Design and Analysis of a Higher Order Power Filter for Grid-Connected Renewable Energy Systems

Anzalchi, Arash; Moghaddami, Masood; Moghadasi, Amir; Pour, Maneli Malek; Sarwat, Arif I.

doi:10.1109/tia.2017.2712783

Cited by 25 publications

(15 citation statements)

References 24 publications

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“…where L tr and C tr are the inductance and the capacitance in the LC trap [7]. For instance, L tr = L 2 and C tr = C 2 in the LT-C-L filter.…”

Section: Parameter Design Of Filtermentioning

confidence: 99%

“…Usually, C t = 0.05C b for the GCI [5,7,9]. In high-order filters including multiple capacitor branches, the capacitance of each branch is almost half of the total capacitance [7]. 3) Determine the series inductances such that (29) is satisfied by assuming R d = 0 tentatively.…”

Section: Parameter Design Of Filtermentioning

confidence: 99%

“…© 2021 The Authors. IET Control Theory & Applications published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology resonance frequencies are within the Nyquist frequency in the conventional approaches [1,4,7,8,10]. However, such a conventional design approach is conservative and is not based on the system control theory.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Stability and robust performance analysis of grid‐connected inverter with high‐order filter: Resonances beyond the Nyquist frequency

Koiwa

Kuribayashi

Zanma

et al. 2021

IET Control Theory & Appl

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Filters are inevitable for grid-connected inverters to attenuate the current harmonics caused by the pulse width modulation which is usually used in power conversion systems. High-order filters have attracted much attention because they attenuate the current harmonics effectively. Nevertheless, the high-order filters have some resonances which cause instability of the system. In addition, the resonance frequencies shift to high as the inductors and capacitors are smaller. It implies that the resonance frequencies may be beyond the Nyquist frequency in downsizing the filter. This complicates the stability and performance analyses of the system. This paper investigates rigorous input-output stability and analyses a robust performance based on the sampled-data control theory regardless of whether the resonance frequencies are beyond the Nyquist frequency or not. Our analysis contributes to downsizing the filter synthesis while the stability and the robustness are guaranteed even if the resonance frequencies are beyond the Nyquist frequency. The effectiveness of the proposed method is verified through simulations and experiments.

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“…where L tr and C tr are the inductance and the capacitance in the LC trap [7]. For instance, L tr = L 2 and C tr = C 2 in the LT-C-L filter.…”

Section: Parameter Design Of Filtermentioning

confidence: 99%

Section: Parameter Design Of Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Stability and robust performance analysis of grid‐connected inverter with high‐order filter: Resonances beyond the Nyquist frequency

Koiwa

Kuribayashi

Zanma

et al. 2021

IET Control Theory & Appl

View full text Add to dashboard Cite

show abstract

“…The harmonics at switching frequency and the multiple of switching frequency are problematic for the converters of renewable energy system. In order to mitigate these harmonics with less voltage drop and small component size, another higher order active filter is presented in [134].…”

Section: Filtersmentioning

confidence: 99%

High-Level Penetration of Renewable Energy Sources Into Grid Utility: Challenges and Solutions

et al. 2020

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The utilization of renewable energy sources (RESs) has become significant throughout the world, especially over the last two decades. Although high-level RESs penetration reduces negative environmental impact compared to conventional fossil fuel-based energy generation, control issues become more complex as the system inertia is significantly decreased due to the absence of conventional synchronous generators. Some other technical issues, high uncertainties, low fault ride through capability, high fault current, low generation reserve, and low power quality, arise due to RESs integration. Renewable energy like solar and wind are highly uncertain due to the intermittent nature of wind and sunlight. Cutting edge technologies including different control strategies, optimization techniques, energy storage devices, and fault current limiters are employed to handle those issues. This paper summarizes several challenges in the integration process of high-level RESs to the existing grid. The respective solutions to each challenge are presented and discussed. A comprehensive list of challenges and solutions, for both wind and solar energy integration cases, are well documented. Finally, the future recommendations are provided to solve the several problems of renewable energy integration which could be key research areas for the industry personnel and researchers.

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“…Accordingly, the demand for the use of renewable energy sources, such as wind power, solar energy, and biomass, has rapidly increased [1][2][3]. To meet the demand and reduce the problems associated with the depletion of fossil fuels and environmental pollution, numerous studies have been conducted for green energy and renewable energy development [4][5][6]. The common renewable energy systems are wind power generation (WPG), which uses wind turbines, and solar energy generation (SEG), which uses photovoltaic cells.…”

Section: Introductionmentioning

confidence: 99%

Low-Voltage Ride-Through Control Strategy for a Grid-Connected Energy Storage System

Bak

Lee

2018

Applied Sciences

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This paper presents a low-voltage ride-through (LVRT) control strategy for grid-connected energy storage systems (ESSs). In the past, researchers have investigated the LVRT control strategies to apply them to wind power generation (WPG) and solar energy generation (SEG) systems. Regardless of the energy source, the main purpose of the LVRT control strategies is to inject reactive power into the grid depending on the grid-code regulations using the grid-side inverter; the proposed LVRT control strategy for grid-connected ESSs also has the same purpose. However, unlike the WPG and SEG systems having unidirectional power flow, grid-connected ESSs have a bidirectional power flow. Therefore, the charging condition of the grid-connected ESSs should be considered for the LVRT control strategy. The proposed LVRT control strategy for grid-connected ESSs determines the injection quantity of the active and reactive currents, and the strategy depends on the voltage drop ratio of the three-phase grid. Additionally, in this paper, we analyzed the variations of the point of common coupling (PCC) voltage depending on the phase of the reactive current during the charging and discharging conditions. The validity of the proposed LVRT control strategy is verified and the variations of the PCC voltage of the grid-connected ESS are analyzed by simulation and experimental results.

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Design and Analysis of a Higher Order Power Filter for Grid-Connected Renewable Energy Systems

Cited by 25 publications

References 24 publications

Stability and robust performance analysis of grid‐connected inverter with high‐order filter: Resonances beyond the Nyquist frequency

Stability and robust performance analysis of grid‐connected inverter with high‐order filter: Resonances beyond the Nyquist frequency

High-Level Penetration of Renewable Energy Sources Into Grid Utility: Challenges and Solutions

Low-Voltage Ride-Through Control Strategy for a Grid-Connected Energy Storage System

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