نتایج جستجو برای: statcomstatic compensator

تعداد نتایج: 2972  

2011
Osamu Kaneko Shigeru Yamamoto Yusuke Wadagaki

In this paper, we propose a data-driven approach to the Smith compensator for the simultaneous attainment of a controller and a mathematical model of linear time-delay SISO systems. Under the situation in which we do not know a mathematical model of a plant, the proposed method here enables us to obtain the optimal Smith compensator for the desired tracking property based on the direct utilizat...

2013
Zakir Husain

This paper presents modeling and analysis of 12-phase distribution static compensator (DSTATCOM), which is capable of balancing the source currents in spite of unbalanced loading and phase outages. In addition to balance the supply current, the power factor can be set to a desired value. The theory of instantaneous symmetrical components is used to generate the twelve-phase reference currents. ...

Journal: :international journal of information, security and systems management 2014
maryam falah nezhadnaeini mohammad hajivand reihaneh karimi mohammad karimi

in this paper, the static var compensator (svc) has been used to improve dynamic behaviour of power system. to do this, a new objective function is formulated considering power loss reduction, voltage profile improvement and loadability margin decrease. other contribution of this research is proposing a novel structure for particle swarm optimization (pso) algorithm through modifying the initia...

Journal: :iranian journal of medical physics 0
hassan ali nedaie radiotherapy oncology department, cancer research center, cancer institute, tehran university of medical sciences, tehran, iran. nooshin banaee young researchers and elites club, science and research branch, islamic azad university, tehran, iran.

introduction intensity-modulated radiotherapy (imrt) is becoming an increasingly routine treatment method. imrt can be delivered by use of conventional multileaf collimators (mlcs) and/or physical compensators. one of the most important factors in selecting an appropriate imrt technique is integral dose. integral dose is equal to the mean energy deposited in the total irradiated volume of the p...

2015
J. Bangarraju V. Rajagopal A. Jaya Laxmi

This paper deals with Enhanced Phase Locked Loop Control scheme for Distributed Static Compensator (DSTATCOM) in the distribution system. The proposed control scheme based DSTATCOM eliminates current harmonics, maintains unity power factor at source, zero voltage regulation and load balancing. The Enhanced Phase Locked Loop (EPLL) Control scheme is based on Digital Signal Processing (DSP) which...

2009
Dong-Won Jung Jae Yong Lee

We reinterpret anomaly-mediated supersymmetry breaking from a fieldtheoretic perspective in which superconformal anomalies couple to either the chiral compensator or the U(1)R vector superfield. As supersymmetry in the hidden sector is spontaneously broken by non-vanishing vacuum expectation values of the chiral compensator F-term and/or the U(1)R vector superfield D-term, the soft breakdown of...

Journal: :IEICE Transactions 2011
Huan-Chan Ting Jeang-Lin Chang Yon-Ping Chen

For time-delay systems with mismatched disturbances and uncertainties, this paper developed an integral sliding mode control algorithm using output information only to stabilize the system. An integral sliding surface is comprised of output vectors and an auxiliary full-order compensator. The proposed output feedback sliding mode controller can satisfy the reaching and sliding condition and mai...

2005
Ryszard Gessing

Following the Smith compensator the parallel compensator designed for difficult, e.g. nonminimum phase plants is applied to systems with relay control. The compensator connected in parallel to the plant changes its properties so that the replacement plant model becomes simpler and may be shaped dependently upon the goal of the control. In the case of regulation on a constant level a first order...

Journal: :Engineering Letters 2009
Chun-Fei Hsu

be designed to dispel the approximation error. The most frequently used of compensator is like a sliding-mode control which maybe cause chattering phenomena to wear the bearing mechanism. To tackle this problem, this paper proposes a chattering-free adaptive wavelet neural network control (CAWNNC) system. The proposed CAWNNC system is composed of a neural controller and a smooth compensator. Th...

2014
Nivya K Chandran Mary P Varghese

This paper deals with PID compensator control of Synchronous Rectifier (SR) Buck Converter to improve its conversion efficiency under different load conditions with the help of a Zero Voltage Switching(ZVS)Logic Circuit. Since the freewheeling diode is replaced by a high frequency switch MOSFET in this buck configuration, the SR control technique itself will be sufficient under heavy load condi...

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