An efficient method to include equality constraints in branch current distribution system state estimation [PDF]
, 2015 Distribution system state estimation is a fundamental tool for the management and control functions envisaged for future distribution grids. The design of accurate and efficient algorithms is essential to provide estimates compliant with the needed ...
MUSCAS, CARLO +3 more
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Double-Frame Current Control with a Multivariable PI Controller and Power Compensation forWeak Unbalanced Networks [PDF]
, 2016 The handling of weak networks with asymmetric loads and disturbances implies the accurate handling of the second-harmonic component that appears in an unbalanced network.
Rufery, Alfred, Siemaszko, Daniel
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Research on Three-phase Unbalance of Micro-grid Based on Active Disturbance Rejection Control
发电技术, 2020 Under the condition of three-phase unbalanced load in micro-grid, three-phase four-leg inverter can solve the unbalanced three-phase output voltage because of unbalanced load.
Mengran QIAN, Hui LI, Xinxiu LIU
doaj +1 more source
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
doaj +1 more source
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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P-resonant control for the neutral point of three phase inverter [PDF]
, 2014 In this project, a Proportional resonant (PR) current controller is proposed to maintain a balanced neutral point for a three-phase four wire inverter, which can be used in microgrid applications. The neutral-point circuit consists of a conventional
Omar Aashour, Omar Ali
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Unbalanced Current in Split Brushes
TANSO, 1965 Main traction motors MT 200 for the New Tokaido Line, which are used at high speed and high current density in pulslating or direct current, are carefully designed in order to keep good commutation and the brushes used are split ones made from soot.
K. Kokubu, M. Kumagai
openaire +2 more sources
Comprehensive Predictive Control Model for a Three-Phase Four-Legged Inverter
Energies, 2023 This paper presents a comprehensive model predictive control (CMPC) method to control a three-phase four-legged inverter (TP4LI) for PV systems. The proposed TP4LI model aims to predictively model and control switching frequency and higher voltage ...
Muhammad M. Fayyaz +3 more
doaj +1 more source
A Sexually Unbalanced Model of Current Account Imbalances [PDF]
, 2010 Large savings and current account surpluses by China and other countries are said to be a contributor to the global current account imbalances and possibly to the recent global financial crisis. This paper proposes a theory of excess savings based on a major, albeit insufficiently recognized by macroeconomists, transformation in many of these societies,
Qingyuan Du, Shang-Jin Wei
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Unbalanced and Reactive Currents Compensation in Three-Phase Four-Wire Sinusoidal Power Systems
Applied Sciences, 2020 In an unbalanced linear three-phase electrical system, there are inefficient powers that increase the apparent power supplied by the network, line losses, machine malfunctions, etc.
Rafael Montoya-Mira +4 more
doaj +1 more source