CN107453414A - A kind of portable micro-grid system - Google Patents

A kind of portable micro-grid system Download PDF

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Publication number
CN107453414A
CN107453414A CN201710840099.XA CN201710840099A CN107453414A CN 107453414 A CN107453414 A CN 107453414A CN 201710840099 A CN201710840099 A CN 201710840099A CN 107453414 A CN107453414 A CN 107453414A
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CN
China
Prior art keywords
interface
play
plug
power
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710840099.XA
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Chinese (zh)
Inventor
闫安心
苏麟
钱康
聂文海
晏阳
蒋科
李海滨
袁简
谈金龙
王尉
刘丽
赵阳
秦华
王晓虎
王旗
裴昌盛
王政高
蒋昱垚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Economic and Technological Research Institute of State Grid Jibei Electric Power Co Ltd
China Energy Engineering Group Jiangsu Power Design Institute Co Ltd
Original Assignee
Economic and Technological Research Institute of State Grid Jibei Electric Power Co Ltd
China Energy Engineering Group Jiangsu Power Design Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Economic and Technological Research Institute of State Grid Jibei Electric Power Co Ltd, China Energy Engineering Group Jiangsu Power Design Institute Co Ltd filed Critical Economic and Technological Research Institute of State Grid Jibei Electric Power Co Ltd
Priority to CN201710840099.XA priority Critical patent/CN107453414A/en
Publication of CN107453414A publication Critical patent/CN107453414A/en
Pending legal-status Critical Current

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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
    • H02J5/00Circuit arrangements for transfer of electric power between ac networks and dc networks

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention discloses a kind of portable micro-grid system, including:Ac high-voltage part, AC low-tension part, direct current component three parts;The ac high-voltage part includes high voltage interface, transformer high-voltage switch, transformer;The AC low-tension part includes:Transformer low voltage switch, ac bus, plug and play exchange interface side low-voltage alternating-current switch, all kinds of distributed resource plug and play exchange interface, AC/DC modules;The direct current component includes:AC/DC module DC sides dc switch, dc bus, plug and play DC interface side dc switch, energy-storage system, all kinds of distributed resource plug and play DC interfaces in system.The present invention miniature power system is set up in the case of main grid structure is destroyed, realize regional area power, and zonule power-balance with it is energy-optimised;Meet that the high electric power of user formulates demand, the consumption of such as distributed resource, uninterrupted power source power supply, idle and power quality compensation simultaneously.

Description

A kind of portable micro-grid system
Technical field
The present invention relates to a kind of portable micro-grid system, belongs to vehicle power power supply unit technical field.
Background technology
At present, power system device maintenance and breakdown repair are carried out under power down mode mostly, if meeting harsh weather Or other reasonses cause that operation can not be carried out in time, will certainly form long-time blackout condition, the economic loss thereby resulted in and Society's negative effect is huge.Particularly in irresistible natural calamity such as ice and snow, flood, in face of thunderstorm disaster, originally Operating type and measure fundamentally can not timely and effectively solve electric power energy regular supply for fighting calamities and providing relief be badly in need of etc. Conspicuous contradiction.
Existing vehicle-mounted mobile substation copes with power transformer, the basic need of electric power distribution in the case of natural calamity Ask, but with the further expansion of electricity needs, the requirement more and more higher to power supply reliability, original vehicle-mounted mobile substation It is also required to further upgrading and technological transformation.How to solve that main grid structure is destroyed, mobile substation can not find level power supply In the case of power supply, and solve region internal power balance and energy-optimised, brand-new into one problem.
Research or the application achievements of mobile substation have been related in existing art solutions or document, but have had no any It is exactly using portable on perhaps scheme, the present invention in being powered after being destroyed using moving electric power facility solution main grid structure Micro-grid system builds complete miniature power system, to meet regional area generating, power transformation, the requirement of distribution.
The content of the invention
Purpose:In the case of being wrecked for solution main grid structure, vehicle-mounted mobile substation is as the power transformation ring in power system Section can not be used alone, can not recover the problem of block supply, and the present invention provides a kind of portable micro-grid system, solve how The problem of main grid structure sets up miniature power system in the case of being destroyed, realize that regional area is powered, and zonule power is put down Weighing apparatus with it is energy-optimised;It disclosure satisfy that the high electric power of user formulates demand simultaneously, the consumption, uninterrupted power source such as distributed resource supply Electric, idle and power quality compensation etc..
Technical scheme:In order to solve the above technical problems, the technical solution adopted by the present invention is:
A kind of portable micro-grid system, including:Ac high-voltage part, AC low-tension part, direct current component three parts, the exchange High-pressure section includes:High voltage interface, transformer high-voltage switch, transformer;High voltage interface is connected with transformer high-voltage switch, transformation The other end of device high-voltage switch gear is connected with high voltage side of transformer;The AC low-tension part includes:Transformer low voltage switch, exchange Bus, plug and play exchange interface side low-voltage alternating-current switch, all kinds of distributed resource plug and play exchange interface, AC/DC modules; The step down side is connected to ac bus by transformer low voltage switch, and AC/DC modules are connect by plug and play exchange Mouth side low-voltage alternating-current switch is connected to ac bus, and all kinds of distributed resource plug and play exchange interfaces are by respective insert Ac bus is connected to exchange interface side low-voltage alternating-current switch;The other end of all kinds of distributed resource plug and play exchange interfaces All kinds of distributed resource connections corresponding with outside system, all kinds of distributed resource plug and play exchange interfaces include respectively:Energy storage Interface, distributed electrical source interface, controllable burden interface, general load interface;The direct current component includes:AC/DC module direct currents Side dc switch, dc bus, plug and play DC interface side dc switch, energy-storage system, all kinds of distributed resources in system Plug and play DC interface;The AC/DC modules are connected to dc bus, system by AC/DC module DC side dc switch Interior energy-storage system is connected to dc bus, all kinds of distributed resource plug and play by plug and play DC interface side dc switch DC interface is connected to dc bus by respective plug and play DC interface side dc switch;All kinds of distributed resources are inserted Included with DC interface:Energy storage interface, distributed electrical source interface, controllable burden interface, general load interface.
Preferably, the distributed resource plug and play exchange interface, distributed resource plug and play direct current connect Mouth includes:Shield cabinet, power conversion unit, measuring and controlling protective device, communicator;The power conversion unit, monitoring and protection dress Put, communicator is arranged in screen cabinet.
Preferably, the power conversion unit includes AC/DC types, DC/DC types, inactivity changing type.
Preferably, the measuring and controlling protective device is realizing defencive function and remote control function;Defencive function Protected including isolated island detection, reverse-power protection, overload protection, short-circuit protection, overvoltage protection, under-voltage protection, overcurrent protection, overheat Shield;Remote control function includes startup, stopping and off-grid operation.
Preferably, the function of the communicator includes realizing network interface, RS485, GPRS communication interface.
Preferably, the distributed resource plug and play exchange interface, distributed resource plug and play direct current connect The control model of mouth includes:It is grid-connected not limit control model:Distributed power source, which maximizes, contributes, and the energy inversion that generates electricity is to AC Power network is powered or given to load;Dispatching of power netwoks response control pattern:The output of adjustment distributed power source downwards so that user With the dispatch command for exchanging power and meeting that power network assigns of power network.
Preferably, prime power module group of the power conversion unit by specification for 10kW, 20kW, 50kW Into.
Preferably, in addition to prefabricated storehouse, the portable micro-grid system is installed in prefabricated storehouse, described prefabricated Storehouse includes bilateral in nacelle and sets hatch door, while sets plug and play interface panel;There is dual power supply by bulkhead arrangement inside nacelle A-b box, distribution box;Nacelle screen cabinet inside nacelle includes exchange by electric cabinet, converter cabinet, direct current by electric cabinet, feeder cabinet, i.e. Plug-and-play interface cabinet, observing and controlling cabinet, battery rack, mother cabinet, feeder cabinet.
Preferably, the nacelle integrally uses stainless steel material, and surface scribbles water-repellent paint, and nacelle side is in Diagonally opposed to be provided with two air regulators, air regulator sets dual direction ventilating fan, window cover is set outside air regulator.
Preferably, at least provided with the maintenance channel that 600mm is wide inside the nacelle.
Beneficial effect:A kind of portable micro-grid system provided by the invention, advantage are as follows:
(1)Miniature power system is set up in the case of main grid structure is destroyed, realizes that regional area is powered, and zonule power Balance with it is energy-optimised;
(2)Meet that the high electric power of user formulates demand, consumption, uninterrupted power source power supply such as distributed resource, idle and electric energy Mass compensation etc.;
(3)Equipment is integrated by using the newest fruits of prefabricated technology, at utmost realizes batch production, standardization Processing;
(4)Convenient transportation, flexible operation, and effectively save the fund input of expropriation of land, civil engineering, equipment installation etc..
Brief description of the drawings
Fig. 1 is the primary equipment wiring schematic diagram of the present invention;
Fig. 2 is distributed resource " plug and play " interface cabinet composition schematic diagram of the present invention;
Fig. 3 is " plug and play " rating of set block combiner schematic diagram of the invention;
Fig. 4 is that schematic diagram is arranged in the prefabricated storehouse and cabin of the present invention;
Fig. 5 is the control system composition schematic diagram of the present invention;
The implication of reference in figure:
101- high voltage interfaces, 102- transformer high-voltages switch, 103- transformers, 104- transformer low voltages switch, 105- exchanges are female Line, 106- plug and play exchange interface side low-voltage alternating-current switch, 107- energy storage interfaces, 108- distributed electrical source interfaces, 109- can Control load interface, the general load interfaces of 110-, 111-AC/DC modules, 112-AC/DC module DC side dc switch, 113- are straight Bus is flowed, 114- dc switch, energy-storage system in 115- systems, 116- energy storage interfaces, 117- distributed electrical source interfaces, 118- can Control load interface, the general load interfaces of 119-, the outer energy-storage system of 120- systems, 121- photovoltaics, 122- blower fans, 123- charging piles, The general loads of 124-, 125- synchronous machines, 126- blower fans, 127- photovoltaics, the outer energy-storage system of 128- systems, the general loads of 129-, 130- charging piles, 201- screen cabinets, 202- power conversion units, 203- measuring and controlling protective devices, 204- communicators, 301- nacelles, 302- hatch doors, 303- screen cabinets, 304- dual power supply switching boxes, 305- distribution boxs, 306- " plug and play " interface panel.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of portable micro-grid system, including:Ac high-voltage part, AC low-tension part, direct current component Three parts;The ac high-voltage part includes:High voltage interface 101, transformer high-voltage switch 102, transformer 103;Mobile microgrid Upper level power supply 120 outside system is connected by high voltage interface 101 with transformer high-voltage switch 102, transformer high-voltage switch 102 The other end is connected with the high-pressure side of transformer 103.The AC low-tension part includes:Transformer low voltage switch 104, ac bus 105th, plug and play exchange interface side low-voltage alternating-current switch 106, all kinds of distributed resource plug and play exchange interface, AC/DC moulds Block 111;The low-pressure side of transformer 103 is connected to ac bus 105, AC/DC modules 111 by transformer low voltage switch 104 Interface side low-voltage alternating-current switch 106 is exchanged by plug and play and is connected to ac bus 105, all kinds of distributed resource plug and play Exchange interface exchanges interface side low-voltage alternating-current switch 106 by respective plug and play and is connected to ac bus 105;All kinds of distributions All kinds of distributed resource connections corresponding with outside system respectively of the other end of formula resource plug and play exchange interface, all kinds of distributions Resource plug and play exchange interface includes:It is energy storage interface 107, distributed electrical source interface 108, controllable burden interface 109, general negative Lotus interface 110, the outer distributed power source of system include:Synchronous machine 125, blower fan 126, photovoltaic 127, the distributed power source and distribution Formula power interface 108 is connected, and the outer energy-storage system 128 of system is connected with energy storage interface 107, and the outer charging pile 130 of system is born with controllable Lotus interface 109 is connected, and general load 129 is connected with general load interface 110 outside system.The direct current component includes:AC/DC moulds Block DC side dc switch 112, dc bus 113, plug and play DC interface side dc switch 114, energy-storage system in system 115th, all kinds of distributed resource plug and play DC interfaces;The AC/DC modules 111 are opened by AC/DC module DC side direct currents Close 112 and be connected to dc bus 113, energy-storage system 115 is connected by plug and play DC interface side dc switch 112 in system To dc bus 113, all kinds of distributed resource plug and play DC interfaces pass through respective plug and play DC interface side direct current Switch 112 is connected to dc bus 113;All kinds of distributed resource plug and play DC interfaces include:Energy storage interface 116, distribution Formula power interface 117, controllable burden interface 118, general load interface 119, the outer energy-storage system 120 of system and energy storage interface 116 Connection, the outer photovoltaic 121 of system, blower fan 122 are connected with distributed electrical source interface 117, and the outer charging pile 123 of system connects with controllable burden Mouth connection 118, general load 124 is connected system with general load interface 119 outside.
As shown in Fig. 2 distributed resource plug and play exchange interface, distributed resource plug and play DC interface wrap Include:Shield cabinet 201, power conversion unit 202, measuring and controlling protective device 203, communicator 204.Power conversion unit 202, observing and controlling are protected Protection unit 203, communicator 204 are arranged in screen cabinet 201.Distributed resource " plug and play " interface, realize distributed money The equipment in source, the information of microgrid and energetic interaction, possess modularization, standardization feature, can reduce distributed resource construction cost, Reduce to microgrid security implication, the grid-connected debugging efficiency of lifting distributed resource, facilitate user to control distributed resource state.Distribution For formula resource " plug and play " interface as the connector between distributed resource and power network, user does not need manual configuration soft or hard Part, all kinds of random distribution formula resource securities easily grid integration can be achieved by standard interface.
The power conversion unit 202 uses modularized design, and inside includes:DC energy conversion, ac-dc conversion etc. Part, can be arbitrarily assembled according to distributed electrical source category, capacity volume variance.Exchange in interface and store up for distributed resource plug and play Energy interface 107, distributed electrical source interface 108, controllable burden interface 109, general load interface 110 and distributed resource are inserted Have with energy storage interface 116, distributed electrical source interface 117, controllable burden interface 118, general load interface 119 in DC interface The power conversion unit 202 of three types, i.e. AC/DC types, DC/DC types, inactivity changing type.Energy storage interface 107, for photovoltaic 127 and the distributed electrical source interface 108 of direct-current-output type blower fan 126, the controllable burden interface 110 for direct-current charging post 130, The general load 129 of once-through type uses AC/DC types;Energy storage interface 116, distributed electrical source interface 117, controllable burden interface 118, one As load interface 119 use DC/DC types;For synchronous machine 125 with exchange output type blower fan 126 distributed electrical source interface 108, The general load 129 of controllable burden interface 110, AC type for alternating-current charging pile 130 is inactivity changing type, i.e., only provides friendship Streaming socket or exchange interface, can not provide power conversion.
The measuring and controlling protective device 203 is realizing defencive function and remote control function.Defencive function is examined including isolated island Survey, reverse-power protection, overload protection, short-circuit protection, overvoltage protection, under-voltage protection, overcurrent protection, overtemperature protection;Remote control Function includes startup, stopping and off-grid operation.
The function of the communicator 204 includes realizing the communication interfaces such as network interface, RS485, GPRS.
Distributed resource " plug and play " Interface Controller pattern includes:(1)It is grid-connected not limit control model:Distributed power source Maximize and contribute, the energy inversion that generates electricity powers or given power network to load to AC.(2)Dispatching of power netwoks response control mould Formula:The output of adjustment distributed power source downwards so that the power that exchanges of user and power network meets the dispatch command that power network is assigned.
Distributed power source " plug and play " device, the equipment for realizing distributed power source, the information of power network and energetic interaction, tool Standby modularization, standardization feature, distributed power source construction cost can be reduced, reduced on power grid security influence, lifting distributed electrical The grid-connected debugging efficiency in source, user is facilitated to control distributed power source state." plug and play " rating of set conversion section uses module Change the parts such as design, internal direct current energy conversion, ac-dc conversion, can arbitrarily be spelled according to distributed electrical source category, capacity volume variance Dress.The plug and play of distributed power source, ensure the grid-connected flexible access of distributed power source and stable operation, reduce distributed power source To electric network influencing.Distributed power source " plug and play " device is not required to as the connector between distributed power source and power network, user Manual configuration software and hardware is wanted, all kinds of randomness power safeties easily grid integration can be achieved by standard interface.
For energy storage " plug and play " device as the connector between battery and power network, user does not need manual configuration soft or hard Part, storage battery safety easily grid integration can be achieved by standard interface.Energy storage " plug and play " equipment possess it is active/ Reactive power support ability;Possess the V/F and droop control function of isolated island.Source net lotus(Storage)Software uses energy-optimised dispatching technique, The Optimal Control Strategy of the targets such as energy storage peak load shifting, reactive power support, new energy consumption, economical operation is formulated, is led to using standard Letter interface is handed down to energy storage " plug and play " device, energy storage is participated in grid sources net lotus(Storage)Scheduling.
Controllable burden " plug and play " device is that electric automobile, electric ship charging pile are included into power load to control model in order Enclose, build diversity spatial load forecasting equipment and grid side exchange channels, " plug and play " equipment realizes adopting for diversity load Collection, it can communicate, can control.
It is illustrated in figure 3 " plug and play " rating of set block combiner schematic diagram of the present invention.The power conversion unit 202 power requirements use 10kW, 20kW, 50kW(High-power basic module uses 100kW, 200kW, 500kW), pass through basic training The minimum combination of rate module, the power conversion unit 202 of different capabilities is formed, realizes power match plug and play.Power combination Flexibly, dilatation, transport, maintenance upgrade are convenient, are adapted to sorts of systems type(Wind, light etc.), it is easy to engineering configuration.
Prime power block combiner refers to the parallel connection of prime power module, namely realizes that DC/DC is in parallel and DC/AC is in parallel. Power module parallel can be any to increase and decrease different capacity module according to power needs, forms " plug and play " interface of different capabilities, Make " plug and play " nuclear interface standardizing, operation maintenance is convenient, while wired in parallel realizes source lotus power-sharing, reduces inside modules The current stress of power switch pipe, improve the service life of " plug and play " interface.The installation of basic module simultaneously is using easily peace Dress, easily changeable aviation plug and its technology, Fast Installation, are easy to safeguard.
The plug and play of " plug and play " device information interconnection is by measuring and controlling protective device 203, communicator 204 come real It is existing.Measuring and controlling protective device 203 realizes data acquisition, on the spot information remote transmitting, the function such as monitoring, intelligent diagnostics, integrated management in station; IEC104, IEC61850, Modbus stipulations are supported, support serial ports, ethernet communication mode gathered data.Communicator 204 Hold and communicated with WIFI, 4G/GPRS, ether net mode and main website end.
As shown in figure 4, primary equipment of the present invention is installed in prefabricated storehouse, prefabricated storehouse includes:Nacelle, a secondary device, The equipment such as HVAC, illumination, fire-fighting, security protection are formed, and all devices complete associated connections and debugging efforts in factory in cabin, and Transported as an overall or several sliceable monomers to scene.
Bilateral sets hatch door 302 in nacelle 301, while sets " plug and play " interface panel 306;The inside of nacelle 301 is leaned on Bulkhead arrangement has dual power supply switching box 304, distribution box 305;Nacelle screen cabinet 303 inside nacelle 301 includes exchange by electric cabinet, change Device cabinet, direct current are flowed by electric cabinet, feeder cabinet, " plug and play " interface cabinet, observing and controlling cabinet, battery rack, mother cabinet, feeder cabinet etc..
Nacelle 301 is overall to use stainless steel material, and water-repellent paint is coated on surface, to improve the waterproof of prefabricated cabin, antirust Performance.The side of nacelle 301 is provided with two air regulators in diagonally opposed, and air regulator sets dual direction ventilating fan, respectively air inlet, air-out Mouthful, into cross-ventilation in cabin during working condition;Window cover is set outside air regulator, it is rain-proof, dust-proof and prevent biological entrance.
It is made up of inside nacelle 301 equipment such as a secondary device, HVAC, illumination, fire-fighting, security protections, while meets that equipment is transported Row and the work requirements of maintainer.One secondary device is arranged using screen cabinet mode, to meet maintenance needs, at least provided with Maintenance channel wide 600mm.The arrangement of HVAC, illumination, fire-fighting, security protection etc. can be arranged in finishing material wallboard by pipeline, The corresponding pipeline of metope surface can also be passed through.Finishing material selects fire-proof and water-proof material, can add between finishing material and bulkhead Add heat-barrier material.
Cable connection, optical cable connection can use prefabricated cable, prefabricated optical cable between primary equipment and secondary device.For reality Existing modularization, assembly flow shop, the connection of " plug and play interface " between panel and external equipment use aviation formula plug or circle The opto-electric connector of the locking compact form of shape, realizes the standardization of interface.Also special switching screen cabinet can be set to substitute in cabin " plug and play interface " panel.
Fig. 5 is the control system composition schematic diagram of the present invention.Whole control system is divided into mechanical floor, distributed controll layer and collection Middle three levels of decision-making level.Its mechanical floor, distributed AC servo system layer are integrated in prefabricated cabin, and centralized decision-making layer is set according to the actual requirements Put in somewhere secondary device room or Control Room outside prefabricated storehouse, can also be not provided with.All kinds of measure and control devices are the device of mechanical floor, The portable microgrid monitoring system of distributed AC servo system layer will be sent in all kinds of appliance arrangement status datas and service data, it is portable Microgrid monitoring system can be considered the brain of whole portable micro-grid system, realize to the panorama monitoring analysis of microgrid data and energy The formulation of management strategy is measured, is micro-capacitance sensor control main website layer.The portable microgrid monitoring system of distributed AC servo system layer completes energy After the formulation of management strategy, control command is issued to all kinds of measure and control devices.
Its major function of centralized decision-making layer includes:1)The monitoring of multizone randomness power supply real time data and status information; 2)The statistical analysis of big data;3)Fault pre-alarming and history alarm inquiry;4)According to operation maintenance flow scheme design operation maintenance work Make task and work ticket, carry out operation maintenance in whole region in order in a manner of unified standard and work.
Distributed AC servo system layer realizes source-net-lotus control collaboration optimization of portable micro-grid system, and concrete function includes: 1)Randomness electricity optimization is dispatched;2)Randomness power supply is smoothly contributed control;3)Randomness power supply active power scheduling controlling;4) Voltage & reactive power-control;5)Orderly planned supply and use of electric power control.
Mechanical floor includes meeting to send on real time execution facility information, realizes control and O&M.
Three mechanical floor, distributed controll layer and centralized decision-making layer level of corresponding control system of the present invention, communication system It is divided into three communication acquisition terminal, communication sink accumulation, communication main station levels.Its communicate acquisition terminal corresponding device layer, communication sink Accumulation corresponds to distributed controll layer then, and communication main station corresponds to centralized decision-making layer then.Communication acquisition terminal, communication aggregation point are integrated in In prefabricated cabin, in somewhere secondary device room that communication main station is arranged on outside prefabricated storehouse according to the actual requirements or Control Room, may not be used yet Set.Connected between communication acquisition terminal and communication sink accumulation by cable, cable is arranged in prefabricated cabin;Communication sink accumulation with Communicated between communication main station by wired or wireless mode.
As another embodiment of the present invention, the power conversion of all kinds of distributed resource plug and play DC interfaces Device may be configured as any type in AC/DC types, inactivity changing type.
, also can be standby by system peripherals such as photovoltaic outside system, direct-current charging posts as another embodiment of the present invention The prefabricated storehouse of portable micro-grid system is integrated into, turns into the part in portable micro-grid system.
, also can be by system when the capacity of portable micro-grid system is larger as another embodiment of the present invention A nacelle be divided into two or more nacelles, and carried respectively by two or more car bodies.
Described above is only the preferred embodiment of the present invention, it should be pointed out that:For the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (10)

1. a kind of portable micro-grid system, including:Ac high-voltage part, AC low-tension part, direct current component three parts, its feature It is:The ac high-voltage part includes:High voltage interface, transformer high-voltage switch, transformer;High voltage interface and transformer high-voltage Switch is connected, and the other end of transformer high-voltage switch is connected with high voltage side of transformer;The AC low-tension part includes:Transformer Low tension switch, ac bus, plug and play exchange interface side low-voltage alternating-current switch, the exchange of all kinds of distributed resource plug and play connect Mouth, AC/DC modules;The step down side is connected to ac bus by transformer low voltage switch, and AC/DC modules pass through i.e. Plug-and-play exchange interface side low-voltage alternating-current switch is connected to ac bus, and all kinds of distributed resource plug and play exchange interfaces pass through Respective plug and play exchange interface side low-voltage alternating-current switch is connected to ac bus;All kinds of distributed resource plug and play exchanges All kinds of distributed resource connections corresponding with outside system, all kinds of distributed resource plug and play exchanges connect the other end of interface respectively Mouth includes:Energy storage interface, distributed electrical source interface, controllable burden interface, general load interface;The direct current component includes:AC/ It is DC module DC sides dc switch, dc bus, plug and play DC interface side dc switch, energy-storage system in system, all kinds of Distributed resource plug and play DC interface;The AC/DC modules are connected to direct current by AC/DC module DC side dc switch Bus, energy-storage system is connected to dc bus, all kinds of distributed moneys by plug and play DC interface side dc switch in system Source plug and play DC interface is connected to dc bus by respective plug and play DC interface side dc switch;All kinds of distributions Formula resource plug and play DC interface includes:Energy storage interface, distributed electrical source interface, controllable burden interface, general load interface.
A kind of 2. portable micro-grid system according to claim 1, it is characterised in that:The distributed resource plug and play Exchange interface, distributed resource plug and play DC interface include:Shield cabinet, power conversion unit, measuring and controlling protective device, communication Device;The power conversion unit, measuring and controlling protective device, communicator are arranged in screen cabinet.
A kind of 3. portable micro-grid system according to claim 2, it is characterised in that:The power conversion unit includes AC/DC types, DC/DC types, inactivity changing type.
A kind of 4. portable micro-grid system according to claim 2, it is characterised in that:The measuring and controlling protective device is to reality Existing defencive function and remote control function;Defencive function includes isolated island detection, reverse-power protection, overload protection, short-circuit protection, mistake Press protection, under-voltage protection, overcurrent protection, overtemperature protection;Remote control function includes startup, stopping and off-grid operation.
A kind of 5. portable micro-grid system according to claim 2, it is characterised in that:The function of the communicator includes Realize network interface, RS485, GPRS communication interface.
A kind of 6. portable micro-grid system according to claim 1, it is characterised in that:The distributed resource plug and play Exchange interface, the control model of distributed resource plug and play DC interface include:It is grid-connected not limit control model:Distributed electrical Source, which maximizes, contributes, and the energy inversion that generates electricity powers or given power network to load to AC;Dispatching of power netwoks response control pattern: The output of adjustment distributed power source downwards so that the power that exchanges of user and power network meets the dispatch command that power network is assigned.
A kind of 7. portable micro-grid system according to claim 2, it is characterised in that:The power conversion unit is by specification Formed for 10kW, 20kW, 50kW prime power module.
A kind of 8. portable micro-grid system according to claim 1, it is characterised in that:Also include prefabricated storehouse, the movement Formula micro-grid system is installed in prefabricated storehouse, and the prefabricated storehouse includes bilateral in nacelle and sets hatch door, while sets plug and play Interface panel;There are dual power supply switching box, distribution box by bulkhead arrangement inside nacelle;Nacelle screen cabinet inside nacelle include exchange by Electric cabinet, converter cabinet, direct current are by electric cabinet, feeder cabinet, plug and play interface cabinet, observing and controlling cabinet, battery rack, mother cabinet, feeder cabinet.
A kind of 9. portable micro-grid system according to claim 8, it is characterised in that:The nacelle is overall using stainless Steel material, surface scribble water-repellent paint, and nacelle side is provided with two air regulators in diagonally opposed, and air regulator sets dual direction ventilating fan, wind Window cover is set outside window.
A kind of 10. portable micro-grid system according to claim 8, it is characterised in that:Inside the nacelle at least provided with Maintenance channel wide 600mm.
CN201710840099.XA 2017-09-18 2017-09-18 A kind of portable micro-grid system Pending CN107453414A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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CN107947168A (en) * 2017-12-05 2018-04-20 中国能源建设集团江苏省电力设计院有限公司 A kind of interface circuit of movable type micro-grid system
CN108075489A (en) * 2017-12-05 2018-05-25 中国能源建设集团江苏省电力设计院有限公司 A kind of movable type micro-grid system
CN110061519A (en) * 2019-03-06 2019-07-26 中国电力科学研究院有限公司 A kind of electric energy matrix arrangement applied to distributed energy resource system
CN110970930A (en) * 2019-12-30 2020-04-07 青岛益和电气集团股份有限公司 Distributed energy storage control system and method

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CN110061519A (en) * 2019-03-06 2019-07-26 中国电力科学研究院有限公司 A kind of electric energy matrix arrangement applied to distributed energy resource system
CN110970930A (en) * 2019-12-30 2020-04-07 青岛益和电气集团股份有限公司 Distributed energy storage control system and method

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