CN201821124U - Photovoltaic power generation access device - Google Patents

Photovoltaic power generation access device Download PDF

Info

Publication number
CN201821124U
CN201821124U CN2010202793096U CN201020279309U CN201821124U CN 201821124 U CN201821124 U CN 201821124U CN 2010202793096 U CN2010202793096 U CN 2010202793096U CN 201020279309 U CN201020279309 U CN 201020279309U CN 201821124 U CN201821124 U CN 201821124U
Authority
CN
China
Prior art keywords
photovoltaic
load
control circuit
generation access
controller
Prior art date
Application number
CN2010202793096U
Other languages
Chinese (zh)
Inventor
郑洪涛
Original Assignee
上海兆能电力电子技术有限公司
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 上海兆能电力电子技术有限公司 filed Critical 上海兆能电力电子技术有限公司
Priority to CN2010202793096U priority Critical patent/CN201821124U/en
Application granted granted Critical
Publication of CN201821124U publication Critical patent/CN201821124U/en

Links

Classifications

    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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

Abstract

The utility model relates to a photovoltaic power generation access device comprising a solar-cell panel, a DC/DC (direct current ) photovoltaic controller, a DC/AC (alternating current) photovoltaic inverter, a first switching control circuit and a second switching control circuit, wherein the solar-cell panel is connected with a DC load by the DC/DC photovoltaic controller; the solar-cell panel is respectively connected with an AC load and a power grid by the DC/DC photovoltaic controller and the DC/AC photovoltaic inverter; the first switching control circuit is connected among the DC/DC photovoltaic controller, the DC load and the DC/AC photovoltaic inverter; and the second switching control circuit is connected among the DC/AC photovoltaic inverter, the AC load and the power grid. The photovoltaic power generation access device can be used by the DC load and the AC load, and can be operated in an off-grid way or in a grid-connected way; simultaneously, UPS (Uninterrupted Power Supply) function can be provided for the loads, the power is directly supplied to the loads by the power grid, so as to have the function of the uninterrupted power supply; and for the device, the functions are complete, reasonable utilization is realized and the device utilization rate can be improved to the maximum extent.

Description

A kind of photovoltaic generation access device
Technical field
The utility model relates to a kind of photovoltaic generation access device, especially relates to a kind of photovoltaic generation access device of multifunctional general, can be applied to DC load and AC load simultaneously.
Background technology
Along with the raising of people's living standard and the technological progress of society, electric energy becomes the energy that must rely in people's daily life.Yet primary energy such as coal, oil day by day reduces, and people also cause huge pollution to environment when using them.Therefore, people begin to pay attention to the utilization of regenerative resources such as wind energy, solar energy gradually, and new forms of energy will become the important trend that future source of energy utilizes.
Utilize the photovoltaic generation access device of solar energy in the market, type is single, or has only commutation controller, can only connect DC load, for example direct-current LED (light-emitting diode) lamp; Be only to be with inverter output, can only connect AC load, as incandescent lamp, and inverter is exported or is grid type, or is from the net type.Product function, the user selects limited, and the investment utilance is limited, can not utilize resource to greatest extent.
By as seen above-mentioned, existing market has bigger demand space for some universal photovoltaic generation access devices, wish a kind of access device with universal commutation controller and inverter to occur, it both can use for DC load, also can use for AC load; Simultaneously, also both can be incorporated into the power networks again from network operation; Can also be embodied as important load in addition UPS is provided the function of (uninterrupted power supply), when the electric weight of solar cell is not enough to support the important load electricity consumption, can be with the bypass of whole photovoltaic access device, thus by electrical network directly to the important load power supply, play the effect that is equivalent to uninterrupted power supply.
The utility model content
The purpose of this utility model provides a kind of general multifunctional photovoltaic generation access device, and this photovoltaic generation access device both can use for DC load, also can use for AC load; Simultaneously, also both can be incorporated into the power networks again from network operation; Can also be embodied as the function that load provides UPS in addition, directly power to the load, play the effect of uninterrupted power supply by electrical network; This photovoltaic generation access device complete function can be realized the reasonable utilization of equipment, maximized raising utilization rate of equipment and installations.
For achieving the above object, a kind of photovoltaic generation access device of the utility model comprises:
Solar panel;
DC/DC (DC-DC) photovoltaic controller, described solar panel is connected with DC load by this DC/DC photovoltaic controller;
DC/AC (AC/DC) photovoltaic DC-to-AC converter, described solar panel are connected with AC load and electrical network respectively by this DC/DC photovoltaic controller, this DC/AC photovoltaic DC-to-AC converter successively;
First ON-OFF control circuit, its connection are arranged between described DC/DC photovoltaic controller and DC load, the DC/AC photovoltaic DC-to-AC converter;
Second switch control circuit, its connection are arranged between described DC/AC photovoltaic DC-to-AC converter and AC load, the electrical network.
Above-mentioned photovoltaic generation access device, wherein, described first ON-OFF control circuit comprises and connects second control switch that is arranged between described DC/DC photovoltaic controller and the DC load; And connection is arranged on the 3rd control switch between described DC/DC photovoltaic controller and the DC/AC photovoltaic DC-to-AC converter.
Above-mentioned photovoltaic generation access device further also comprises the storage battery that is connected with the DC/DC photovoltaic controller.
Above-mentioned photovoltaic generation access device, wherein, described first ON-OFF control circuit also comprises and connects first control switch that is arranged between DC/DC photovoltaic controller and the storage battery.
Above-mentioned multi-functional photovoltaic generating access device, wherein, described second switch control circuit comprises and connects the 4th control switch that is arranged between described DC/AC photovoltaic DC-to-AC converter and the AC load; And connection is arranged on the 5th control switch between described DC/AC photovoltaic DC-to-AC converter and the electrical network.
Above-mentioned multi-functional photovoltaic generating access device, wherein, this second switch control circuit also comprises and connects the 6th control switch that is arranged between AC load and the electrical network.
Photovoltaic generation access device provided by the utility model has the application of several working ways, realizes multiple difference in functionality.Both can power, can power to AC load again to DC load; Both can realize from network operation, and can realize again being incorporated into the power networks; During the unnecessary actual power consumption of the electric weight that provides when solar panel, also can be fed back to electrical network by the electric energy that this part is unnecessary, during the still not enough load applications of the electric weight that provides when this solar panel, also can realize directly powering to the load simultaneously by electrical network.
By using photovoltaic generation access device provided by the utility model, can make the very flexible applied solar energy fully of user, multiple functional, utilization rate of equipment and installations is higher; And effectively save the consumption of the disposable energy such as coal, oil, also made certain contribution, reach the purpose of environmental protection improving environment for the utilization of regenerative resource.
Description of drawings
Fig. 1 is the connection diagram of a kind of multi-functional photovoltaic generating access device of the utility model.
Embodiment
Below in conjunction with Fig. 1, describe a preferred embodiment of the present utility model in detail.
As shown in Figure 1, Fig. 1 is the connection diagram of a kind of multi-functional photovoltaic generating access device of the utility model.This multi-functional photovoltaic generating access device comprises: solar panel 1, and in the present embodiment, the solar panel that can to adopt by 2 models be YL180 P-23b composes in parallel;
Be connected in the DC/DC photovoltaic controller 2 of solar panel, in the present embodiment, can adopt model is the photovoltaic controller of SD2430;
Be connected in first ON-OFF control circuit 3 of DC/DC photovoltaic controller 2;
The accumulation energy type storage battery 4 that is connected to first ON-OFF control circuit 3 is (in the present embodiment, can adopt model is that the storage battery of 6-GFM-100G is an example), LED lamp DC load 5, DC/AC photovoltaic DC-to-AC converter 6 (in the present embodiment, can adopt model is that the DC/AC photovoltaic DC-to-AC converter of SN240.5ks is an example);
Be connected in the second switch control circuit 7 of DC/AC photovoltaic DC-to-AC converter 6;
Be connected to incandescent lamp AC load 8, the electrical network 9 of switching circuit 7.
First ON-OFF control circuit 3 includes control switch S1, S2, S3, DC/DC photovoltaic controller 2 is connected to LED lamp DC load 5 by control switch S3, DC/DC photovoltaic controller 2 is connected to DC/AC photovoltaic DC-to-AC converter 6 by control switch S2, DC/DC photovoltaic controller 2 is connected to accumulation energy type storage battery 4 by control switch S1, and this accumulation energy type storage battery 4 is as stand-by power supply.
Second switch control circuit 7 includes control switch S4, S5, and DC/AC photovoltaic DC-to-AC converter 6 is connected to incandescent lamp AC load 8 by control switch S4, and DC/AC photovoltaic DC-to-AC converter 6 is connected to electrical network 9 by control switch S5.
This second switch control circuit 7 also comprises control switch S6, and it is connected between incandescent lamp AC load 8 and the electrical network 9.
The photovoltaic generation access device that the utility model provides has the applicable cases of following various multifunctional generals, and specific implementation comprises:
1. during initial condition, each control switch in 2 ON-OFF control circuit of this photovoltaic generation access device all is in off-state;
2. when only needing power supply to give DC load, closed control switch S3 with the direct current of solar panel 1 output through DC/DC photovoltaic controller 2, to similar DC load power supply such as LED lamp 5 grades;
3. when the user only needs electricity to supply with AC load, then disconnect control switch S3, closed control switch S2 and control switch S4, behind DC/DC photovoltaic controller 2 and DC/AC photovoltaic DC-to-AC converter 6, convert the direct current of solar panel 1 output to alternating current to similar AC load power supplies such as incandescent lamps 8;
4. working as the user had both needed to power to DC load, need again when AC load is powered, then simultaneously closed control switch S2, S3, S4, thus in conjunction with above-mentioned 2 and 3 described two kinds of situations, realize simultaneously to AC load power supplies such as DC load such as LED lamp 5 and incandescent lamps 8;
5. the user can insert accumulation energy type storage battery 4 by closed control switch S1 on the basis of above-mentioned 2,3,4 described situations, can be implemented in and use accumulation energy type storage battery 4 as stand-by power supply under net state simultaneously;
6. if electric energy and abundance thereof that current solar panel 1 is provided, on the satisfied basis that various loads are powered, also there is dump energy, then can be incorporated into the power networks this moment, be Closing Switch S2 and S5, and disconnect control switch S1, this access device is connected with electrical network 9 realizations, the unnecessary back electric quantity that can provide solar panel 1 this moment is fed to electrical network 9, to realize making full use of solar energy;
7. when the user has some important loads to increase power supply reliability, when occurring the situation of solar panel 1 electricity shortage again simultaneously, can closed control switch S6 and disconnect control switch S4 and control switch S5, with the bypass of whole photovoltaic generation access device, directly power to AC load by electrical network 9.
By the working method that above-mentioned various photovoltaic generation access devices are provided, it utilizes a plurality of control switchs both can power to DC load, can power to AC load again; Both can realize from network operation, and can realize again being incorporated into the power networks; The electric weight that provides when solar panel is during more than actual power consumption, and also energy back that can this part is unnecessary is to electrical network, when the not enough load applications of electric weight that this solar panel provides, can realize directly being powered to the load by electrical network simultaneously.
By using photovoltaic generation access device provided by the utility model, can make the very flexible applied solar energy fully of user, multiple functional, utilization rate of equipment and installations is higher; And effectively save the consumption of the disposable energy such as coal, oil, also made certain contribution, reach the purpose of environmental protection improving environment for the utilization of regenerative resource.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be conspicuous.Therefore, protection range of the present utility model should be limited to the appended claims.

Claims (6)

1. a photovoltaic generation access device is characterized in that, comprises:
Solar panel (1);
DC/DC photovoltaic controller (2), described solar panel (1) is connected with DC load (5) by this DC/DC photovoltaic controller (2);
DC/AC photovoltaic DC-to-AC converter (6), described solar panel (1) are connected with AC load (8) and electrical network (9) respectively by this DC/DC photovoltaic controller (2), this DC/AC photovoltaic DC-to-AC converter (6) successively;
First ON-OFF control circuit (3), its connection are arranged between described DC/DC photovoltaic controller (2) and DC load (5), the DC/AC photovoltaic DC-to-AC converter (6);
Second switch control circuit (7), its connection are arranged between described DC/AC photovoltaic DC-to-AC converter (6) and AC load (8), the electrical network (9).
2. photovoltaic generation access device as claimed in claim 1 is characterized in that, described first ON-OFF control circuit (3) comprises:
Second control switch (S2), its connection are arranged between described DC/DC photovoltaic controller (2) and the DC load (5);
The 3rd control switch (S3), its connection are arranged between described DC/DC photovoltaic controller (2) and the DC/AC photovoltaic DC-to-AC converter (6).
3. photovoltaic generation access device as claimed in claim 2 is characterized in that, this access device also comprises the storage battery (4) that is connected with DC/DC photovoltaic controller (2).
4. photovoltaic generation access device as claimed in claim 3 is characterized in that, described first ON-OFF control circuit (3) also comprises and connects first control switch (S1) that is arranged between DC/DC photovoltaic controller (2) and the storage battery (4).
5. photovoltaic generation access device as claimed in claim 1 is characterized in that, described second switch control circuit (7) comprises:
The 4th control switch (S4), its connection are arranged between described DC/AC photovoltaic DC-to-AC converter (6) and the AC load (8);
The 5th control switch (S5), its connection are arranged between described DC/AC photovoltaic DC-to-AC converter (6) and the electrical network (9).
6. photovoltaic generation access device as claimed in claim 5 is characterized in that, described second switch control circuit (7) also comprises and connects the 6th control switch (S6) that is arranged between AC load (8) and the electrical network (9).
CN2010202793096U 2010-08-03 2010-08-03 Photovoltaic power generation access device CN201821124U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202793096U CN201821124U (en) 2010-08-03 2010-08-03 Photovoltaic power generation access device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202793096U CN201821124U (en) 2010-08-03 2010-08-03 Photovoltaic power generation access device

Publications (1)

Publication Number Publication Date
CN201821124U true CN201821124U (en) 2011-05-04

Family

ID=43919066

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202793096U CN201821124U (en) 2010-08-03 2010-08-03 Photovoltaic power generation access device

Country Status (1)

Country Link
CN (1) CN201821124U (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102427266A (en) * 2012-01-04 2012-04-25 广东易事特电源股份有限公司 Multifunctional photovoltaic UPS (uninterruptible power supply) system and control method thereof
CN103124135A (en) * 2013-02-06 2013-05-29 北京能高自动化技术股份有限公司 New energy power generation converter control power supply and converter comprising same
CN103229381A (en) * 2011-11-22 2013-07-31 松下电器产业株式会社 Electricity-generation system and wireless power-transmission system
CN103337876A (en) * 2013-06-26 2013-10-02 贵州电力试验研究院 Grid connection and separation control structure and operation method of photovoltaic power generation system
CN103828182A (en) * 2011-09-20 2014-05-28 三菱重工停车机械株式会社 Mechanical parking facility and power supplying method for mechanical parking facility
CN104040829A (en) * 2011-08-19 2014-09-10 罗伯特·博世有限公司 Solar synchronized loads for photovoltaic systems
CN104393616A (en) * 2014-10-20 2015-03-04 江国龙 Solar power generation system based on grid-connected and off-grid integration
CN104967354A (en) * 2015-07-22 2015-10-07 苏州景新电气有限公司 Photovoltaic inverter and photovoltaic inversion system
CN107147147A (en) * 2017-06-15 2017-09-08 山东新华联智能光伏有限公司 Photovoltaic generating system
CN110701788A (en) * 2019-10-11 2020-01-17 科希曼电器有限公司 Heat pump water heater

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104040829B (en) * 2011-08-19 2018-10-23 罗伯特·博世有限公司 The load that solar energy for photovoltaic system synchronizes
CN104040829A (en) * 2011-08-19 2014-09-10 罗伯特·博世有限公司 Solar synchronized loads for photovoltaic systems
CN103828182A (en) * 2011-09-20 2014-05-28 三菱重工停车机械株式会社 Mechanical parking facility and power supplying method for mechanical parking facility
CN103229381A (en) * 2011-11-22 2013-07-31 松下电器产业株式会社 Electricity-generation system and wireless power-transmission system
CN102427266B (en) * 2012-01-04 2014-03-19 广东易事特电源股份有限公司 Multifunctional photovoltaic UPS (uninterruptible power supply) system and control method thereof
CN102427266A (en) * 2012-01-04 2012-04-25 广东易事特电源股份有限公司 Multifunctional photovoltaic UPS (uninterruptible power supply) system and control method thereof
CN103124135A (en) * 2013-02-06 2013-05-29 北京能高自动化技术股份有限公司 New energy power generation converter control power supply and converter comprising same
CN103337876A (en) * 2013-06-26 2013-10-02 贵州电力试验研究院 Grid connection and separation control structure and operation method of photovoltaic power generation system
CN104393616A (en) * 2014-10-20 2015-03-04 江国龙 Solar power generation system based on grid-connected and off-grid integration
CN104967354A (en) * 2015-07-22 2015-10-07 苏州景新电气有限公司 Photovoltaic inverter and photovoltaic inversion system
CN104967354B (en) * 2015-07-22 2018-08-28 北京景新电气技术开发有限责任公司 A kind of photovoltaic DC-to-AC converter and photovoltaic inverting system
CN107147147A (en) * 2017-06-15 2017-09-08 山东新华联智能光伏有限公司 Photovoltaic generating system
CN110701788A (en) * 2019-10-11 2020-01-17 科希曼电器有限公司 Heat pump water heater

Similar Documents

Publication Publication Date Title
CN105207258B (en) A kind of photovoltaic direct-current micro-grid energy cooperative control device
RU2512880C2 (en) Electric energy accumulation system based on accumulator batteries and supercapacitor with network enhancement function
CN103427430B (en) A kind of energy management method of mixed energy storage system in microgrid
CN102005817B (en) Uninterruptible power supply device based on microgrid and dispatching control method thereof
CN103107600B (en) Intelligent charging and power supply system of internet of things and scheduling method thereof
CN102427266B (en) Multifunctional photovoltaic UPS (uninterruptible power supply) system and control method thereof
CN102832706B (en) Distributed power stratified coordination control system of microgrid and method
CN201328089Y (en) Multi-purpose solar power system
CN102315645B (en) Energy router for distributed power generation
CN1322653C (en) Renewable energy resource deflector having multiple function mode
CN200976509Y (en) Complementary type solar energy uninterruption power supply controller
WO2017142218A1 (en) Energy storage system and system operating method
CN102931653A (en) Comprehensive coordination control method of wind-solar direct current micro-grid
CN102111018A (en) Energy storage system and method of controlling same
CN103595348B (en) Family photovoltaic intelligent control system
CN102545261A (en) Micro-grid experiment system
CN101860270B (en) Access system for adequately utilizing wind energy and solar energy and realization method thereof
CN101841188A (en) Hybrid power supply uninterruptible inverted power supply of power feedback type optical network
CN102780254A (en) Photovoltaic charge station
EP1387462A3 (en) Co-generated power supply system
CN101685970A (en) Multipurpose solar energy power generating system
CN202586481U (en) Micro electrical network intelligent balanced charging and power supply system
CN1317801C (en) Wind power generating and network electricity complementary power supply for pumping unit
CN103390900A (en) Distributed photovoltaic energy storage system and energy management method
TWI451661B (en) Alternating current photovoltaic module and method for dispatching electricity

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP02 Change in the address of a patent holder

Address after: 201802 Shanghai, Jiading District Road 188, No. five, 2, 2 floor

Patentee after: Shanghai Zhaoneng Electric & Electronic Technology Co., Ltd.

Address before: 201203 room 500, No. 302 blue wave road, Zhangjiang hi tech park, Shanghai

Patentee before: Shanghai Zhaoneng Electric & Electronic Technology Co., Ltd.

C56 Change in the name or address of the patentee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110504

Termination date: 20180803

CF01 Termination of patent right due to non-payment of annual fee