基于自然启发算法的开关角优化三相九电平多电平逆变器动态仿真

Q2 Energy

International Journal of Power Electronics and Drive Systems Pub Date : 2021-03-01 DOI:10.11591/IJPEDS.V12.I1.PP325-333

W. T. Chew, W. Yong, J. S. Ong, J. Leong, T. Sutikno

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引用次数: 2

摘要

本文推荐使用一种受自然启发的优化算法——蚱蜢优化算法（GOA）来优化级联H桥多电平逆变器（CHBMLI）的开关角。基于使用选择性谐波最小化脉宽调制（SHMPWM）技术的概念制定的目标函数的最小值来选择开关角度。在三相9电平CHBMLI上进行的MATLAB/Simulink PSIM动态联合仿真表明，使用GOA导出的开关角控制的CHBMLI能够响应变化的调制指数需求，并合成具有所需基波和最小化所选低阶谐波的AC阶梯输出电压波形。与Newton-Raphson（NR）技术相比，GOA能够在更宽的调制指数范围内找到最佳开关角解决方案。与遗传算法相比，GOA能够以更高的概率找到全局极小值。仿真结果验证了基于SHMPWM概念的GOA在开关角计算中的性能。

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Dynamic simulation of three-phase nine-level multilevel inverter with switching angles optimized using nature-inspired algorithm

This paper recommends the use of grasshopper optimization algorithm (GOA), a nature-inspired optimization algorithm, for optimizing switching-angle applied to cascaded H-bridge multilevel inverter (CHBMLI). Switching angles are selected based on the minimum value of the objective function formulated using the concept of selective harmonic minimization pulse width modulation (SHMPWM) technique. MATLAB/Simulink-PSIM dynamic co-simulation conducted on a 3-phase 9-level CHBMLI shows that the CHBMLI controlled using GOA derived switching-angle is able to respond to varying modulation index demand and synthesize an AC staircase output voltage waveform with the desired fundamental harmonic and minimized selected low-order harmonics. Compared to Newton Raphson (NR) technique, GOA is able to find optimum switching-angle solutions over a wider modulation index range. Compared to Genetic Algorithm (GA), GOA is able to find global minima with higher probability. The simulation results validate the performance of GOA for switching-angle calculation based on the concept of SHMPWM.

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来源期刊

International Journal of Power Electronics and Drive Systems Energy-Energy Engineering and Power Technology

CiteScore

3.50

自引率

0.00%

发文量

期刊介绍： International Journal of Power Electronics and Drive Systems (IJPEDS) is the official publication of the Institute of Advanced Engineering and Science (IAES). The journal is open to submission from scholars and experts in the wide areas of power electronics and electrical drive systems from the global world. The scope of the journal includes all issues in the field of Power Electronics and drive systems. Included are techniques for advanced power semiconductor devices, control in power electronics, low and high power converters (inverters, converters, controlled and uncontrolled rectifiers), Control algorithms and techniques applied to power electronics, electromagnetic and thermal performance of electronic power converters and inverters, power quality and utility applications, renewable energy, electric machines, modelling, simulation, analysis, design and implementations of the application of power circuit components (power semiconductors, inductors, high frequency transformers, capacitors), EMI/EMC considerations, power devices and components, sensors, integration and packaging, applications in motor drives, wind energy systems, solar, battery chargers, UPS and hybrid systems and other applications.