Accuracy Analysis of the Zero-Order Hold Model for Digital Pulsewidth Modulation

被引：0

作者：

Ma, Junpeng ^{[1
]}

Wang, Xiongfei ^{[2
]}

Blaabjerg, Frede ^{[2
]}

Harnefors, Lennart ^{[3
]}

Song, Wensheng ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Sch Elect Engn, Chengdu, Sichuan, Peoples R China

[2] Aalborg Univ, Dept Energy Technol, Aalborg, Denmark

[3] ABB Corp Res Ctr, Vasteras, Sweden

来源：

2017 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2017年

关键词：

Compensation method; model accuracy; digital pulse width modulator; ZOH; stability analysis; GRID-CONNECTED INVERTER; CARRIER-BASED PWM; DOMAIN ANALYSIS; POWER FILTERS; VOLTAGE; CONVERTERS; DESIGN;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper examines the accuracy of the zero-order hold (ZOH) model of the digital pulsewidth modulator (DPWM). The influence of the computational delay on the precision of this equivalent DPWM model is discussed in detail. A compensation method is proposed to compensate the deviation of this DPWM model for accurately calculating the stability region with different computational delay and duty-cycle update modes. Simulation and experimental tests are executed to verify the correctness of theoretical analysis.

引用

页码：5767 / 5774

页数：8

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