Results 31 to 40 of about 12,297 (303)
Flexible control for power‐sharing in the CHB‐based SST under voltage unbalance conditions
IET Power Electronics, 2021 Solid‐state transformers (SSTs) have flexible capabilities to improve the power quality issues. These improvements impose disturbances into the SST converters that require proper control algorithms. In this paper, the problems of the unequal active power
Mehdi Babaei, Reza Ghandehari
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Multilevel cascaded three-phase inverter with low-voltage ride-through flexible control capability for photovoltaic systems [PDF]
Proceedings of the Estonian Academy of Sciences, 2020 A potential solution for medium and large-scale solar power plants connected to a grid is the multilevel cascade H- bridge (CHB) inverter. Nevertheless, it has not been thoroughly studied how it operates during voltage sags.
Omar Kanaan Kanaan Albasri +1 more
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Ancillary Services in Hybrid AC/DC Low Voltage Distribution Networks [PDF]
, 2019 In the last decade, distribution systems are experiencing a drastic transformation with the advent of new technologies. In fact, distribution networks are no longer passive systems, considering the current integration rates of new agents such as ...
Barragán Villarejo, Manuel +4 more
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Voltage Unbalance Compensation in Distribution Feeders Using Soft Open Points
Journal of Modern Power Systems and Clean Energy, 2022 Soft open points (SOPs) are power electronic devices that may replace conventional normally-open points in distribution networks. They can be used for active power flow control, reactive power compensation, fault isolation, and service restoration ...
Rui You, Xiaonan Lu
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Flexible Compensation of Voltage and Current Unbalance and Harmonics in Microgrids
Energies, 2017 In recent years, the harmonics and unbalance problems endanger the voltage and current quality of power systems, due to increasing usage of nonlinear and unbalanced loads.
Seyyed Yousef Mousazadeh Mousavi +3 more
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Energy Reports, 2022 The unbalance of neutral-point potential (NPP) is an important problem in three-level converter. This paper proposes a neutral-point potential balancing control method with the third harmonic injected pulse width modulation (PWM) for three-level ...
Jie Tian +4 more
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Energies, 2018 The direction taken towards sustainable power system and renewable energy generation is now irreversible. The power grid needs to host more renewable energy sources, such as solar power, and tackle power quality problems that come along with it.
Ammar Arshad +2 more
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Adaptation of power lines fault location methods to voltage characteristics deviations [PDF]
E3S Web of Conferences, 2019 The influence of voltage characteristics deviations, acceptable in normal operation of power grid, at power lines emergency state fault location methods precision is considered.
Obalin Mixail, Majstrenko Georgij
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Frontiers in Energy Research, 2023 Under non-ideal grid operating conditions such as unbalanced grid voltage and harmonic grid that are commonly found in microgrid conditions, the negative sequence components of the microgrid voltage interfere with the active and reactive current controls
Sue Wang, Junbo Yang
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Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings [PDF]
, 2012 In this paper we demonstrate through simulation the potential for phase-shifted fibre Bragg gratings incorporating structural slow light to enable intrinsic reflection-mode point sensors for electric field or voltage.
Niewczas, Pawel, Orr, Philip
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