CN108063490A - 交直流一体化电源太阳能供电系统 - Google Patents

交直流一体化电源太阳能供电系统 Download PDF

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CN108063490A
CN108063490A CN201711247455.3A CN201711247455A CN108063490A CN 108063490 A CN108063490 A CN 108063490A CN 201711247455 A CN201711247455 A CN 201711247455A CN 108063490 A CN108063490 A CN 108063490A
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power supply
low
voltage
line
supply line
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贺飞
尹萍
周会粉
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TURPAN POWER SUPPLY COMPANY STATE GRID XINJIANG ELECTRIC POWER Co Ltd
State Grid Corp of China SGCC
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TURPAN POWER SUPPLY COMPANY STATE GRID XINJIANG ELECTRIC POWER Co Ltd
State Grid Corp of China SGCC
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Priority to CN201711247455.3A priority Critical patent/CN108063490A/zh
Publication of CN108063490A publication Critical patent/CN108063490A/zh
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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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/266—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving switching on a spare supply
    • H02J13/0017—
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

本申请涉及一种交直流一体化电源太阳能供电系统，包括由若干光伏发电单元，以及直流屏、逆变器组成的辅助供电模块，以及由两变压器组成的主供电电源；两变压器均由其低电压侧引出低压供电线路，所述辅助供电模块将直流电转换为低压交流电后分为两路辅助供电线路，其中一路辅助供电线路与一变压器的低压供电线路并联构成第一供电线路，另一路辅助供电线路与另一变压器的低压供电线路并联构成第二供电线路；在两路辅助供电线路和两低压供电线路上设置有断路器，所述断路器分别由第一、第二控制电路控制闭合与否。本申请节省了站用电量，节省电费开支，减少了资源的浪费，充分利用了地区日照时间长，太阳能资源丰富独特的气象条件。

Description

交直流一体化电源太阳能供电系统
技术领域
本申请涉及一种交直流一体化电源太阳能供电系统。
背景技术
现今众多变电站内在检修、维护时需停机，无法实现全线供电；同时变电站内所有设备的加热、照明、采暖和空调用电也都由变压器处提供，故供电方式对变电站有着至关重要的作用。
站用电源是变电站安全运行的基础，现有技术中，变电站内的交直流一体化系统电源都由所用变压器低压侧供电，其供电方式单一，若遇检修，站内众多耗电量设备部分需要停机。且随着变电站综合化程度的提升，站内耗电量也随之提升。
新疆地区拥有丰富的太阳能资源，变电站太阳能与常规电源应用对比，光能作为清洁能源，具有取之不尽，无污染，无噪声，不易损坏，维护简单等优点。因此，对于新疆地区得天独厚的太阳能资源，可利用太阳能光伏电源为站内交直流一体化电源供电。
发明内容
本申请的目的在于提出一种可安装在起重机机头，从而实现高度变换灵活，且可扩展操作面积的高空作业平台。
本申请是这样实现的：交直流一体化电源太阳能供电系统包括由若干光伏发电单元，以及直流屏、逆变器组成的辅助供电模块，以及由两变压器组成的主供电电源；所述光伏发电单元由若干多晶硅电池组件构成；两变压器均由其低电压侧引出低压供电线路，所述辅助供电模块将直流电转换为低压交流电后分为两路辅助供电线路，其中一路辅助供电线路与一变压器的低压供电线路并联构成第一供电线路，另一路辅助供电线路与另一变压器的低压供电线路并联构成第二供电线路；在两路辅助供电线路和两低压供电线路上设置有断路器，所述断路器分别由第一、第二控制电路控制闭合与否，所述第一、第二控制电路电路相同，其包括光敏采集模块、单片机和电源模块，所述电源模块供电由光伏发电单元供给。
所述第一、第二供电线路为单母线分段接线。
在两路辅助供电线路侧接入微机线路备自投保护装置，微机线路备自投保护装置通过有线或无线网络与远程一体化总监控端联网，微机线路备自投保护装置还同时接入低压供电线路及第一、第二供电线路。
由于实施上述技术方案，本申请通过太阳能电源可为以后变电站的运维检修提供便利，节省了站用电量，节省电费开支，减少了资源的浪费，充分利用了新疆地区日照时间长，太阳能资源丰富独特的气象条件。
附图说明
本申请的具体结构由以下的附图和实施例给出：
图1是本申请的结构示意图。
具体实施方式
本申请不受下述实施例的限制，可根据本申请的技术方案与实际情况来确定具体的实施方式。
如图1所示，交直流一体化电源太阳能供电系统包括由若干光伏发电单元，以及直流屏、逆变器组成的辅助供电模块，以及由两变压器组成的主供电电源；所述光伏发电单元由若干多晶硅电池组件构成；两变压器均由其低电压侧引出低压供电线路，所述辅助供电模块将直流电转换为低压交流电后分为两路辅助供电线路，其中一路辅助供电线路与一变压器的低压供电线路并联构成第一供电线路，另一路辅助供电线路与另一变压器的低压供电线路并联构成第二供电线路；在两路辅助供电线路和两低压供电线路上设置有断路器，所述断路器分别由第一、第二控制电路控制闭合与否，所述第一、第二控制电路电路相同，其包括光敏采集模块、单片机和电源模块，所述电源模块供电由光伏发电单元供给。
所述第一、第二供电线路为单母线分段接线。
直流屏是直流电源操作系统的简称，通用名为智能免维护直流电源屏，其为已有技术，具体结构非本申请发明点，故不做详细描述。
进一步的，在两路辅助供电线路侧接入微机线路备自投保护装置，微机线路备自投保护装置通过有线或无线网络与远程一体化总监控端联网，微机线路备自投保护装置还同时接入低压供电线路及第一、第二供电线路，实时给远程一体化总监控端反馈各线路上参数。微机线路备自投保护装置由CPU模块、继电器模块、交流电源模块、人机对话模块等构成，具有抗干扰性强、稳定可靠、使用方便等优点，为已有技术。
由两台变压器低压侧引出的低压供电线路相当于两个电源进线，引入由辅助供电模块供电的辅助供电线路后，相当于又引入两路电源。第一、第二控制电路分别对应两台所变。白天光能丰富，第一、第二控制电路自动切换，两低压供电线路上的断路器断开，由辅助供电线路向第一、第二供电线路供电；晚上第一、第二控制电路自动切换，两低压供电线路上的断路器闭合，两辅助供电线路上的断路器断开，由低压供电线路向第一、第二供电线路供电。本申请在引入两辅助供电线路后，两台变压器均可灵活切换，供电可靠性高。
以上技术特征构成了本申请的最佳实施例，其具有较强的适应性和最佳实施效果，可根据实际需要增减非必要技术特征，来满足不同情况的需要。

Claims (2)

1.一种交直流一体化电源太阳能供电系统，其特征在于：包括由若干光伏发电单元，以及直流屏、逆变器组成的辅助供电模块，以及由两变压器组成的主供电电源；所述光伏发电单元由若干多晶硅电池组件构成；两变压器均由其低电压侧引出低压供电线路，所述辅助供电模块将直流电转换为低压交流电后分为两路辅助供电线路，其中一路辅助供电线路与一变压器的低压供电线路并联构成第一供电线路，另一路辅助供电线路与另一变压器的低压供电线路并联构成第二供电线路；在两路辅助供电线路和两低压供电线路上设置有断路器，所述断路器分别由第一、第二控制电路控制闭合与否，所述第一、第二控制电路电路相同，其包括光敏采集模块、单片机和电源模块，所述电源模块供电由光伏发电单元供给。
2.根据权利要求1所述的交直流一体化电源太阳能供电系统，其特征在于：在两路辅助供电线路侧接入微机线路备自投保护装置，微机线路备自投保护装置通过有线或无线网络与远程一体化总监控端联网，微机线路备自投保护装置还同时接入低压供电线路及第一、第二供电线路。
CN201711247455.3A 2017-12-01 2017-12-01 交直流一体化电源太阳能供电系统 Pending CN108063490A (zh)

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CN205004828U (zh) * 2015-08-24 2016-01-27 国网上海市电力公司 一种基于光伏储能自动切换的变电站监控系统
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CN113922362A (zh) * 2021-09-24 2022-01-11 国网北京市电力公司 断路器控制系统及方法
CN113922362B (zh) * 2021-09-24 2024-03-15 国网北京市电力公司 断路器控制系统及方法

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Application publication date: 20180522