Results 41 to 50 of about 13,079 (253)
SiC heat pump converters with support for voltage unbalance in distribution grids [PDF]
2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 2015 This paper studies the impact of involving the demand side of the LV grid into the grid conditioning process. Heat pumps are distribution loads with a substation capacity increase in the last years, with expectancy of growth in the coming years. Controlling the loads is the first step in the transition to smart grids, and heat pumps are to be the first
Ionut Trintis +3 more
openaire +3 more sources
EnergiesThe ongoing replacement of synchronous machine generators (SMs) with converter-interface generators (CIGs) is raising the voltage unbalance of power systems, affecting power quality and grid stability.
Giovanni Gardan +2 more
doaj +1 more source
Adaptive PI + VPI Harmonic Current Compensation Strategy under Weak Grid Conditions
Applied Sciences, 2023 With the increase of the penetration rate of renewable energy power generation in the power system, the power grid gradually tends to be weak. Under the scenario of nonlinear load connecting to weak power grid, the grid-side voltage will produce ...
Lili Zhou, Wei Han, Jia Qi, Zhen Zhou
doaj +1 more source
Power quality improvements through power electronic interfaced distributed generation [PDF]
, 2010 In low-voltage distribution networks a large amount of single-phase nonlinear loads are connected. This leads to the combined presence of power system unbalance and harmonic distortion.
Degroote, Lieven +4 more
core +1 more source
IEEE AccessAs power systems face increased integration of intermittent energy sources, such as photovoltaic and wind conversion systems, grid-connected battery energy storage systems (BESS) have emerged as a crucial technology. However, BESS are also susceptible to
Pedro Paulo Fontolan de Faria +1 more
doaj +1 more source
IEEE Access, 2021 Grid codes require wind turbines to have capability to withstand a certain grid voltage unbalance without tripping. However, existing controls for brushless doubly-fed induction generator (BDFIG) based wind turbine under grid unbalance have many problems
Sheng Hu, Guorong Zhu, Yong Kang
doaj +1 more source
An improved digital phase locked loop against adverse grid conditions
Energy Reports, 2022 The phase-locked loop (PLL) is an essential synchronization technique to ensure stable operation and control of grid-connected converters. Nevertheless, under actual conditions, the grid voltage is often influenced by harmonics and frequency variation ...
Jiaqi Yu +5 more
doaj +1 more source
Overview of increasing the penetration of renewable energy sources in the distribution grid by developing control strategies and using ancillary services [PDF]
, 2014 Increasing the renewables energy resources in the distribution network is one of the main challenges of the distributed system operator due to instability, power quality and feeder capacity problems. This paper proposes a solution for further penetration
Bozalakov, Dimitar +3 more
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Influence of grid configuration on current conducting behaviour in PV installations [PDF]
, 2011 On the roof of an industrial site a 385 kWp PhotoVoltaic installation is operational. When production of this system reaches 60% of the installed power, the circuit breaker trips.
Debruyne, Colin +3 more
core +2 more sources
Improving the Performance of Low Voltage Networks by an Optimized Unbalance Operation of Three-Phase Distributed Generators [PDF]
, 2019 This work focuses on using the full potential of PV inverters in order to improve the efficiency of low voltage networks. More specifically, the independent per-phase control capability of PV three-phase four-wire inverters, which are able to inject ...
Gastalver Rubio, Adolfo +2 more
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