Probabilistic Voltage Sensitivity based Preemptive Voltage Monitoring in Unbalanced Distribution Networks [PDF]
2020 52nd North American Power Symposium (NAPS), 2021 With increasing penetration of renewable energy and active consumers, control and management of power distribution networks has become challenging. Renewable energy sources can cause random voltage fluctuations as their output power depends on weather conditions.
Abujubbeh, Mohammad +2 more
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A Generalized Index for Static Voltage Stability of Unbalanced Polyphase Power Systems including Th\'evenin Equivalents and Polynomial Models [PDF]
, 2019 This paper proposes a Voltage Stability Index (VSI) suitable for unbalanced polyphase power systems. To this end, the grid is represented by a polyphase multiport network model (i.e., compound hybrid parameters), and the aggregate behavior of the devices
Kettner, Andreas Martin, Paolone, Mario
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Grid Voltage Synchronization for Unbalanced Voltages Using the Energy Operator [PDF]
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2017 This paper presents a novel synchronization technique which can identify the grid voltage frequency and phase angle under unbalanced grid voltage conditions. The method combines the features of two different energy operator schemes: the basic one for estimating the frequency of the grid voltages and the cross-energy operator for phase tracking. Using a
Nwobu, CJ, Nakiganda, AM, Zhang, L
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Comprehensive Modeling of Induction Motor Imbalance Condition to Precise Assessment of Steady State Performance Based on Complex Current Unbalance Factor [PDF]
مجله مدل سازی در مهندسی, 2021 After a comprehensive study of voltage unbalance issue, this paper presents the defects of some unbalance factors and concentrates on the importance of considering the angle of complex voltage unbalance factor (CVUF) in order to unbalanced condition ...
Saeed Maghsoodi +3 more
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Power and Current Limiting Control of Wind Turbines Based on PMSG Under Unbalanced Grid Voltage
IEEE Access, 2021 Unbalanced grid voltage sags are the severe challenge for wind power generation system which connected to the grid successfully. The dc bus voltage and output power will fluctuate under unbalanced grid voltage. Moreover, the voltage sags will lead to the
Jun Liu, Chencong Zhao, Zhouhua Xie
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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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Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage
International Transactions on Electrical Energy Systems, 2022 One of the main challenges of a four-switch three-phase rectifier (FSTPR) is a DC imbalance in capacitor voltages. On the other hand, under unbalanced grid voltage conditions, unbalanced three-phase input current and the DC-link voltage affect the ...
M. Alizadeh Bidgoli, S. Honarbari
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Control of DFIG based wind generation systems under unbalanced network supply [PDF]
, 2007 This paper develops a dynamic model and control scheme for DFIG systems to improve the performance and stability under unbalanced grid conditions. A dynamic DFIG model containing the positive and negative sequence components is presented using stator ...
Wang, Yi, Xu, L.
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A multifunctional dynamic voltage restorer for power quality improvement [PDF]
, 2018 Power quality is a major concern in electrical power systems. The power quality disturbances such as sags, swells, harmonic distortion and other interruptions have an impact on the electrical devices and machines and in severe cases can cause serious ...
Dung, Vo Tien +2 more
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IET Power Electronics, 2021 Grid‐connected converters in distributed generation systems are required to operate under highly distorted voltage with a wide frequency range, and to provide active/reactive power information for ancillary services and power control. This paper presents
Sakda Somkun
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