CN105186672A - Hybrid circuit topology structure - Google Patents
Hybrid circuit topology structure Download PDFInfo
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- CN105186672A CN105186672A CN201510688315.4A CN201510688315A CN105186672A CN 105186672 A CN105186672 A CN 105186672A CN 201510688315 A CN201510688315 A CN 201510688315A CN 105186672 A CN105186672 A CN 105186672A
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a hybrid circuit topology structure which comprises a boost converter, wherein a photovoltaic cell panel is connected with the input of the boost converter; the output of the boost converter is connected with a direct-current bus; a battery is connected with the input end of a bidirectional transducer; the output of the bidirectional transducer is connected with the direct-current bus; a positive electrode of the photovoltaic cell panel is connected with a positive pole of a diode D1; a negative pole of the diode D1 is connected with an electronic switch; a direct-current side of an inverter is connected with the direct-current bus; an alternating-current side of the inverter is connected with a power grid and a load. According to the hybrid circuit topology structure, the photovoltaic cell panel is capable of charging the battery only through a one-stage structure, and further independently supplying power to the power grid or the load through a two-stage circuit structure; the power generation efficiency is high, the conversion efficiency of the system can be effectively improved, the power density of a power electronic system with multiple types of input is improved, and further the system cost is lowered.
Description
Technical field
The present invention relates to a kind of hybrid-type circuit topological structure, belong to electric and electronic technical field.
Background technology
Photovoltaic generation and battery energy storage with the use of, reliable and stable electric power can be realized and export, the electrical problem of remote districts can either be solved, effectively can meet again the electricity consumption breach of developed regions, reduce carbon emission, improve air pollution.So hybrid-type system is risen gradually, is subject to extensive concern.
In the system of photovoltaic, energy storage Mixed design, hybrid-type inverter is the key factor realizing reliable and stable electric power output.The circuit structure that current hybrid-type inverter adopts usually as shown in Figure 1, is on the basis of the photovoltaic DC-to-AC converter of existing two-stage type, increases the photovoltaic charger of band MPPT (maximal power tracing).Wherein photovoltaic battery panel charges the battery and to be completed by one-level Buck circuit, battery discharge is completed (Boost circuit+INV inverter circuit) by two-stage circuit structure, the discharge and recharge overall efficiency of battery is high, but, in the system of light storage Mixed design, most of the time is operated in photovoltaic separately to the pattern of electrical network or load supplying, the circuit structure of Fig. 1, when photovoltaic is to mains supply, complete this function (Buck circuit+Boost circuit+INV inverter circuit) by the circuit structures of three grades, generating efficiency is very low.Meanwhile, the mode of operation of three grades also makes Systematical control become more complicated, is not easy steady operation.
Fig. 2 is the circuit structure that another kind of hybrid-type inverter adopts usually, is on the basis of the photovoltaic DC-to-AC converter of existing many MPPT two-stage type, one of them Boost circuit is changed to reversible transducer.Wherein, when photovoltaic battery panel is separately to electrical network or load supplying, be only made up of (Boost circuit+INV inverter circuit) two-stage circuit structure, generating efficiency is high.But, photovoltaic battery panel charges the battery and to be made up of (Boost circuit+Buck reduction voltage circuit) two-stage circuit, battery discharge also has two-stage circuit structure (Boost circuit+INV inverter circuit), and battery charging and discharging overall efficiency is lower.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of for photovoltaic, energy storage mixed input system, photovoltaic generation high efficiency and the high comprehensive conversion efficiency of battery charging and discharging can be realized, hybrid-type circuit topological structure that control mode is fairly simple simultaneously simultaneously.
In order to solve the problems of the technologies described above, technical scheme of the present invention is to provide a kind of hybrid-type circuit topological structure, it is characterized in that: comprise booster converter, photovoltaic battery panel is connected with the input of booster converter, and booster converter exports and is connected with DC bus; Battery is connected with the input of reversible transducer, and the output of reversible transducer is connected with DC bus by electronic switch; The positive pole of photovoltaic battery panel is connected with the anode of diode D1, and the negative electrode of diode D1 is connected with electronic switch; Inverter direct-flow side is connected with DC bus, and the AC of inverter is connected with electrical network and load.
Preferably, described electronic switch is diode D2, and the anode of diode D2 is connected with the anode of described reversible transducer and diode D1, and the negative electrode of diode D2 is connected with described DC bus.
Preferably, described photovoltaic battery panel is charged to battery by diode D1 and reversible transducer; Battery, by reversible transducer, diode D2 and inverter, discharges to electrical network and load; Photovoltaic battery panel, by booster converter and inverter, provides energy to electrical network and load; Inverter is unified coordinates the power of battery charging and discharging and the power output of photovoltaic battery panel.
Preferably, described electronic switch is bidirectional electronic switch Q1.
Preferably, described bidirectional electronic switch Q1 is the MOSFET pipe of band anti-paralleled diode, and the source electrode of MOSFET pipe is connected with the negative electrode of described diode D1 and described reversible transducer, and the drain electrode of MOSFET pipe is connected with described DC bus.
Preferably, described photovoltaic battery panel is charged to battery by diode D1 and reversible transducer, and turn off MOSFET pipe in the process, now photovoltaic battery panel is by booster converter and inverter, also can provide energy to electrical network and load; Discharged to battery by reversible transducer, MOSFET pipe and inverter, conducting MOSFET manages in the process.
Preferably, conducting MOSFET manages, and also can be charged to battery by inverter, MOSFET pipe, reversible transducer by electrical network.
Preferably, described bidirectional electronic switch Q1 is the IGBT pipe of band anti-paralleled diode, and the transmitter pole of IGBT pipe is connected with the negative electrode of described diode D1 and described reversible transducer; The collector electrode of IGBT pipe is connected with described DC bus.
Preferably, described photovoltaic battery panel is managed by IGBT and reversible transducer charges to battery, and turn off IGBT pipe in the process, now photovoltaic battery panel is by booster converter and inverter, also can provide energy to electrical network and load; Discharged to battery by reversible transducer, IGBT pipe and inverter, conducting IGBT manages in the process.
Preferably, conducting IGBT manages, and also can be charged to battery by inverter, IGBT pipe, reversible transducer by electrical network.
Circuit topological structure provided by the invention, achieve photovoltaic battery panel and charge the battery and only have stage circuit, battery charging and discharging overall efficiency obtains effective lifting.Meanwhile, when photovoltaic battery panel is separately to electrical network or load supplying, be only made up of (Boost circuit+INV inverter circuit) two-stage circuit structure, generating efficiency is high, achieves the optimum of each mode of operation efficiency of hybrid inverter.Effectively can improve the conversion efficiency of system, improve the power density of the power electronic system of multiple input, reduce the cost of system simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of electrical block diagram that hybrid-type inverter adopts usually;
Fig. 2 is the another kind of electrical block diagram that hybrid-type inverter adopts usually;
Hybrid-type circuit topological structure schematic diagram that Fig. 3 provides for embodiment 1;
Hybrid-type circuit topological structure schematic diagram that Fig. 4 provides for embodiment 2.
Embodiment
For making the present invention become apparent, hereby with several preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment 1
Hybrid-type circuit topological structure schematic diagram that Fig. 3 provides for embodiment 1, described hybrid-type circuit topological structure comprises booster converter, reversible transducer, inverter, diode D1, diode D2, photovoltaic battery panel is connected with the input of booster converter, booster converter exports and is connected with DC bus (BUS+, BUS-); Battery is connected with the input of reversible transducer, and the output of reversible transducer is connected by diode D2 and DC bus (BUS+, BUS-); The positive pole of photovoltaic battery panel is connected with the anode of diode D1, and the negative electrode of diode D1 is connected with the anode of diode D2; Inverter direct-flow side and DC bus (BUS+, BUS-) are connected, and the AC of inverter is connected with electrical network, load.
Photovoltaic battery panel is charged to battery by diode D1 and reversible transducer; Battery is by reversible transducer, diode D2 and inverter, and discharge to electrical network and load, achieve the discharge and recharge that three grades of circuit complete battery, overall efficiency is high; Photovoltaic battery panel, by booster converter and inverter, provides energy to electrical network and load, also achieves high generating efficiency.Inverter is unified coordinates the power of battery charging and discharging and the power output of photovoltaic battery panel.
Wherein, booster converter can also be the converter of other DC-DC.
Embodiment 2
Hybrid-type circuit topological structure schematic diagram that Fig. 4 provides for embodiment 2, it is on the basis of Fig. 3, diode D2 is replaced by bidirectional electronic switch Q1, this change makes on the basis of the operation principle of Fig. 3, and electrical network also can be charged to battery by inverter, bidirectional electronic switch Q1, reversible transducer.Mode of operation is more flexible, various, can meet more application demand.
Bidirectional electronic switch Q1 selects the MOSFET pipe of band anti-paralleled diode.
Hybrid-type circuit topological structure comprises the MOSFET of booster converter, reversible transducer, inverter, diode D1, band anti-paralleled diode, photovoltaic battery panel is connected with the input of booster converter, booster converter exports and is connected with DC bus (BUS+, BUS-); Battery is connected with the input of reversible transducer, and the output of reversible transducer is connected with DC bus (BUS+, BUS-) by MOSFET pipe; The positive pole of photovoltaic battery panel is connected with the anode of diode D1, and the negative electrode of diode D1 is connected with the source electrode of MOSFET pipe; The drain electrode of MOSFET pipe and DC bus (BUS+, BUS-) are connected, and inverter direct-flow side and DC bus (BUS+, BUS-) are connected, and the AC of inverter is connected with electrical network, load.
Photovoltaic battery panel is charged to battery by diode D1 and reversible transducer, need in the process to turn off MOSFET pipe, realize effective isolation of DC bus-bar voltage and photovoltaic voltage, can ensure that photovoltaic battery panel passes through booster converter and inverter simultaneously, also can provide energy to electrical network and load.By reversible transducer, MOSFET pipe and inverter, battery is discharged, can manage by conducting MOSFET, higher cell discharge efficiency can be realized.
Wherein, booster converter can also be the converter of other DC-DC.
Embodiment 3
The difference of the present embodiment and embodiment 2 is: selected by bidirectional electronic switch Q1 the IGBT being with anti-paralleled diode to manage.
Hybrid-type circuit topological structure comprises the IGBT pipe of booster converter, reversible transducer, inverter, diode D1, band anti-paralleled diode, photovoltaic battery panel is connected with the input of booster converter, booster converter exports and is connected with DC bus (BUS+, BUS-); Battery is connected with the input of reversible transducer, and the output of reversible transducer is connected with DC bus (BUS+, BUS-) by IGBT pipe; The positive pole of photovoltaic battery panel is connected with the anode of diode D1, and the negative electrode of diode D1 is connected with the transmitter pole of IGBT pipe; The collector electrode of IGBT pipe and DC bus (BUS+, BUS-) are connected, and inverter direct-flow side and DC bus (BUS+, BUS-) are connected, and the AC of inverter is connected with electrical network, load.
Photovoltaic battery panel is managed by IGBT and reversible transducer charges to battery, need in the process to turn off IGBT pipe, realize effective isolation of DC bus-bar voltage and photovoltaic voltage, can ensure that photovoltaic battery panel passes through booster converter and inverter simultaneously, also can provide energy to electrical network and load.By reversible transducer, IGBT pipe and inverter, battery is discharged, can manage by conducting IGBT, higher cell discharge efficiency can be realized.
Wherein, booster converter can also be the converter of other DC-DC.
Claims (10)
1. a hybrid-type circuit topological structure, is characterized in that: comprise booster converter, photovoltaic battery panel is connected with the input of booster converter, and booster converter exports and is connected with DC bus; Battery is connected with the input of reversible transducer, and the output of reversible transducer is connected with DC bus by electronic switch; The positive pole of photovoltaic battery panel is connected with the anode of diode D1, and the negative electrode of diode D1 is connected with electronic switch; Inverter direct-flow side is connected with DC bus, and the AC of inverter is connected with electrical network and load.
2. a kind of hybrid-type circuit topological structure as claimed in claim 1, it is characterized in that: described electronic switch is diode D2, the anode of diode D2 is connected with the anode of described reversible transducer and diode D1, and the negative electrode of diode D2 is connected with described DC bus.
3. a kind of hybrid-type circuit topological structure as claimed in claim 2, is characterized in that: described photovoltaic battery panel is charged to battery by diode D1 and reversible transducer; Battery, by reversible transducer, diode D2 and inverter, discharges to electrical network and load; Photovoltaic battery panel, by booster converter and inverter, provides energy to electrical network and load; Inverter is unified coordinates the power of battery charging and discharging and the power output of photovoltaic battery panel.
4. a kind of hybrid-type circuit topological structure as claimed in claim 1, is characterized in that: described electronic switch is bidirectional electronic switch Q1.
5. a kind of hybrid-type circuit topological structure as claimed in claim 4, it is characterized in that: described bidirectional electronic switch Q1 is the MOSFET pipe of band anti-paralleled diode, the source electrode of MOSFET pipe is connected with the negative electrode of described diode D1 and described reversible transducer, and the drain electrode of MOSFET pipe is connected with described DC bus.
6. a kind of hybrid-type circuit topological structure as claimed in claim 5, it is characterized in that: described photovoltaic battery panel is charged to battery by diode D1 and reversible transducer, turn off MOSFET pipe in the process, now photovoltaic battery panel is by booster converter and inverter, also can provide energy to electrical network and load; Discharged to battery by reversible transducer, MOSFET pipe and inverter, conducting MOSFET manages in the process.
7. a kind of hybrid-type circuit topological structure as claimed in claim 5, is characterized in that: conducting MOSFET manages, and also can be charged to battery by inverter, MOSFET pipe, reversible transducer by electrical network.
8. a kind of hybrid-type circuit topological structure as claimed in claim 4, is characterized in that: described bidirectional electronic switch Q1 is the IGBT pipe of band anti-paralleled diode, and the transmitter pole of IGBT pipe is connected with the negative electrode of described diode D1 and described reversible transducer; The collector electrode of IGBT pipe is connected with described DC bus.
9. a kind of hybrid-type circuit topological structure as claimed in claim 8, it is characterized in that: described photovoltaic battery panel is managed by IGBT and reversible transducer charges to battery, turn off IGBT pipe in the process, now photovoltaic battery panel is by booster converter and inverter, also can provide energy to electrical network and load; Discharged to battery by reversible transducer, IGBT pipe and inverter, conducting IGBT manages in the process.
10. a kind of hybrid-type circuit topological structure as claimed in claim 8, is characterized in that: conducting IGBT manages, and also can be charged to battery by inverter, IGBT pipe, reversible transducer by electrical network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688315.4A CN105186672A (en) | 2015-10-21 | 2015-10-21 | Hybrid circuit topology structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688315.4A CN105186672A (en) | 2015-10-21 | 2015-10-21 | Hybrid circuit topology structure |
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| CN105186672A true CN105186672A (en) | 2015-12-23 |
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| CN201510688315.4A Pending CN105186672A (en) | 2015-10-21 | 2015-10-21 | Hybrid circuit topology structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418416A (en) * | 2018-03-19 | 2018-08-17 | 盐城工学院 | A kind of cooperative control method of Partial Power processing boosting unit and gird-connected inverter |
| CN109565245A (en) * | 2016-08-12 | 2019-04-02 | Abb瑞士股份有限公司 | Deteriorate the recovery of photovoltaic panel |
| CN110120679A (en) * | 2019-05-24 | 2019-08-13 | 江苏辉伦太阳能科技有限公司 | A kind of family coupled with photovoltaic DC-to-AC converter DC side photovoltaic energy storage converter |
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| US20030201674A1 (en) * | 2000-07-28 | 2003-10-30 | International Power System, Inc. | DC to DC converter and power management system |
| CN203734364U (en) * | 2014-02-14 | 2014-07-23 | 阳光电源（上海）有限公司 | Light storage mixing system |
| CN104319798A (en) * | 2014-11-17 | 2015-01-28 | 阳光电源股份有限公司 | Bidirectional DCDC converter and optical storage system |
| CN204333971U (en) * | 2014-12-15 | 2015-05-13 | 深圳太研能源科技有限公司 | A kind of energy storage control system |
| CN205070576U (en) * | 2015-10-21 | 2016-03-02 | 上海正泰电源系统有限公司 | Hybrid -type circuit topology structure |
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2015
- 2015-10-21 CN CN201510688315.4A patent/CN105186672A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030201674A1 (en) * | 2000-07-28 | 2003-10-30 | International Power System, Inc. | DC to DC converter and power management system |
| CN203734364U (en) * | 2014-02-14 | 2014-07-23 | 阳光电源（上海）有限公司 | Light storage mixing system |
| CN104319798A (en) * | 2014-11-17 | 2015-01-28 | 阳光电源股份有限公司 | Bidirectional DCDC converter and optical storage system |
| CN204333971U (en) * | 2014-12-15 | 2015-05-13 | 深圳太研能源科技有限公司 | A kind of energy storage control system |
| CN205070576U (en) * | 2015-10-21 | 2016-03-02 | 上海正泰电源系统有限公司 | Hybrid -type circuit topology structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109565245A (en) * | 2016-08-12 | 2019-04-02 | Abb瑞士股份有限公司 | Deteriorate the recovery of photovoltaic panel |
| CN109565245B (en) * | 2016-08-12 | 2021-07-09 | 马里奇控股荷兰有限公司 | Restoration of deteriorated photovoltaic panels |
| CN108418416A (en) * | 2018-03-19 | 2018-08-17 | 盐城工学院 | A kind of cooperative control method of Partial Power processing boosting unit and gird-connected inverter |
| CN110120679A (en) * | 2019-05-24 | 2019-08-13 | 江苏辉伦太阳能科技有限公司 | A kind of family coupled with photovoltaic DC-to-AC converter DC side photovoltaic energy storage converter |
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Application publication date: 20151223 |
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