Supraharmonics reduction in NPC inverter with random PWM

Gil-de-Castro, Aurora; Moreno-Munoz, A.; Garrido, Joaquin; Rönnberg, Sarah; García, Emilio José; Morales, Tomás

doi:10.1109/isie.2017.8001520

Cited by 5 publications

(2 citation statements)

References 1 publication

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“…A large number of contributions to the SVPWM strategy have been created based on the randomization idea. The random strategy can obtain excellent performance on reducing harmonic distortion [13][14][15], electromagnetic emission [16][17][18][19], audible switching noise [20][21][22], vibration [21], and so on, which has been extensively exploited and verified. In order to destroy the fixed pattern in the deterministic SVPWM strategy, the switching frequency/period, the zero-vector distribution ratio, and the pulse positioning pattern should vary according to some specific deterministic or probability distribution laws.…”

Section: Introductionmentioning

confidence: 99%

Study on Harmonic Suppressing Performance of Random Space Vector PWM in Electric Vehicle

2023

IJOMAM

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The random SVPWM strategy can significantly suppress the clustering harmonic amplitudes of the traditional SVPWM strategy in the driving system of the electric vehicle (EV). Therefore, the principle of the random SVPWM strategy has been detailed. The expression for the signal randomization scheme is given, and then a comprehensive working time expression for the random switching frequency SVPWM, the random zero-vector distribution SVPWM, the random pulse position SVPWM and the hybrid random SVPWM schemes has been derived. An experimental validation has been carried out. The results show that the random SVPWM strategy has excellent performance on suppressing the harmonic amplitudes of the current and the electromagnetic torque.

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Section: Introductionmentioning

confidence: 99%

Study on Harmonic Suppressing Performance of Random Space Vector PWM in Electric Vehicle

2023

IJOMAM

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“…Recently, various studies have been conducted to study the possible mitigation techniques for SH emissions. For example, the authors in [10] proposed random-pulse position modulation (RPPM) method to mitigate SH emissions in neutral point clamped (NPC) inverters. Multiple filtering devices (e.g., variable capacitance filter) would be used to mitigate SH emissions [11].…”

Section: Introductionmentioning

confidence: 99%

Supraharmonics in Power Grid: Identification, Standards, and Measurement Techniques

et al. 2021

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In the electric power distribution system, power electronics technologies associated with renewable energy systems (RES) and smart grids have gained growing interest. The power electronics devices are used to convert, control, or transfer electric power from RES to the power grids. However, the continuous increase in switching frequencies resulting from these power electronics technologies has led to the emergence of new emissions in the range of 2-150 kHz, outside the classical frequency range for power quality. These emissions are known worldwide as supraharmonics (SH).These emissions negatively affect the power quality of electrical distribution systems and reduce their efficiency and lifetime. Thus, the supraharmonics emissions have been investigated in the literature, and several methods were developed focusing on identifying, measuring, and setting new standards to mitigate the impact of these emissions on the power quality. Although these individual studies have been well documented, a comparative overview of its identifications, current standards, and measurement techniques had not been described so far. Therefore, this study extensively reviews the related techniques and standards for identifying, measuring, and mitigating SH emissions. Moreover, the current research gap in this important field is highlighted, and an illustration on how this problem was tackled in the past few years is presented. Additionally, the SH characteristics alongside with insights into the mitigations and measurements are highlighted and analyzed accordingly. Finally, some important recommendations to mitigate SH emissions are suggested. This review will hopefully strengthen the efforts toward the development of SH domain by providing the necessary groundwork for further mitigations, standards, and measuring techniques improvement. INDEX TERMS Grid integration; harmonics emissions; high frequency; power quality; renewable energy sources; supraharmonics.

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Power Quality Issues of Distorted and Weak Distribution Networks in Mining Industry: A Review

et al. 2019

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Mining is an important industry in many countries including Australia and plays a vital role in their economy. The industry heavily depends on electricity as it employs different types of electrical loads. Consequently, a stable and reliable supply of electricity is vital for running the production smoothly. In this review paper, electrical characteristics of mining power systems are described and common power quality and energy efficiency concerns in these systems are stated and classified. Different types of common power electronics topologies used in the industry are also studied and main requirements for reliable and robust operation of the system are categorized. A comprehensive case study to elaborate power quality challenges in mining distribution network is performed.INDEX TERMS Distorted grid, distribution network, energy efficiency, mining industry, power quality, power system robustness.

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Supraharmonics reduction in NPC inverter with random PWM

Cited by 5 publications

References 1 publication

Study on Harmonic Suppressing Performance of Random Space Vector PWM in Electric Vehicle

Study on Harmonic Suppressing Performance of Random Space Vector PWM in Electric Vehicle

Supraharmonics in Power Grid: Identification, Standards, and Measurement Techniques

Power Quality Issues of Distorted and Weak Distribution Networks in Mining Industry: A Review

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