CN115485968A - 一种光伏发电***、功率控制方法及汇流箱 - Google Patents

一种光伏发电***、功率控制方法及汇流箱 Download PDF

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Publication number
CN115485968A
CN115485968A CN202080031614.XA CN202080031614A CN115485968A CN 115485968 A CN115485968 A CN 115485968A CN 202080031614 A CN202080031614 A CN 202080031614A CN 115485968 A CN115485968 A CN 115485968A
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CN
China
Prior art keywords
combiner box
voltage
output
power
preset voltage
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
CN202080031614.XA
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English (en)
Inventor
于心宇
辛凯
董鹏
高拥兵
张彦忠
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.)
Huawei Digital Power Technologies Co Ltd
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Huawei Digital Power Technologies 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 Huawei Digital Power Technologies Co Ltd filed Critical Huawei Digital Power Technologies Co Ltd
Publication of CN115485968A publication Critical patent/CN115485968A/zh
Pending legal-status Critical Current

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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
    • 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
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H02J1/102—Parallel operation of dc sources being switching converters
    • 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
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

本申请公开了一种光伏发电***、功率控制方法及汇流箱，***包括：逆变器和至少一个汇流箱；汇流箱包括多路直流‑直流DC‑DC电路和一个控制器；汇流箱内的多路DC‑DC电路的输出端并联在一起连接逆变器的输入端；每路DC‑DC电路的输入端连接对应的光伏组串；控制器用于汇流箱的输出电压大于等于第一预设电压小于等于第二预设电压，控制汇流箱输出最大功率；汇流箱的输出电压大于所述第二预设电压，控制汇流箱的输出功率随着输出电压的增大而减小；第二预设电压大于所述第一预设电压；最大功率为汇流箱连接的所有光伏组串的最大功率之和。汇流箱虚拟PV曲线，独立完成输出功率的调节，不依赖逆变器和汇流箱之间的高速通信。

Description

PCT国内申请，说明书已公开。

Claims (14)

  1. PCT国内申请，权利要求书已公开。
CN202080031614.XA 2020-12-22 2020-12-22 一种光伏发电***、功率控制方法及汇流箱 Pending CN115485968A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/138170 WO2022133695A1 (zh) 2020-12-22 2020-12-22 一种光伏发电***、功率控制方法及汇流箱

Publications (1)

Publication Number Publication Date
CN115485968A true CN115485968A (zh) 2022-12-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080031614.XA Pending CN115485968A (zh) 2020-12-22 2020-12-22 一种光伏发电***、功率控制方法及汇流箱

Country Status (4)

Country Link
US (1) US20230336119A1 (zh)
EP (1) EP4250557A4 (zh)
CN (1) CN115485968A (zh)
WO (1) WO2022133695A1 (zh)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001255949A (ja) * 2000-03-13 2001-09-21 Toshiba Corp 太陽光発電インバータ装置
ITVA20080002A1 (it) * 2008-01-10 2009-07-11 St Microelectronics Srl Sistema fotovoltaico a pannelli multicellulari con conversione dc-dc multiplata per gruppi di celle in serie di ciascun pannello e struttura di pannello fotovoltaico
US8576591B2 (en) * 2010-09-30 2013-11-05 Astec International Limited Converters and inverters for photovoltaic power systems
CN102611355B (zh) * 2012-03-13 2015-09-16 特变电工新疆新能源股份有限公司 一种光伏阵列汇流箱
JP5903341B2 (ja) * 2012-06-25 2016-04-13 京セラ株式会社 発電制御装置、太陽光発電システム、および発電制御方法
CN104079001B (zh) * 2014-07-15 2017-08-25 浙江昱能科技有限公司 基于串联型优化器的光伏并网***中对优化器的控制方法
CN205490140U (zh) * 2015-12-31 2016-08-17 北京天诚同创电气有限公司 光伏升压汇流箱和光伏发电***
CN108258718B (zh) * 2016-12-29 2021-01-26 北京天诚同创电气有限公司 逆变器、集散式汇流箱、限功率控制***和方法
CN107154780B (zh) * 2017-06-08 2019-04-09 阳光电源股份有限公司 一种光伏发电***及其功率控制方法与功率优化器

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Publication number Publication date
US20230336119A1 (en) 2023-10-19
WO2022133695A1 (zh) 2022-06-30
EP4250557A1 (en) 2023-09-27
EP4250557A4 (en) 2024-02-07

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