Range of the Linear Modulation in Matrix Converters

Zarri, L.; Mengoni, Michele; Tani, A.; Ojo, Joseph Olorunfemi

doi:10.1109/tpel.2013.2274285

Cited by 25 publications

(15 citation statements)

References 31 publications

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“…It is exactly that this limitation leads to lack of load driving ability when the driving system combined with USMC is overloading in the range of approximate rated speed. Nowadays, the method of improving voltage transfer ratio (VTR) can be divided into two categories: topology [6][7][8][9] and modulation [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Research on Linear Output Voltage Transfer Ratio for Ultrasparse Matrix Converter

Xia

Yan

et al. 2016

IEEE Trans. Power Electron.

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Many existing researches of ultra Sparse matrix converter (USMC) show that the maximum linear output voltage transfer ratio (MLO-VTR)is less than 0.866, however, this paper proves that, based on space vector modulation(SVM), MLO-VTR for USMC can break the ultimate value. Firstly, based on the condition that input power factor is 1, the maximum output voltage within one carrier period and the maximum linear output voltage are derived. Further the mathematical equations among MLO-VTR, the output/input frequency ratios and the output voltage initial phase is also derived. After that, by solving the operating limits of the mathematical relationship of the MLO-VTR, we can obtain the maximum value of MLO-VTR under different output/input frequency ratios, which can be more than 0.866. Finally, all of theoretical derivations are verified by experiments.

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Section: Introductionmentioning

confidence: 99%

“…The modulation strategy operating with non-unity input power factor has been proposed [10], which allows increased maximum output voltage. References [11] and [12] discussed two overmodulation strategies based on square wave and trapezoidal wave.…”

Section: Introductionmentioning

confidence: 99%

Research on Linear Output Voltage Transfer Ratio for Ultrasparse Matrix Converter

Xia

Yan

et al. 2016

IEEE Trans. Power Electron.

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“…The control of the inverter stage also generates the average DC-Link current idc to be used in the control of the rectifier stage. Even if idc can be calculated using a similar approach to the one in (18), it can also be expressed as in (21) in order to reduce the control computational burden…”

Section:  mentioning

confidence: 99%

Modulated Predictive Control for Indirect Matrix Converter

Tarisciotti

Lei

Formentini

et al. 2017

IEEE Trans. on Ind. Applicat.

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“…DC-bus utilization limits in multi-phase voltagesource inverters have been investigated in [28]. Interesting research has been proposed in [29] with the modulation control strategy of matrix inverters to obtain higher voltage transfer ratios. ① Non-operational low voltage shutdown range ② MPPT region covered by the inverter ③ Power limit/derating mode ④ Over-voltage non-operational (components failure) (VQ) lower dc-bus limit extension (ΔVdc).…”

Section: Introductionmentioning

confidence: 99%

“…The work described above [28] - [29] provided interesting/important contributions in the area of control and modulation strategies to improve dc-bus utilization. Over time, PV inverter technology has settled for installations under 1000V (open-circuit) and a typical MPPT bus range covers from 575V (lower dc-bus limit) to 850V (upper bus limit).…”

Section: Introductionmentioning

confidence: 99%

DC-Bus Voltage Range Extension in 1500 V Photovoltaic Inverters

Serban

Ordonez

Pondiche

2015

IEEE J. Emerg. Sel. Topics Power Electron.

107

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Solar plants based on single-stage conversion photovoltaic (PV) inverters (no dc-dc boost stage) have gained popularity due to their simplicity, high efficiency, and cost-effectiveness. Existing PV plants mostly operate under 1000V and are subject to wide dc-bus voltage variations due to the effect of PV cell temperature and the voltage of the maximum power point (well below the open circuit voltage). In particular, attractive locations such as US-Canada mountain/central regions are subject to extreme PV surface temperatures, making the dc-bus voltage variation a challenge for single-stage solar inverters. This paper investigates 1500V solar inverters with a focus on dcbus voltage range extension capabilities through novel modulation and power devices utilization. A comparative analysis with the existing 1000V solar inverters is presented to illustrate the significant advantages of the wide dc-bus range in 1500V systems. A lower voltage limit in the dc-bus is achieved by employing a novel voltage-reactive power (V-Q) dc-bus control strategy and modified modulation. A higher dc-bus peak voltage is obtained by maximizing the utilization of power switches. As a result, the 1500V inverter dc-bus voltage issignificantly extended to capture energy under extreme PV surface temperatures, greatly improving the limited range of traditional 1000V inverters. Simulations and experimental results using a 3-phase 3-level neutral point clamped inverter level are presented to validate the proposed dc-bus extension range, control strategy, and modulation scheme. Index Terms-DC-bus voltage utilization, 1000V and 1500V PV systems, Third-harmonic zero-sequence, Three phase modulation.I.

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Range of the Linear Modulation in Matrix Converters

Cited by 25 publications

References 31 publications

Research on Linear Output Voltage Transfer Ratio for Ultrasparse Matrix Converter

Research on Linear Output Voltage Transfer Ratio for Ultrasparse Matrix Converter

Modulated Predictive Control for Indirect Matrix Converter

DC-Bus Voltage Range Extension in 1500 V Photovoltaic Inverters

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