CN113691006A - 一种智能分配电能的光伏储能逆变器 - Google Patents

一种智能分配电能的光伏储能逆变器 Download PDF

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CN113691006A
CN113691006A CN202110893610.9A CN202110893610A CN113691006A CN 113691006 A CN113691006 A CN 113691006A CN 202110893610 A CN202110893610 A CN 202110893610A CN 113691006 A CN113691006 A CN 113691006A
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energy storage
controller
storage inverter
photovoltaic energy
load
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陈伟寰
王国庆
印超
钱志刚
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Shenzhen Soro Electronics Co ltd
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Shenzhen Soro Electronics 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
    • 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
    • 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
    • H02J13/00006—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H02J13/00026—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
    • 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
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144—Demand-response operation of the power transmission or distribution network
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • 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
    • 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
    • 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
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • 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
    • 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
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本申请涉及一种智能分配电能的光伏储能逆变器，属于光伏储能设备的领域，包括光伏储能逆变器本体，所述光伏储能逆变器本体连接有PV面板和储能电池，光伏储能逆变器本体连接有负载，负载还连接电网，还包括：控制终端，与所述光伏储能逆变器本体通讯，用于获取所述储能电池的剩余电量信息，还与所述负载以及所述电网连接，用于当检测电网到断电且储能电池的剩余电量小于预设值时，按照预设的房间的优先级由低至高的顺序停止光伏储能逆变器本体为一个或多个房间内的负载供电。本申请具有提高电网断电时，储能电池的续航时间，改善电能分配的效果。

Description

一种智能分配电能的光伏储能逆变器
技术领域
本申请涉及光伏储能设备的领域，尤其是涉及一种智能分配电能的光伏储能逆变器。
背景技术
光伏储能逆变器可以将光伏PV面板产生的可变直流电压转换为市电频率交流电，可以反馈回商用输电系统，或是供离网的电网使用，并且配置了储能电池，可以离网工作，切换为电池供电模式为负载供电。
当夜晚时，储能电池电能首先为负载供电，当储能电池电量不足时，电网为负载供电。或者当电网断电时，储能电池为负载供电。
针对上述中的相关技术，发明人认为当电网断电时，家庭内负载均保持断电前的状态进行运转，而储能电池内的电量有限，难以长时间为所有负载续航。
发明内容
为了提高电网断电时，储能电池的续航时间，改善电能分配，本申请提供一种智能分配电能的光伏储能逆变器。
本申请提供的一种智能分配电能的光伏储能逆变器，采用如下的技术方案：
一种智能分配电能的光伏储能逆变器，包括光伏储能逆变器本体，所述光伏储能逆变器本体连接有PV面板和储能电池，光伏储能逆变器本体连接有负载，负载还连接电网，还包括：
控制终端，与所述光伏储能逆变器本体通讯，用于获取所述储能电池的剩余电量信息，还与所述负载以及所述电网连接，用于当检测电网到断电且储能电池的剩余电量小于预设值时，按照预设的房间的优先级由低至高的顺序停止光伏储能逆变器本体为一个或多个房间内的负载供电。
通过采用上述技术方案，当电网断电后，储能电池为负载供电，控制终端根据储能电池的电量按顺序调整负载的供电情况，断开部分的房间内供电后，减缓储能电池的耗电速度，从而使更重要房间内的负载运行时间增长，节约用电。
可选的，所述控制终端包括与光伏储能逆变器本体通讯的控制器，每个所述房间的负载和光伏储能逆变器本体之间均连接有一个开关控制器，控制器与每个所述开关控制器连接。
通过采用上述技术方案，控制器通过逆变器本体通讯获知储能电池的剩余电量，控制器通过控制开关控制器的通断，即实现对当前房间内负载的通断电操作。
可选的，所述预设值包括第一预设值和第二预设值，当控制器检测到储能电池电量下降至第一预设值时，控制器控制一个或多个房间的开关控制器断开；当控制器检测到储能电池电量下降至第二预设值时，控制器控制剩余的一个或多个房间的开关控制器断开。
通过采用上述技术方案，采用阶段性的断电，延长储能电池为重要负载供电的时间。
可选的，所述控制器无线通讯连接有移动终端，用于查看光伏储能逆变器的各项数据及向控制器发送控制指令。
通过采用上述技术方案，便于用户远程控制，并且便于全面、直观地查看光伏储能逆变器的各项数据。
可选的，所述控制器连接有信息发送模块，在停止光伏储能逆变器本体为房间内负载供电前向移动终端发送信息。
通过采用上述技术方案，在断开为房间内负载的供电前提醒用户，便于用户获知储能电池的使用情况，并且根据需要作出操作，控制器根据用户通过移动终端发出的操作指令控制通断电，智能便捷。
可选的，所述控制器连接有电网检测模块，所述电网检测模块包括连接至电网的接触器，所述接触器连接有继电器，所述控制器与所述继电器连接，用于通过继电器的触点开关量获知电网是否断电。
通过采用上述技术方案，采用接触器和继电器来检测电网是否断电，更加安全并且简单 ，便于检查维修。
可选的，所述负载包括电器，所述控制器与每个房间内的电器无线通讯连接。
通过采用上述技术方案，控制器可根据控制指令控制电器打开或关闭，满足用户个性化需求。
可选的，所述负载还包括灯光电路，所述灯光电路也连接有一所述开关控制器，且控制灯光电路的开关控制器与控制器连接。
通过采用上述技术方案，灯光电路可单独控制，便于用户根据需要，使控制器控制灯光电路通断，满足用户个性化需求。
综上所述，本申请包括以下至少一种有益技术效果：
1.当电网断电后，储能电池为负载供电，控制终端根据储能电池的电量按顺序调整负载的供电情况，断开部分的房间内供电后，减缓储能电池的耗电速度，从而使更重要房间内的负载运行时间增长，节约用电；
2.采用阶段性的断电，延长储能电池为重要负载供电的时间；
3.在断开为房间内负载的供电前提醒用户，便于用户获知储能电池的使用情况，并且根据需要作出操作，控制器根据用户通过移动终端发出的操作指令控制通断电，智能便捷。
附图说明
图1是本申请的整体结构示意图。
图2是本申请中控制终端的结构示意图。
图3是体现本申请中控制器与电表连接的结构示意图。
附图标记说明：1、光伏储能逆变器本体；2、PV面板；3、储能电池；4、电网；5、配电箱；51、电表；6、发电机；7、控制终端；71、控制器；72、无线通讯模块；73、开关控制器；74、电网检测模块；741、接触器；742、继电器；75、信息发送模块；8、移动终端；9、负载。
具体实施方式
以下结合附图1-3对本申请作进一步详细说明。
本申请实施例公开一种智能分配电能的光伏储能逆变器。参照图1，光伏储能逆变器包括光伏储能逆变器本体1、PV面板2和储能电池3，PV面板2和储能电池3均与光伏储能逆变器本体1连接，光伏储能逆变器本体1与房屋内的负载9连接。PV面板2将生成的直流电输入至光伏储能逆变器本体1，将PV面板2输入的直流电转换为交流电后供负载9使用，多余的电能储存在储能电池3中。
除了光伏储能逆变器为负载9供电以外，电网4通过一配电箱5连接至家庭中的负载9。配电箱5还连接有发电机6，用于紧急用电。
阳光充足的情况下，PV面板2产生的电能通过光伏储能逆变器本体1后供给负载9，结余的电能首先会存储在储能电池3中，储能电池3充满后电能将输送到国家电网4。储能系统在离网以及没有储能电池3的条件下仍然可以正常运行；没有光照的情况下，储能电池3可以为负载9提供电能，如果储能电池3电量不足，电网4可以同时为负载9和储能电池3提供电能；国家电网4断电的情况下，系统会自动切换到备用模式以保证安全，PV面板2产生的电能和储能电池3为负载9提供电能。
参照图1和图2，光伏储能逆变器还包括控制终端7，控制终端7包括控制器71，控制器71连接有无线通讯模块72，无线通讯模块72与光伏储能逆变器本体1自带有的WiFi通讯模块通讯，获取PV面板2的发电量、负载9功率、储能电池3功率以及剩余电量。
为了便于检测及控制光伏储能逆变器本体1供给至负载9的电能，通向每间房内的负载9均分别连接有一个开关控制器73，远程开关控制器73可选用的型号为ZK-1，光伏储能逆变器本体1通过开关控制器73与负载9连接。开关控制器73可统计光伏储能逆变器为当前房间内供电的用电量，并且可控制通断电。开关控制器73自身具有无线通讯功能，每个开关控制器73均通过无线通讯模块72与控制器71通讯，传输数据。
控制终端7连接有移动终端8，移动终端8可与控制终端7无线通讯，查看各项数据或向控制器71发送控制指令，控制器71还连接有信息发送模块75，控制器71可通过信息发送模块75向移动终端8发送提示信息。为了进一步掌握每个房间内的负载9使用情况，若负载9为智能电器，控制器71可与电器无线通讯，移动终端8可查看每个房间内正在使用中的电器。若电器更换位置后，可通过移动终端8修改电器使用的房间。
控制器71还连接有电网检测模块74，电网检测模块74包括与电网4连接的接触器741，接触器741的常开端点与继电器742触点连接，控制器71与继电器742的常开触点连接。当国家电网4断电后，接触器741常开触点断开，控制器71采集继电器742的常开触点的开关量，当开关量为0时，即电网4断电。
当电网4断电后，备用模式开启。为了节省电能，延长用电时间，控制器71检测储能电池3的剩余电量，并根据剩余电量控制房间内的负载9按序断开。通过移动终端8将各个房间的负载9按优先级由高至低的方向依次排序，例如：厨房、卧室、卫生间、客厅。
当备用模式开启后，储能电池3为所有负载9供电，然后控制器71向移动终端8发送信息，提示用户电网4断电，用户可通过移动终端8远程向控制器71发送指令，选择是否要继续使用储能电池3供电。
当控制器71检测到储能电池3剩余电量到达第一预设值后，控制器71向移动终端8发送信息，提醒用户选择是否断开客厅或卫生间用电。若用户通过移动终端8向控制器71发送关闭指令后，控制器71即控制与客厅内负载9连接的开关控制器73断开；或者用户通过移动终端8查看每个房间内用电电器和用电功率，使控制器71关闭电器。
当控制器71检测到储能电池3剩余电量达到第二预设值时，控制器71向移动终端8发送信息，提醒用户选择是否断开厨房或卧式用电。用户根据需求向控制器71发出指令。若用户长时间未向控制器71发送指令信息，则控制器71强制控制优先级较低的房间的开关控制器73断开，使优先级高的房间持续供电。
负载还包括灯光电路，根据房屋建造时电路设置的规则，家庭中的灯光电路可能与其他电器所连接的电路是分开的，灯光电路也连接有一上述的开关控制器73，且控制灯光电路的开关控制器73与控制器71连接，控制器71可控制灯光电路通断。
参照图3，在配电箱5中设置有用于监测电网4用电的电表51，电表51可选用的型号为DDS102，控制器71与电表51连接。移动终端8可通过控制器71查看电网4用电量。
参照图1和图2，若在电网4断电的情况下，储能电池3内的电量逐渐蓄集且大于第一预设值时，控制器71控制所有开关控制器73闭合，并向移动终端8发送提示信息，使用户选择开启电器。
当控制器71检测到电网4恢复供电时，控制器71控制所有开关控制器73闭合，并向移动终端8发送提示信息，使用户选择开启电器。
本申请实施例一种智能分配电能的光伏储能逆变器的实施原理为：当电网4断电时，光伏储能逆变器切换为备用模式。控制器71通过电网检测模块74获知电网4断电后，控制器71向移动终端8发送信息，提示用户电网4断电。
控制器71根据储能电池3的剩余电量，根据各个房间优先级由低至高的顺序向移动终端8发出断电提醒的信息，用户通过移动终端8向控制器71发送指令，使控制器71关闭与房间内负载9连接的开关控制器73断开，或者使控制器71关闭电器。当储能电池3剩余电量继续减小至第二预设值，若用户长时间未应达，则控制器71强制关闭与房间内负载9相连的开关控制器73。
以上均为本申请的较佳实施例，并非依此限制本申请的保护范围，故：凡依本申请的结构、形状、原理所做的等效变化，均应涵盖于本申请的保护范围之内。

Claims (8)

1.一种智能分配电能的光伏储能逆变器，包括光伏储能逆变器本体（1），所述光伏储能逆变器本体（1）连接有PV面板（2）和储能电池（3），所述光伏储能逆变器本体（1）连接有负载（9），负载（9）还连接电网（4），其特征在于，还包括：
控制终端（7），与所述光伏储能逆变器本体（1）通讯，用于获取所述储能电池（3）的剩余电量信息，还与所述负载（9）以及所述电网（4）连接，用于当检测电网（4）到断电且储能电池（3）的剩余电量小于预设值时，按照预设的房间的优先级由低至高的顺序停止所述光伏储能逆变器本体（1）为一个或多个房间内的负载（9）供电。
2.根据权利要求1所述的一种智能分配电能的光伏储能逆变器，其特征在于：所述控制终端（7）包括与光伏储能逆变器本体（1）通讯的控制器（71），每个所述房间的负载（9）和光伏储能逆变器本体（1）之间均连接有一个开关控制器（73），控制器（71）与每个所述开关控制器（73）连接。
3.根据权利要求2所述的一种智能分配电能的光伏储能逆变器，其特征在于：所述预设值包括第一预设值和第二预设值，当控制器（71）检测到储能电池（3）电量下降至第一预设值时，控制器（71）控制一个或多个房间的开关控制器（73）断开；当控制器（71）检测到储能电池（3）电量下降至第二预设值时，控制器（71）控制剩余的一个或多个房间的开关控制器（73）断开。
4.根据权利要求2所述的一种智能分配电能的光伏储能逆变器，其特征在于：所述控制器（71）无线通讯连接有移动终端（8），用于查看光伏储能逆变器的各项数据及向控制器（71）发送控制指令。
5.根据权利要求4所述的一种智能分配电能的光伏储能逆变器，其特征在于：所述控制器（71）连接有信息发送模块（75），在停止光伏储能逆变器本体（1）为房间内负载（9）供电前向移动终端（8）发送信息。
6.根据权利要求2所述的一种智能分配电能的光伏储能逆变器，其特征在于：所述控制器（71）连接有电网检测模块（7），所述电网检测模块（7）包括连接至电网（4）的接触器（741），所述接触器（741）连接有继电器（742）；所述控制器（71）与所述继电器（742）连接，用于通过继电器（742）的触点开关量获知电网（4）是否断电。
7.根据权利要求2所述的一种智能分配电能的光伏储能逆变器，其特征在于：所述负载（9）包括电器，所述控制器（71）与每个房间内的电器无线通讯连接。
8.根据权利要求7所述的一种智能分配电能的光伏储能逆变器，其特征在于：所述负载（9）还包括灯光电路（10），所述灯光电路（10）也连接有一所述开关控制器（73），且控制灯光电路（10）的开关控制器（73）与控制器（71）连接。
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