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Buck-boost converter fed SRM drive for solar PV array based water pumping

机译:BUCK-BOOST转换器供给基于太阳能光伏阵列的水泵的SRM驱动器

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This paper aims at the design of solar photovoltaic (SPV) array fed buck-boost converter based water pumping system utilizing a switched reluctance motor (SRM) drive. The unique approach to control the speed of switched reluctance motor (SRM) drive for water pumping by controlling the DC link voltage of a mid-point converter feeding SRM makes system efficient and reliable. The electronic commutation of the SRM drive at fundamental frequency offers reduced switching losses in mid-point converter and considerably increases the efficiency of proposed system approximately 2-3% over conventional schemes of water pumping systems. Imparting some delay to maximum power point tracking (MPPT) algorithm using selection of proper step size is also introduces intentionally to facilitate the soft starting of SRM drive and control the high starting current of SRM. The buck-boost converter operated in continuous conduction mode (CCM) is not only facilitating the limitless area for incremental conductance (InC)-MPPT algorithm but also provides reduced stress on converter components. The buck-boost converter is the unique DC-DC converter which allowing excellent tracking of PV array maximum power point (MPP) irrespective of temperature and insolation levels. The dynamic and steady state behaviors of the proposed solar PV array fed buck-boost converter employing SRM driven water pumping system are evaluated under the varying insolations using the sim-power system toolboxes of MATLAB/Simulink environment and the prototype has been developed in the laboratory to validate the performance of proposed system.
机译:本文旨在利用开关磁阻电机(SRM)驱动器的太阳能光伏(SPV)阵列供给水泵 - 升压转换器的水泵系统。通过控制中点转换器进料SRM的DC链路电压来控制用于水泵的开关磁阻电机(SRM)驱动器的速度的独特方法使系统有效可靠。 SRM驱动器在基础频率下的电子换向可在中点转换器中提供降低的开关损耗,并且显着提高了所提出的系统的效率大约2-3 %的水泵系统的传统方案。赋予最大功率点跟踪(MPPT)算法的一些延迟,使用适当的步长也有意地介绍了SRM驱动器的软启动并控制SRM的高启动电流。在连续导通模式(CCM)中操作的降压 - 升压转换器不仅便于增量电导(INC)-MPPT算法的无限区域,而且还为转换器组件提供了降低的应力。降压升压转换器是唯一的DC-DC转换器,其允许出色跟踪PV阵列最大功率点(MPP),而不管温度和不呈现水平。采用SRM驱动水泵系统采用SRM驱动水泵系统的所提出的太阳能光伏阵列馈电转换器的动态和稳态行为在使用MATLAB / SIMULINK环境的SIM电源系统工具箱下进行了不同的态度,并在实验室开发了原型验证建议系统的表现。

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