Results 21 to 30 of about 24,585 (163)
Faults and unbalance forces in the switched reluctance machine [PDF]
, 1995 The paper identifies and analyzes a number of severe fault conditions that can occur in the switched reluctance machine, from the electrical and mechanical points of view.
Miller, T.J.E.
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International Journal of Electrical Power & Energy SystemsVoltage magnitude limit violations (under/over-voltage), phase unbalance and occasional conductor overloads are among the most frequent and operationally critical problems in European low-voltage (LV) distribution networks, and their incidence is rising ...
Tarikua Taye +5 more
doaj +1 more source
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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Neutral conductor current in three-phase networks with compact fluorescent lamps [PDF]
, 2013 In this paper, expressions of the neutral conductor current in three-phase networks with compact fluorescent lamps (CFLs) are obtained from a CFL “black-box” model proposed in the literature.
Cunill Solà, Jordi +2 more
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Estimation of power factor by the analysis of Power Quality data for voltage unbalance
2009 Third International Conference on Electrical Engineering, 2009 Power Quality (PQ) has been identified as a complex and diversified problem across the board in electrical power industry. It has not only confused the power utilities but also has attracted the attention of its customers and equipment manufacturers ...
Z. J. Paracha +3 more
semanticscholar +1 more source
Demonstration of sustained and useful converter responses during balanced and unbalanced faults in microgrids [PDF]
, 2012 In large power grids where converter penetration is presently low and the network impedance is predominantly reactive, the required response from converters during faults is presently specified by phrases such as “maximum reactive output”.
Burt, Graeme +4 more
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Piezoceramics-based Devices for Active Balancing of Flexible Shafts [PDF]
, 2006 This paper focuses on vibration control of flexible shafts by means of rotorfixed piezoelectric materials. The target is to realize compact solutions for the suppression of problematic resonant vibration at so-called flexural critical speeds.
Boer, A. de, Sloetjes, P.J.
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International Conference on Smart Grids and Green IT Systems, 2016 In the hierarchy of power transmission and distribution systems, the three-phase LV distribution networks are most susceptible to voltage unbalance (VU).
O. Gagrica, T. Uhl, P. Nguyen, J. Cobben
semanticscholar +1 more source
REVERSIBLE ENERGY CONVERTER WITH FLYWHEEL ENERGY STORAGE IN POWER SUPPLY SYSTEMS
Energy Systems, 2023 The problem of voltage unbalance and the need to power factor correction remain a relevant objective for electric power engineering. A variable load profile reduces the operating efficiency of electric power plants and leads to an overestimation of the ...
M. Blinnikov, V. Panteleev
semanticscholar +1 more source
Dynamics of piezoceramics-based mass and force actuators for rotating machines [PDF]
, 2007 In the past decade, it has become more and more common to install active vibration control devices on rotating systems like grinding machines, tooling centers, industrial fans and drive shafts.
Boer, André de +2 more
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