CN106230347A - 智能家用光伏发电控制系统 - Google Patents

智能家用光伏发电控制系统 Download PDF

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CN106230347A
CN106230347A CN201610590439.3A CN201610590439A CN106230347A CN 106230347 A CN106230347 A CN 106230347A CN 201610590439 A CN201610590439 A CN 201610590439A CN 106230347 A CN106230347 A CN 106230347A
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CN106230347B (zh
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黄亮
吴字强
黄进
董新超
朱阳
董志浩
卢叶
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Wuhan University of Technology WUT
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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
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02J13/0006—
    • H02J3/385—
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • 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
    • 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
    • Y02B10/10—Photovoltaic [PV]
    • 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
    • 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
    • Y04S20/20—End-user application control systems
    • Y04S20/242—Home appliances
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

本发明涉及一种智能家用光伏发电控制系统，运用数字控制技术和互联网技术，监控系统工作状况，传递系统信息，并控制电能的合理有效的使用。系统的能量源有三个分别为：光伏发电能量、电池存储的能量以及从电网获取的能量，智能电管家就能够监控这些能量数据，合理分析出对家庭用户最合适的电能流动，给家庭用户创造最大的经济效益；同时系统可以利用光伏发电量的信息来分析处理，间接了解到光照信息、温度信息等一系列相关信息，这些信息会被智能电管家分析来控制家用智能设备，给用户提供一切便利，让用户享受科技所带的快感。本系统是对普通家庭光伏发电系统的补充，能够帮助家庭用户合理高效的对电能的调度使用，同时将数字控制技术、互联网技术和光伏技术三者融合，在能源互联网的大背景下，具有较高的理论研究及社会实践价值。

Description

智能家用光伏发电控制系统
技术领域
本发明属于能量控制系统，特别是一种智能家用光伏发电控制系统。
背景技术
随着石化能源的大量消耗和其带来的严重的环境问题，使用可持续和更加清洁的能源已经变成了全球性的共识。太阳能作为取之不尽用之不竭而且不会带来任何的环境问题的新能源，越来越受到各个国家的重视和大力发展。虽然我国光伏产业发展较晚，但是在国家的大力倡导下，我国光伏发电技术已经跻身世界第一，因此未来每家每户都可能备一套家用光伏发电系统。
但目前的家用光伏发电系统存在很多问题，传统的光伏发电系统都是孤立运行的，并不能让用户随时随地的了解到系统运行的状况，也不能远程的控制系统，这可能会使事故无法及时处理而造成损失，同时，也是一般系统所无法避免的一个问题，就是系统并不能在合理的时间高效的调度能源的使用，这将会造成对能源极大的浪费，对用户也很不经济。
随着互联网技术的广泛应用，智能设备越来越得到广泛的应用，智能窗帘，智能空调、智能灯不断的走向广大用户的家庭中，如何更好更高效的控制这些设备，让这些设备也能智能的自动运行显然是需要得到解决的问题。
发明内容
本发明的目的是：提供一种智能光伏发电控制系统，以克服现有技术的不足。
为了实现上述目的，本发明所采用的技术方案是：
一种智能家用光伏发电控制系统，包括：光伏组件、MPPT控制器、蓄电池、逆变/充电双向一体化机、双向电表、信息处理设备、智能电管家总控制单元、服务器、手机客户端及路由器：
光伏组件：用于将太阳能转换成电能输出给MPPT控制器；
MPPT控制器：用于跟踪日照辐射强度，将太阳能最大限度的进行光电转换；MPPT控制器的输出与蓄电池两极并联后，与逆变/充电双向一体化机相连，
逆变/充电双向一体化机：用于将直流电逆变成交流电供家用电器使用，多余电力经双向电表售电给电力公司；逆变/充电双向一体化机也可工作在充电状态，在无太阳能且蓄电池亏电的情况下，从电网引电给蓄电池充电；
信息处理设备：用于通过CAN总线与MPPT控制器和逆变/充电双向一体化进行数据交互；
智能电管家总控单元：信息处理设备、智能电管家总控制单元通过WiFi组成局域网，并通过路由器与外网服务器连接，交互数据；
手机客户端：既可以通过WiFi访问局域网，也可直接通过互联网访问外网服务器，交互数据。
本发明有三种能量来源，光伏发电电力、蓄电池电力及电网电力；MPPT控制器与逆变/充电双向一体化机将发电量信息、蓄电池电压信息通过CAN总线发送给信息处理模块，再通过WiFi网络传送给智能电管家总控制单元，智能电管家总控制单元分析处理后再将控制指令通过WiFi传递给信息处理模块，并经CAN总线送达MPPT控制器与与逆变/充电双向一体化机，控制MPPT的输出电压、电流及功率，控制逆变/充电双向一体化机的输出电压、电流及功率，来实现系统中三种能量的分配流动；在用电低谷期将电网中的电量存储到蓄电池中，到用电高峰期将蓄电池的能量释放出来，还可根据阶梯电价，进行能量的调节分配，使电价效益最大化。
MPPT控制器将发电量信息通过CAN总线发送给信息处理模块，再通过WiFi网络传送给智能电管家总控制单元，间接得到光照强度信息；智能电管家总控制单元根据光照强度信息去控制智能窗帘、智能照明、智能空调等系统，自动调节家居环境温度，达到最舒适居住环境；家庭用户也可使用手机客户端通过互联网或者WiFi局域网对MPPT控制器、逆变/充电双向一体化机、智能电管家总控制单元进行手动控制。
本发明采集MPPT控制器和逆变/充电一体化机的工作信息，实现了整套光伏发电的数字化控制；实现了对家庭电能流动的合理高效控制，实现了对家用智能硬件的智能化远程控制。
附图说明
图1为本发明的结构框图。
图2为本发明中逆变/充电双向一体化机的主电路拓扑结构图。
图3为本发明中MPPT控制器的主电路拓扑结构图。
图4为本发明中智能电管家主控单元与信息处理设备通用主控制器的结构框图。
具体实施方式
下面结合附图和实施例对本发明做进一步的详细说明。
本发明为一种基于“互联网+”的智能家用光伏发电控制系统(图1)。
本发明的光伏发电系统包括光伏组件、MPPT控制器、蓄电池、逆变/充电双向一体化机以及双向电表，双向电表用于连接供电电网。
本发明光伏组件由21块光伏电池板7串再3并组成，每块光伏电池板的开路电压为40V，功率为260W。7块光伏电池板串联作为一个支路，3个支路并联组成整套光伏组件。整套光伏组件的输出功率为5460W，开路电压为280V，最大功率点电压约在80％开路电压即224V处。
蓄电池由额定电压2V、20Ah的单片蓄电池串联200片组成，额定输出电压为400V。每单片蓄电池的实际电压为1.8V～2.2V，则蓄电池实际输出总电压为360V～440V。
逆变器与充电器被整合成逆变/充电双向一体化机。即可工作在逆变状态，将直流电逆变为交流电后，给家用电器供电，多余电能经过双向电表与供电电网并网，售电给电网公司；也可以工作在充电状态，将供电电网交流电整流成直流电，通过有源功率因素校正算法，给蓄电池进行智能电流型充电。主电路拓扑结构采用全桥架构(图2)。
本发明MPPT控制器用于跟踪太阳的光照强度，将太阳能最大限度的转化为电能，主电路拓扑结构采用交错并联boost升压架构(图3)。
信息处理设备接收MPPT控制器和逆变/充电双向一体化机的故障信息和电能信息，并将信息通过无线与智能电管家总控制单元形成局域网的方式进行互相传递。
局域网通过路由器实现连接至互联网中的服务器，进行数据的交互。服务器储存来自局域网中的MPPT控制器、逆变/充电双向一体化机中的发电信息，包括电压，电流，功率以及故障信息，并整理归纳为手机的随时访问以及来自手机的控制信号做好准备。
手机客户端可以直接连接到信息处理设备、智能电管家总控制单元通过WiFi组成的局域网中，访问MPPT控制器、逆变/充电双向一体化机中的发电信息；也可以通过外网访问服务器存储的MPPT控制器、逆变/充电双向一体化机的信息，方便用户的查询，随时了解到系统的运行状况；同时用户不管连接到局域网还是互联网访问服务器都可以通过手机对MPPT控制器、逆变/充电双向一体化机、智能电管家总控制单元进行手动控制，对MPPT控制器、逆变/充电双向一体化机的控制可以手动控制系统能量的流动，对智能电管家总控制单元进行手动控制来控制家庭中智能窗帘、智能照明、智能空调等系统。
信息处理设备与智能电管家设备(图4)主板都以STM32芯片为控制核心，作为通用。STM32芯片集成有CAN总线模块，通过CAN总线讯息渠道，接受MPPT设备及逆变充电一体化机发电量信息、蓄电池电压信息，综合阶梯电价不同信息由STM32芯片软件编程总结处理讯息，再反馈控制MPPT设备及逆变充电一体化机以实现对3种不同能源智能的电能流动，给家庭用户创造最大的经济效益；同时STM32主控芯片软件部分通过对综合出的光伏发电信息进行判断，间接得到当前的光照强度与日照情况，而通过STM32芯片中多余GPIO口控制继电器矩阵可实现对家庭用电的一些的智能调整，日照灯的照明供给情况,家居中窗帘的开合情况,室内空调的开关情况以及其他电器的开关；另外，TM32通过串口对ESP8266WiFi模块以及GPRS模块进行控制，通过ESP8266WiFi模块实现信息的WIFI信息联网，手机与网络可通过WiFi联网的手段实现对设备的远程控制。
最后，本发明的实施仅用于说明技术方案而非限制。一切根据本发明的本质进行的修改、等效组合，均应涵盖在本发明的权利要求范围当中。
本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。

Claims (3)

1.一种智能家用光伏发电控制系统，包括：光伏组件、MPPT控制器、蓄电池、逆变/充电双向一体化机、双向电表、信息处理设备、智能电管家总控制单元、服务器、手机客户端及路由器；
光伏组件：用于将太阳能转换成电能输出给MPPT控制器；
MPPT控制器：用于跟踪日照辐射强度，将太阳能最大限度的进行光电转换；MPPT控制器的输出与蓄电池两极并联后，与逆变/充电双向一体化机相连，
逆变/充电双向一体化机：用于将直流电逆变成交流电供家用电器使用，多余电力经双向电表售电给电力公司；逆变/充电双向一体化机也可用于在充电状态，在无太阳能且蓄电池亏电的情况下，从电网引电给蓄电池充电；
信息处理设备：用于通过CAN总线与MPPT控制器和逆变/充电双向一体化机进行数据交互；信息处理设备、智能电管家总控制单元通过WiFi组成局域网，
智能电管家总控制单元：信息处理设备、智能电管家总控单元通过WIFI组成局域网，并通过路由器与外网服务器连接，交互数据；
手机客户端：用于通过WiFi访问局域网，也可用于直接通过互联网访问外网服务器，交互数据。
2.如权利要求1所述的智能家用光伏发电控制系统，其特点在于：系统有三种能量来源，光伏发电电力、蓄电池电力及电网电力；MPPT控制器与逆变/充电双向一体化机将发电量信息、蓄电池电压信息通过CAN总线发送给信息处理模块，再通过WiFi网络传送给智能电管家总控制单元，智能电管家总控制单元分析处理后再将控制指令通过WiFi传递给信息处理模块，并经CAN总线送达MPPT控制器与与逆变/充电双向一体化机，控制MPPT的输出电压、电流及功率，控制逆变/充电双向一体化机的输出电压、电流及功率，实现系统中三种能量的分配流动：在用电低谷期将电网中的电量存储到蓄电池中，到用电高峰期将蓄电池的能量释放出来，还可根据阶梯电价，进行能量的调节分配，使电价效益最大化。
3.如权利要求1所述的智能家用光伏发电控制系统，其特点在于：MPPT控制器将发电量信息通过CAN总线发送给信息处理模块，再通过WiFi网络传送给智能电管家总控制单元，间接得到光照强度信息；智能电管家总控制单元根据光照强度信息去控制智能窗帘、智能照明、智能空调等系统，自动调节家居环境温度，达到最舒适居住环境；家庭用户也可使用手机客户端通过互联网或者WiFi局域网对MPPT控制器、逆变/充电双向一体化机、智能电管家总控制单元进行手动控制。
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