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首页> 外文会议>2015 IEEE IAS Joint Industrial and Commercial Power Systems/ Petroleum and Chemical Industry Conference >Buck-boost converter fed SRM drive for solar PV array based water pumping
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Buck-boost converter fed SRM drive for solar PV array based water pumping

机译：降压-升压转换器馈电SRM驱动器，用于基于太阳能光伏阵列的抽水

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摘要

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）驱动器设计基于太阳能光伏（SPV）阵列馈电降压-升压转换器的水泵系统。通过控制向SRM馈电的中点转换器的直流母线电压来控制抽水用开关磁阻电机（SRM）驱动器速度的独特方法使系统高效可靠。 SRM驱动器在基频处的电子换向可降低中点转换器的开关损耗，并且与传统的抽水系统相比，可将提议的系统的效率提高大约2-3％。也有意引入了通过选择适当的步长为最大功率点跟踪（MPPT）算法带来一些延迟的问题，以促进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）下工作的降压-升压转换器不仅有利于无限面积增加电导（InC）-MPPT算法，而且还减轻了转换器组件的应力。降压-升压转换器是独特的DC-DC转换器，无论温度和日照级别如何，都可以出色地跟踪PV阵列的最大功率点（MPP）。使用MATLAB / Simulink环境的sim-power系统工具箱，在日照变化的情况下评估了采用SRM驱动水泵系统的拟议太阳能光伏阵列馈电降压-升压转换器的动态和稳态行为，并在实验室中开发了原型验证拟议系统的性能。

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