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首页> 外文期刊>Journal of Electrical Systems >A novel space vector pulse with modulation (SVPWM) algorithm with direct computation based on the neutral-point balancing problem in a three- level inverter analyzed using a redundant algorithm
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A novel space vector pulse with modulation (SVPWM) algorithm with direct computation based on the neutral-point balancing problem in a three- level inverter analyzed using a redundant algorithm

机译：基于冗余算法分析的三电平逆变器中点平衡问题的直接计算的新型空间矢量脉冲调制（SVPWM）算法

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摘要

Owing to its high performances in terms of minimization of the harmonics and the switching losses as well as its ability to generate variable amplitude AC voltage for the same DC bus, the SVPWM is still widely used in the control of multi-level inverters. However, the requirement of the linear transformations and the large number of trigonometric functions is an important drawback of this algorithm, which increases its cost in terms of computation time.Consequently, the trade-off between the signal quality and the algorithm simplicity is still appears.In this way, a new technique is proposed to do this, an efficient SVPWM algorithm with feeble computational overhead based on voltage-second balance principle was needed, this technique for its simplicity on the one hand (simplify the calculation and reduce the computation time) on the one hand and on the other hand afford a contribution to the problem of neutral-point voltage balancing in three-level NPC converter in contrary conventional SVPWM algorithm who involves complex mathematics and requires more hardware resources to implement and takes more time for its execution. in this paper a novel space vector pulse with modulation (SVPWM) algorithm with direct computation based on the neutral-point balancing problem in a three- level inverter analyzed using a redundant algorithm is presented ,the proposed control strategies will be examined by simulation and real time implementation using Matlab/Simulink software with real time interface based on Space 1103 board ,the performance of the proposed control technique is demonstrated through simulation and experimental investigation.
机译：由于在最小化谐波和开关损耗以及在同一条直流母线上产生可变幅度交流电压的能力方面，SVPWM仍然具有很高的性能，因此SVPWM仍广泛用于多电平逆变器的控制中。然而，线性变换的需求和大量的三角函数是该算法的一个重要缺点，这增加了其在计算时间上的成本，因此仍然出现了信号质量与算法简单性之间的权衡问题通过这种方式，提出了一种新技术来实现这一目标，因此需要一种基于电压-秒平衡原理的高效，具有微不足道的计算开销的SVPWM算法，该技术一方面简单易用（简化了计算并减少了计算时间） ），另一方面，对三电平NPC转换器中的中点电压平衡问题做出了贡献，相反，传统的SVPWM算法涉及复杂的数学运算，需要更多的硬件资源来实现，并且花费更多时间执行。本文提出了一种基于中性点平衡问题的直接计算的新型空间矢量脉冲调制（SVPWM）算法，该算法采用冗余算法在三电平逆变器中进行了分析，并通过仿真和实际检验了提出的控制策略。使用基于Space 1103板的具有实时接口的Matlab / Simulink软件进行实时控制，通过仿真和实验研究证明了所提出的控制技术的性能。

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