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Real time implementation of sign-sign lms algorithm in single phase SPV grid integrated system

机译:单相SPV网格集成系统中Sign-Sign lms算法的实时实现

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This paper deals with a single stage SPV (Solar Photovoltaic) grid interfaced energy conversion system with sign-sign LMS (Least Mean Square) based control algorithm. The proposed system consists of SPV array, VSI (Voltage Source Inverter), AC grid and nonlinear loads. The single stage SPV grid interfaced system having to retain the capital cost investment, land and maintenance alone with PFC (Power Factor Correction) in comparison of different multi functionalities devices. The sign-sing LMS (Least Mean Square) based algorithm is implemented for elimination of current harmonic to extract the fundamental load current component. The sign-sign LMS algorithm is one of the technique from the family of adaptive covering algorithms. The test results present the performance of proposed system realization under unknown environmental condition. The THD (Total Harmonic Distortion) of grid current is well within the range under nonlinear load as defined by an IEEE 519 standard.
机译:本文研究了一种基于单步SPV(太阳能光伏)网格接口的能量转换系统,该系统具有基于符号LMS(最小均方)的控制算法。拟议的系统由SPV阵列,VSI(电压源逆变器),AC电网和非线性负载组成。单级SPV网格接口系统必须与不同的多功能设备进行比较,仅保留PFC(功率因数校正)的投资,土地和维护成本。实现了基于符号LMS(最小均方)的算法,以消除电流谐波,以提取基本负载电流分量。符号-符号LMS算法是自适应覆盖算法系列中的一种技术。测试结果表明了拟议系统在未知环境条件下的实现性能。电网电流的THD(总谐波失真)完全在IEEE 519标准定义的非线性负载范围内。

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