CN114080748A - 变换器的控制方法、变换器及光伏发电系统 - Google Patents
变换器的控制方法、变换器及光伏发电系统 Download PDFInfo
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- 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
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- 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
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- 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
- H02M3/00—Conversion of dc power input into dc power output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
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- 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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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/0077—Plural converter units whose outputs are connected in series
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
- Dc-Dc Converters (AREA)
- Photovoltaic Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
光伏发电系统中的变换器及其控制方法。变换器(20)的输入端连接至少一个光伏组件(10),且输出端连接逆变器(300)。控制方法包括:根据光伏组件(10)的输出功率和电压的PV曲线确定变换器(20)的输出PV曲线;根据输出PV曲线控制变换器(20)的电压输出;其中,输出PV曲线至少包括相连接的模拟限压区间和恒功率区间;模拟限压区间是指区间内任意一点所对应的变换器(20)输出电压与光伏组件(10)的输出电压成比例且比例系数相同;恒功率区间是指区间内任意两点所对应的输出电压不同,且区间内任意两点所对应的输出功率之间的差值小于第一预设阈值。该控制方法能够在实现限压输出的同时适配逆变器(300)已有的MPPT控制策略,避免光伏组串(100)功率掉零的情况发生。
Description
PCT国内申请,说明书已公开。
Claims (21)
- PCT国内申请,权利要求书已公开。
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CN202080005595.3A Active CN114080748B (zh) | 2020-06-18 | 2020-06-18 | 变换器的控制方法、变换器及光伏发电系统 |
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US (1) | US11994893B2 (zh) |
EP (1) | EP3965278A4 (zh) |
JP (1) | JP7308360B2 (zh) |
CN (2) | CN117856321A (zh) |
AU (1) | AU2020454270B2 (zh) |
WO (1) | WO2021253352A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113452074A (zh) * | 2021-06-29 | 2021-09-28 | 华为技术有限公司 | 一种光伏系统及控制方法 |
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US11862981B2 (en) | 2020-06-18 | 2024-01-02 | Huawei Digital Power Technologies Co., Ltd. | Photovoltaic system and control method |
Citations (7)
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JP2014128164A (ja) * | 2012-12-27 | 2014-07-07 | Noritz Corp | パワーコンディショナ及び太陽光発電システム |
CN104022734A (zh) * | 2014-06-24 | 2014-09-03 | 西华大学 | 一种光伏发电控制方法、处理器及系统 |
US20150370278A1 (en) * | 2014-06-20 | 2015-12-24 | Boe Technology Group Co., Ltd. | Maximum Power Point Tracking Method and Device, and Photovoltaic Power Generation System |
CN106941263A (zh) * | 2017-04-24 | 2017-07-11 | 浙江大学 | 一种可以实现分布式mppt的集中式光伏发电系统 |
CN107508463A (zh) * | 2017-08-14 | 2017-12-22 | 华为技术有限公司 | 光伏直流变换器输出限压方法和装置 |
CN109460107A (zh) * | 2017-09-06 | 2019-03-12 | 阳光电源股份有限公司 | 一种光伏组件输出特性调节方法及dc/dc变换器 |
CN111162734A (zh) * | 2018-11-07 | 2020-05-15 | 华为技术有限公司 | 一种光伏组串的电流电压曲线扫描方法、变流器及系统 |
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JP5498388B2 (ja) * | 2007-10-15 | 2014-05-21 | エーエムピーティー, エルエルシー | 高効率太陽光電力のためのシステム |
CN102111087A (zh) * | 2009-11-24 | 2011-06-29 | 杜邦太阳能有限公司 | 智能虚拟低电压光伏模块和使用其的光伏电力系统 |
EP2624094B1 (en) * | 2012-01-31 | 2014-07-23 | ABB Oy | Method and arrangement in connection with photovoltaic power generator composed of series-connected photovoltaic modules |
CN103490650A (zh) * | 2012-06-14 | 2014-01-01 | 江南大学 | 分布式光伏功率优化器以及控制方法 |
US20140077608A1 (en) | 2012-09-18 | 2014-03-20 | Panasonic Corporation | Power generation control device, photovoltaic power generation system and power generation control method |
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2020
- 2020-06-18 AU AU2020454270A patent/AU2020454270B2/en active Active
- 2020-06-18 CN CN202311557671.3A patent/CN117856321A/zh active Pending
- 2020-06-18 JP JP2022520928A patent/JP7308360B2/ja active Active
- 2020-06-18 WO PCT/CN2020/096888 patent/WO2021253352A1/zh unknown
- 2020-06-18 CN CN202080005595.3A patent/CN114080748B/zh active Active
- 2020-06-18 EP EP20937180.6A patent/EP3965278A4/en active Pending
-
2022
- 2022-03-16 US US17/696,596 patent/US11994893B2/en active Active
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JP2014128164A (ja) * | 2012-12-27 | 2014-07-07 | Noritz Corp | パワーコンディショナ及び太陽光発電システム |
US20150370278A1 (en) * | 2014-06-20 | 2015-12-24 | Boe Technology Group Co., Ltd. | Maximum Power Point Tracking Method and Device, and Photovoltaic Power Generation System |
CN104022734A (zh) * | 2014-06-24 | 2014-09-03 | 西华大学 | 一种光伏发电控制方法、处理器及系统 |
CN106941263A (zh) * | 2017-04-24 | 2017-07-11 | 浙江大学 | 一种可以实现分布式mppt的集中式光伏发电系统 |
CN107508463A (zh) * | 2017-08-14 | 2017-12-22 | 华为技术有限公司 | 光伏直流变换器输出限压方法和装置 |
CN109460107A (zh) * | 2017-09-06 | 2019-03-12 | 阳光电源股份有限公司 | 一种光伏组件输出特性调节方法及dc/dc变换器 |
CN111162734A (zh) * | 2018-11-07 | 2020-05-15 | 华为技术有限公司 | 一种光伏组串的电流电压曲线扫描方法、变流器及系统 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113452074A (zh) * | 2021-06-29 | 2021-09-28 | 华为技术有限公司 | 一种光伏系统及控制方法 |
CN113452074B (zh) * | 2021-06-29 | 2024-04-09 | 华为数字能源技术有限公司 | 一种光伏系统及控制方法 |
Also Published As
Publication number | Publication date |
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US20220206522A1 (en) | 2022-06-30 |
JP2022551296A (ja) | 2022-12-08 |
US11994893B2 (en) | 2024-05-28 |
JP7308360B2 (ja) | 2023-07-13 |
AU2020454270A1 (en) | 2022-04-28 |
EP3965278A4 (en) | 2022-10-19 |
WO2021253352A1 (zh) | 2021-12-23 |
AU2020454270B2 (en) | 2023-06-22 |
CN117856321A (zh) | 2024-04-09 |
CN114080748B (zh) | 2023-12-08 |
EP3965278A1 (en) | 2022-03-09 |
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