CN108390389A - Current transformer Poewr control method is interconnected in a kind of master ＆ slave control mixing micro-capacitance sensor - Google Patents
Current transformer Poewr control method is interconnected in a kind of master ＆ slave control mixing micro-capacitance sensor Download PDFInfo
- Publication number
- CN108390389A CN108390389A CN201810223659.1A CN201810223659A CN108390389A CN 108390389 A CN108390389 A CN 108390389A CN 201810223659 A CN201810223659 A CN 201810223659A CN 108390389 A CN108390389 A CN 108390389A
- Authority
- CN
- China
- Prior art keywords
- power
- current transformer
- pro
- accounting
- control
- 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
Links
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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
Current transformer Poewr control method is interconnected in a kind of master ＆ slave control mixing micro-capacitance sensor.Mixing micro-capacitance sensor is made of intercommunion subsystem, direct current subsystem, interconnection converter system and detection communication system.The present invention reflects the operating status of both sides microgrid with alternating current-direct current both sides main control unit capacity occupancy, the operation of current transformer is interconnected using sectional policy control, flowing of the regulation power between microgrid realizes the mutual support of both sides power and the stable operation of mixing micro-grid system under island mode.
Description
Technical field
The present invention relates to interconnect to be under current transformer Poewr control method, especially master ＆ slave control in a kind of mixing micro-capacitance sensor
Interconnection current transformer Poewr control method when off-network pattern.
Background technology
Energy crisis and environmental degradation have pushed wind-power electricity generation, solar energy power generating and miniature gas turbine distributed
The development and utilization in micro- source, in order to solve the problems, such as that the access for being distributed the source that declines and consumption, the concept of micro-capacitance sensor are come into being.Its
In, including the alternating current-direct current mixing micro-capacitance sensor of AC microgrids and direct-current micro-grid has been due to having merged the two kinds of features of microgrid respectively, whole
Conjunction is had higher efficiency in terms of being distributed the source that declines and AC and DC load and compatibility；It, can be with meanwhile by interconnection current transformer
The mutual support of power, improves the power supply reliability of system, becomes the hot spot of current research between realization microgrid.
Include mainly two major classes in the existing control technology research for mixing micro-capacitance sensor interconnection current transformer：Sagging control
System and constant voltage control.Droop control belongs to droop control, using sacrifice micro-capacitance sensor voltage and frequency accuracy as cost, and its
Power distribution is affected by line parameter circuit value；Constant voltage controls the mutual support that then cannot achieve both sides power, and power can only be single
One from side flows to the other side.
Invention content
In order to overcome, degree of regulation is poor, cannot achieve both sides power phase existing for existing mixing micro-capacitance sensor interconnection current transformer
The deficiency mutually supported, the present invention provide a kind of sectional control strategy of interconnection current transformer, can accurately adjust between alternating current-direct current subnet
Flow of power, realize the power-balance of system and the voltage and frequency stabilization of each microgrid.
The technical solution adopted by the present invention to solve the technical problems is：Micro-capacitance sensor is mixed by intercommunion subsystem, direct current
System, interconnection converter system and detection communication system composition.
The intercommunion subsystem include main control unit DG_Vf, from control cells D G_PQ, AC load（L_AC）And power
Monitoring device；Wherein, main control unit DG_Vf uses constant voltage constant frequency control mode, stablizes the busbar voltage of exchange side, from control unit
DG_PQ uses constant dc power control mode, with according to actual conditions, according to command output power, power monitoring apparatus monitors each micro- in real time
The changed power in source and load.
The direct current subsystem include main control unit DG_V, from control cells D G_P, DC load（L_DC）And power prison
Survey device；Wherein, main control unit DG_V uses constant pressure control system, the busbar voltage of stable DC side to be adopted from control cells D G_P
With constant dc power control mode, with according to actual conditions, according to command output power, power monitoring apparatus monitors each micro- source and negative in real time
The changed power of load.
The interconnection converter system includes interconnection current transformer and power controller；Wherein, the exchange side for interconnecting current transformer connects
The ac bus of intercommunion subsystem is connect, DC side connects the DC bus of direct current subsystem, and power controller receives straight to be selfed
The data that subsystem power monitoring device is sent are flowed, are controlled using sectional, interconnection current transformer is calculated and transmits power reference
Value, control interconnection current transformer adjust the flow of power of alternating current-direct current both sides.
The detection communication system includes being distributed in the power monitoring apparatus of exchange subnet and direct current subnet and leading at a high speed
News system.
The interconnection converter system converts collected alternating current-direct current both sides power information to alternating current-direct current both sides main control unit
Capacity status information --- the calculating of capacity occupancy, capacity occupancy is as follows：η dc=（S L_DC-S DG_P-S ILC）/S e DG_V、η ac=
（S L_AC-S DG_PQ+S ILC）/S e DG_Vf, whereinη dc、η acThe respectively capacity occupancy of DC side and exchange side main control unit,S L_DC、S L_ACRespectively DC side and the apparent energy for exchanging lateral load,S DG_P、S DG_PQRespectively DC side and exchange side is from control
The apparent energy of unit,S ILCTo interconnect the apparent energy that current transformer transmits,S e DG_V、S e DG_VfRespectively DC side and exchange side master
Control the rated power of unit；Three-level is set and holds accounting limit valueη 1、η 2With 100%, the load factor of main control unit is divided into three areas
Between.
When side power is sufficient and when the underpower of the other side, using sectional control strategy, control interconnection current transformer work
Make in rectification or inverter mode, flowing of the regulation power between each microgrid, steps are as follows for sectional control strategy（η pro、η recPoint
Not Wei for side, by the appearance accounting of side main control unit,P e pro、P e recRespectively for side, by side main control unit rated capacity,P refIt is mutual
Join current transformer active power reference value）：
（1）Whenη pro＜η 1When, there is control targe I：So that the appearance accounting for side is less than limit valueη 1, it is equal to by the appearance accounting of sideη 1,P ref=(η rec-η 1)P e rec；If cannot be satisfied this situation, enter control targe II：So that the appearance accounting for side is equal to limit valueη 1,
Simultaneously by side appearance accounting section [η 1,η 2),P ref=(η 1-η pro)P e pro；If still cannot be satisfied, continue to increase for side
It contributes, into situation（2）；
（2）Whenη 1≤η pro＜η 2When, there is control targe III：So that for side appearance accounting section [η 1,η 2), by the appearance accounting of side
It is equal toη 2,P ref=(η rec-η 2)P e rec；If cannot be satisfied this situation, enter control targe IV：So that the appearance accounting for side is equal to
Limit valueη 2, while by the appearance accounting of side section [η 2, 1),P ref=(η 2-η pro)P e pro；If still cannot be satisfied, continue to increase
For the output of side, into situation（3）；
（3）Whenη 2≤η proWhen ＜ 1, there is control targe V：So that for side appearance accounting section [η 2, 1), by the appearance accounting of side
Equal to 1,P ref=(η rec-1)P e rec；If cannot be satisfied this situation, enter control targe VI：So that the appearance accounting for side is equal to
1, while load excision should be carried out according to the priority of load so thatS G=S L, at this point, the appearance accounting of both sides is 1,P ref=
(1-η pro)P e pro。
When interconnection current transformer runs on rectification mode, exchange micro-capacitance sensor only provides active power to direct-current grid；When
When interconnection current transformer runs on inverter mode, direct-current grid can provide some reactive powers to exchange micro-capacitance sensor：When idle
Hold accounting and is more than 1（η acQ＞ 1）When, the lateral exchange side of direct current provides reactive power, and reactive power reference qref isQ ref=Q e DG_Vf*
(η acQ- 1), whereinQ e DG_VfFor the idle rated capacity of exchange side main control unit,Q refTo interconnect current transformer reactive power reference
Value.
To avoid interconnection current transformer in the edge frequent switching of rectification and inversion, it is provided with hysteresis comparing element：For side sheet
When ground holds the gradual increase of accounting and is more than 100%, into overload, ILC is stopped, and work(cannot be transmitted to offside again for side
Rate；If load is reduced at this time again, when appearance accounting is reduced to 100% or less, still it cannot be transmitted to offside, until it holds accounting drop
To threshold value ηLHereinafter, being just again introduced into for side state；Wherein, local to hold accountingη lp=( P DG_pro-P ILC)/P e DG_pro,P DG_pro、P e DG_proRespectively for the output power and rated capacity of the active power of side main control unit.
The invention has the advantages that can flexibly be controlled interconnection current transformer under island mode, accurate adjust is handed over
Flow of power between direct current subnet realizes the power-balance of system and the voltage and frequency stabilization of each microgrid.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the mixing micro-capacitance sensor structure chart of the present invention.
Fig. 2 is the sectional control schematic diagram of the present invention.
Fig. 3 is the system control process figure of the present invention.
Fig. 4 is that interconnection current transformer transmits value and power reference calculating process flow chart when the friendship foot of the present invention directly loses.
Fig. 5 is the hysteresis comparing element schematic diagram of the present invention.
Specific implementation mode
In order to illustrate more clearly of technical scheme of the present invention, embodiment will be used simply to be situated between the present invention below
It continues, it should be apparent that, in being described below is only some embodiments of the present invention, and those of ordinary skill in the art are come
It says, without having to pay creative labor, other technical solutions can also be obtained according to these embodiments, also belonged to
Disclosure of the invention range.
Referring to attached drawing 1, mixing micro-capacitance sensor is communicated by intercommunion subsystem, direct current subsystem, interconnection converter system and detection
System forms.
The intercommunion subsystem include main control unit DG_Vf, from control cells D G_PQ, AC load（L_AC）And power
Monitoring device；Wherein, main control unit DG_Vf uses constant voltage constant frequency control mode, stablizes the busbar voltage of exchange side, from control unit
DG_PQ uses constant dc power control mode, with according to actual conditions, according to command output power, power monitoring apparatus monitors each micro- in real time
The changed power in source and load；The direct current subsystem include main control unit DG_V, from control cells D G_P, DC load（L_DC）
And power monitoring apparatus；Wherein, main control unit DG_V uses constant pressure control system, the busbar voltage of stable DC side, from control
Cells D G_P uses constant dc power control mode, with according to actual conditions, according to command output power, power monitoring apparatus monitors in real time
The changed power in each micro- source and load；The interconnection converter system includes interconnection current transformer and power controller；Wherein, interconnection becomes
The ac bus of the exchange side connection intercommunion subsystem of device is flowed, DC side connects the DC bus of direct current subsystem, power control
Device receives the data sent from alternating current-direct current subsystem power monitoring device, is controlled using sectional, interconnection unsteady flow is calculated
Device transmits value and power reference, and control interconnection current transformer adjusts the flow of power of alternating current-direct current both sides；The detection communication system includes
It is distributed in the power monitoring apparatus and high-speed communication system of exchange subnet and direct current subnet.
Referring to attached drawing 2, the interconnection converter system converts collected alternating current-direct current both sides power information to alternating current-direct current two
The capacity status information of side main control unit --- the calculating of capacity occupancy, capacity occupancy is as follows：η dc=（S L_DC-S DG_P-S ILC）/S e DG_V、η ac=（S L_AC-S DG_PQ+S ILC）/S e DG_Vf, whereinη dc、η acRespectively DC side and exchange side main control unit
Capacity occupancy,S L_DC、S L_ACRespectively DC side and the apparent energy for exchanging lateral load,S DG_P、S DG_PQRespectively DC side and
Exchange side from control unit apparent energy,S ILCTo interconnect the apparent energy that current transformer transmits,S e DG_V、S e DG_VfRespectively DC side
With the rated power of exchange side main control unit；Three-level is set and holds accounting limit valueη 1、η 2With 100%, the load factor of main control unit is drawn
It is divided into three sections.
Referring to attached drawing 3 and attached drawing 4, when side power is sufficient and when the underpower of the other side, using sectional control strategy,
Control interconnection current transformer works in rectification or inverter mode, flowing of the regulation power between each microgrid, sectional control strategy step
It is rapid as follows（η pro、η recRespectively for side, by the appearance accounting of side main control unit,P e pro、P e recRespectively for side, by side main control unit
Rated capacity,P refTo interconnect current transformer active power reference value）.
（1）Whenη pro＜η 1When, there is control targe I：So that the appearance accounting for side is less than limit valueη 1, it is equal to by the appearance accounting of sideη 1,P ref=(η rec-η 1)P e rec；If cannot be satisfied this situation, enter control targe II：So that the appearance accounting for side is equal to limit valueη 1, while by the appearance accounting of side section [η 1,η 2),P ref=(η 1-η pro)P e pro；If still cannot be satisfied, continue to increase for side
Output, into situation（2）.
（2）Whenη 1≤η pro＜η 2When, there is control targe III：So that for side appearance accounting section [η 1,η 2), held by side
Accounting is equal toη 2,P ref=(η rec-η 2)P e rec；If cannot be satisfied this situation, enter control targe IV：So that for the appearance accounting of side
Equal to limit valueη 2, while by the appearance accounting of side section [η 2, 1),P ref=(η 2-η pro)P e pro；If still cannot be satisfied, continue
Increase the output for side, into situation（3）.
（3）Whenη 2≤η proWhen ＜ 1, there is control targe V：So that for side appearance accounting section [η 2, 1), it is accounted for by the appearance of side
Than being equal to 1,P ref=(η rec-1)P e rec；If cannot be satisfied this situation, enter control targe VI：So that for the appearance accounting etc. of side
In 1, while load excision should be carried out according to the priority of load so thatS G=S L, at this point, the appearance accounting of both sides is 1,P ref=
(1-η pro)P e pro。
When interconnection current transformer runs on rectification mode, exchange micro-capacitance sensor only provides active power to direct-current grid；When
When interconnection current transformer runs on inverter mode, direct-current grid can provide some reactive powers to exchange micro-capacitance sensor：When idle
Hold accounting and is more than 1（η acQ＞ 1）When, the lateral exchange side of direct current provides reactive power, and reactive power reference qref isQ ref=Q e DG_Vf*
(η acQ- 1), whereinQ e DG_VfFor the idle rated capacity of exchange side main control unit,Q refTo interconnect current transformer reactive power reference
Value.
Compare ring provided with hysteresis referring to attached drawing 5 to avoid interconnection current transformer in the edge frequent switching of rectification and inversion
Section：When holding the gradual increase of accounting for side and being more than 100%, into overload, ILC is stopped, cannot be again to right for side
Transmit power in side；If load is reduced at this time again, when appearance accounting is reduced to 100% or less, still cannot be transmitted to offside, until its
Hold accounting and is down to threshold value ηLHereinafter, being just again introduced into for side state；Wherein, local to hold accountingη lp=( P DG_pro-P ILC)/P e DG_pro,P DG_pro、P e DG_proRespectively for the output power and rated capacity of the active power of side main control unit.
What the present invention did not elaborated partly belongs to techniques well known.
Claims (5)
1. in a kind of master ＆ slave control mixing micro-capacitance sensor interconnect current transformer Poewr control method, which is characterized in that mixing micro-capacitance sensor by
Intercommunion subsystem, direct current subsystem, interconnection converter system and detection communication system composition；
The intercommunion subsystem include main control unit DG_Vf, from control cells D G_PQ, AC load（L_AC）And power monitoring
Device；Wherein, main control unit DG_Vf uses constant voltage constant frequency control mode, stablizes the busbar voltage of exchange side, from control cells D G_
PQ uses constant dc power control mode, with according to actual conditions, according to command output power, power monitoring apparatus monitors each micro- source in real time
With the changed power of load；
The direct current subsystem include main control unit DG_V, from control cells D G_P, DC load（L_DC）And power monitoring dress
It sets；Wherein, main control unit DG_V uses constant pressure control system, the busbar voltage of stable DC side, from control cells D G_P using fixed
Power control mode, with, according to command output power, power monitoring apparatus monitors each micro- source and load in real time according to actual conditions
Changed power；
The interconnection converter system includes interconnection current transformer and power controller；Wherein, the exchange side connection for interconnecting current transformer is handed over
The ac bus of subsystem is flowed, DC side connects the DC bus of direct current subsystem, and power controller is received from alternating current-direct current
The data that system power monitoring device is sent, are controlled using sectional, and interconnection current transformer is calculated and transmits value and power reference, control
System interconnection current transformer adjusts the flow of power of alternating current-direct current both sides；
The detection communication system includes power monitoring apparatus and the high speed communication system for being distributed in exchange subnet and direct current subnet
System.
2. current transformer Poewr control method is interconnected in a kind of master ＆ slave control mixing micro-capacitance sensor according to claim 1, it is special
Sign is that the interconnection converter system converts collected alternating current-direct current both sides power information to alternating current-direct current both sides main control unit
Capacity status information --- the calculating of capacity occupancy, capacity occupancy is as follows：η dc=（S L_DC-S DG_P-S ILC）/S e DG_V、η ac=
（S L_AC-S DG_PQ+S ILC）/S e DG_Vf, whereinη dc、η acThe respectively capacity occupancy of DC side and exchange side main control unit,S L_DC、S L_ACRespectively DC side and the apparent energy for exchanging lateral load,S DG_P、S DG_PQRespectively DC side and exchange side is from control
The apparent energy of unit,S ILCTo interconnect the apparent energy that current transformer transmits,S e DG_V、S e DG_VfRespectively DC side and exchange side master
Control the rated power of unit；Three-level is set and holds accounting limit valueη 1、η 2With 100%, the load factor of main control unit is divided into three areas
Between.
3. current transformer Poewr control method is interconnected in a kind of master ＆ slave control mixing micro-capacitance sensor according to claim 2, it is special
Sign is, when side power is sufficient and when the underpower of the other side, using sectional control strategy, control interconnection current transformer work
In rectification or inverter mode, flowing of the regulation power between each microgrid, steps are as follows for sectional control strategy（η pro、η recRespectively
For for side, by the appearance accounting of side main control unit,P e pro、P e recRespectively for side, by side main control unit rated capacity,P refFor interconnection
Current transformer active power reference value）：
（1）Whenη pro＜η 1When, there is control targe I：So that the appearance accounting for side is less than limit valueη 1, it is equal to by the appearance accounting of sideη 1,P ref=(η rec-η 1)P e rec；If cannot be satisfied this situation, enter control targe II：So that the appearance accounting for side is equal to limit valueη 1,
Simultaneously by side appearance accounting section [η 1,η 2),P ref=(η 1-η pro)P e pro；If still cannot be satisfied, continue to increase for side
It contributes, into situation（2）；
（2）Whenη 1≤η pro＜η 2When, there is control targe III：So that for side appearance accounting section [η 1,η 2), by the appearance accounting of side
It is equal toη 2,P ref=(η rec-η 2)P e rec；If cannot be satisfied this situation, enter control targe IV：So that the appearance accounting for side is equal to
Limit valueη 2, while by the appearance accounting of side section [η 2, 1),P ref=(η 2-η pro)P e pro；If still cannot be satisfied, continue to increase
For the output of side, into situation（3）；
（3）Whenη 2≤η proWhen ＜ 1, there is control targe V：So that for side appearance accounting section [η 2, 1), by the appearance accounting etc. of side
In 1,P ref=(η rec-1)P e rec；If cannot be satisfied this situation, enter control targe VI：So that the appearance accounting for side is equal to 1,
Load excision should be carried out according to the priority of load simultaneously so thatS G=S L, at this point, the appearance accounting of both sides is 1,P ref=(1-η pro)P e pro。
4. according to claim 2 and interconnection current transformer power control in a kind of master ＆ slave control mixing micro-capacitance sensor described in claim 3
Method processed, which is characterized in that when interconnection current transformer runs on rectification mode, exchange micro-capacitance sensor is only provided with to direct-current grid
Work(power；When interconnection current transformer runs on inverter mode, direct-current grid can provide some idle work(to exchange micro-capacitance sensor
Rate：When no power capacity accounting is more than 1（η acQ＞ 1）When, the lateral exchange side of direct current provides reactive power, and reactive power reference qref isQ ref
=Q e DG_Vf*(η acQ- 1), whereinQ e DG_VfFor the idle rated capacity of exchange side main control unit,Q refTo interconnect the idle work(of current transformer
Rate reference value.
5. according to claim 2 and interconnection current transformer power control in a kind of master ＆ slave control mixing micro-capacitance sensor described in claim 3
Method processed, which is characterized in that avoid interconnection current transformer in the edge frequent switching of rectification and inversion, compare ring provided with hysteresis
Section：When holding the gradual increase of accounting for side and being more than 100%, into overload, ILC is stopped, cannot be again to right for side
Transmit power in side；If load is reduced at this time again, when appearance accounting is reduced to 100% or less, still cannot be transmitted to offside, until its
Hold accounting and is down to threshold value ηLHereinafter, being just again introduced into for side state；Wherein, local to hold accountingη lp=( P DG_pro-P ILC)/P e DG_pro,P DG_pro、P e DG_proRespectively for the output power and rated capacity of the active power of side main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810223659.1A CN108390389A (en) | 2018-03-19 | 2018-03-19 | Current transformer Poewr control method is interconnected in a kind of master ＆ slave control mixing micro-capacitance sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810223659.1A CN108390389A (en) | 2018-03-19 | 2018-03-19 | Current transformer Poewr control method is interconnected in a kind of master ＆ slave control mixing micro-capacitance sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108390389A true CN108390389A (en) | 2018-08-10 |
Family
ID=63067012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810223659.1A Pending CN108390389A (en) | 2018-03-19 | 2018-03-19 | Current transformer Poewr control method is interconnected in a kind of master ＆ slave control mixing micro-capacitance sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108390389A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888846A (en) * | 2019-03-06 | 2019-06-14 | 华北电力大学 | A kind of alternating current-direct current mixing micro-capacitance sensor interconnection Converter Capacity Optimal Configuration Method |
| CN111463821A (en) * | 2020-05-20 | 2020-07-28 | 国网江苏省电力有限公司宿迁供电分公司 | Equal-load-rate master-slave control method suitable for direct-current power distribution network |
| CN113224801A (en) * | 2021-04-25 | 2021-08-06 | 杭州电子科技大学 | Power coordination control method suitable for direct-current interconnected micro-grid system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852406A (en) * | 2015-04-27 | 2015-08-19 | 湖南大学 | Mixed micro-grid system based on power electronic transformer and power control method of system |
| CN105356519A (en) * | 2015-12-07 | 2016-02-24 | 北京交通大学 | AC-DC hybrid micro power grid control method and apparatus |
| CN205429734U (en) * | 2016-03-15 | 2016-08-03 | 华北电力大学（保定） | Little grid system of cluster hybrid AC/DC of polycyclic generating line |
-
2018
- 2018-03-19 CN CN201810223659.1A patent/CN108390389A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852406A (en) * | 2015-04-27 | 2015-08-19 | 湖南大学 | Mixed micro-grid system based on power electronic transformer and power control method of system |
| CN105356519A (en) * | 2015-12-07 | 2016-02-24 | 北京交通大学 | AC-DC hybrid micro power grid control method and apparatus |
| CN205429734U (en) * | 2016-03-15 | 2016-08-03 | 华北电力大学（保定） | Little grid system of cluster hybrid AC/DC of polycyclic generating line |
Non-Patent Citations (2)
| Title |
|---|
| LIHU JIA 等: ""Analysis of the Transition Between Multiple Operational Modes for Hybrid AC/DC Microgrids"", 《CSEE JOURNAL OF POWER AND ENERGY SYSTEMS》 * |
| 朱永强 等: ""交直流混合微电网拓扑与基本控制策略综述"", 《高电压技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888846A (en) * | 2019-03-06 | 2019-06-14 | 华北电力大学 | A kind of alternating current-direct current mixing micro-capacitance sensor interconnection Converter Capacity Optimal Configuration Method |
| CN111463821A (en) * | 2020-05-20 | 2020-07-28 | 国网江苏省电力有限公司宿迁供电分公司 | Equal-load-rate master-slave control method suitable for direct-current power distribution network |
| CN113224801A (en) * | 2021-04-25 | 2021-08-06 | 杭州电子科技大学 | Power coordination control method suitable for direct-current interconnected micro-grid system |
| CN113224801B (en) * | 2021-04-25 | 2022-06-03 | 杭州电子科技大学 | Power coordination control method suitable for direct-current interconnected micro-grid system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | An AC–DC hybrid multi-port energy router with coordinated control and energy management strategies | |
| US10211721B2 (en) | DC/AC converter apparatus comprising means for controlling the reactive power and power conversion and generation system comprising such DC/AC converter apparatus | |
| CN103178549B (en) | A kind of method of controlling the auxiliary grid-connected system generating of photovoltaic | |
| CN105262096B (en) | The active distribution network electric voltage frequency method of adjustment of meter and photovoltaic maximal power tracing | |
| CN105743127A (en) | Household new energy power generation intelligent control system and control method | |
| CN104135030B (en) | Flexible island grid-connection control device and method for smart power grids | |
| CN107017615B (en) | A kind of direct current electrical spring distributed control method and system based on consistency | |
| CN106684919B (en) | Improved Cascade-type photovoltaic grid-connected inverter method for controlling power balance | |
| CN104600719B (en) | A kind of photovoltaic generating system grid integration Comprehensive Reactive Power Compensation control system and method | |
| CN104113087B (en) | Solar UPS system | |
| CN104810850A (en) | Non-critical load continuously adjustable DC (direct current) micro-grid off-grid and on-grid unified and coordinated control method | |
| CN108390389A (en) | Current transformer Poewr control method is interconnected in a kind of master ＆ slave control mixing micro-capacitance sensor | |
| CN108023347A (en) | A kind of hierarchical coordinative control method of direct-current grid | |
| CN109659941A (en) | A kind of alternating current-direct current mixing micro-capacitance sensor autonomous control method and system | |
| CN106787111A (en) | A kind of timesharing bi-directional voltage stabilizing hybrid inverter and its control method | |
| CN110572067B (en) | Island energy storage type power unit series micro-grid structure and control method | |
| CN108879797B (en) | Active power distribution network port PQ control method | |
| CN109713711B (en) | Voltage drop distributed photovoltaic inverter reactive power coordination control strategy | |
| CN108599255A (en) | A kind of micro-grid coordination control method considering electric-gas interconnection | |
| CN204668970U (en) | Microgrid control system | |
| CN217848963U (en) | Building energy router with intelligent switch array | |
| CN204089221U (en) | A kind of solar energy ups system | |
| Baros et al. | Investigation of communication delay impact on DC microgrids with adaptive droop control | |
| CN110429643A (en) | Collaboration starts method and system between collecting the grade of system suitable for collecting and distributing type photovoltaic DC | |
| CN106329531B (en) | A kind of alternating current-direct current mixing micro-capacitance sensor power flow control method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180810 |