CN106655229A - Topology applicable to low-voltage distribution network energy router - Google Patents

Topology applicable to low-voltage distribution network energy router Download PDF

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Publication number
CN106655229A
CN106655229A CN201610969394.0A CN201610969394A CN106655229A CN 106655229 A CN106655229 A CN 106655229A CN 201610969394 A CN201610969394 A CN 201610969394A CN 106655229 A CN106655229 A CN 106655229A
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China
Prior art keywords
energy
power
bus
topology
unit
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Pending
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CN201610969394.0A
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Chinese (zh)
Inventor
孙建军
宫金武
朱铃
朱铃一
曾梦迪
黄萌
查晓明
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Wuhan University WHU
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Wuhan University WHU
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Priority to CN201610969394.0A priority Critical patent/CN106655229A/en
Publication of CN106655229A publication Critical patent/CN106655229A/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33561—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having more than one ouput with independent control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

The invention discloses a topology applicable to a low-voltage distribution network energy router. The topology is actually an electrical unit integrating a variety of distributed generations, energy storage systems and intelligent power electronic interfaces. The topology is led out from an AC distribution network. A modularized voltage transformation function is achieved using a high-frequency transformer. A DC bus is arranged to weaken the impact of intermittent output of new energy on a micro grid, improve the ability to receive active power and realize plug and play and power management of a distributed power supply. AC and DC power supply interfaces are provided at the output end, which helps to realize power routing distribution and improves the quality of grid-side voltage. The topology has important value of engineering application.

Description

One kind is applied to low-voltage distribution network energy router topology
Technical field
The invention belongs to power electronics and field of power, are related to a kind of low electricity of distribution based on energy router architectures Pressure is administered circuit topology and is applied to low-voltage distribution network energy router topology and control strategy.
Background technology
At present, power circuit end low-voltage resolution mainly includes：In power circuit end installation transformer, to becoming The circuit of depressor bifurcation is transformed, is improved the total voltage of one section of bus of power distribution network low-voltage lines, reduced using straight distribution transforming Voltage drop, line end install wind-light-electricity complementary distributed generation system, in the automatic benefit of circuit terminal tandem low-voltage Repay device etc..
No matter above-mentioned which kind of scheme also has a variety of deficiencies, such as lifting terminal voltage using transformer can effectively tie Office's line end low-voltage problem, but early investment is big, economy is poor, differ in transformer life cycle management and surely reclaim Investment, and need to be selected to use according to part throttle characteristics.Improving the total voltage of distribution network voltage one section of bus of circuit can effectively delay Solution Voltage force, but it is only applicable to that load fluctuation is less, the obvious power load of part throttle characteristics, and adjusting range is limited, electrically Equipment is chronically at upper voltage limit operation and can also reduce service life.Wind-light-electricity distributed system can alleviate without geographical restrictions use Electrotonus situation, but distribution power flow complication can be made, the sensitivity and reliability of unidirectional protection are affected, while can also make operation Maintenance brings difficulty.Series voltage autocompensation installation can provide no-power vacancy and more directly raise terminal voltage for electrical network, But harmonic component can be produced, noise is brought, and maintenance cost is big.
Following power distribution network and the change that the essential distinction of conventional electrical distribution net is its active method of operation and equipment control technology Leather.By means of the development of power Electric power route deivce, by can source router can Effective Regulation trend, booster tension quality.
The content of the invention
The present invention relates to a kind of electric power energy router containing new forms of energy access, energy storage device for improving system end voltage Topology, accesses the energy source router and provides active and idle propping up for system by series and parallel compensation way in distribution end Support, so as to improve system end voltage, effectively improves the low-voltage problem of distribution end.
The present invention is to adopt the following technical scheme that realization：
One kind is applied to low-voltage distribution network energy router topology, it is characterised in that：Including：Various distributed power generation interface electricity Gas unit, energy-storage system Interface Electrical unit and Intelligent electric power electrical interface electric unit；AC network passes through intelligent electric Power electrical interface electric unit simultaneously accesses dc bus through Electric power route deivce；Photovoltaic battery panel is connect by various distributed power generations Mouth electric unit is simultaneously connected to dc bus through Electric power route deivce；Energy storage device passes through energy-storage system Interface Electrical unit and Jing Cross Electric power route deivce and be connected to dc bus.
It is applied to low-voltage distribution network energy router topology in above-mentioned one kind, the Electric power route deivce includes that PWM full-bridges are whole Stream part PC1, Buck power inverter PC2, DC-DC converter PC3, DC-AC-DC isolated variable part and DC-AC inversions Part；
The Intelligent electric power electrical interface electric unit is isolated by PWM full-bridge rectifications part PC1 through DC-AC-DC Conversion section is exported finally by DC-AC Converting Units；
Various distributed power generation interface electric units are become by Buck power inverters PC2 through DC-AC-DC isolation Change part to export finally by DC-AC Converting Units；
The energy-storage system Interface Electrical unit is exported by DC-DC converter PC3 through DC-AC-DC isolated variables.
It is applied to low-voltage distribution network energy router topology in above-mentioned one kind, the DC-AC-DC isolated variables part includes Three DC-AC-DC isolated converters, respectively with Intelligent electric power electrical interface electric unit, various distributed power generation interfaces electricity Gas unit and energy-storage system Interface Electrical unit are connected；The DC-AC Converting Units include two DC-AC inverters, respectively Connect with Intelligent electric power electrical interface electric unit and various distributed power generation interface electric units.
It is applied to low-voltage distribution network energy router topology, three kinds of output Topology connection sides of Electric power route deivce in above-mentioned one kind Formula：
By three-phase DC-AC-DC isolated converters left side port per be connected with dc bus, right side port often mutually respectively with AC network is connected；
By three-phase DC-AC-DC isolated converters left side port per being connected with dc bus, right side port is used as uninterrupted Supply port；
By single-phase DC-AC-DC isolated converters left side port per being connected with dc bus, right side port supplies as direct current Draw electric port.
It is applied to low-voltage distribution network energy router topology, AC network Jing Fig. 2 three-phase PWM full-bridge circuits in above-mentioned one kind The direct current collection bus of couple in router after PC1 rectifications, PC1 is capable of achieving two-way flow of the power between electrical network and router； In the dc bus side of router, photovoltaic battery panel is connected to dc bus by Buck power inverters (PC2), and PC2 is Single-phase power converter；Energy storage device energy storage or energy supply, DC-DC converter PC3 is bidirectional power converter.
The present invention is compensated by introducing in distribution end containing new forms of energy and energy storage device series and parallel, is that system is provided with Work(, reactive power support, the active loss on compensated line improves distribution terminal voltage, effectively alleviates Demand-side voltage pulsation Big problem, improves the quality of power supply of supply line end.
Description of the drawings
Fig. 1 is the energy source router typical structure containing Ac/dc Power Systems.
Fig. 2 AC-DC three phase rectifiers partial circuit topology.
Fig. 3 DC-AC Converting Unit circuit topologies.
The single-phase DC-DC conversion sections circuit topologies of Fig. 4.
Fig. 5 three-phase individual transforms partial circuit topology.
The single-phase individual transform partial circuit topologys of Fig. 6.
Specific embodiment
Below in conjunction with the accompanying drawings and it is embodied as that the present invention is further elaborated.
The topology actually integrates the electric list of various distributed power generations, energy-storage system and Intelligent electric power electrical interface Unit.It draws from AC distribution net, and using high frequency transformer modular transformation function is realized；Dc bus is set, is weakened new Energy intermittence is exerted oneself the impact to microgrid, is improved active power and is received ability, realizes the plug and play and energy of distributed power source Buret is managed；AC and DC power supply interface is provided in output end, the route assignment of electric energy is realized and improvement is played to voltage on line side quality Effect.
The structure of Electric power route deivce can be divided into Fig. 2 PWM full-bridge rectifications part, Fig. 4 DC-DC conversion sections, Fig. 5 DC- AC-DC isolated variables part, Fig. 3 DC-AC Converting Units and new forms of energy access four layers of part.Parallel connection accesses the full-bridge rectification of electrical network Part and DC-AC-DC isolate changing unit can be to improve the rated voltage and power of circuit by the way of cascade circuit.Electric power Router also provides two kinds of intelligent electrical ports, and the first port produces 50Hz industrial-frequency alternating currents through DC-AC inverter circuits Uninterruption power source (UPS) is provided；Second port is directly drawn by DC-AC-DC isolated variables part, provides straight for load Stream electricity, realizes the multi-energy routing function of Electric power route deivce.
Mode of the Electric power route deivce by energy centralization in dc bus mainly includes tri- kinds of modes of PC1, PC2, PC3.Exchange The direct current collection bus of electrical network couple in router Jing after Fig. 2 three-phase PWM full-bridge circuit PC1 rectifications, PC1 is capable of achieving power in electrical network Two-way flow and router between.In the dc bus side of router, photovoltaic battery panel is connected by power inverter (PC2) To dc bus, and PC2 is single-phase power converter；Energy storage device energy storage or energy supply, so DC-DC converter here PC3 is bidirectional power converter.
PC1, PC2, PC3 Topology connection mode in Fig. 1：
1. AC network accesses dc bus by Fig. 2A C-DC three phase full bridges rectifying part；
2. photovoltaic battery panel is connected to dc bus by Fig. 4 DC-DC conversion sections；
3. energy storage device is connected to dc bus by Fig. 4 DC-DC conversion sections.
Three kinds of output Topology connection modes of Electric power route deivce：
1. by Fig. 5 three-phase individual transform partial left sides port per be connected with dc bus, right side port often phase respectively with AC network is connected；
2. by Fig. 5 three-phase individual transform partial left sides port per being connected with dc bus, right side port is used as uninterrupted Supply port；
3. by the single-phase individual transform partial left side ports of Fig. 6 per being connected with dc bus, right side port supplies as direct current Draw electric port.
Dc bus collects end as the energy of router, gives full play to the advantage of its upper layer module, by current transformer with Cooperation between energy-storage units effectively suppresses the intermittent output of distributed power source to accessing the quality of power supply impact of electrical network, while Outlet side provides supply port effectively utilizes distributed power generation and carries out active support to electrical network and load.Such as Fig. 1, energy stream is in electricity In power router as shown in red dotted line, dc bus collects the active power of new forms of energy port and energy storage port and high in load Peak phase or night Jing carry out series resistive voltage-drop compensation to voltage on line side, while dc bus allotment generation of electricity by new energy and energy storage Active power between device is exchanged, load is relatively low or active to residue during sufficient daylight stores.Current transformer energy Realize that the quadergy between AC electrical network and Electric power route deivce is exchanged, so as to provide the nothing of supply port through dc bus Work(and the compensation demand of net side reactive pressure drop.
In DC-AC-DC isolated variables part, due to directly running inverter parallel three phase, therefore become using high frequency Depressor is isolated, and reaches the purpose of inverter parallel three phase operation.Power equipment space is reduced simultaneously, realizes the mould of router Block, miniaturization, improve the security of power supply.As shown in figure 1, DC- is realized in isolated variable part first with full bridge inverter AC is converted, to reach the purpose that inversion alternating current produces induced field in transformer.Shunt capacitance plays burning voltage, delays Rush the effect of circuit.Finally, AC-DC full-bridge conversion is carried out in high frequency transformer right-hand member, and rectifying and wave-filtering electric capacity is installed, for filtering Except the alternating component in pulsating dc voltage.
Energy storage section can absorb active in system underrun from electrical network, export active in peak times of power consumption, play The effect of " peak load shifting ", lifts the quality of power supply and economic benefit.Meanwhile, can also pass through the series compensation portion of energy source router Point, the active pressure drop on circuit is compensated, it is effectively improved distribution terminal voltage quality.
DC bus-bar voltage can be controlled by PC1, PC2 or PC3, and the effect of PC2 and PC3 is mainly discussed here.Bus Whether the control of voltage depends on power inverter as busbar voltage control converter (BVCC), or as bus current control Device (BCCC).For photovoltaic cell and energy-storage battery, we can be using maximum power point tracking and constant-current charge control System.Therefore, the mode of operation of system can be divided into 4 types according to the charged state of operation principle and battery, arrange such as in table 1 Go out.
Table 1 can source router PC2, PC3 mode of operation
Additionally, some specific working conditions are as described below：
(1) when battery loop is opened a way, electricity exhausts or fills with electric (during charging), and this is equivalent to one zero Current source.Photovoltaic battery panel to load provides whole electric energy, and PC2 works in BVCC states, and such case belongs to pattern 1.
(2) when photovoltaic battery panel is opened a way or during no light, this is equivalent to a zero current source.Battery is to negative Carry and all of electric energy is provided, PC3 works in BVCC states, and such case can range pattern 4.
It should be appreciated that the part that this specification is not elaborated belongs to prior art, it is above-mentioned for preferably enforcement The description of example is more detailed, therefore can not be considered the restriction to scope of patent protection of the present invention, the common skill of this area Art personnel under the ambit protected without departing from the claims in the present invention, can also make and replace under the enlightenment of the present invention Change or deform, each fall within protection scope of the present invention, the present invention's is claimed scope and should be defined by claims.

Claims (5)

  1. It is 1. a kind of to be applied to low-voltage distribution network energy router topology, it is characterised in that：Including：Various distributed power generation interfaces are electric Unit, energy-storage system Interface Electrical unit and Intelligent electric power electrical interface electric unit；AC network passes through Intelligent electric power Electrical interface electric unit simultaneously accesses dc bus through Electric power route deivce；Photovoltaic battery panel passes through various distributed power generation interfaces Electric unit is simultaneously connected to dc bus through Electric power route deivce；Energy storage device is by energy-storage system Interface Electrical unit and passes through Electric power route deivce is connected to dc bus.
  2. 2. according to claim 1 a kind of suitable for low-voltage distribution network energy router topology, it is characterised in that：The electric power Router includes that PWM full-bridge rectifications part PC1, Buck power inverter PC2, the isolation of DC-DC converter PC3, DC-AC-DC become Change part and DC-AC Converting Units；
    The Intelligent electric power electrical interface electric unit is by PWM full-bridge rectifications part PC1 through DC-AC-DC isolated variables Part exports finally by DC-AC Converting Units；
    Various distributed power generation interface electric units are by Buck power inverters PC2 through DC-AC-DC isolated variables portion Divide and exported finally by DC-AC Converting Units；
    The energy-storage system Interface Electrical unit is exported by DC-DC converter PC3 through DC-AC-DC isolated variables.
  3. 3. according to claim 1 a kind of suitable for low-voltage distribution network energy router topology, it is characterised in that：The DC- AC-DC isolated variables part include three DC-AC-DC isolated converters, respectively with Intelligent electric power electrical interface electric unit, Various distributed power generation interface electric units and energy-storage system Interface Electrical unit are connected；The DC-AC Converting Units include Two DC-AC inverters, it is electrically single with Intelligent electric power electrical interface electric unit and various distributed power generation interfaces respectively Unit connects.
  4. 4. according to claim 1 a kind of suitable for low-voltage distribution network energy router topology, it is characterised in that：Electric power route Three kinds of output Topology connection modes of device：
    By three-phase DC-AC-DC isolated converters left side port per be connected with dc bus, right side port often mutually respectively with exchange Electrical network is connected；
    By three-phase DC-AC-DC isolated converters left side port per being connected with dc bus, right side port is used as uninterrupted power supply Port；
    By single-phase DC-AC-DC isolated converters left side port per being connected with dc bus, right side port is used as DC power supply terminal Mouth is drawn.
  5. 5. according to claim 1 a kind of suitable for low-voltage distribution network energy router topology, it is characterised in that：AC network The direct current collection bus of couple in router Jing after Fig. 2 three-phase PWM full-bridge circuit PC1 rectifications, PC1 is capable of achieving power on electrical network and road By the two-way flow between device；In the dc bus side of router, photovoltaic battery panel passes through Buck power inverters（PC2）Connection To dc bus, and PC2 is single-phase power converter；Energy storage device energy storage or energy supply, DC-DC converter PC3 is two-way work( Rate converter.
CN201610969394.0A 2016-10-28 2016-10-28 Topology applicable to low-voltage distribution network energy router Pending CN106655229A (en)

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CN110098619A (en) * 2019-05-20 2019-08-06 上海大学 A kind of multiport power electronics AC transformer system
CN110401882A (en) * 2018-12-14 2019-11-01 特变电工西安电气科技有限公司 A kind of indoor type electric energy router structure
CN112736972A (en) * 2020-12-28 2021-04-30 河海大学 Topological structure of novel energy router and control method thereof

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CN107681697A (en) * 2017-11-01 2018-02-09 国网江苏省电力公司南京供电公司 Store up the energy router topology device and control method of lotus optimum management in source
CN107681697B (en) * 2017-11-01 2021-01-01 国网江苏省电力公司南京供电公司 Energy router topology device and control method for source storage and load optimization management
CN110401882A (en) * 2018-12-14 2019-11-01 特变电工西安电气科技有限公司 A kind of indoor type electric energy router structure
CN110401882B (en) * 2018-12-14 2024-05-10 特变电工西安电气科技有限公司 Indoor electric energy router structure
CN109659946A (en) * 2019-01-08 2019-04-19 广东电网有限责任公司 A kind of distribution end Electric power route deivce topology and its control method
CN110098619A (en) * 2019-05-20 2019-08-06 上海大学 A kind of multiport power electronics AC transformer system
CN112736972A (en) * 2020-12-28 2021-04-30 河海大学 Topological structure of novel energy router and control method thereof

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