Evaluating the capacity of power and energy balance for cascaded H‐bridge multilevel inverter using different PWM techniques

Gadalla, Abuzaid Saeed; Yan, Xiangwu; Altahir, Sara Yahia; Hasabelrasul, Hashim

doi:10.1049/joe.2017.0624

Cited by 26 publications

(18 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The organization of a single phase H-bridge module is presented in Figure 1. The structure consists of two separate legs based on two switches for each leg [17]. The input dc voltage is fixed and equal to Vdc while the output voltage is named as Vo.…”

Section: Cascaded H-bridge Invertermentioning

confidence: 99%

“…_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 1 Mechatronics Engineering, Iskenderun Technical University,Hatay-31200, TURKEY ORCID ID : 0000-0002-0900-5946 * Corresponding Author: Email: mustafa.inci@iste.edu.tr The scheme of cascaded H-bridge inverter is introduced in Figure 2. In the construction, the outputs of each H-bridge modules are tied in series to create higher voltage levels of cascaded H-bridge inverter [17,20,21]. The value of load voltage is the accumulation of output voltages in each module [22].…”

Section: Cascaded H-bridge Invertermentioning

confidence: 99%

“…In which n are positive odd-numbers. The modulation index (Mi) is equal to Vdc for n-modules [15,17]:…”

Section: Cascaded H-bridge Invertermentioning

confidence: 99%

See 2 more Smart Citations

Performance Evaluation of Multi-carrier PWM Techniques: PD, POD and APOD

İnci

2019

International Journal of Applied Mathematics Electronics and Computers

View full text Add to dashboard Cite

In industrial applications, modulation strategies play a significant role to provide the effective voltage generation at the outputs of inverter structures. Also, the modulation strategies are important to generate output voltages with lower harmonic distortions. For this purpose, there are several modulation techniques to produce stepped voltage waveforms by reducing harmonics for high voltage levels. Therefore, this work introduces the comparative study of multi-carrier based pulse width modulation (PWM) methods used in high power rated inverters. In this regard, phase disposition (PD), phase opposition disposition (POD) and alternative phase opposition disposition (APOD) PWM strategies are tested in five-level cascaded H-bridge inverter. The performance consequences are received for different carrier frequencies, and total harmonic distortions are evaluated for tested methods. The results show that total harmonic distortion in APOD-PWM controlled inverter is less than other methods. In addition, total harmonic distortion values are performed for frequency values, which are from 0.5 kHz to 4 kHz.

show abstract

Section: Cascaded H-bridge Invertermentioning

confidence: 99%

Section: Cascaded H-bridge Invertermentioning

confidence: 99%

See 1 more Smart Citation

Performance Evaluation of Multi-carrier PWM Techniques: PD, POD and APOD

İnci

2019

International Journal of Applied Mathematics Electronics and Computers

View full text Add to dashboard Cite

show abstract

“…Five-level inverters are power electronic converters that play important roles in applications of mechanical-electrical systems, transportation, power quality management, renewable energy conversion system, and motor drives [1][2][3][4]. In the design of five-level inverters, different topologies have been evolved, including the diode-clamped [5][6][7][8][9], flying capacitor [10][11][12][13], cascaded H bridge [14][15][16], and T type topologies [17][18][19][20]. A new single-phase five-level T-type inverter can reduce the harmonic components compared with that of the traditional full-bridge three-level PWM inverter under the same conditions of DC voltage source and switching frequency [18].…”

Section: Introductionmentioning

confidence: 99%

A PWM Scheme for Five-Level H-Bridge T-Type Inverter with Switching Loss Reduction

Quach

Nguyen

2019

Electronics

View full text Add to dashboard Cite

In this paper, a new pulse width modulation (PWM) scheme using an offset function to reduce switching loss in the five-level H-bridge T-type inverter (5L-HBT2I) is proposed. The proposed modulation technique is implemented with a third harmonic offset voltage function. A new control voltage, that is adding the offset voltage into the initial control, is shifted to the top or bottom position of the carrier, simultaneously—where the absolute value of its load current is high or medium in comparison to other phase load currents. Due to reducing the intersection between a control voltage and the carriers, the number of switch commutations of the inverter is reduced. As a result of reducing the number of commutation count with a high current at the non-switching position, the switching losses of the inverter are decreased. Analysis and comparison of switching losses on the two-level and three-level inverters, which are components of 5L-HBT2I are presented. The power loss analysis on the 5L-HBT2I is performed. The proposed technique implements the switching loss reduction strategy based on setting the operation of the two-level inverter in six-step mode. PSIM software is used to clarify the proposed technique. The simulation results show that the total switching losses of the proposed technique in 5L-HBT2I reduce in comparison to the conventional sine PWM technique. A prototype is built to validate the proposed scheme. Simulation and experimental results match the analysis.

show abstract

“…A large range of voltage and power capacity can be achieved based on CHB inverters. However, some drawbacks still exist in CHB inverters, such as the line-frequency transformers and a lack of bidirectional power flow ability [7,8]. Also, a large number of isolated DC As shown in Figure 1, the high-frequency link replaces the line-frequency transformer and diode/PWM rectifiers in conventional CHB inverters.…”

Section: Introductionmentioning

confidence: 99%

A Cascaded Multilevel Inverter Using Only One Battery with High-Frequency Link and Low-Rating-Voltage MOSFETs for Motor Drives in Electric Vehicles

Zhang

Gao

2018

Energies

View full text Add to dashboard Cite

Cascaded H-bridge (CHB) multilevel inverters are widely used in industrial applications, such as medium-voltage conversion and motor drives. However, the DC bus voltage in the electric vehicles is limited and it might not meet the requirements of the inverters for conventional motor drives. This paper presents a solution to drive the conventional motor (3Φ/AC 220 V) with inadequate DC bus voltage (DC 144 V) in an electric vehicle without any extra step-up circuits. The solution consists of a CHB inverter as a motor drive and a high-frequency (HF) transformer to balance the voltage. The multilevel CHB inverter improves the voltage and the current waveforms. High-frequency link (HFL) is used to create several isolated DC sources for the system and it can improve the power density. Besides, it replaces bulky line-transformers in the conventional CHB inverters, and the volume is reduced. Also, the inverter has bidirectional power flow ability, which can improve the efficiency in motor drives. As a result, the reduction of the step-up circuits is achieved and the topology can be used in the electric vehicles that are powered by only one 144 V-battery. The details and the principles of the control algorithm is discussed and an experiment based on a four-level CHB inverter with one DC 30 V power source is carried out to validate the proposed characteristics.

show abstract

Evaluating the capacity of power and energy balance for cascaded H‐bridge multilevel inverter using different PWM techniques

Cited by 26 publications

References 16 publications

Performance Evaluation of Multi-carrier PWM Techniques: PD, POD and APOD

Performance Evaluation of Multi-carrier PWM Techniques: PD, POD and APOD

A PWM Scheme for Five-Level H-Bridge T-Type Inverter with Switching Loss Reduction

A Cascaded Multilevel Inverter Using Only One Battery with High-Frequency Link and Low-Rating-Voltage MOSFETs for Motor Drives in Electric Vehicles

Contact Info

Product

Resources

About