CN109066979A - 一种基于太阳能发电的电能质量控制系统 - Google Patents

一种基于太阳能发电的电能质量控制系统 Download PDF

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CN109066979A
CN109066979A CN201810939918.0A CN201810939918A CN109066979A CN 109066979 A CN109066979 A CN 109066979A CN 201810939918 A CN201810939918 A CN 201810939918A CN 109066979 A CN109066979 A CN 109066979A
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power
solar
distribution cabinet
quality control
module
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胥峥
王慧
唐华
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State Grid Corp of China SGCC
Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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State Grid Corp of China SGCC
Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/0096—
    • H02J3/383—
    • 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
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation 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
    • 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
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
    • 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
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

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

Abstract

本发明提供了一种基于太阳能发电的电能质量控制系统，所述电能质量控制系统包括太阳能电池方阵、防雷器、直流配电柜、蓄电池组、并网逆变器、交流配电柜和电能质量检测装置，所述电能质量控制系统白天能够实现太阳能并网发电以及电能的质量控制，夜晚或没有太阳光照时仅仅实现电能的质量控制。本发明提供一种基于太阳能发电的电能质量控制系统，能够补偿电网中所需要的无功电流以及各次谐波，有效的减少电网中功率的损耗，加强电网中电能的利用效率。

Description

一种基于太阳能发电的电能质量控制系统
技术领域
本发明属于太阳能技术领域，特别涉及一种基于太阳能发电的电能质量控制系统。
背景技术
太阳能可再生性和环保优势已成为当今世界最具运用前景的新能源之一，而太阳能并网发电是太阳能发电的主要发展趋势之一。太阳能发电装置只能在白天工作，晚上要切离电网，影响了设备利用率，频繁投切时更会对电网稳定造成影响。电能质量调节器和太阳能并网发电技术虽然运用前景广阔，但是均有不足，制约着其发展。
与此同时，随着我国工业化进程的加快，大量的非线性和冲击性负载随之涌现，由这些负载所产生的谐波及无功电流对公共电网的污染也日益严重，传统的无源滤波器越来越不能满足电能质量的要求，因此，电能质量调节器也成为近年来研究的热点。
发明内容
本发明提供一种基于太阳能发电的电能质量控制系统，能够补偿电网中所需要的无功电流以及各次谐波，有效的减少电网中功率的损耗，加强电网中电能的利用效率。
本发明具体为一种基于太阳能发电的电能质量控制系统，所述电能质量控制系统包括太阳能电池方阵、防雷器、直流配电柜、蓄电池组、并网逆变器、交流配电柜和电能质量检测装置，所述太阳能电池方阵经过所述防雷器与所述直流配电柜相连接，所述直流配电柜分别与所述蓄电池组、所述并网逆变器相连接，所述并网逆变器与所述交流配电柜相连接，所述交流配电柜与所述电能质量检测装置相连接；所述电能质量控制系统白天能够实现太阳能并网发电以及电能的质量控制，夜晚或没有太阳光照时仅仅实现电能的质量控制。
所述直流配电柜含有PLC多路接入切除控制装置，将接入的直流电缆进行汇流。
所述并网逆变器，包括逆变单元和控制单元，所述逆变单元包括熔断器、直流滤波器、直流断路器、逆变模块、交流有源滤波器、第一电压检测模块和交流断路器，所述控制单元包括PLC、第二电压检测模块和显示模块；所述熔断器分别与所述直流配电柜、所述直流滤波器相连接，所述直流滤波器经过所述直流断路器与所述逆变模块相连接，所述逆变模块与所述交流有源滤波器、所述第一电压检测模块和所述交流断路器相连接；所述PLC分别与所述逆变单元、所述第二电压检测模块和所述显示模块相连接；所述并网逆变器能够测量直流输入的电压、电流和瞬时功率、交流输出电压、电流、有功功率、无功功率、太阳照度、组件温度和环境温度，同时能够有效防止太阳能电池反充电。
所述交流配电柜为所述并网逆变器提供并网接口，当所述并网逆变器发生故障时，首先断开所述交流配电柜，将来自所述太阳能电池方阵的电能与电网隔离，形成明显的断开点，及时保护所述并网逆变器，提高系统的安全性。
所述电能质量检测装置包括电能数据采集模块、电能数据处理模块、电能数据实时显示模块、电能数据存储模块和通信模块，能够实时、准确的检测电能数据，并能够实现数据的远程传输。
附图说明
图1为本发明一种基于太阳能发电的电能质量控制系统的结构示意图。
具体实施方式
下面结合附图对本发明一种基于太阳能发电的电能质量控制系统的具体实施方式做详细阐述。
如图1所示，本发明的电能质量控制系统包括太阳能电池方阵、防雷器、直流配电柜、蓄电池组、并网逆变器、交流配电柜和电能质量检测装置，所述太阳能电池方阵经过所述防雷器与所述直流配电柜相连接，所述直流配电柜分别与所述蓄电池组、所述并网逆变器相连接，所述并网逆变器与所述交流配电柜相连接，所述交流配电柜与所述电能质量检测装置相连接；所述电能质量控制系统白天能够实现太阳能并网发电以及电能的质量控制，夜晚或没有太阳光照时仅仅实现电能的质量控制。
所述直流配电柜含有PLC多路接入切除控制装置，将接入的直流电缆进行汇流。
所述并网逆变器，包括逆变单元和控制单元，所述逆变单元包括熔断器、直流滤波器、直流断路器、逆变模块、交流有源滤波器、第一电压检测模块和交流断路器，所述控制单元包括PLC、第二电压检测模块和显示模块；所述熔断器分别与所述直流配电柜、所述直流滤波器相连接，所述直流滤波器经过所述直流断路器与所述逆变模块相连接，所述逆变模块与所述交流有源滤波器、所述第一电压检测模块和所述交流断路器相连接；所述PLC分别与所述逆变单元、所述第二电压检测模块和所述显示模块相连接；所述并网逆变器能够测量直流输入的电压、电流和瞬时功率、交流输出电压、电流、有功功率、无功功率、太阳照度、组件温度和环境温度，同时能够有效防止太阳能电池反充电。
所述交流配电柜为所述并网逆变器提供并网接口，当所述并网逆变器发生故障时，首先断开所述交流配电柜，将来自所述太阳能电池方阵的电能与电网隔离，形成明显的断开点，及时保护所述并网逆变器，提高系统的安全性。
所述电能质量检测装置包括电能数据采集模块、电能数据处理模块、电能数据实时显示模块、电能数据存储模块和通信模块，能够实时、准确的检测电能数据，并能够实现数据的远程传输。
最后应该说明的是，结合上述实施例仅说明本发明的技术方案而非对其限制。所属领域的普通技术人员应当理解到，本领域技术人员可以对本发明的具体实施方式进行修改或者等同替换，但这些修改或变更均在申请待批的权利要求保护范围之中。

Claims (3)

1.一种基于太阳能发电的电能质量控制系统，其特征在于，所述电能质量控制系统包括太阳能电池方阵、防雷器、直流配电柜、蓄电池组、并网逆变器、交流配电柜和电能质量检测装置，所述太阳能电池方阵经过所述防雷器与所述直流配电柜相连接，所述直流配电柜分别与所述蓄电池组、所述并网逆变器相连接，所述并网逆变器与所述交流配电柜相连接，所述交流配电柜与所述电能质量检测装置相连接；所述电能质量控制系统白天能够实现太阳能并网发电以及电能的质量控制，夜晚或没有太阳光照时仅仅实现电能的质量控制；所述直流配电柜含有PLC多路接入切除控制装置，将接入的直流电缆进行汇流；所述并网逆变器，包括逆变单元和控制单元，所述逆变单元包括熔断器、直流滤波器、直流断路器、逆变模块、交流有源滤波器、第一电压检测模块和交流断路器，所述控制单元包括PLC、第二电压检测模块和显示模块；所述熔断器分别与所述直流配电柜、所述直流滤波器相连接，所述直流滤波器经过所述直流断路器与所述逆变模块相连接，所述逆变模块与所述交流有源滤波器、所述第一电压检测模块和所述交流断路器相连接；所述PLC分别与所述逆变单元、所述第二电压检测模块和所述显示模块相连接；所述并网逆变器能够测量直流输入的电压、电流和瞬时功率、交流输出电压、电流、有功功率、无功功率、太阳照度、组件温度和环境温度，同时能够有效防止太阳能电池反充电。
2.根据权利要求1所述的一种基于太阳能发电的电能质量控制系统，其特征在于，所述交流配电柜为所述并网逆变器提供并网接口，当所述并网逆变器发生故障时，首先断开所述交流配电柜，将来自所述太阳能电池方阵的电能与电网隔离，形成明显的断开点，及时保护所述并网逆变器，提高系统的安全性。
3.根据权利要求1所述的一种基于太阳能发电的电能质量控制系统，其特征在于，所述电能质量检测装置包括电能数据采集模块、电能数据处理模块、电能数据实时显示模块、电能数据存储模块和通信模块，能够实时、准确的检测电能数据，并能够实现数据的远程传输。
CN201810939918.0A 2018-08-17 2018-08-17 一种基于太阳能发电的电能质量控制系统 Pending CN109066979A (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201789341U (zh) * 2010-07-30 2011-04-06 北京市电力公司 一种智能微电网的监控系统
CN102097964A (zh) * 2011-03-14 2011-06-15 山东鲁冶瑞宝电气自动化有限公司 光伏并网逆变器
CN202443306U (zh) * 2012-01-12 2012-09-19 温州电力局 智能楼宇能效综合监控管理系统
CN102931723A (zh) * 2011-08-09 2013-02-13 何鹏飞 一种电能质量与能耗的监控系统
CN205646842U (zh) * 2016-05-23 2016-10-12 江苏省电力公司常州供电公司 一种10kV分布式光伏发电并网接入装置
CN106532766A (zh) * 2016-10-26 2017-03-22 中国科学院电工研究所 一种分布式光伏发电并网测控装置
CN208923913U (zh) * 2018-08-17 2019-05-31 国网江苏省电力有限公司盐城供电分公司 一种基于太阳能发电的电能质量控制系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201789341U (zh) * 2010-07-30 2011-04-06 北京市电力公司 一种智能微电网的监控系统
CN102097964A (zh) * 2011-03-14 2011-06-15 山东鲁冶瑞宝电气自动化有限公司 光伏并网逆变器
CN102931723A (zh) * 2011-08-09 2013-02-13 何鹏飞 一种电能质量与能耗的监控系统
CN202443306U (zh) * 2012-01-12 2012-09-19 温州电力局 智能楼宇能效综合监控管理系统
CN205646842U (zh) * 2016-05-23 2016-10-12 江苏省电力公司常州供电公司 一种10kV分布式光伏发电并网接入装置
CN106532766A (zh) * 2016-10-26 2017-03-22 中国科学院电工研究所 一种分布式光伏发电并网测控装置
CN208923913U (zh) * 2018-08-17 2019-05-31 国网江苏省电力有限公司盐城供电分公司 一种基于太阳能发电的电能质量控制系统

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