CN108123482A - A kind of accumulation energy type photovoltaic grid-connected generating control system - Google Patents

A kind of accumulation energy type photovoltaic grid-connected generating control system Download PDF

Info

Publication number
CN108123482A
CN108123482A CN201611082022.2A CN201611082022A CN108123482A CN 108123482 A CN108123482 A CN 108123482A CN 201611082022 A CN201611082022 A CN 201611082022A CN 108123482 A CN108123482 A CN 108123482A
Authority
CN
China
Prior art keywords
electrically
generating control
boost converters
grid
energy type
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
CN201611082022.2A
Other languages
Chinese (zh)
Inventor
杜菁
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.)
Zhenjiang Shiguwen Intelligent System Development Co Ltd
Original Assignee
Zhenjiang Shiguwen Intelligent System Development 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.)
Filing date
Publication date
Application filed by Zhenjiang Shiguwen Intelligent System Development Co Ltd filed Critical Zhenjiang Shiguwen Intelligent System Development Co Ltd
Priority to CN201611082022.2A priority Critical patent/CN108123482A/en
Publication of CN108123482A publication Critical patent/CN108123482A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • H02J3/382Dispersed generators the generators exploiting renewable energy
    • H02J3/383Solar energy, e.g. photovoltaic energy
    • H02J3/385Maximum power point tracking control for photovoltaic sources
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30Electrical components
    • H02S40/32Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30Electrical components
    • H02S40/38Energy storage means, e.g. batteries, structurally associated with PV modules
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention discloses a kind of accumulation energy type photovoltaic grid-connected generating control systems, and including photovoltaic array, boost converters, DC/AC, DC/DC, inductance filter, accumulator and three phase network, the photovoltaic array is electrically connected with boost converters;The boost converters are electrically connected with DC/AC;The DC/AC is electrically connected with inductance filter;The inductance filter is electrically connected with three phase network;The boost converters are electrically connected with DC/DC;The DC/DC is electrically connected with accumulator.The advantageous effect of the invention is to realize that grid-connected power stabilizes control and the energy that photovoltaic array is sent can be stored in electric network fault so that the utilization ratio of luminous energy is high.

Description

A kind of accumulation energy type photovoltaic grid-connected generating control system
Technical field
The invention belongs to technical field of photovoltaic power generation, and in particular to a kind of accumulation energy type photovoltaic grid-connected generating control system.
Background technology
Photovoltaic generation is pollution-free, noiseless, operating cost is low, is preferable sustainable energy, good development prospect.According to pre- Survey, be up to 13.5% to ratio of the year two thousand fifty solar energy in energy resource structure, be following fossil energy main alternative energy source it One.By development for many years, photovoltaic generation is just gradually from past small-scale off-grid system, to large-scale grid connection power generation direction hair Exhibition.Parallel network power generation technology based on maximal power tracing control and the control of various parallel network reverses has obtained widely studied.
Current photovoltaic grid-connected generating control system, it is impossible to realize grid-connected power stabilize control and in electric network fault not The utilization ratio that energy that photovoltaic array sends and luminous energy can be stored is low.
Therefore, a kind of accumulation energy type photovoltaic grid-connected generating control system is invented to be very necessary.
The content of the invention
It is an object of the invention to provide a kind of accumulation energy type photovoltaic grid-connected generating control system, to solve above-mentioned background technology It is middle to propose current photovoltaic grid-connected generating control system, it is impossible to realize that grid-connected power stabilizes control and cannot in electric network fault The problem of utilization ratio of the energy that sends of storage photovoltaic array and luminous energy is low.
To achieve the above object, the present invention provides following technical solution:A kind of accumulation energy type photovoltaic grid-connected generating control system, Including photovoltaic array, boost converters, DC/AC, DC/DC, inductance filter, accumulator and three phase network, the photovoltaic array It is electrically connected with boost converters;The boost converters are electrically connected with DC/AC;The DC/AC and inductance filter electricity Property connection;The inductance filter is electrically connected with three phase network;The boost converters are electrically connected with DC/DC;It is described DC/DC is electrically connected with accumulator.
Further, the DC/AC is the inverter that a kind of direct current is converted into exchange.
Further, the DC/DC is using a kind of straight for variable DC voltage by fixed DC voltage conversion Flow chopper.
Further, the filter circuit that the inductance filter is made of capacitance, inductance and resistance, and inductance filter can It is effectively filtered out with the frequency beyond the frequency point to specific frequency in power cord or the frequency point, obtains the electricity of a specific frequency Source signal eliminates the power supply signal after a specific frequency.
The technique effect and advantage of the present invention:The accumulation energy type photovoltaic grid-connected generating control system, by the way that Boost is set to convert Device is mainly used for realizing maximal power tracing, while the relatively low voltage of photovoltaic array is raised to higher voltage, makes for DC/AC With improving the utilization rate of luminous energy;DC/AC is used to implement parallel network reverse;The energy storage being made of two-way DC/DC converters and accumulator System is used to implement the energy that grid-connected power stabilizes control and storage photovoltaic array is sent during electric network fault, too high-light-energy Utilization rate.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
In figure:Photovoltaic array;Boost converters;DC/AC;DC/DC;Inductance filter;Accumulator;Three phase network.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment belongs to the scope of protection of the invention.
The present invention provides a kind of accumulation energy type photovoltaic grid-connected generating control system as shown in Figure 1, including photovoltaic array, Boost converters, DC/AC, DC/DC, inductance filter, accumulator and three phase network, the photovoltaic array and boost converters It is electrically connected;The boost converters are electrically connected with DC/AC;The DC/AC is electrically connected with inductance filter;The electricity Feel wave filter to be electrically connected with three phase network;The boost converters are electrically connected with DC/DC;The DC/DC and accumulator electricity Property connection.
Further, the DC/AC is the inverter that a kind of direct current is converted into exchange.
Further, the DC/DC is using a kind of straight for variable DC voltage by fixed DC voltage conversion Flow chopper.
Further, the filter circuit that the inductance filter is made of capacitance, inductance and resistance, and inductance filter can It is effectively filtered out with the frequency beyond the frequency point to specific frequency in power cord or the frequency point, obtains the electricity of a specific frequency Source signal eliminates the power supply signal after a specific frequency.
Operation principle:The accumulation energy type photovoltaic grid-connected generating control system, by the way that Boost is set to be mainly used for realizing Maximal power tracing, while the relatively low voltage of photovoltaic array is raised to higher voltage, it is used for DC/AC, improves the profit of luminous energy With rate;DC/AC is used to implement parallel network reverse;The energy-storage system being made of two-way DC/DC converters and accumulator is used to implement simultaneously The utilization rate of energy, too high-light-energy that storage photovoltaic array is sent when net power stabilizes control and electric network fault.
Using technical solution of the present invention or those skilled in the art under the inspiration of technical solution of the present invention, if Similar technical solution is counted out, and reaches above-mentioned technique effect, is to fall into protection scope of the present invention.

Claims (4)

1. a kind of accumulation energy type photovoltaic grid-connected generating control system, including photovoltaic array, boost converters, DC/AC, DC/DC, electricity Feel wave filter, accumulator and three phase network, it is characterised in that:The photovoltaic array is electrically connected with boost converters;It is described Boost converters are electrically connected with DC/AC;The DC/AC is electrically connected with inductance filter;The inductance filter and three-phase Power grid is electrically connected;The boost converters are electrically connected with DC/DC;The DC/DC is electrically connected with accumulator.
2. a kind of accumulation energy type photovoltaic grid-connected generating control system according to claim 1, it is characterised in that:The DC/AC It is the inverter that a kind of direct current is converted into exchange.
3. a kind of accumulation energy type photovoltaic grid-connected generating control system according to claim 1, it is characterised in that:The DC/DC Using it is a kind of by fixed DC voltage conversion be variable DC voltage dc chopper.
4. a kind of accumulation energy type photovoltaic grid-connected generating control system according to claim 1, it is characterised in that:The inductance filter The filter circuit that ripple device is made of capacitance, inductance and resistance, and inductance filter can be to the frequency of specific frequency in power cord Frequency beyond point or the frequency point is effectively filtered out, and obtains one specific frequency of power supply signal or elimination of a specific frequency Power supply signal after rate.
CN201611082022.2A 2016-11-30 2016-11-30 A kind of accumulation energy type photovoltaic grid-connected generating control system Pending CN108123482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611082022.2A CN108123482A (en) 2016-11-30 2016-11-30 A kind of accumulation energy type photovoltaic grid-connected generating control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611082022.2A CN108123482A (en) 2016-11-30 2016-11-30 A kind of accumulation energy type photovoltaic grid-connected generating control system

Publications (1)

Publication Number Publication Date
CN108123482A true CN108123482A (en) 2018-06-05

Family

ID=62227164

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611082022.2A Pending CN108123482A (en) 2016-11-30 2016-11-30 A kind of accumulation energy type photovoltaic grid-connected generating control system

Country Status (1)

Country Link
CN (1) CN108123482A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102237691A (en) * 2011-07-06 2011-11-09 东北大学 Wind energy and solar energy grid-connected generation system and control method thereof
CN101882896B (en) * 2010-07-12 2013-03-20 山东电力研究院 Modeling method for dynamic equivalent impedance of large-scale photovoltaic power station
CN103532167A (en) * 2013-09-29 2014-01-22 天津理工大学 System and method for judging small-disturbance stability of grid-connected photovoltaic system on basis of FPGA (Field Programmable Gate Array)
CN104079002A (en) * 2014-07-16 2014-10-01 安徽启光能源科技研究院有限公司 Double-closed-loop control method of photovoltaic energy storage system in grid-connection mode
CN204216593U (en) * 2014-12-09 2015-03-18 河北三环电器设备有限公司 Intelligent photovoltaic inverting system
CN104810858A (en) * 2015-05-27 2015-07-29 广西大学 Control method for grid-connected power generation system of optical storage microgrid
CN104810857A (en) * 2015-05-22 2015-07-29 郑州大学 Single-phase grid-connected photovoltaic power generation system output power smooth control device and control method
CN105071438A (en) * 2015-08-12 2015-11-18 安徽明赫新能源有限公司 Photovoltaic energy storage and power generation integrated grid-connected system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101882896B (en) * 2010-07-12 2013-03-20 山东电力研究院 Modeling method for dynamic equivalent impedance of large-scale photovoltaic power station
CN102237691A (en) * 2011-07-06 2011-11-09 东北大学 Wind energy and solar energy grid-connected generation system and control method thereof
CN103532167A (en) * 2013-09-29 2014-01-22 天津理工大学 System and method for judging small-disturbance stability of grid-connected photovoltaic system on basis of FPGA (Field Programmable Gate Array)
CN104079002A (en) * 2014-07-16 2014-10-01 安徽启光能源科技研究院有限公司 Double-closed-loop control method of photovoltaic energy storage system in grid-connection mode
CN204216593U (en) * 2014-12-09 2015-03-18 河北三环电器设备有限公司 Intelligent photovoltaic inverting system
CN104810857A (en) * 2015-05-22 2015-07-29 郑州大学 Single-phase grid-connected photovoltaic power generation system output power smooth control device and control method
CN104810858A (en) * 2015-05-27 2015-07-29 广西大学 Control method for grid-connected power generation system of optical storage microgrid
CN105071438A (en) * 2015-08-12 2015-11-18 安徽明赫新能源有限公司 Photovoltaic energy storage and power generation integrated grid-connected system

Similar Documents

Publication Publication Date Title
CN201194333Y (en) Solar photovoltaic parallel-in system
CN101710716A (en) Grid-connected inverter capable of reducing electrolytic capacitance
CN203352474U (en) Solar photovoltaic grid-connected inverter
CN102013695A (en) Grid-connected topology structure without transformer based on H-bridge used for wind power generation
CN103050994A (en) Scattered rectifying and centralized inverting wind power generation system
CN102457068A (en) Solar photovoltaic grid-connected system based on packet MPPT control
CN203352430U (en) Device for suppressing power frequency ripple current
Vijay et al. Modified Z-source inverter based three phase induction motor drive for solar PV applications
CN204190670U (en) A kind of generating equipment utilizing wind-force and solar energy
CN108123484A (en) A kind of accumulation energy type photovoltaic grid-connected generating control system
CN108123482A (en) A kind of accumulation energy type photovoltaic grid-connected generating control system
Sreekanth et al. A single stage high gain buck-boost inverter with coupled inductor
CN109586331A (en) A kind of accumulation energy type photovoltaic grid-connected generating control system
CN203352194U (en) Dual mode inverter for solar photovoltaic power generation
CN203645569U (en) Large-power photovoltaic grid connected inverter
CN205622521U (en) Wind power converter owner circuit topology structure of two unit series connection formulas of dc bus
CN207705805U (en) A kind of photovoltaic energy storage grid-connected system based on electric power electric transformer
CN202034793U (en) Non-transformer wind power generation grid connection topology structure based on H bridge
CN204244152U (en) A kind of solar domestic photovoltaic power generating system device
CN104734550B (en) A kind of multi input half-bridge combining inverter
CN108123595A (en) A kind of two-way DC/DC converters of photovoltaic generation
Young et al. An input-parallel and output-series-parallel phase-shift full-bridge converter with maximum power point tracking for wind turbine
CN109560698A (en) A kind of two-way DC/DC converter of photovoltaic power generation
CN206412779U (en) A kind of inverter
CN203691330U (en) Tree-shaped solar receiver

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

Application publication date: 20180605

WD01 Invention patent application deemed withdrawn after publication