New Modulation Strategy for Five-Phase High-Frequency VSI Based on Sigma–Delta Modulators

Acosta-Cambranis, Fernando; Zaragoza, Jordi; Martinez, Joe L.; Berbel, Néstor

doi:10.1109/tpel.2021.3121531

Cited by 9 publications

(15 citation statements)

References 49 publications

(58 reference statements)

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“…In Fig. 9a can be seen how the maximum amplitudes of the CMV components get reduced when the proposed modulation strategies are implemented in comparison with those obtained with the DL-5P-AV-Σ∆ [38]. This performance is due to the limitation in the values of the CMV level transitions achieved by the proposed modulation strategies.…”

Section: Performance Comparison Between Dlς∆-cmvr and Dl-5p-av-σ∆mentioning

confidence: 92%

“…The Σ∆ modulation strategies applied in this paper are based on the Σ∆ modulation technique proposed in [38]. Four Σ∆ modulator loops are implemented in order to follow the reference vector in both the α-β and x-y subspaces, as shown…”

Section: A Five-phase σ∆ Algorithm Operationmentioning

confidence: 99%

“…The Σ∆-CMVR1 strategy is based on using only large vectors. Its maximum value of m in the linear region is 1.0515, the same as with DL-5P-AV-Σ∆ [38]. The proposed modulation Σ∆-CMVR3 strategy implements a vector group composed of large and medium vectors, as shown in Fig.…”

Section: B Five-phase CMV Mitigation σ∆ Modulation Strategiesmentioning

confidence: 99%

“…In [38], two modulation techniques based on Σ∆ modulators are proposed for a five-phase VSI. These techniques combined the use of Σ∆ modulators with the nearest vector algorithm to choose the vector to be applied during each sampling period.…”

Section: Introductionmentioning

confidence: 99%

“…Each modulation strategy is based on the use of Σ∆ modulators in conjunction with the nearest vector algorithm and the choice of a specific set of vectors (switching states) that meet the necessary criteria to obtain the desired CMV waveform. In [38], the reduction of the number of level transitions is also achieved. However, the size of these level transitions is variable due to the use of all the voltage vectors, whereas in the proposed modulation strategies, all the level transitions are equal and they are limited to a value of 0.2V dc , thus achieving an 80% reduction in the maximum CMV peakto-peak amplitude.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Common-Mode Voltage Mitigation Strategies Using Sigma–Delta Modulation in Five-Phase VSIs

Acosta-Cambranis

Zaragoza

Berbel

et al. 2022

IEEE Trans. Power Electron.

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Various sigma-delta (Σ∆) modulation techniques for reducing the maximum peak-to-peak amplitude of commonmode voltage (CMV) by 80% in a five-phase, high-frequency voltage source inverter (VSI) are proposed and evaluated in this paper. These techniques are based on choosing a set of vectors that limits the CMV amplitude. Operating the VSI under highfrequency pulse width modulations (PWM) generates a large number of changes in the CMV levels, which leads to commonmode currents (CMCs) and conducted electromagnetic interferences (EMIs). The proposed modulation techniques achieve the following: 1) high-efficiency converter operation and output voltage with low THD; 2) an 80% reduction in CMV peakto-peak amplitude; 3) a decrease in the number of the CMV transitions, thus reducing the CMCs; and 4) a decrease in the conducted EMI amplitude. The use of single-loop and doubleloop Σ∆ modulators are analyzed by means of Matlab/Simulink and PLECS simulations. The implementation of the proposed modulation techniques has been experimentally evaluated using a five-phase VSI with silicon carbide (SiC) semiconductors. In order to demonstrate the improved performance, the results obtained are compared with those of other PWM and space vector modulation (SVM) techniques that also mitigate the CMV amplitude by 80% but lack the other improvements.

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Section: Performance Comparison Between Dlς∆-cmvr and Dl-5p-av-σ∆mentioning

confidence: 92%

Section: A Five-phase σ∆ Algorithm Operationmentioning

confidence: 99%

Section: B Five-phase CMV Mitigation σ∆ Modulation Strategiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Common-Mode Voltage Mitigation Strategies Using Sigma–Delta Modulation in Five-Phase VSIs

Acosta-Cambranis

Zaragoza

Berbel

et al. 2022

IEEE Trans. Power Electron.

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Analysis and assessment of electrical and thermal performance of five‐phase voltage source inverter under different modulation strategies: Comparative study under balanced and unbalanced load

Sabri,

Benachour,

Guessar

et al. 2024

Circuit Theory & Apps

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SummaryThis paper compares four modulation strategies applied to five‐phase voltage source inverters (5PH‐VSI). The modulation strategies under investigation are sine wave pulse width modulation (S‐PWM), fifth‐harmonic injection PWM (FH‐PWM), space vector‐PWM using two large vectors (2V‐SVPWM), and space vector‐PWM using two medium and two large vectors (4V‐SVPWM). The study utilizes simulations to analyze the results based on four performance criteria: low‐order harmonics (LOH), maximum modulation index (MMI), common mode voltage (CMV), and total harmonic distortion (THD) under balanced and unbalanced load. To validate the simulation results for these criteria, an experimental test‐bench is employed, which includes a 5PH‐VSI feeding an R‐L load, and controlled by a low‐cost STM32F4‐DISCOVERY microcontroller board. Additionally, a mathematical approach is used to calculate the total thermal losses (TTL) then simulations are performed using Piecewise Linear Electrical Circuit Simulation (PLECS) software to assess the modulation schemes based on additional thermal performance criteria: conduction losses (CL), switching losses (SL), TTL, the efficiency, and the maximum permissible heat sink thermal resistance (MPHTR) at the steady‐state regime. The results indicate that the 4V‐SVPWM method demonstrates superior efficiency in terms of THD. Furthermore, it showcases the lowest TTL at high switching frequencies, allowing for the best efficiency and minimizing MPHRT, therefore providing the largest margin for the heat sink thermal resistance design. On the other hand, the 2V‐SVPWM offers the highest MMI, but this comes at the cost of high TTL and some LOHs appearing. In addition, it exhibits the highest CMV for unbalanced load. S‐PWM and FH‐PWM offer the advantage of simpler implementation.

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Comparative analysis of control strategies impact on power losses in IGBT power modules with a multiphysics‐circuit coupling method

Dou,

Zhang,

Tian

et al. 2024

Circuit Theory & Apps

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Power losses in semiconductor devices present a significant impediment to advancing power electronics systems for achieving higher frequencies, improved efficiency, and greater integration. A major challenge lies in directly coupling power losses with various control strategies, considering the variations in manufacturers, packaging, and process structures within the power electronics field. This paper introduces a field‐circuit coupling simulation methodology of the insulated gate bipolar transistor (IGBT) within the Simulink/COMSOL environment, using a conventional three‐phase six‐switch voltage source inverter (VSI) IGBT module as a case study. A composite transfer function interconnects the electrical and thermal aspects, enabling bidirectional coupling between IGBT temperature and losses. This study aims to comprehensively compare the effects of various control strategies, namely, single‐vector, dual‐vector, and three‐vector current model predictive control (CMPC) and space vector pulse width modulation (SVPWM), on the losses and temperature of IGBT power modules. The findings emphasize that losses are significantly influenced by the selection of weighting factor coefficients and power factor settings under the same CMPC control strategy with a fixed switching frequency. Additionally, the selection of control strategies, such as CMPC and SVPWM, substantially impacts power losses in power electronic devices.

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New Modulation Strategy for Five-Phase High-Frequency VSI Based on Sigma–Delta Modulators

Cited by 9 publications

References 49 publications

Common-Mode Voltage Mitigation Strategies Using Sigma–Delta Modulation in Five-Phase VSIs

Common-Mode Voltage Mitigation Strategies Using Sigma–Delta Modulation in Five-Phase VSIs

Analysis and assessment of electrical and thermal performance of five‐phase voltage source inverter under different modulation strategies: Comparative study under balanced and unbalanced load

Comparative analysis of control strategies impact on power losses in IGBT power modules with a multiphysics‐circuit coupling method

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