Modelling and analysis of parallel operated inverters
Modelling and analysis of parallel operated inverters
复制标题
并联逆变器的建模与分析
DOI：
10.1109/ccece.2008.4564895
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
E. Nowicki
中科院分区：
文献类型：
--
作者：
N. Benaifa;H. Bierk;B. Ajayi;E. Nowicki
可再生能源正在迅速纳入日益分散的电力公用电网。当连接这些源时，一个一直存在的问题是在连接点处减少谐波失真。本文介绍的是一种很少采用的谐波抑制技术，使用同步移相并联PWM逆变器与均流电抗器的建模和分析[1-4]。本文的一个主要贡献是并联逆变器的等效电路模型，允许任何数量的逆变器并联运行进行分析的准确性，简单性和易用性的介绍。使用这种等效的分析和仿真使用MATLAB/Simulink和PSpice的一个，两个和三个并联移相逆变器使用双边缘不对称RSPWM调制与各种调制指数和载波参考频率比的结果的有效性进行了研究。
Renewable energy sources are quickly becoming incorporated into increasingly distributed electrical utility grids. An ever present issue when interfacing these sources is that of harmonic distortion reduction at the inter-tie point. Presented in this paper is the modeling and analysis of a rarely employed technique for harmonic reduction using synchronized phase shifted parallel PWM inverters with current-sharing reactors [1-4]. A main contribution of this paper is the introduction of parallel inverters equivalent circuit model that permits any number of inverters operated in parallel to be analyzed with accuracy, simplicity and ease. The validity of the results obtained using this equivalent is investigated analytically and simulated using MATLAB/Simulink and PSpice for one, two and three parallel phase-shifted inverters using double-edge asymmetrical RSPWM modulation with various modulation indices and carrier to reference frequency ratios.