نتایج جستجو برای: voltage deviation reduction

تعداد نتایج: 659329  

2017
Mahesh Kumar Perumal Nallagownden Irraivan Elamvazuthi Ying-Yi Hong

In recent years, renewable types of distributed generation in the distribution system have been much appreciated due to their enormous technical and environmental advantages. This paper proposes a methodology for optimal placement and sizing of renewable distributed generation(s) (i.e., wind, solar and biomass) and capacitor banks into a radial distribution system. The intermittency of wind spe...

2015
Ankita Singh Shishir Dixit J. G. Singh S. N. Singh S. C. Srivastava Pavlos S. Georgilakis Siti Amely Jumaat Ismail Musirin Muhammad Murtadha Othman Hazlie Mokhlis Reza Sirjani Azah Mohamed Hussain Shareef

This paper addresses the optimal placement of static var compensators (SVCs) in a power system network in such a manner that power loss, voltage deviation and installation cost is minimized. Voltage deviation is minimized by improving voltage profile. The aim of this study is to minimizing the power loss, voltage deviation and installation cost under critical contingency and increasing load con...

1996
Gerald J. FitzPatrick Edward F. Kelley

A facility has been developed for the determination of the ratio of pulse high voltage dividers over the range from 10 kV to 300 kV using comparative techniques with Kerr electro-optic voltage measurement systems and reference resistive voltage dividers. Pulse voltage ratios of test dividers can be determined with relative expanded uncertainties of 0.4 % (coverage factor k = 2 and thus a two st...

2016
Yap Hoon Mohd Amran Mohd Radzi Mohd Khair Hassan Nashiren Farzilah Mailah Ying-Yi Hong

A new control technique known as inverted error deviation (IED) control is incorporated into the main DC-link capacitor voltage regulation algorithm of a three-level neutral-point diode clamped (NPC) inverter-based shunt active power filter (SAPF) to enhance its performance in overall DC-link voltage regulation so as to improve its harmonics mitigation performances. In the SAPF controller, DC-l...

2017
Hojong Choi Park Chul Woo Jung-Yeol Yeom Changhan Yoon

A power MOSFET linearizer is proposed for a high-voltage power amplifier (HVPA) used in high-frequency pulse-echo instrumentation. The power MOSFET linearizer is composed of a DC bias-controlled series power MOSFET shunt with parallel inductors and capacitors. The proposed scheme is designed to improve the gain deviation characteristics of the HVPA at higher input powers. By controlling the MOS...

Mehrdad Tarafdar Hagh Seyyed Jalal Kazempour

Although many mathematics-based and heuristic approaches have been recently developed on optimally allocation of TCSCs for lines overloads reduction and buses voltage stability enhancement during fault conditions, the works on the TCSCs efficiency to achieve the abovementioned goals are rare. This idea that TCSCs can surely enhance the system’s security must be comprehensively investigated. In ...

A. Yazdian, M. Mohamadian, S. M. Dehghan,

In this paper a hybrid active DC line conditioner for fluctuations and ripples reduction in voltage and current of DC power systems is proposed. Malfunctions in operation of equipments and systems which are supplied by low quality distribution power systems are one of the main effects of DC voltage ripple. In the proposed configuration a hybrid system including series and shunt active line ...

Journal: :International Journal of Control and Automation 2014

Journal: :Circulation 1978
S A Wickline J J McNamara

A vectorcardiographic method has been developed for determining the absolute size of myocardial infarcts in baboons resulting from coronary artery ligation. Spatial area (mvolt . msec) and voltage (mvolt) difference-vectors were obtained for 8 animals by measuring the voltage loss and temporal deviation from pre- to post-ligation McFee scalar leads. The difference vectors were then correlated w...

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