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实用新型
CN201846091U 全数字控制三相太阳能光伏并网逆变器 失效 - 权利终止

全数字控制三相太阳能光伏并网逆变器
摘要：
本实用新型公开了一种全数字控制三相太阳能光伏并网逆变器，包括三相桥式逆变单元、控制单元、驱动单元和信号采集单元，三相桥式逆变单元通过信号采集单元与控制单元、驱动单元形成闭环控制系统。其中，三相桥式逆变单元的输入端与太阳能光伏阵列的输出端相连，三相桥式逆变单元的输出端通过三相工频变压器及交流接触器与三相电网连接。本实用新型效率高、可靠性高，并网电流谐波含量小，特别适用于电能质量较差地区的光伏并网发电。
摘要（英）：

The utility model discloses a full numerical control three-phase solar photovoltaic grid-connected inverter, comprising a three-phrase bridge type inverting unit, a control unit, a drive unit and a signal acquisition unit, wherein the three-phrase bridge type inverting unit forms a closed-loop control system together with the control unit and the drive unit through the signal acquisition unit; the input end of the three-phrase bridge type inverting unit is connected with the output end of a solar photovoltaic array; and the output end of the three-phrase bridge type inverting unit is connected with a three-phrase power grid through a three-phrase power-frequency transformer and an alternating-current connector. The full numerical control three-phrase solar photovoltaic grid-connected inverter has high efficiency and reliability, and low harmonic content of grid-connected current, and is particularly applicable to photovoltaic grid-connected power generation in areas with poorer quality of electric energy.

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