نتایج جستجو برای: voltage imbalance compensation

تعداد نتایج: 173828  

Journal: :international journal of smart electrical engineering 2014
ghazanfar shahgholian mehdi mahdavian michael noorani kalteh mohammadreza janghorbani

the interline power flow controller (ipfc) is a concept of the facts controller for series compensation which can inject a voltage with controllable magnitude and phase angle among multi lines. this paper proposes a novel ipfc-based damping neuro-control scheme using pso for damping oscil la t i o ns in a power system to improve power system stability. the add i tion of a supplementary controll...

Journal: :IEICE Transactions 2012
Toru Sai Yasuhiro Sugimoto

By using a quadratic compensation slope, a CMOS current-mode buck DC-DC converter with constant frequency characteristics over wide input and output voltage ranges has been developed. The use of a quadratic slope instead of a conventional linear slope makes both the damping factor in the transfer function and the frequency bandwidth of the current feedback loop independent of the converter’s ou...

2016
R. Ghanizadeh M. Ebadian G. B. Gharehpetian

In a microgrid (MG), it is possible to have some sensitive loads that require high voltage quality. In this paper, a new technique is proposed for selective compensation of main voltage harmonics in islanded MGs. The proposed technique is capable of adjusting the compensation percentage in proportion with the existing disturbance in the sensitive load bus (SLB) and sharing the compensation work...

2015
Haiyan Wang

Large perceptual class motor load is the main production equipment of metallurgical enterprise, although has taken independent secondary substation power supply mode, but due to the influence of the impact load, Often appears on the bus voltage drop and low power factor and harmonic big problems, , this article is based on SVC compensation control mechanism, the sectional control mode, the prin...

Journal: :DEStech Transactions on Engineering and Technology Research 2017

A new technique presents to improve the performance of dynamic voltage restorer (DVR) for voltage sag mitigation. This control scheme is based on cuckoo search algorithm with tree fuzzy rule based classifier (CSA-TFRC). CSA is used for optimizing the output of TFRC so the classification output of the network is enhanced. While, the combination of cuckoo search algorithm, fuzzy and decision tree...

2004
Kee-Chee Tiew Randall Geiger

A curvature compensation technique for bandgap voltage references that utilizes an adaptive reference temperature is presented. This compensation technique is intended for high-resolution temperature-stable analogdigital converters. A test circuit had been designed in a 0.6 pn CMOS technology to implement this technique. The reference voltage has a simulated temperature coefficient of 2.3 ~ p m...

Linear AC power supplies can be replaced by their nonlinear switching counterparts due to the lower voltage drops and higher efficiency and power density of switching-mode inverters. Multilevel cascaded H-bridge (CHB) converters are the preferred inverter structure because of modular configuration, control, and protection. The output voltage quality in CHB converters depends on the number of ou...

2013
Ivelina N. Cholakova Tihomir B. Takov Radostin Ts. Tsankov Nicolas Simonne Slavka S. Tzanova

Adjacent Hall microsensors, comprising a silicon substrate and four contacts, providing simultaneously two supply inputs and two differential outputs, are characterized. The voltage related sensitivity is in the order of 0.11T, and a cancellation method for offset compensation is used, achieving residual offset in the micro scale which is also compared to a single Hall plate. Keywords—Adjacent ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید