CN116235380A8 - 一种光伏系统、电源系统及控制方法 - Google Patents

一种光伏系统、电源系统及控制方法 Download PDF

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Publication number
CN116235380A8
CN116235380A8 CN202080105557.5A CN202080105557A CN116235380A8 CN 116235380 A8 CN116235380 A8 CN 116235380A8 CN 202080105557 A CN202080105557 A CN 202080105557A CN 116235380 A8 CN116235380 A8 CN 116235380A8
Authority
CN
China
Prior art keywords
photovoltaic system
direct current
inverter
voltage
input end
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
CN202080105557.5A
Other languages
English (en)
Other versions
CN116235380A (zh
Inventor
张彦忠
方宏苗
於波
占金祥
林天散
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
Original Assignee
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 CN116235380A publication Critical patent/CN116235380A/zh
Publication of CN116235380A8 publication Critical patent/CN116235380A8/zh
Pending legal-status Critical Current

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Classifications

    • 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
    • H02J1/08—Three-wire systems; Systems having more than three wires
    • H02J1/082—Plural DC voltage, e.g. DC supply voltage with at least two different DC voltage levels
    • 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
    • H02M1/36—Means for starting or stopping converters
    • 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
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
    • 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
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Protection Of Static Devices (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

本申请公开了一种光伏系统、电源系统及控制方法，第一逆变器的第一输入端连接直流正母线的第二端，第一逆变器的第二输入端连接中性母线的第二端；第二逆变器的第一输入端连接中性母线的第二端，第二逆变器的第二输入端连接直流负母线的第二端；控制器，用于在开机和关机过程中，控制直流正母线对地电压、直流负母线对地电压和中性母线对地电压均小于等于预设电压阈值，以确保人身和设备的安全。该光伏系统在开机、关机以及工作过程中，控制器控制光伏系统中各个设备的起机和关机顺序，保证三条直流母线对地电压均不能超过安规电压的要求，以确保人身和设备的安全。光伏系统在工作过程如果出现过压，需要及时进行保护，以免故障范围扩大。
CN202080105557.5A 2020-12-31 2020-12-31 一种光伏系统、电源系统及控制方法 Pending CN116235380A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/142039 WO2022141372A1 (zh) 2020-12-31 2020-12-31 一种光伏系统、电源系统及控制方法

Publications (2)

Publication Number Publication Date
CN116235380A CN116235380A (zh) 2023-06-06
CN116235380A8 true CN116235380A8 (zh) 2024-05-28

Family

ID=82258877

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080105557.5A Pending CN116235380A (zh) 2020-12-31 2020-12-31 一种光伏系统、电源系统及控制方法

Country Status (5)

Country Link
US (1) US20230344239A1 (zh)
EP (1) EP4262041A4 (zh)
CN (1) CN116235380A (zh)
AU (1) AU2020484083A1 (zh)
WO (1) WO2022141372A1 (zh)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5208374B2 (ja) * 2006-04-18 2013-06-12 シャープ株式会社 系統連系パワーコンディショナおよび系統連系電源システム
CN102035423B (zh) * 2010-11-10 2013-09-25 上海兆能电力电子技术有限公司 三相四线制三电平光伏并网逆变器及其控制方法
US8643986B2 (en) * 2011-10-24 2014-02-04 Renewable Power Conversion, Inc. Bipolar photovoltaic array grounding apparatus and method
CN104218609B (zh) * 2014-09-22 2016-08-24 周细文 基于双极式直流传输的光伏电站系统拓扑结构
CN105406516B (zh) * 2015-12-30 2018-10-02 阳光电源股份有限公司 防pid装置、防pid光伏并网发电系统和防pid方法
CN206099366U (zh) * 2016-09-03 2017-04-12 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 双极型光伏发电系统

Also Published As

Publication number Publication date
EP4262041A1 (en) 2023-10-18
AU2020484083A9 (en) 2024-09-19
CN116235380A (zh) 2023-06-06
WO2022141372A1 (zh) 2022-07-07
EP4262041A4 (en) 2024-03-06
AU2020484083A1 (en) 2023-07-20
US20230344239A1 (en) 2023-10-26

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SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CI02 Correction of invention patent application

Correction item: PCT international application to national stage day

Correct: 2023.03.28

False: 2023.03.24

Number: 23-01

Page: The title page

Volume: 39

Correction item: PCT international application to national stage day

Correct: 2023.03.28

False: 2023.03.24

Number: 23-01

Volume: 39

CI02 Correction of invention patent application