Current sensorless MPPT method for a PV flyback microinverters using a dual-mode
Current sensorless MPPT method for a PV flyback microinverters using a dual-mode
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DOI：
10.1109/ipec.2014.6869635
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发表时间：
2014-05
期刊：
影响因子：
--
通讯作者：
June-Hee Lee;June-Seok Lee;Kyo-Beum Lee
中科院分区：
文献类型：
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作者：
June-Hee Lee;June-Seok Lee;Kyo-Beum Lee
针对双模光伏模块型交错反激逆变器（ILFI），提出了一种无电流传感器的最大功率点跟踪（MPPT）控制策略。反激逆变器是众多变压器拓扑结构中的一种，由于其简单和低成本而被广泛使用。本文采用的拓扑结构为交错拓扑结构；因此，可以减小变压器的二次纹波电流。反激逆变器通常有三种工作模式：连续导通模式（CCM）、不连续导通模式（DCM）和边界导通模式（BCM）。本文采用双模控制，包括DCM和BCM操作。此外，通过仿真验证了所提出的无电流传感器MPPT控制策略的性能和有效性。
This paper proposes a current sensorless maximum power point tracking (MPPT) control strategy for a dual-mode photovoltaic (PV) module-type interleaved flyback inverter (ILFI). A flyback inverter, which is one of many transformer topologies, is generally used because of its simplicity and low cost. The topology used in this paper is the interleaved topology; therefore, the secondary ripple current of the transformer can be reduced. The flyback inverter is typically operated in three modes: continuous conduction mode (CCM), discontinuous conduction mode (DCM) and boundary conduction mode (BCM). This paper uses a dual-mode control that includes both the DCM and BCM operations. In addition, the simulations are conducted to verify the performance and effectiveness of the proposed current sensorless MPPT control strategy.