Z-source inverter pulse width modulation: A survey

Bakar, Mohd Shafie; Rahim, N.A.; Ghazali, Kamarul Hawari; Hanafi, A.H.M.

doi:10.1109/inecce.2011.5953898

Cited by 14 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pulse width modulation PWM is an essential technique for controlling inverter switching operating mode to achieve a good utilization of output voltage. Traditional boost PWM control methods used in impedance source inverters are simple boost (SB) control, maximum boost (MB) control, maximum constant boost (MCB), and SV control method [19]- [21]. TSD method of the DC-link capacitor voltage and the output voltage are controlled by regulating the modulation index, 𝑚 𝑎 * .…”

Section: Dc-link Capacitor Voltage-balancing Function With Tsd Pwm Me...mentioning

confidence: 99%

DC-link voltage balancing and control of qZ-source inverter fed induction motor drive

Zar

Tial

Naing

2023

IJECE

View full text Add to dashboard Cite

<span lang="EN-US">Poor performance of the motor drive system is caused when the direct current-link (DC-link) capacitor voltages of the inverter are not sufficiently generated. This is mainly because of the various load torque changes and input voltage fluctuation. The qZ-source inverter operates with a fully shoot-through technique. This technique causes mismatching between the upper and lower DC-link capacitor voltages. Without capacitor voltage-balancing function, the desired DC-link capacitor voltages could not be provided or maintained when there are load and speed changes. A Sawtooth carrier-based simple boost triple-sixty-degree (TSD) pulse width modulation (PWM) technique is used to drive the qZ-source T-type inverter because this technique can give a more significant boost DC-link voltage than a traditional simple boost PWM technique. Proportional integral (PI) controller is applied for the DC-link voltage controller to achieve the fast response and less steady-state error. The simulation model was constructed for a 4 kW, 400 V, 1,400 rpm induction motor (IM) drive system used in rolling mill using MATLAB/Simulink with and without voltage balancing function. As a result, DC-link voltages of the qZ-source T-type inverter fed the induction motor drive system could be controlled using a capacitor voltage-balancing function and the output power of the motor from the simulation result is approximately equal to 4 kW.</span>

show abstract

Section: Dc-link Capacitor Voltage-balancing Function With Tsd Pwm Me...mentioning

confidence: 99%

DC-link voltage balancing and control of qZ-source inverter fed induction motor drive

Zar

Tial

Naing

2023

IJECE

View full text Add to dashboard Cite

show abstract

“…These shoot-through states boost the dc link voltage within the specified switching cycle. With the requirement of a high voltage gain, the proposed modulation scheme is obtained with a boosting factor (B) calculated as [38,39]:…”

Section: Modulation Schemementioning

confidence: 99%

Fault-Tolerant Operation of Bidirectional ZSI-Fed Induction Motor Drive for Vehicular Applications

2022

View full text Add to dashboard Cite

This paper presents an efficient and fast fault-tolerant control scheme for a bidirectional Z-source inverter (BiZSI)-fed induction-motor drive system for vehicular applications. The proposed strategy aims for the fault detection, localization and diagnosis of the proposed system during switch failures in the inverter module. Generally, power–semiconductor switch failures in inverter modules occur due to open- and short-circuit faults. An efficient modulation scheme is proposed and design specifications are thoroughly derived to obtain high voltage gains across the BiZSI network. A suitably fast detection and diagnosis scheme to isolate the faulty leg and resume the normal operation is discussed in this paper. The control scheme is provided such that the faulty leg is isolated and the motor phase is fed from a redundant leg to resume the operation. A feasible localization algorithm based on experimentally derived values and switching vectors is implemented. In addition, a fast fault diagnosis method based on current estimation and motor speed variation is designed and implemented. Moreover, the most important advantages of the proposed strategy include lower hardware requirements and less harmonic distortion in the output currents. Finally, the simulation and experimental results are presented to validate the feasibility of the theoretical analysis. An extensive performance evaluation of the proposed system with fault ride-through capabilities is performed to prove its suitability for vehicular applications. To validate its merits, the proposed strategy is compared with similar fault-tolerant schemes currently used in the industry.

show abstract

“…The characteristic of this modulation strategy, shown in Figure 3; is that the transition time in a switching cycle is the similar to that of the Voltage Source Inverter (VSI), the "Shoot-Through ST" state is divided into six parts and the equivalent switching frequency of the impedance network is six times the switching frequency. Therefore, the volume of the inductors could be considerably reduced [18,19].…”

Section: Description and Modeling Of The Z-source Invertermentioning

confidence: 99%

Z-Source Inverter for Energy Management and Vector Control for Electric Vehicle Based PMSM

Bouradi¹,

Negadi²,

Araria³

et al. 2020

JESA

View full text Add to dashboard Cite

Electric vehicles have gained considerable attention recently due to the ever increasing demand for a viable alternative to the current fossil fuel-dependent modes of transportation. These automobiles are reliant on power electronics to generate the energy required for the motor. Traditional converters, namely the V-source (VS) and C-source (CS), are vulnerable to EMI noise, their main circuits cannot be interchangeable and they are either a boost or a buck converter. Therefore, their output voltage is strictly higher or lower than the input voltage. In an effort to negate these drawbacks, new inverters such as the Z-source were conceptualized. This work aims to study the applicability of the Z-source in the traction chain of an electric vehicle in order to feed a permanent magnet synchronous motor (PMSM). The latter is controlled with field oriented vector control reinforced with a backstepping technique in an attempt to ensure tracking ability and robustness. Energy management is also supported in this article in an effort to optimize the performance of the electric vehicle under different operating conditions. The simulation results show the effectiveness of the proposed system in enhancing the energy management of the vehicle, in addition to its simplicity which can facilitate an eventual implementation using a DSP or a Dspace platform.

show abstract

Z-source inverter pulse width modulation: A survey

Cited by 14 publications

References 9 publications

DC-link voltage balancing and control of qZ-source inverter fed induction motor drive

DC-link voltage balancing and control of qZ-source inverter fed induction motor drive

Fault-Tolerant Operation of Bidirectional ZSI-Fed Induction Motor Drive for Vehicular Applications

Z-Source Inverter for Energy Management and Vector Control for Electric Vehicle Based PMSM

Contact Info

Product

Resources

About