on four-dimensional energy management space. A micro-electric network system comprises multilevel micro-electric networks and distributed power sources. The multilevel micro-electric network control method comprises the steps as follows: (1) establishing a four-dimensional energy management space model; (2) establishing control strategy bases corresponding to the four-dimensional energy management space model; and (3) executing the energy management and control of the micro-electric system. Through multi-dimensional combination, the multilevel distributed power source/micro-electric network energy optimum management problem is effectively solved under the conditions of different modes, different time sequences and multiple constraint; and meanwhile, through integrated restraint, a theory can be flexibly applied to the operation control of a unipolar micro-network/single device. In practical application, the number of the layer/level of each dimension can be freely and flexibly selected as required, influence factors under various conditions and restraint can be comprehensively considered, and corresponding control strategy bases can be systematically deduced and applied in real time, so that the economic dispatch and the optimum operation of the multilevel distributed power source/micro-electric network networked system are ensured.

Description

A kind of multistage little power grid control method based on four-dimensional energy management space
Technical field
The present invention relates to field of power, be specifically related to a kind of multistage little power grid control method based on four-dimensional energy management space.
Background technology
In recent years along with the going from bad to worse and non-renewable energy resources rare of environment, obtained fast development take wind energy, solar energy as the renewable and clean energy resource generation technology of representative.Wherein, with small-size wind power-generating, photovoltaic generation etc. flexibly, access user distribution network dispersedly, can improve the local power reliability, reduce transmission losses, improve the utilance of primary energy and reduce toxic emission.Wind, light power generating system that accesses by this way distribution etc. is collectively referred to as distributed power source.
Because wind energy and luminous energy have randomness, intermittent characteristics, independently distributed power supply system is difficult to the power stage that provides stable, continuous, and simultaneously a large amount of distributed power sources are incorporated into the power networks and also can impact the access electrical network.Therefore for can system, efficiently manage distributed power source, improve power supply reliability and improve the quality of power supply, people have proposed distributed power source and have accessed large electrical network with little electrical network form.Little electrical network refers to that it both can be incorporated into the power networks, also can be from network operation by distributed power source, energy storage device, load and protection control device together integrated autonomous intelligence system herein.
Dynamic characteristic and energy management problem that present little electrical network is incorporated into the power networks, existing control strategy is no longer applicable, so EMS wants to keep good operation, and perfect control strategy support must be arranged.But existing energy management strategy is often only considered the voltage to frequency control of mechanical floor, the perhaps meritorious Reactive Power Dispatch of management level.When situation that a large amount of distributed power sources and little electrical network are incorporated into the power networks with multistage form, consider that factor of influence is relatively less, systemization is not enough, is easy to the phenomenon that causes critical control link to lose.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of multistage little power grid control method based on four-dimensional energy management space, efficiently solve the energy-optimised problem of management of micro-grid system under different mode, different sequential and multi-constraint condition.
Micro-grid system of the present invention comprises multistage little electrical network and distributed power source, in this system, by the microgrid energy management system, manages a plurality of microgrid controllers; A microgrid controller is controlled a plurality of distributed power sources and load.
A kind of multistage little power grid control method based on four-dimensional energy management space provided by the invention, described micro-grid system comprises multistage little electrical network or distributed power source; Its improvements are, described method comprises the steps:
(1) sets up four-dimensional energy management spatial model;
(2) set up control strategy storehouse corresponding to model;
(3) energy management of executive system and control.
Wherein, step (1) is set up four-dimensional energy management spatial model and is comprised the steps:
1) according to the project situation formation base list of elements;
2) confirm the first dimension table;
3) confirm to insert the second dimension table;
4) confirm third dimension kilsyth basalt;
5) confirm the fourth dimension kilsyth basalt.
Wherein, the described infrastructure elements of step 1) comprises distributed power source class, load class, energy storage class and other classes.Other classes of the present invention refer in actual micro-grid system, consider power quality controlling sometimes and some extras of adding, such as active filtering, reactive power compensation etc.
By described distributed power source class, load class, energy storage class and other classes, carry out with network topology structure integrated, and interconnected with external system, the basis of formation list of elements.Network topology structure of the present invention designs according to conditions such as real demand border, function application.
Wherein, step 2) the first dimension is the operational mode of system, comprising:
Pattern one: distributed power source/microgrid is united and is incorporated into the power networks;
Pattern two: distributed power source/microgrid is united from network operation;
Pattern three: little electrical network independently is incorporated into the power networks;
Pattern four: little electrical network is independent of network operation;
Pattern five: distributed power source independently is incorporated into the power networks.
Wherein, step 3) the second dimension is the time series of system's operation, comprising:
The T0 moment: according to predicted power, cool and thermal power prediction workload demand, operation of power networks state and the market clearing price mechanism of wind-force, photovoltaic, formulate the production scheduling plan;
The T1 moment: according to realtime power, workload demand and the storage charge level of wind-force, photovoltaic, carry out the production scheduling adjustment;
The T2 moment: constantly plan to compare according to the condition of production and the T0 that adjust, again adjust.
Wherein, 4) confirm that third dimension kilsyth basalt is the priority level of critical parameter, again high to Low comprising:
The first order: electric network state;
The second level: power rating;
The third level: state-of-charge.
Wherein, 5) confirm that the fourth dimension kilsyth basalt is the operation control strategy of system, comprising:
The first kind: exchange power is incorporated into the power networks;
Equations of The Second Kind: increase/subtract distributed power source;
The 3rd class: increase/subtract all types of loads;
The 4th class: regulate energy storage device.
Wherein, it is the four-dimensional energy management spatial model of setting up according to step (1) that step (2) is set up control strategy storehouse corresponding to model, sets up corresponding policy library and logical program in different management and control equipments.
Wherein, energy management and the control of step (3) executive system comprise:
In system when operation,, according to the data message that gathers and the dispatching command of external system, the main website EMS judges automatically, and selects the relative strategy instruction to be handed down to little power system controllers at different levels, carries out system-level energy-optimised configuration; Little power system controllers at different levels are received the policy instructions that transmits, and call the logic control program of finishing in advance, for real time information, carry out the zonule and coordinate control; Underlying device is according to real-time parameter, and the logic control program that writes in advance, carries out the control of individual equipment.
Relative strategy of the present invention refers at micro-grid system under different service conditions constraints, the corresponding different control strategies that produce; The zonule is: the equipment region that the microgrid controller can be controlled; Underlying device is mainly wind-powered electricity generation inverter, photovoltaic DC-to-AC converter, the two-way inverter of energy storage etc.
Compared with the prior art, beneficial effect of the present invention is:
The present invention proposes the theory in four-dimensional energy management space, and proposed a kind of multistage little power grid control method based on four-dimensional energy management space based on this theory.The method makes up by various dimensions, efficiently solves multilevel distributed power supply under different mode, different sequential and multi-constraint condition/microgrid energy optimum management problem; Simultaneously should theory by the lump constraint, also can be used for flexibly the operation control of one pole microgrid/individual equipment.When practical application, according to demand, layer/the progression of each dimension of selection that can freedom and flexibility, consider the factor of influence under various situations and the constraint comprehensively, derive systematically corresponding control strategy storehouse and real-time calling, thereby guarantee the economic dispatch of multilevel distributed power supply/little electrical network grid-connected system and optimize operation.
The method is not only applicable to large regional multilevel distributed power supply/micro-grid system, is applicable to only have the distributed power source/micro-grid system of a utmost point yet, according to the disparity items situation, can select the counterpart of the method.
Description of drawings
Fig. 1 is four-dimensional energy management spatial model provided by the invention.
Fig. 2 is multilevel distributed power supply provided by the invention/little power grid control structure chart.
Fig. 3 is multilevel distributed power supply provided by the invention/little electrical network electrical structure diagram.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
A kind of multistage little power grid control method based on four-dimensional energy management space that the present embodiment provides, the main thought that adopts centralized management and decentralized control, distributed power source in the whole system or little electrical network are carried out layering/grading control, solve coordination control and energy-optimised problem between each level system, it comprises the steps:
(1) sets up four-dimensional energy management spatial model;
The four-dimensional energy management spatial model that the present invention proposes as shown in Figure 1, mainly by elemental basis B(Basic), operational mode M(Model), time series T(Time), priority level P(Priority), control strategy C(Control) five parts consist of, it is by the mode of various dimensions combination, considering all kinds of factors of influence also effectively selects, whole system is carried out the optimal control of layering/classification/classification under different operational modes, it is according to the engineering actual conditions, with the distributed power sources at different levels of having selected, the kind of energy storage and load, capacity, the information correspondences such as access point are inserted the infrastructure elements table; Then several operational modes that this system had are inserted the first dimension table in exhaustive mode; The second dimension table is arranged and inserted to the required time point that carries out energy management; All kinds of factors of influence are inserted third dimension kilsyth basalt by top-priority order; To insert the fourth dimension kilsyth basalt to the control strategy of distributed power source, energy storage and load at last, form four-dimensional energy management spatial model, from but the energy resource of whole system reaches allocation optimum.Model structure as shown in Figure 1.This model is not only applicable to multilevel system, is applicable to individual equipment yet, and according to different situations, the reasonable selection relative influence factor can be given full play to the guiding function of this model.
Setting up spatial model comprises the steps:
1) model-composing: elemental basis B(Basic)
The elemental basis B(Basic in the reason space, four-dimensional energy pipe basis that the present invention proposes), mainly be to divide according to power supply characteristic and the part throttle characteristics of element.Take the multilevel distributed power supply/micro-grid system that contains honourable gas storage type chosen as example, its essential element has:
Distributed power source class: usually according to the situation of exerting oneself of distributed power source, be further subdivided into batch-type distributed power source (such as wind power generation, photovoltaic generation etc.) and controllable type distributed power source (such as miniature gas turbine, fuel cell etc.).
The load class: the kind according to load is divided, and mainly contains electric load, heating power load, cooling load etc.
Energy storage class: according to the difference of energy storage principle, mainly contain physics energy storage, chemical energy storage, Power Flow etc.
Other classes: according to actual conditions, other formation base elements in the model, for subsequent use in order to expand.
With these infrastructure elements, carry out with certain network topology structure integrated, and interconnected with external system, thereby make up the model basis in four-dimensional energy management space, i.e. multilevel distributed power supply/little electrical network grid-connected system.
2) the first dimension: operational mode M(Model)
First dimension in the four-dimensional energy management space that the present invention proposes is the operational mode M(Model of system).This operational mode mainly refers to the infrastructure elements of system, i.e. various distributed power sources, load and the energy storage device operational mode under the heterogeneous networks framework.Take the multilevel distributed power supply/micro-grid system that contains honourable gas storage type chosen as example, its main operational mode has:
Pattern one: distributed power source/microgrid is united and is incorporated into the power networks
Pattern two: distributed power source/microgrid is united from network operation
Pattern three: little electrical network independently is incorporated into the power networks
Pattern four: little electrical network is independent of network operation
Pattern five: distributed power source independently is incorporated into the power networks
Pattern six:
Under different operational modes, its control strategy and energy distribution strategy to distributed power source, load and energy storage is also different.
3) the second dimension: time series T (Time)
Second dimension in the four-dimensional energy management space that the present invention proposes is the time series T (Time) of system's operation.This time series refers to that mainly system makes prediction to energy production and the Expenditure Levels of the second moment T1 at the first moment T0, and formulates the energy distribution plan; T1 is next interim constantly second, actual production and Expenditure Levels in conjunction with this moment energy, to each infrastructure elements, be that various distributed power sources, load and energy storage device are adjusted, to the 3rd constantly during T2, can reach the global resource allocation optimum, by that analogy, form the time series of whole system operation.
The T0 moment: according to the prediction of exerting oneself of wind-force, photovoltaic, the prediction of the workload demands such as cool and thermal power, external electrical network running status, market clearing price mechanism etc. are made next step production scheduling plan.Charge and discharge plan, purchase sale of electricity plan etc. such as battery.
T1 is constantly: according to the actual situation of exerting oneself of wind-force, photovoltaic, workload demand, storage charge level etc., carry out the production scheduling adjustment, as specified power supply exert oneself, administrative loads, control exchange power etc.
The T2 moment: compare according to the condition of production and the desired value adjusted, again be optimized adjustment;
The T3 moment:
4) third dimension degree: priority level P (Priority)
The third dimension degree in the four-dimensional energy management space that the present invention proposes is the priority level P (Priority) of critical parameter.This priority level mainly refers to system when operation, and is by to the preferential judgement of operational factor and step by step decomposition that the related constraint condition is all integrated, and formulating for further control strategy provides prerequisite.Take the multilevel distributed power supply/micro-grid system that contains honourable gas storage type chosen as example, its main priority level has:
The first order: electric network state (such as peak of power consumption, low power consumption etc.)
The second level: power rating (more than needed such as power, power shortage etc.)
The third level: state-of-charge (cross such as SOC value of battery low or too high)
The fourth stage:
5) fourth dimension degree: control strategy C (Control)
The fourth dimension degree in the four-dimensional energy management space that the present invention proposes is the operation control strategy C (Control) of system.The operation control that this control strategy mainly refers under different mode, different sequential and multi-constraint condition infrastructure elements to be carried out.Take the multilevel distributed power supply/micro-grid system that contains honourable gas storage type chosen as example, its main control strategies has:
The first kind: the exchange power that is incorporated into the power networks (such as the power etc. of having more than needed to the electrical network foldback)
Equations of The Second Kind: distributed power source (such as increase and decrease or switching distributed power source etc.)
The 3rd class: all types of loads (such as increase and decrease or all types of loads of switching etc.)
The 4th class: energy storage device is regulated (such as discharging and recharging of energy storage different capacity etc.)
The 5th class:
(2) set up control strategy storehouse corresponding to model;
According to the four-dimensional energy management spatial model of having set up, in different management and control equipments, set up corresponding policy library and logical program.Multilevel distributed power supply/little grid control system will carry out the policy control under operational mode, time series and the priority level from power distribution network dispatch layer, little electrical network central control level (microgrid main website and controller at different levels), distributed power source at different levels and three aspects of key-course of loading on the spot.Realize operational monitoring, coordination control and the energy management of whole system.Its control structure figure as shown in Figure 2.The power distribution network dispatching patcher of power distribution network dispatch layer is by the microgrid energy communication of Ethernet and several key-courses of little electrical network, and controls little power system controller of the every one-level of little electrical network Centralized Controller instruction by Ethernet.In the EMS of main website, set up system-level energy management policy library and corresponding instruction database.In microgrid controllers at different levels, set up the subsystem irrespective of size control strategy storehouse that this grade controller is managed; In underlying device, write the control strategy of this equipment.The control strategy storehouse of the present embodiment is judged according to different service conditionss, then carries out corresponding control.For example uniting when being incorporated into the power networks when multistage microgrid, distributed power source is exerted oneself greater than workload demand, and electrical network is in the peak of power consumption period, and battery SOC is in high-capacity state, then by the control to each inverter, makes the whole foldback electrical networks of rich electric weight in little electrical network.
(3) energy management of executive system and control.
In system when operation,, according to the data message that gathers and the dispatching command of external system, the main website EMS judges automatically, and selects the relative strategy instruction to be handed down to little power system controllers at different levels, carries out system-level energy-optimised configuration; Little power system controllers at different levels are received the policy instructions that transmits, and call the logic control program of finishing in advance, for real time information, carry out the zonule and coordinate control; Underlying device is according to real-time parameter, and the logic control program that writes in advance, carries out the control of individual equipment.
Concrete, it is example that the present embodiment is chosen the multistage little electrical network that contains honourable gas storage type, 3 couples of the present invention elaborate by reference to the accompanying drawings.
1) mainly contains wind power generation, photovoltaic generation, lithium battery group, miniature gas turbine, important load (such as a stage load that defines in the electric power system), resident load and reactive power compensator in little electrical network, it is connected with electrical network by little electrical network PCC switch all by after the relay parallel connection.This system has flexibly topological structure, the associating that can under different operational modes, carry out multilevel distributed power supply/little electrical network also/from network operation.At first according to this project network topology structure, as shown in Figure 3, the relevant information correspondence of miniature gas turbine, photovoltaic generation, wind power generation, energy storage device, important load and the resident load selected is inserted the infrastructure elements table.
Several operational modes with this system has are incorporated into the power networks such as the interconnected of whole system, and whole system interconnected from network operation etc. inserted the first dimension operational mode table in exhaustive mode;
The required time point that carries out energy management is arranged, inserted the second dimension table such as energy prediction programming phase, energy actual state, energy-optimised configuration etc.;
With all kinds of factors of influence, such as external electrical network state, bus power rating, battery charge state, production economy cost, security of operation constraint etc. is inserted third dimension kilsyth basalt by top-priority order;
Will be to the control strategy of distributed power source, energy storage and load, insert the fourth dimension kilsyth basalt such as exert oneself control, battery charging and discharging control, load power consumption control etc. of Tie line Power Control, distributed power source;
2) according to the four-dimensional energy management spatial model of having set up, in different management and control equipments, set up corresponding policy library and logical program.
In system when operation,, according to the data message and the outside dispatching command that gather, the main website EMS judges automatically, and selects the relative strategy instruction to be handed down to microgrid controllers at different levels, carries out system-level energy-optimised configuration;
3) microgrid controllers at different levels are received the policy instructions that transmits, and call the logic control program of finishing in advance, for real time information, carry out the zonule and coordinate control;
Underlying device is according to real-time parameter, and the logic control program that writes in advance, carries out the control of individual equipment.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (9)

1. multistage little power grid control method based on four-dimensional energy management space, described micro-grid system comprises multistage little electrical network or distributed power source; It is characterized in that, described method comprises the steps:
(1) sets up four-dimensional energy management spatial model;
(2) set up control strategy storehouse corresponding to model;
(3) energy management of executive system and control.
2. control method as claimed in claim 1 is characterized in that, step (1) is set up four-dimensional energy management spatial model and comprised the steps:
1) according to the project situation formation base list of elements;
2) confirm the first dimension table;
3) confirm to insert the second dimension table;
4) confirm third dimension kilsyth basalt;
5) confirm the fourth dimension kilsyth basalt.
3. control method as claimed in claim 1 is characterized in that, the described infrastructure elements of step 1) comprises distributed power source class, load class, energy storage class and other classes.
By described distributed power source class, load class, energy storage class and other classes, carry out with network topology structure integrated, and interconnected with external system, the basis of formation list of elements.
4. control method as claimed in claim 1 is characterized in that step 2) the first dimension is the operational mode of system, comprising:
Pattern one: distributed power source/microgrid is united and is incorporated into the power networks;
Pattern two: distributed power source/microgrid is united from network operation;
Pattern three: little electrical network independently is incorporated into the power networks;
Pattern four: little electrical network is independent of network operation;
Pattern five: distributed power source independently is incorporated into the power networks.
5. control method as claimed in claim 1 is characterized in that, step 3) the second dimension is the time series of system's operation, comprising:
The T0 moment: according to predicted power, cool and thermal power prediction workload demand, operation of power networks state and the market clearing price mechanism of wind-force, photovoltaic, formulate the production scheduling plan;
The T1 moment: according to realtime power, workload demand and the storage charge level of wind-force, photovoltaic, carry out the production scheduling adjustment;
The T2 moment: constantly plan to compare according to the condition of production and the T0 that adjust, again adjust.
6. control method as claimed in claim 1 is characterized in that, 4) confirm that third dimension kilsyth basalt is the priority level of critical parameter, again high to Low comprising:
The first order: electric network state;
The second level: power rating;
The third level: state-of-charge.
7. control method as claimed in claim 1 is characterized in that, 5) confirm that the fourth dimension kilsyth basalt is the operation control strategy of system, and comprising:
The first kind: exchange power is incorporated into the power networks;
Equations of The Second Kind: increase/subtract distributed power source;
The 3rd class: increase/subtract all types of loads;
The 4th class: regulate energy storage device.
8. control method as claimed in claim 1, it is characterized in that, it is the four-dimensional energy management spatial model of setting up according to step (1) that step (2) is set up control strategy storehouse corresponding to model, sets up corresponding policy library and logical program in different management and control equipments.
9. control method as claimed in claim 1 is characterized in that, energy management and the control of step (3) executive system comprise:
In system when operation,, according to the data message that gathers and the dispatching command of external system, the main website EMS judges automatically, and selects the relative strategy instruction to be handed down to little power system controllers at different levels, carries out system-level energy-optimised configuration; Little power system controllers at different levels are received the policy instructions that transmits, and call the logic control program of finishing in advance, for real time information, carry out the zonule and coordinate control; Underlying device is according to real-time parameter, and the logic control program that writes in advance, carries out the control of individual equipment.
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PCT/CN2013/082390 WO2014032572A1 (en) 2012-08-28 2013-08-27 Multilevel microgrid control method based on four-dimensional energy management space

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WO2014032572A1 (en) * 2012-08-28 2014-03-06 国家电网公司 Multilevel microgrid control method based on four-dimensional energy management space
CN103955801A (en) * 2014-05-15 2014-07-30 华北电力大学 Electric power system distributed parallel computing management method based on time-space dimension
CN103997062A (en) * 2014-05-28 2014-08-20 天津大学 Microgrid energy management control method
CN104037774A (en) * 2013-03-06 2014-09-10 珠海优特电力科技股份有限公司 Method and system for controlling devices in micro grid based on priority
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CN105207271A (en) * 2015-09-06 2015-12-30 贵州电网有限责任公司 Method for realizing seamless switching between isolated-network mode and grid-connected mode in CCHP (combined cooling, heating and power) system
CN105207271B (en) * 2015-09-06 2016-06-08 贵州电网有限责任公司 A kind of method of lonely net and grid-connect mode seamless switching in cold, heat and power triple supply system
CN105245002A (en) * 2015-09-28 2016-01-13 国家电网公司 Seamless switching control system of micro-grid
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CN106374501A (en) * 2016-11-17 2017-02-01 新智能源***控制有限责任公司 Micro grid system for balancing power supplied by micro power sources and power consumed by loads
CN106451561A (en) * 2016-12-09 2017-02-22 国网江苏省电力公司苏州供电公司 Low-voltage microgrid coordination control device and method
CN106451561B (en) * 2016-12-09 2019-04-02 国网江苏省电力公司苏州供电公司 Low pressure microgrid cooperative control device and method
CN107528385B (en) * 2017-06-29 2018-08-24 国网辽宁省电力有限公司 A kind of source net lotus control method for coordinating and system based on new energy consumption
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