Multicarrier-Based PWM Strategies With Complete Voltage Balance Control for NNPC Inverters

Tan, Longcheng; Wu, Bin; Narimani, Mehdi; Xu, Dewei; Joós, G.

doi:10.1109/tie.2017.2750608

Cited by 40 publications

(11 citation statements)

References 26 publications

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“…In the carrier-based modulations, the NP voltage balance problem can be solved by using zero-sequence voltage injection methods [87,88]. In [89], the theoretical analysis and control of the NP voltage balance were put forward for 5L ANPC based on the PS-PWM algorithm.…”

Section: Dc-link Np Voltage Controlmentioning

confidence: 99%

Hybrid Multilevel Converters: Topologies, Evolutions and Verifications

Zhang

Din

et al. 2019

Energies

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Multilevel converters have good potential in high power and high voltage applications due to their advantages of reduced voltage or current stress on power devices. In recent years, hybrid multilevel converter (HMC) have attracted increasing attention since less equipment is required. In this paper, the topologies and evolutions of HMCs are presented, where five topology derivation ways are given by using basic cells in series-parallel/parallel-series. Some general topologies or structures that are used to generate higher levels are also deducted. Then many existing HMCs can be derived, and new topologies of the HMC might be inspired. The capabilities of neutral point and FC voltage balancing control are investigated. The performance of the selected FC-based HMCs is analyzed. Finally, the verifications of operation principle and control strategies for the derived HMCs are carried out.

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Section: Dc-link Np Voltage Controlmentioning

confidence: 99%

Hybrid Multilevel Converters: Topologies, Evolutions and Verifications

Zhang

Din

et al. 2019

Energies

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“…However, the voltage balancing control for the SMC in [28] and [29] did not discuss the balancing of neutral point (NP) voltage. In [30], a multicarrier-based PWM method was proposed for balancing NP voltage by using zero-sequence injection method. In [31], the theoretical analysis of the NP voltage balancing was put forward for the 5L ANPC.…”

Section: Introductionmentioning

confidence: 99%

Voltage Balancing Control of Hybrid Stacked Multicell Converters Based on Modified Phase-Shifted PWM

Zhang

et al. 2019

IEEE Access

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The hybrid stacked multicell converter (HSMC) is a competitive converter in the lowvoltage high-efficiency applications. Proper modulation and voltage balancing control are important for the operation of the HSMC, which may ensure the HSMC to obtain high-quality output and low power losses. A hybrid phase-shifted PWM (PS-PWM) with the modified reference signal is developed for nine-level HSMC (9L-HSMC), and the neutral point voltage can be naturally balanced in a fundamental cycle. Based on the hybrid PS-PWM, an active voltage balancing control is put forward for the flying capacitor (FC). The voltage balancing of FC is implemented by slightly modifying the reference signals to adjust the duty cycles of the high-frequency switches symmetrically. This method does not need complex calculations, and it can be easily extended to higher level HSMC and other FC-based configurations. The simulations are carried out to validate the merits of low power losses and superior power quality. A downscale experimental platform of a 9L-HSMC is a setup to verify the effectiveness of the proposed control strategy under both the steady state and the transient states. INDEX TERMS Multilevel converter, neutral point (NP) voltage, phase-shifted PWM (PS-PWM), stacked multicell converter (SMC), voltage balancing control.

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“…The multicarrier pulse width modulation (MCPWM) technique are used for generating gate pulses for NPC-inverters. The developed technique reduces the voltage ripple and implementation is easier than other techniques [4]. Direct torque control technique is used for two phase induction motor drive.…”

Section: Introductionmentioning

confidence: 99%

“…The unipolar sinusoidal pulse width modulation technique provides less %THD [16]. MCPWM techniques are used to solve voltage balancing problem under low frequency conditions [17]. Asymmetric multilevel inverter is triggered with various SPWM technique such as phase disposition, phase opposition disposition and alternate phase apposition disposition [18,19].…”

Section: Introductionmentioning

confidence: 99%

Induction Motor Drive with Trinary DC Source Asymmetrical Inverter

Vijayakumar¹,

Prabaharan²

2019

IJRTE

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This paper deals a comparison of MATLAB based simulation of sinusoidal and trapezoidal PWM strategies applied to a trinary DC source nine level inverter fed R -load. The nine-level inverter fed induction motor drive is simulated only for that reference which provides better performance with R-load. Open loop and PI control schemes have also been developed for trinary DC source fed nine level inverter-based Induction motor drive to improve the responses under various sudden load changesat specified reference speed. The corresponding speed, torque and stator voltage are presented. Usual performance indices for transient operation of above drive are also evaluated and presented.

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Multicarrier-Based PWM Strategies With Complete Voltage Balance Control for NNPC Inverters

Cited by 40 publications

References 26 publications

Hybrid Multilevel Converters: Topologies, Evolutions and Verifications

Hybrid Multilevel Converters: Topologies, Evolutions and Verifications

Voltage Balancing Control of Hybrid Stacked Multicell Converters Based on Modified Phase-Shifted PWM

Induction Motor Drive with Trinary DC Source Asymmetrical Inverter

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