Extended maximum boost control scheme based on single‐phase modulator for three‐phase Z‐source inverter

Sabeur, Nassereddine; Mekhilef, Saad; Masaoud, Ammar

doi:10.1049/iet-pel.2015.0124

Cited by 16 publications

(7 citation statements)

References 30 publications

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“…The stability is then deduced. Formula (10) is integrated into Formula (12) and then made it equal to 0. The equivalent control rate can be obtained as…”

Section: A Sliding Surface Designmentioning

confidence: 99%

“…In practice, it is difficult to find a suitable initial value for the sliding surface. Accordingly, combining (12) and (23) yields the following equation:…”

Section: B Approaching Law Designmentioning

confidence: 99%

“…However, the same cannot be realized under EAL. Combining Formulas (12) and (28) yields the following formula:…”

Section: B Approaching Law Designmentioning

confidence: 99%

“…This strategy was realized by controlling the Z-source inductor current in [11] to stabilize the output voltage of the Z-source network. A modulation strategy with a third harmonic injection reduced the voltage stress of a power device and the current ripple of the Z-source network inductor [12].…”

Section: Introductionmentioning

confidence: 99%

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Sliding-Mode Control With Multipower Approaching Law for DC-Link Voltage of Z-Source Photovoltaic Inverters

et al. 2019

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Z-source photovoltaic inverters feature a unique topology and a special modulation strategy that enables a traditional two-stage system function through a single-stage structure. Therefore, Z-source inverters are expected to gain an extensive application when inputs change significantly. Given the objective of achieving DC-link voltage control based on small-signal model analyses, this study proposes a slidingmode control method with a multipower approaching law (MPAL) for the DC-link control of inverters. This novel approach can solve the slow convergence rate and serious buffeting of the traditional slidingmode control. The proposed approach makes the system state reach the sliding surface rapidly. The inherent buffeting of the sliding-mode control is simultaneously weakened and even eliminated in a few cases. The simulation and experimental analyses prove that the proposed sliding-mode control with an MPAL features significant advantages unlike the traditional sliding-mode control and provides a certain practical value. INDEX TERMS Sliding-mode control, Z-source PV inverter, multipower approaching law, DC-link voltage control.

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“…The stability is then deduced. Formula (10) is integrated into Formula (12) and then made it equal to 0. The equivalent control rate can be obtained as…”

Section: A Sliding Surface Designmentioning

confidence: 99%

“…In practice, it is difficult to find a suitable initial value for the sliding surface. Accordingly, combining (12) and (23) yields the following equation:…”

Section: B Approaching Law Designmentioning

confidence: 99%

“…However, the same cannot be realized under EAL. Combining Formulas (12) and (28) yields the following formula:…”

Section: B Approaching Law Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sliding-Mode Control With Multipower Approaching Law for DC-Link Voltage of Z-Source Photovoltaic Inverters

et al. 2019

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“…Recently, single‐phase cascade multilevel inverters based on impedance‐source network were proposed in literature [23, 24]. These converters possess the merits of both traditional CHBs and Z ‐source topologies.…”

Section: Proposed Fault‐tolerant Impedance‐source Converter With Momentioning

confidence: 99%

Fault‐tolerant multilevel cascaded H‐bridge inverter using impedance‐sourced network

Aleenejad

Ahmadi

2016

IET Power Electronics

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This study proposes a fault-tolerant scheme for an impedance-sourced cascaded H-bridge (CHB) converter that can fully restore the converter operation to the pre-fault conditions without any hardware intervention. The proposed faulttolerant scheme has three key elements: a new quasi-z-source CHB converter, a modified modulation method for the introduced z-source CHB, and a modified implementation of the fundamental phase shift compensation (FPSC) method. In case of a fault on one of the inverter switches, the proposed fault-tolerant scheme enables the z-source CHB to generate balanced line-to-line voltages with the same amplitude as the pre-fault voltages, while evenly distributing an inevitable voltage stress increase over all converter switches. In this study, first a brief review of CHB converters and the FPSC method is provided. Then the proposed fault-tolerant scheme is introduced. Finally, several experimental results from a prototype converter are provided to validate the operation of the proposed strategy.

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An interharmonic dual switching frequency modulation strategy for impedance network inverters

Mohammadi

Moghani

Mattavelli

et al. 2021

Circuit Theory & Apps

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Recently, a novel dual switching frequency modulation (DFM) has been proposed for impedance network inverters (INIs). The proposed approach allows the INIs to be designed optimally in size and efficiency, for motor drive applications. Moreover, DFM provides the possibility of operation with unity modulation index. However, DFM requires a high-frequency ratio between pulse-width modulation (PWM) and sinusoidal PWM (SPWM) switching frequencies. This paper proposes an improved modulation strategy to overcome this issue. The modulation called interharmonic dual frequency modulation (IDFM) utilizes the interharmonic areas of a conventional sinusoidal PWM to implement DFM. The proposed approach gives a low total harmonic distortion (THD) output voltage without increasing the frequency ratio of PWM and SPWM. IDFM provides the possibility of selecting a wide range of frequencies for both switching modulations. The approach is explained theoretically, compared with other switching strategies, and also the simulation and experimental results are used to validate its performance.

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Extended maximum boost control scheme based on single‐phase modulator for three‐phase Z‐source inverter

Cited by 16 publications

References 30 publications

Sliding-Mode Control With Multipower Approaching Law for DC-Link Voltage of Z-Source Photovoltaic Inverters

Sliding-Mode Control With Multipower Approaching Law for DC-Link Voltage of Z-Source Photovoltaic Inverters

Fault‐tolerant multilevel cascaded H‐bridge inverter using impedance‐sourced network

An interharmonic dual switching frequency modulation strategy for impedance network inverters

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