GRID CONNECTED SYSTEM
    1.
    发明申请
    GRID CONNECTED SYSTEM 审中-公开
    网格连接系统

    公开(公告)号:US20120078433A1

    公开(公告)日:2012-03-29

    申请号:US13376585

    申请日:2010-06-03

    IPC分类号: G06F1/28

    摘要: A power distribution controller 50 comprises an electrical path switch 51 and a determining unit 52. The electrical path switch 51 comprises a first switch SW1 inserted between a solar cell 11 and a heating unit 62, and a second switch SW2 inserted between a commercial power system 20 and the heating unit 62. The determining unit 52 determines electrical paths of the electrical path switch 51, based on whether or not a surplus power is present in an electrical power generated in the solar cell 11. Then, the determining unit 52 controls to turn the second switch SW2 in the absence of the surplus power. The determining unit 52 controls to turn the first switch SW1 in the presence of the surplus power. In this way, when the surplus power is generated in the solar cell 11, the surplus power is used for driving the heating unit 62 of a water heater 60. Therefore, the surplus power of the solar cell 11 is stored as heat energy in a hot-water, which is stored in a hot-water tank 61. Therefore, the grid connected system can keep an increase in the cost of installation as low as possible and can use the surplus power of the solar cell effectively by means other than electric power selling.

    摘要翻译: 电力分配控制器50包括电路开关51和确定单元52.电路开关51包括插入在太阳能电池11和加热单元62之间的第一开关SW1和插入商用电力系统 20和加热单元62.确定单元52基于太阳能电池11中产生的电力中是否存在剩余电力来确定电路开关51的电气路径。然后,确定单元52控制 在没有剩余电力的情况下转动第二开关SW2。 确定单元52控制在存在剩余电力的情况下转动第一开关SW1。 以这种方式,当在太阳能电池11中产生剩余电力时,剩余电力被用于驱动热水器60的加热单元62.因此,太阳能电池11的剩余电力作为热能存储在 热水储存在热水箱61中。因此,电网连接系统可以将安装成本保持在尽可能低的水平,并且可以通过除电以外的方式有效地利用太阳能电池的剩余电力 电力销售。

    POWER DISTRIBUTION SYSTEM
    3.
    发明申请
    POWER DISTRIBUTION SYSTEM 审中-公开
    功率分配系统

    公开(公告)号:US20120299383A1

    公开(公告)日:2012-11-29

    申请号:US13381158

    申请日:2010-06-08

    IPC分类号: H02J4/00

    摘要: A system coordination unit 1 includes a reverse power flow prevention circuit 10. When power output from a fuel cell 6 and/or a secondary cell 7 exceeds power consumed in AC loads and DC loads, the reverse power flow prevention circuit 10 prevents a reverse flow of excess power into a commercial power source 4. The reverse power flow prevention circuit 10 is interposed in an AC main power path 20 between a connection point of a solar cell 5 and the AC main power path 20 and each of a connection point of a fuel cell 6 and the AC main power path 20 and a connection point of a secondary cell 7 and the AC main power path 20. The reverse power flow prevention circuit 10 compares the power output from the fuel cell 6 and/or the secondary cell 7 with the power consumed in the AC loads and the DC loads. Upon determining that the former power is not less than the latter power, the reverse power flow prevention circuit 10 electrically interrupts the AC main power path 20. Consequently, the reverse power flow of the power generated by the fuel cell 6 and/or the secondary cell 7 into the commercial power source 4 is prevented by making use of only one reverse power flow prevention circuit 10. Therefore, in comparison with a case where each distributed power source other than a solar cell 5 is provided with a reverse current flow prevention device, the system can be implemented at a low cost.

    摘要翻译: 系统协调单元1包括反向功率流防止电路10.当从燃料电池6和/或二次电池7输出的功率超过AC负载和DC负载中消耗的功率时,反向电流防止电路10防止逆流 多余的电力进入商用电源4.反向电力防止电路10被插入在太阳能电池5的连接点和AC主电源路径20之间的交流主电源路径20中,并且连接点 燃料电池6和AC主电源路径20以及二次电池7和AC主电源路径20的连接点。反向电流防止电路10比较从燃料电池6和/或二次电池7输出的功率 在交流负载和直流负载中消耗的功率。 在确定前一功率不小于后一功率时,反向功率流防止电路10电中断AC主电源路径20.因此,由燃料电池6和/或次级电源产生的电力的反向功率流 通过仅利用一个反向电流防止电路10来防止电池7进入商用电源4.因此,与太阳能电池5以外的各个分散电源的情况相比,具有逆流防止装置 ,可以以低成本实现系统。