WO2016008093A1 - 一种mppt集中模式退出、切换方法及其相关应用 - Google Patents
一种mppt集中模式退出、切换方法及其相关应用 Download PDFInfo
- Publication number
- WO2016008093A1 WO2016008093A1 PCT/CN2014/082225 CN2014082225W WO2016008093A1 WO 2016008093 A1 WO2016008093 A1 WO 2016008093A1 CN 2014082225 W CN2014082225 W CN 2014082225W WO 2016008093 A1 WO2016008093 A1 WO 2016008093A1
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- WIPO (PCT)
- Prior art keywords
- photovoltaic
- inverter
- maximum power
- chopper circuit
- power point
- Prior art date
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
- G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
- H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
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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
Definitions
- the present invention relates to the field of photovoltaic power generation technology, and more particularly to an MPPT centralized mode exit, switching method and related applications.
- a photovoltaic inverter is an energy conversion device in a photovoltaic power generation system for converting direct current generated by a photovoltaic cell into alternating current and then sent to the power grid.
- the topology of most small and medium power photovoltaic inverters is shown in Figure 1. It includes an inverter circuit and multiple parallel DC chopper circuits. The multi-channel photovoltaic cells are connected to the DC through the multi-channel DC chopper circuit. On the bus, the inverter circuit is used for output.
- the inverter control system will control several DC chopper circuits with lower voltage transformation to stop working, and the photovoltaic cells connected to these DC chopper circuits are directly connected in parallel to the DC bus.
- the inverter control system tracks the photovoltaic module by adjusting the DC bus voltage (the photovoltaic module is specially made of the above-mentioned DC chopper circuit that is stopped by directly stopping to connect to the photovoltaic cell on the DC bus)
- the maximum power point to improve the overall photoelectric conversion efficiency of the photovoltaic module. This condition is defined as the MPPT of the PV inverter (Maximum Power).
- the maximum power point of each photovoltaic cell in the photovoltaic module may deviate from the maximum power point of the photovoltaic module as a whole, resulting in a decrease in the MPPT efficiency of the photovoltaic inverter, thereby failing to achieve high overall conversion efficiency and High MPPT efficiency.
- the present invention provides an MPPT centralized mode exit, switching method, and related applications to achieve high conversion efficiency and high MPPT efficiency of a photovoltaic inverter.
- a maximum power point tracking MPPT centralized mode exit method the photovoltaic inverter comprising a multi-channel DC chopper circuit and an inverter circuit, wherein the inverter circuit is connected to the multi-channel DC chopper circuit on a DC bus Parallel output side, characterized in that the method comprises:
- each of the photovoltaic cells in the photovoltaic module is separately subjected to MPPT control to obtain a maximum power point of each of the photovoltaic cells, wherein the photovoltaic component is operated by stopping DC a chopper circuit directly connected in parallel to the photovoltaic cell of the DC bus; Determining, according to the type of the multi-channel DC chopper circuit, a standard value in a maximum power point of each of the photovoltaic cells;
- the method further includes: determining the Whether the DC bus voltage meets the inverter requirement, and when the DC bus voltage does not meet the inverter requirement, exit the MPPT centralized mode.
- the determining a standard value in a maximum power point of each of the photovoltaic cells includes: determining a maximum power point of each of the photovoltaic cells The maximum value in .
- the determining a standard value in a maximum power point of each of the photovoltaic cells includes: determining a maximum power point of each of the photovoltaic cells The minimum value in .
- An MPPT centralized mode switching method is applied to a photovoltaic inverter, the photovoltaic inverter comprises a multi-channel DC chopper circuit and an inverter circuit, and the inverter circuit is connected to the multi-channel DC chopper circuit in a DC bus
- the method includes an MPPT centralized mode entry method and any of the above MPPT centralized mode exit methods; wherein the MPPT centralized mode entry method includes:
- the method further includes: determining that the DC bus voltage meets the inverter requirement.
- An MPPT centralized mode exit device is applied to a photovoltaic inverter, the photovoltaic inverter includes a multi-channel DC chopper circuit and an inverter circuit, and the inverter circuit is connected to the multi-channel DC chopper circuit in a DC On the parallel output side of the bus, the device comprises:
- a maximum power point determining unit configured to: when the photovoltaic inverter is in an MPPT centralized mode, Each of the photovoltaic cells in the photovoltaic module is separately subjected to MPPT control to obtain a maximum power point of each of the photovoltaic cells, wherein the photovoltaic module is directly connected in parallel to the photovoltaic cell on the DC bus by a DC chopper circuit that stops working.
- a standard value determining unit connected to the maximum power point determining unit, configured to determine a standard value in a maximum power point of each of the photovoltaic cells according to a type of the multiple DC chopper circuit; and a circuit recovery unit connected to the value determining unit, configured to determine whether a voltage difference between the remaining maximum power point and the standard value exceeds an allowable pressure difference, and restore a connection of several photovoltaic cells whose operating voltage difference exceeds the allowable pressure difference DC chopper circuit.
- the MPPT centralized mode exiting device further includes: a bus voltage determining unit connected to the maximum power point determining unit, configured to determine whether the DC bus voltage satisfies an inverter requirement, when the DC bus voltage is not When the inverter requirement is met, the MPPT centralized mode is exited.
- a bus voltage determining unit connected to the maximum power point determining unit, configured to determine whether the DC bus voltage satisfies an inverter requirement, when the DC bus voltage is not When the inverter requirement is met, the MPPT centralized mode is exited.
- An inverter control system is applied to a photovoltaic inverter, the photovoltaic inverter includes a multi-channel DC chopper circuit and an inverter circuit, and the inverter circuit is connected to the multi-channel DC chopper circuit in a DC
- the control system is configured to perform MPPT control on each of the photovoltaic cells in the photovoltaic module when the photovoltaic inverter is in the MPPT centralized mode, and obtain the maximum power of each of the photovoltaic cells.
- the photovoltaic module is composed of a photovoltaic cell directly connected in parallel on the DC bus by a DC chopper circuit that stops working; determining, according to the type of the multi-channel DC chopper circuit, each of the photovoltaic cells a standard value in the maximum power point; determining whether the voltage difference between the remaining maximum power point and the standard value exceeds the allowable pressure difference, and recovering the DC voltage connected to the several photovoltaic cells whose operating voltage difference exceeds the allowable pressure difference The control system of the wave circuit.
- a photovoltaic inverter includes a multi-channel DC chopper circuit and an inverter circuit, wherein the inverter circuit is connected to a parallel output side of the multi-channel DC chopper circuit on a DC bus, and the PV inverter further Including the above inverter control system.
- the present invention obtains the maximum power point of each of the photovoltaic cells by performing MPPT control on each of the photovoltaic cells in the photovoltaic module, and then according to the type of the DC chopper circuit.
- the invention can ensure that at least one DC chopper circuit with low conversion efficiency does not work under the premise of improving the MPPT efficiency of the photovoltaic inverter, thereby achieving The high efficiency conversion efficiency and high MPPT efficiency of the PV inverter are taken into consideration.
- FIG. 1 is a schematic structural view of a photovoltaic inverter disclosed in the prior art
- FIG. 2 is a flowchart of a method for exiting an MPPT centralized mode according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a dual input single-output photovoltaic inverter disclosed in the prior art; a photovoltaic cell voltage-power characteristic curve;
- FIG. 5 is a flowchart of a method for entering an MPPT centralized mode according to Embodiment 3 of the present invention
- FIG. 6 is a schematic structural diagram of an MPPT centralized mode exit device according to Embodiment 4 of the present invention. detailed description
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- Embodiment 1 of the present invention discloses an MPPT (Maximum Power Point Tracking) centralized mode exit method applied to a photovoltaic inverter, so as to achieve high conversion efficiency and high efficiency of the photovoltaic inverter. MPPT efficiency.
- the photovoltaic inverter includes a multi-channel DC chopper circuit and an inverter circuit, and the inverter circuit is connected to the parallel output side of the multi-channel DC chopper circuit on the DC bus; see FIG. 2, Methods include:
- Step 101 Determine whether the photovoltaic inverter is in the MPPT centralized mode, when the photovoltaic inverter is in the MPPT centralized mode, proceed to step 102, otherwise perform step 101 again;
- Step 102 Perform MPPT control on each of the photovoltaic cells in the photovoltaic module to obtain a maximum power point of each of the photovoltaic cells, wherein the photovoltaic component is driven by a DC that stops working.
- the wave circuit is directly connected in parallel to the photovoltaic cell of the DC bus;
- Step 103 Determine, according to the type of the multiple DC chopper circuit, a standard value in a maximum power point of each of the photovoltaic cells;
- the standard value is the maximum value of the maximum power point of each photovoltaic cell obtained in step 102; when the DC chopper circuit is When the step-down chopper circuit is used, the standard value is the minimum value of the maximum power point of each photovoltaic cell obtained in step 102;
- Step 104 Determine whether the voltage difference between the remaining maximum power point and the standard value exceeds the allowable pressure difference. When the voltage difference exceeds the allowable pressure difference, proceed to step 105, and vice versa, return to step 102; DC chopper circuit .
- the dual input single output photovoltaic inverter shown in FIG. 3 comprises two DC chopper circuits and one inverter circuit, and the inverter circuit is connected to the two DC chopper circuits in DC Parallel output side on the busbar; Specifically, when the photovoltaic cell is connected, the first photovoltaic cell PV1 and the second photovoltaic cell PV2 are respectively connected through the first DC chopper circuit DDI and the second DC chopper circuit DD2 Go to the DC bus and use the inverter circuit DA for output.
- the existing inverter control system independently performs MPPT control on the PV1 according to the output voltage of the PV1 (ie, the output power of the PV1 is changed by adjusting the output voltage of the PV1).
- the output voltage of PV1 corresponding to the maximum output power is the maximum power point of the tracked PV1
- the MP2 control is independently performed on the PV2 according to the output voltage of the PV2 (ie, by adjusting the output voltage of the PV2 to make the PV2
- the output power changes accordingly, and the output voltage of PV2 corresponding to the maximum output power is the maximum power point of the tracked PV2).
- the existing inverter control system performs MPPT control on the parallel whole of PV1 and PV2 according to the DC bus voltage (that is, the parallel overall transmission is realized by adjusting the DC bus voltage)
- the output power is changed accordingly, and the output voltage of the parallel whole corresponding to the maximum output power is the maximum power point of the parallel connection.
- the maximum power points of the parallel whole, PV1 and PV2 are equal; Since there is no electric loss caused by DDI and DD2 at this time (the electric loss is the loss caused by the inverter conversion, corresponding to the conversion efficiency of the inverter), the conversion efficiency of the photovoltaic inverter is improved.
- step 102 is performed, that is, After the photovoltaic inverter enters the MPPT centralized mode, MPPT control is performed separately for each of the PV1 and PV2 photovoltaic cells, and the maximum power points of PV1 and PV2 are obtained.
- step 103 is performed to determine a standard value from the maximum power points of PV1 and PV2 according to the types of DDI and DD2. Specifically, when both DDI and DD2 are boost chopper circuits, the standard value determined is PV1 and The maximum value of the maximum power point of PV2; when both DDI and DD2 are step-down chopper circuits, the standard value determined is the minimum of the maximum power points of PV1 and PV2. The selection of the standard value is determined by considering the conversion efficiency of the corresponding DC chopper circuit. Assuming that the maximum power point of PV2 is higher than PV1, then the conversion efficiency of DD2 is inevitably very low when the operation DD2 is resumed, which is not conducive to improvement. The conversion efficiency of the photovoltaic inverter.
- step 104 is performed. If the standard value determined in step 103 is the maximum power point of PV2, whether the difference between the maximum power point of PV1 and the standard value exceeds the allowable differential pressure is exceeded. If the DDI is restored, At this time, the inverter control system will independently perform MPPT control on PV1 according to the output voltage of PV1, thereby effectively avoiding that the maximum power point of each photovoltaic cell in the parallel whole is far away from the maximum power point of the parallel whole, and the photovoltaic is improved. MPPT efficiency of the inverter.
- the present embodiment obtains the maximum power point of each of the photovoltaic cells by performing MPPT control on each of the photovoltaic cells in the photovoltaic module, and then according to the DC
- the type of the wave circuit determines a standard value from the maximum power point; and then resumes running the remaining most wave circuit to increase the photovoltaic conversion efficiency of the photovoltaic cells by increasing the photoelectric conversion efficiency of the photovoltaic cells
- the embodiment can improve the MPPT efficiency of the photovoltaic inverter. It ensures that at least one DC chopper circuit with low conversion efficiency does not work, achieving both high conversion efficiency and high MPPT efficiency of the PV inverter.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the second embodiment of the present invention discloses another MPPT centralized mode exit method applied to a photovoltaic inverter, so as to achieve high conversion efficiency and high MPPT efficiency of the photovoltaic inverter.
- the improvement of the second embodiment is compared with the first embodiment.
- the method further includes: determining whether the DC bus voltage meets the inverter requirement, and determining that the DC bus voltage meets the inverter requirement Go to step 102, otherwise exit the MPPT centralized mode directly; to avoid the photovoltaic inverter operating under the condition that the MPPT centralized mode is not satisfied.
- the determining whether the DC bus voltage meets the inverter requirement may be obtained by determining whether the DC bus voltage is higher than a minimum operating voltage of the inverter circuit; if the DC bus voltage is lower than the minimum operating voltage, Then, it is determined that the DC bus voltage does not meet the inverter requirement, and vice versa.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- Embodiment 3 of the present invention discloses an MPPT centralized mode switching method applied to a photovoltaic inverter to achieve high conversion efficiency and high MPPT efficiency of the photovoltaic inverter, and the method includes an MPPT centralized mode entry method. And any of the above MPPT centralized mode exit methods;
- the MPPT centralized mode entry method includes:
- Step 101 Obtain a maximum power point of each photovoltaic cell of the multi-channel DC chopper circuit connected to the photovoltaic inverter;
- Step 102 Determine a reference value in the maximum power point according to a type of the multiple DC chopper circuit, and interrupt a DC chopper circuit connected to a photovoltaic cell corresponding to the reference value;
- the reference value is the maximum value of the maximum power point of each photovoltaic cell obtained in step 101;
- the DC chopper circuit is step-down In the case of a wave circuit, the reference value is the maximum power of each photovoltaic cell obtained in step 101. The minimum value in the point;
- Step 103 Determine whether the voltage difference between the remaining maximum power point and the reference value does not exceed the allowable pressure difference; when the voltage difference does not exceed the allowable pressure difference, proceed to step 104; otherwise, return to step 101 to repeat; DC chopper circuit.
- the method further includes: (not shown in FIG. 5): determining whether the DC bus voltage meets an inverter requirement, and when the DC bus voltage meets an inverter requirement, proceeding to step 101, To avoid the PV inverter operating under the conditions that do not meet the MPPT centralized mode.
- allowable differential pressure value in the third embodiment may be equal to the allowable differential pressure described in the first embodiment, or may be appropriately adjusted according to the actual working condition of the photovoltaic inverter.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- Embodiment 4 of the present invention discloses an MPPT centralized mode exit device applied to a photovoltaic inverter to achieve high conversion efficiency and high MPPT efficiency of the photovoltaic inverter.
- the photovoltaic inverter comprises a multi-channel DC chopper circuit and an inverter circuit, wherein the inverter circuit is connected to the parallel output side of the multi-channel DC chopper circuit on the DC bus, see FIG. 6, the device Includes:
- the maximum power point determining unit 100 is configured to: when the photovoltaic inverter is in the MPPT centralized mode, each of the photovoltaic modules in the photovoltaic module Performing MPPT control separately to obtain a maximum power point of each of the photovoltaic cells, wherein the photovoltaic component is composed of a photovoltaic cell directly connected in parallel to the DC bus through a DC chopper circuit that stops working;
- the standard value determining unit 200 is connected to the maximum power point determining unit 100 for determining a standard value in the maximum power point of each of the photovoltaic cells according to the type of the multi-channel DC chopper circuit; 300 is connected to the standard value determining unit 200 for determining whether the voltage difference between the remaining maximum power point and the standard value exceeds the allowable pressure difference, and recovering the several photovoltaic cells whose operating voltage difference exceeds the allowable pressure difference Connected DC chopper circuit.
- the device further includes: a bus voltage determining unit 400 connected to the maximum power point determining unit 100, configured to determine whether the DC bus voltage meets an inverter requirement, when the DC bus voltage does not meet an inverter requirement , exit the MPPT centralized mode.
- Embodiment 5 is a diagrammatic representation of Embodiment 5:
- Embodiment 4 of the present invention discloses an inverter control system applied to a photovoltaic inverter to achieve high conversion efficiency and high MPPT efficiency of the photovoltaic inverter.
- the photovoltaic inverter includes a multi-channel DC chopper circuit and an inverter circuit, and the inverter circuit is connected to the parallel output side of the multi-channel DC chopper circuit on the DC bus.
- the inverter control system is configured to perform MPPT control on each of the photovoltaic cells in the photovoltaic module when the photovoltaic inverter is in the MPPT concentration mode, to obtain a maximum power point of each of the photovoltaic cells, wherein
- the photovoltaic module is composed of a photovoltaic cell directly connected in parallel on the DC bus by a DC chopper circuit that stops working; determining a maximum power point of each of the photovoltaic cells according to the type of the multi-channel DC chopper circuit a standard value in the middle; determining whether the voltage difference between the remaining maximum power point and the standard value exceeds the allowable pressure difference, and recovering the DC chopper circuit connected to the photovoltaic cells whose operating voltage difference exceeds the allowable pressure difference Control system.
- the embodiment further discloses a photovoltaic inverter using the inverter control system
- the main circuit of the photovoltaic inverter includes a multi-channel DC chopper circuit and an inverter circuit, and the inverter circuit Connected to the parallel output side of the multi-channel DC chopper circuit on the DC bus.
- the present invention obtains the maximum power point of each of the photovoltaic cells by performing MPPT control on each of the photovoltaic cells in the photovoltaic module, and then from the maximum power point according to the type of the DC chopper circuit.
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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AU2014383916A AU2014383916B2 (en) | 2014-07-15 | 2014-07-15 | Method for exiting or switching maximum power point tracking centralized modes and related applications |
CN201480005701.2A CN105517653B (zh) | 2014-07-15 | 2014-07-15 | 一种mppt集中模式退出、切换方法及其相关应用 |
EP14882792.6A EP2993754B1 (en) | 2014-07-15 | 2014-07-15 | Centralized mppt exiting and switching method and application thereof |
JP2016573783A JP6225388B2 (ja) | 2014-07-15 | 2014-07-15 | Mppt集中モード退出、切り替え方法及びその応用 |
US15/309,980 US10693297B2 (en) | 2014-07-15 | 2014-07-15 | Centralized MPPT exiting and switching method and application thereof |
PCT/CN2014/082225 WO2016008093A1 (zh) | 2014-07-15 | 2014-07-15 | 一种mppt集中模式退出、切换方法及其相关应用 |
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PCT/CN2014/082225 WO2016008093A1 (zh) | 2014-07-15 | 2014-07-15 | 一种mppt集中模式退出、切换方法及其相关应用 |
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US (1) | US10693297B2 (zh) |
EP (1) | EP2993754B1 (zh) |
JP (1) | JP6225388B2 (zh) |
CN (1) | CN105517653B (zh) |
AU (1) | AU2014383916B2 (zh) |
WO (1) | WO2016008093A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105871324A (zh) * | 2016-04-11 | 2016-08-17 | 厦门科华恒盛股份有限公司 | 一种多路输入光伏逆变系统的独立mppt跟踪方法 |
CN106452137A (zh) * | 2016-07-12 | 2017-02-22 | 江苏兆伏爱索新能源有限公司 | 一种提高多路mppt逆变器转换效率的控制方法 |
CN115912882A (zh) * | 2023-01-04 | 2023-04-04 | 华为数字能源技术有限公司 | 光伏逆变器及功率控制方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108111035A (zh) * | 2018-01-31 | 2018-06-01 | 阳光电源股份有限公司 | 一种光伏固态变压器、光伏逆变系统以及双向高压变流器 |
CN109742936B (zh) * | 2019-01-18 | 2021-03-19 | 天津科林电气有限公司 | 一种光伏逆变器mppt重启方法 |
CN113824147B (zh) * | 2021-10-13 | 2024-05-14 | 阳光电源股份有限公司 | 一种mppt控制方法、光伏逆变器和光伏发电系统 |
CN114884119B (zh) * | 2022-04-29 | 2023-04-18 | 帝森克罗德集团有限公司 | 光伏并网逆变器控制系统的线路匹配方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101599721A (zh) * | 2009-07-09 | 2009-12-09 | 哈尔滨工业大学深圳研究生院 | 太阳能发电系统及其控制方法 |
CN102067437A (zh) * | 2008-05-14 | 2011-05-18 | 国家半导体公司 | 在能量产生系统中的集中式与分布式最大功率点追踪间作选择的方法与系统 |
WO2013094839A1 (ko) * | 2011-12-23 | 2013-06-27 | (주)케이디파워 | 멀티인버터 태양광 발전시스템 |
CN103633661A (zh) * | 2012-08-23 | 2014-03-12 | 上海康威特吉能源技术有限公司 | 一种新能源发电系统以及分布式混合最大功率跟踪方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19919766A1 (de) | 1999-04-29 | 2000-11-02 | Sma Regelsysteme Gmbh | Wechselrichter für eine Photovoltaik-Anlage |
WO2005112551A2 (en) * | 2004-05-21 | 2005-12-01 | Hansung Engineering Co. Ltd | Method for compensating for partial shade in photovoltaic power system |
EP2104200B1 (de) | 2008-03-22 | 2019-02-27 | SMA Solar Technology AG | Verfahren zur ansteuerung eines multi-string-wechselrichters für photovoltaikanlagen |
US8139382B2 (en) * | 2008-05-14 | 2012-03-20 | National Semiconductor Corporation | System and method for integrating local maximum power point tracking into an energy generating system having centralized maximum power point tracking |
US9077206B2 (en) | 2008-05-14 | 2015-07-07 | National Semiconductor Corporation | Method and system for activating and deactivating an energy generating system |
JP5530737B2 (ja) * | 2010-02-10 | 2014-06-25 | 田淵電機株式会社 | 太陽光発電システム |
CN102457068A (zh) | 2010-10-21 | 2012-05-16 | 上海复莱信息技术有限公司 | 一种基于分组mppt控制的太阳能光伏并网系统 |
JP2012137830A (ja) | 2010-12-24 | 2012-07-19 | Ntt Facilities Inc | 太陽光発電システム |
CN102237690A (zh) | 2010-12-30 | 2011-11-09 | 保定天威集团有限公司 | 一种提高光伏逆变系统整体效率的方法 |
JP5857193B2 (ja) | 2011-05-17 | 2016-02-10 | パナソニックIpマネジメント株式会社 | 集電箱 |
US9300140B2 (en) * | 2012-06-28 | 2016-03-29 | General Electric Company | System and method for design and optimization of grid connected photovoltaic power plant with multiple photovoltaic module technologies |
US9219363B2 (en) | 2012-09-06 | 2015-12-22 | Eaton Corporation | Photovoltaic system and method employing a number of maximum power point tracking mechanisms |
WO2015059516A1 (en) | 2013-10-21 | 2015-04-30 | Abb Technology Ag | Double-stage inverter apparatus for energy conversion systems and control method thereof |
-
2014
- 2014-07-15 US US15/309,980 patent/US10693297B2/en active Active
- 2014-07-15 JP JP2016573783A patent/JP6225388B2/ja active Active
- 2014-07-15 CN CN201480005701.2A patent/CN105517653B/zh active Active
- 2014-07-15 WO PCT/CN2014/082225 patent/WO2016008093A1/zh active Application Filing
- 2014-07-15 AU AU2014383916A patent/AU2014383916B2/en active Active
- 2014-07-15 EP EP14882792.6A patent/EP2993754B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102067437A (zh) * | 2008-05-14 | 2011-05-18 | 国家半导体公司 | 在能量产生系统中的集中式与分布式最大功率点追踪间作选择的方法与系统 |
CN101599721A (zh) * | 2009-07-09 | 2009-12-09 | 哈尔滨工业大学深圳研究生院 | 太阳能发电系统及其控制方法 |
WO2013094839A1 (ko) * | 2011-12-23 | 2013-06-27 | (주)케이디파워 | 멀티인버터 태양광 발전시스템 |
CN103633661A (zh) * | 2012-08-23 | 2014-03-12 | 上海康威特吉能源技术有限公司 | 一种新能源发电系统以及分布式混合最大功率跟踪方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2993754A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105871324A (zh) * | 2016-04-11 | 2016-08-17 | 厦门科华恒盛股份有限公司 | 一种多路输入光伏逆变系统的独立mppt跟踪方法 |
CN105871324B (zh) * | 2016-04-11 | 2017-12-15 | 厦门科华恒盛股份有限公司 | 一种多路输入光伏逆变系统的独立mppt跟踪方法 |
CN106452137A (zh) * | 2016-07-12 | 2017-02-22 | 江苏兆伏爱索新能源有限公司 | 一种提高多路mppt逆变器转换效率的控制方法 |
CN106452137B (zh) * | 2016-07-12 | 2018-08-07 | 艾思玛新能源技术(江苏)有限公司 | 一种提高多路mppt逆变器转换效率的控制方法 |
CN115912882A (zh) * | 2023-01-04 | 2023-04-04 | 华为数字能源技术有限公司 | 光伏逆变器及功率控制方法 |
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US20170264099A1 (en) | 2017-09-14 |
US10693297B2 (en) | 2020-06-23 |
CN105517653B (zh) | 2018-06-12 |
EP2993754A4 (en) | 2016-11-09 |
AU2014383916B2 (en) | 2017-02-02 |
JP2017527001A (ja) | 2017-09-14 |
AU2014383916A1 (en) | 2016-02-04 |
CN105517653A (zh) | 2016-04-20 |
JP6225388B2 (ja) | 2017-11-08 |
EP2993754B1 (en) | 2018-09-19 |
EP2993754A1 (en) | 2016-03-09 |
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