Harmonics Mitigation of Stand-Alone Photovoltaic System Using LC Passive Filter

Adak, Süleyman

doi:10.1007/s42835-021-00777-7

Cited by 37 publications

(7 citation statements)

References 14 publications

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“…Deteriorated waves are called as non-sinusoidal waves. Voltage and current waveform distortion due to harmonics can lead to the high-voltage installations and HST either damaged or blockaded [62][63][64][65].…”

Section: Plos Onementioning

confidence: 99%

High-frequency harmonics suppression in high-speed railway through magnetic integrated LLCL filter

Al-Barashi,

Wang,

Bhutta

2024

PLoS ONE

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The traction converter modulation generates switching-frequencies current harmonics. The trapped filters can eliminate these switching harmonics, reducing total inductance and filter size. Nonetheless, in comparison with the typical inductor-capacitor-inductor (LCL) filter, the trap inductor needs a larger magnetic core. Moreover, the trapped filter has not been analyzed in the traction systems. This paper proposes a magnetic integrated inductor-trap-inductor (LLCL) filter to decrease the filter’s size and investigate its application in traction converters. In fact, the application range of this filter is quite broad, and it can be used in various electrical power systems, including industrial power systems, renewable energy systems, transportation systems, and building power systems. The LC-trap may be formed by connecting the equivalent trap inductor, introduced through the magnetic coupling between inverter-side and grid-side inductors, in series with the filter capacitor. Furthermore, for H-bridge unipolar pulse width modulation (PWM) traction converters, the prominent switching harmonics are concentrated at the double switching frequencies. Therefore, the stability zone is expanded by moving the resonance above the Nyquist frequency. The presented filter’s features and design are thoroughly analyzed. The proposed method is finally validated by the MATLAB/Simulink simulation and hardware-in-the-loop (HIL) experimental results. Compared to the discrete windings, the integrated ones can save two magnetic cores. Furthermore, the proposed filter can meet IEEE criteria with 0.3% for all the harmonics and total harmonic distortion (THD) of 2.15% of the grid‐side current.

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Section: Plos Onementioning

confidence: 99%

High-frequency harmonics suppression in high-speed railway through magnetic integrated LLCL filter

Al-Barashi,

Wang,

Bhutta

2024

PLoS ONE

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“…Alongside a low-pass harmonic filter LC that smooth's the output voltage, resulting in a sinusoidal waveform, thus, enhancing the power quality. Furthermore, the LC filter eliminates the switching frequency and protects the inverter from the transients [28]. The inverter supplies an AC load representing either, an electrical grid or the electric equipment in a standalone house.…”

Section: Bidirectional Dc-ac Inverter Controlmentioning

confidence: 99%

“…In control theory, the parameter to be controlled must appear in the state space representation of the plant, as a result, the output voltage across the capacitor 𝑉 2 as well as the inductor's current 𝐼 𝐿 are selected as state variables 𝑋 1 and 𝑋 2 respectively. 𝐿 𝐹 (28) where the control law 𝑢 is defined as ( 29) and (30).…”

Section: Figure 3 Full Bridge Invertermentioning

confidence: 99%

Power transfer control within the framework of vehicle-to-house technology

Sassi

Mazzi

Errahimi

et al. 2023

IJECE

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<span lang="EN-US">The emerging vehicle-to-grid (V2G) technology has gained a lot of praise in the last few years, following its experimental validation in several countries. As a result, this technology is being investigated for standalone houses under the name of vehicle-to-house (V2H). This latter proposes a two-way power transfer between the electric vehicles and isolated houses relying on renewable sources for power supply. In this paper an implementation of the V2H technology is investigated, using the adaptive backstepping control approach for the bidirectional half-bridge and the integral sliding mode control for the DC-DC converter. The robustness of the controller and its capability to respond to the desired performances were tested using different realistic scenarios. The obtained results yielded, a perfect sinusoidal output voltage with a voltage level of 220 V and a frequency of 50 Hz. This is further been validated by a frequency analysis resulting in a THD of 0.25%.</span>

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“…In respond to the energy shortage and environment degradation, the renewable energy like solar energy [ 1 ] has gained a rapid development in recent years around the world. As the backbone of renewable energy, the global new installed capacity of wind energy has grown remarkably, where the year-over-year growth is more than 50% from 2019 to 2020; and the compound annual growth rate of the offshore wind energy will be more than 30% from 2021 to 2025 [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical power control of a large-scale wind farm by using a data-driven optimization method

Di,

Xiao,

Pan

et al. 2023

PLoS ONE

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With the participation in automatic generation control (AGC), a large-scale wind farm should distribute the real-time AGC signal to numerous wind turbines (WTs). This easily leads to an expensive computation for a high-quality dispatch scheme, especially considering the wake effect among WTs. To address this problem, a hierarchical power control (HPC) is constructed based on the geographical layout and electrical connection of all the WTs. Firstly, the real-time AGC signal of the whole wind farm is distributed to multiple decoupled groups in proportion of their regulation capacities. Secondly, the AGC signal of each group is distributed to multiple WTs via the data-driven surrogate-assisted optimization, which can dramatically reduce the computation time with a small number of time-consuming objective evaluations. Besides, a high-quality dispatch scheme can be acquired by the efficient local search based on the dynamic surrogate. The effectiveness of the proposed technique is thoroughly verified with different AGC signals under different wind speeds and directions.

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Harmonics Mitigation of Stand-Alone Photovoltaic System Using LC Passive Filter

Cited by 37 publications

References 14 publications

High-frequency harmonics suppression in high-speed railway through magnetic integrated LLCL filter

High-frequency harmonics suppression in high-speed railway through magnetic integrated LLCL filter

Power transfer control within the framework of vehicle-to-house technology

Hierarchical power control of a large-scale wind farm by using a data-driven optimization method

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