Single-Phase High Frequency Inverter Narrow Pulse High-Quality Modulation Method

doi:10.16183/j.cnki.jsjtu.2023.426

Abstract

Abstract:

To analyze the narrow pulse issue of high-frequency single-phase two-level inverter running at high modulation ratio, the effects of modulation ratio, carrier frequency, and dead time on the narrow pulse under sinusoidal pulse width modulation (SPWM) strategy are examined, and the distribution law of the narrow pulse within the modulating wave period is derived. Based on this analysis, a high-quality modulation method without narrow pulses is proposed to eliminate narrow pulses within the modulation cycle of high-frequency inverters. To address the waveform distortion issue at the modulation peak and valley in this method, a three-beat carrier prediction method is designed to further improve the quality of the alternating current (AC) output waveform by modifying the modulation within the narrow pulse area. Finally, a single-phase full bridge inverter experimental platform is built to verify the feasibility and effectiveness of the proposed narrow pulse-free high-quality modulation method.

Key words: narrow pulse, waveform distortion, high-frequency inverter, dead time, single phase

CLC Number:

TM464

ZHANG Guopeng, CHEN Dongan, TAO Haijun, LIU Yonghui, MA Yuan. Single-Phase High Frequency Inverter Narrow Pulse High-Quality Modulation Method[J]. Journal of Shanghai Jiao Tong University, 2025, 59(7): 952-961.

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References 15

[1]	王晓琳, 李紫佳, 李正龙, 等. 超高速低载频比下永磁同步电机无差拍电流控制[J]. 电机与控制学报, 2023, 27(4): 55-63.
	WANG Xiaolin, LI Zijia, LI Zhenglong, et al. Current control of permanent magnet synchronous motors under ultra-high-speed and low load-frequency ratio[J]. Journal of Electric Machines and Control, 2023, 27(4): 55-63.
[2]	周苏, 胡哲, 谢非. 车用质子交换膜燃料电池空气供应系统自适应解耦控制方法研究[J]. 汽车工程, 2020, 42(2): 172-177.
	ZHOU Su, HU Zhe, XIE Fei. Study on adaptive decoupling control algorithm for air supply system of vehicle proton exchange membrane fuel cell[J]. Automotive Engineering, 2020, 42(2): 172-177.
[3]	YUAN X, ZHANG C N, ZHANG S. A novel deadbeat predictive current control scheme for OEW-PMSM drives[J]. IEEE Transactions on Power Electronics, 2019, 34(12): 11990-12000.
[4]	LIU Y Z, OU J, SCHIEFER M, et al. Application of an amorphous core to an ultra-high-speed sleeve-free interior permanent-magnet rotor[J]. IEEE Transactions on Industrial Electronics, 2018, 65(11): 8498-8509.
[5]	GAO Q X, WANG X L. Loss calculation, analysis, and separation method of 550 000 r/min ultrahigh-speed permanent magnet motor[J]. IEEE Transactions on Industrial Electronics, 2022, 70(4): 3471-3481.
[6]	GUAN B, WANG C. A narrow pulse compensation method for neutral-point-clamped three-level converters considering neutral-point balance[C]// 2015 9th International Conference on Power Electronics and ECCE Asia. Seoul, ROK: IEEE, 2015: 2770-2775.
[7]	巫付专, 陈蒙娜, 周元浩. 考虑死区效应单相逆变器开关频率分析[J]. 电力系统保护与控制, 2021, 49(24): 96-104.
	WU Fuzhuan, CHEN Mengna, ZHOU Yuanhao. Consideration of dead zone effect in single-phase inverter switching frequency analysis[J]. Power System Protection and Control, 2021, 49(24): 96-104.
[8]	LIU Z C, WANG P Y. Sawtooth carrier-based PWM methods with common-mode voltage reduction for symmetrical multiphase two-level inverters with odd phase number[J]. IEEE Transactions on Power Electronics, 2020, 36(1): 1171-1183.
[9]	付子义, 董彦杰. 三电平SVPWM窄脉冲抑制算法[J]. 传感器与微系统, 2018, 37(12): 122-124.
	FU Ziyi, DONG Yanjie. Three-level SVPWM narrow pulse suppression algorithm[J]. Transducer and Microsystem Technologies, 2018, 37(12): 122-124.
[10]	李敏裕, 马晓军, 魏曙光. 三电平虚拟空间矢量脉宽调制算法窄脉冲抑制研究[J]. 电工技术学报, 2018, 33(14): 3264-3273.
	LI Minyu, MA Xiaojun, WEI Shuguang. Research on narrow pulse suppression of three-level virtual space vector pulse width modulation algorithm[J]. Transactions of China Electrotechnical Society, 2018, 33(14): 3264-3273.
[11]	高瞻, 李耀华, 葛琼璇, 等. 三电平逆变器改进型同步不连续载波脉宽调制策略研究[J]. 中国电机工程学报, 2020, 40(17): 5620-5636.
	GAO Zhan, LI Yaohua, GE Qiongxuan, et al. Research on improved synchronous discontinuous carrier pulse width modulation strategy for three-level inverters[J]. Proceedings of the CSEE, 2020, 40(17): 5620-5636.
[12]	GAO Z, GE Q, LI Y, et al. A three-level neutral-point-clamped nverter with wide frequency range[J]. IEEE Transactions on Power Electronics, 2021, 36(7): 8517-8538.
[13]	薄保中, 刘卫国, 苏彦民. 三电平逆变器PWM控制窄脉冲补偿技术的研究[J]. 中国电机工程学报, 2005, 25(10): 60-64.
	BO Baozhong, LIU Weiguo, SU Yanmin. Study of compensating technique in PWM control for three-level inverters[J]. Proceedings of the CSEE, 2005, 25(10): 60-64.
[14]	WANG X Y, WANG R T, YUE H, et al. A novel carrier-based PWM without narrow pulses applying to high-frequency link matrix converter[J]. IEEE Access, 2020, 8(2): 157654-157662.
[15]	BRAHIM L B, TADAKUMA S. A novel multilevel carrier-based PWM-control method for GTO inverter in low index modulation region[J]. IEEE Transactions on Industry Applications, 2006, 42(1): 121-127.

窄脉冲区域	Δθ
θ(k)<90°、θ(k+3)≥90°	90°-θ(k+2)
θ(k)<270°、θ(k+3)≥270°	270°-θ(k+2)
其他	0°

参数	取值
U_dc/V	500
f_c/kHz	100
f_r/kHz	1
t_nar/μs	2
t_DB/μs	1