A multi-function grid connected PV system with three level NPC inverter and voltage oriented control
A multi-function grid connected PV system with three level NPC inverter and voltage oriented control
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DOI：
10.1016/j.solener.2011.07.017
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发表时间：
2011-11
期刊：
影响因子：
6.7
通讯作者：
G. Tsengenes;G. Adamidis
中科院分区：
文献类型：
--
作者：
G. Tsengenes;G. Adamidis
本文提出了一种光伏并网发电系统。光伏系统的并网是通过三相三电平中点箝位（NPC）逆变器进行的。为了控制逆变器的电压定向控制（VOC）方法和空间矢量脉宽调制（SVPWM）技术的修改版本已被应用。与建议修改的光伏系统作为并联有源电力滤波器（SAPF），无功功率补偿器，和负载的电流平衡器同时运行。以这种方式，PV系统与常规PV系统相比更有效地运行，并且为电力系统提供辅助服务。所提出的控制方案的有效性，建立通过仿真结果与Matlab/Simulink在电力分配系统的稳态和瞬态响应。
In this paper a grid connected photovoltaic (PV) system is presented. The grid integration of the PV system is carried out via a three phase three level neutral point clamped (NPC) inverter. To control the inverter a modified version of voltage oriented control (VOC) method and the space vector pulse width modulation (SVPWM) technique have been applied. With the proposed modification the PV system operates as a shunt active power filter (SAPF), a reactive power compensator, and a load’s current balancer simultaneously. In this way the PV system operates more efficiently compared to the conventional PV systems and offers ancillary services to electric power system. The effectiveness of the proposed control scheme is established through simulation results with Matlab/Simulink in steady state and transient response of the electric power distribution system.