Solar PV inverter supraharmonics reduction with random PWM

Rönnberg, Sarah; Gil-de-Castro, Aurora; Moreno-Munoz, A.; Bollen, Math; Garrido, Joaquin

doi:10.1109/cpe.2017.7915248

Cited by 16 publications

(4 citation statements)

References 1 publication

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“…These filters can potentially cause severe negative impacts on the system if not properly designed. Moreover, some advanced modulation techniques for DG inverters are also reported in the literature to ensure distortion-free injection of active power into the grid [47]. However, compensation of the harmonics associated with local nonlinear loads is possible through active filters [48], hybrid filters [49], smart impedance [50] and by incorporating multifunction PQ ancillary services in traditional DGs, i.e.…”

Section: Uɵlity Gridmentioning

confidence: 99%

An analytic hierarchy process-based novel approach for benchmarking the power quality performance of grid-integrated renewable energy systems

Bajaj

Singh

2020

Electr Eng

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The technical, social, economic as well as environmental multi-benefits of renewable energy sources do not come without certain power quality (PQ) challenges, and deterioration of voltage and current quality is foremost among them. Technically, voltage harmonic distortion, current harmonic distortion, voltage and frequency fluctuations and voltage imbalances are the five decisive issues that judge the PQ performance of renewable energy systems. Healthy PQ, in terms of all the aforementioned phenomena, is assured by monitoring and benchmarking their corresponding indices, but performing the same, only at distributed generation (DG) bus level, is not sufficient since also the grid, as well as load bus PQ, plays an important role which makes the overall PQ assessment of renewable energy systems quite complex. This paper presents an analytic hierarchy process-based novel approach for evaluating and benchmarking the PQ performance of grid-integrated renewable energy systems. The procedure results in a single compound power quality index that is alone ample for benchmarking the overall PQ performance of a renewable energy system above the threshold level as well as for ranking among the PQ performances of individual DG systems differentiated by either renewable energy types or sittings in a distribution network. Such a compound index can ease the PQ performance evaluation and benchmarking process up to a maximum extent. Furthermore, it can be very helpful also for distribution system operators to monitor and penalize the DG owners for poorly operating from PQ aspects and motivate the same for adopting best option among different power quality improvement (PQI) technologies. The proposed approach is verified on a grid-integrated PV-based DG system in MATLAB/Simulink. Besides that, the effect of different PQI techniques, on PQ performance, is tested by the application of the proposed approach. At last, the validation of impending effects of high penetration of renewable energy on PQ of the system is also attempted by the proposed approach.

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Section: Uɵlity Gridmentioning

confidence: 99%

An analytic hierarchy process-based novel approach for benchmarking the power quality performance of grid-integrated renewable energy systems

Bajaj

Singh

2020

Electr Eng

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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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“…In [20], a measurement approach for high-frequency harmonics up to 9 kHz has been presented. In [21], the effect of modulation techniques on supra-harmonics is investigated. Accordingly, Random Pulse-Position Modulation (RPPM) proved highly effective in reducing supra-harmonics.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effect of Different Parameters on Harmonics and EMI Emissions at the Frequency Range of 0–9 kHz

Ganjavi

Rathnayake

Zare

et al. 2020

2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)

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Due to the increasing use of fast switching semiconductors, emissions affected by the Adjustable Speed Drives (ASDs) are entering the new frequency range of 2-150 kHz. Emissions at this new frequency range are categorised into 2-9 and 9-150 kHz ranges among the standardization communities. Consequently, designing new filters for theses frequency ranges is of the determined efforts by ASD manufacturers. In this paper, essential factors impacting on the filter design in ASDs for 0-2 kHz and the new frequency range of 2-9 kHz are investigated. Non-linear effects of DC link filter on low order harmonic emissions of 0-2 kHz is investigated to understand how the existing filters can comply with the emerging standard of 2-150 kHz. Moreover, a system model is presented to predict the effects of cables and Electromagnetic Interference (EMI) filter parameters on resonances at the frequency range of 2-9 kHz.

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Solar PV inverter supraharmonics reduction with random PWM

Cited by 16 publications

References 1 publication

An analytic hierarchy process-based novel approach for benchmarking the power quality performance of grid-integrated renewable energy systems

An analytic hierarchy process-based novel approach for benchmarking the power quality performance of grid-integrated renewable energy systems

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

Investigating the Effect of Different Parameters on Harmonics and EMI Emissions at the Frequency Range of 0–9 kHz

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