Results 261 to 270 of about 660,282 (312)

Investigations on Boundaries of Controllable Power Flow with Uniefed Power Flow Controller

2006 International Conference on Power Electronic, Drives and Energy Systems, 2006
The limits of controllable power flow in the transmission line with the UPFC are determined by the equipment ratings and the line limits. In this paper, boundaries of controllable power flow in a simple two machine power system with UPFC based on a geometrical approach are investigated.
S. Srividhya, C. Nagamani, A. Karthikeyan   +2 more
openaire   +1 more source

Power flow control capability analysis of unified power flow controller

i-manager's Journal on Power Systems Engineering, 2022
In the field of power system restructuring, Flexible Alternating Current Transmission System (FACTS) technology has become indispensable for alleviating the challenges of load flow control, voltage control, transient stability, and dynamic stability. The Unified Power Flow Controller (UPFC) is the fastest, most flexible, and most capable FACTS device ...
openaire   +1 more source

Flow Control Power is Nondecentralizable

IEEE Transactions on Communications, 1981
Flow control in store-and-forward computer networks is appropriate for decentralized execution. A formal description of a class of "decentralized flow control algorithms" is given. The feasibility of maximizing power with such algorithms is investigated.
openaire   +2 more sources

Control structures for the unified power flow controller

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014
The basic principles of UPFC operation are discussed and the series inverter dynamics are explained. Two control strategies — the Cross-Coupling method and the Advanced Control method are discussed in detail and their bode plots are analyzed. The two control methods are implemented in PSCAD for the NYPA UPFC at Marcy substation.
Saman Babaei, Govind Chavan, Subhashish Bhattacharya   +2 more
openaire   +1 more source

Simulation Study of Fuzzy Based Unified Power Flow Controller on Power Flow Controlling

2008 Workshop on Power Electronics and Intelligent Transportation System, 2008
Unified power flow controller (UPFC) is the most widely used FACTS device to control the power flow and to optimize the system stability in the transmission line. The controller used in the control mechanism has an important effect on the performance of UPFC.
Saribulut L., Tümay M.
openaire   +1 more source

Power flow control and solutions with Dynamic Flow Controller

2008 IEEE Canada Electric Power Conference, 2008
This paper presents two new methods for power flow calculation of power systems in presence of dynamic flow controller (DFC), which is a new member of FACTS controllers. In first method A new steady state model of DFC is introduced for the implementation of the device in the conventional Newton-Raphson power flow algorithm.
Roya Ahmadi, Abdolreza Sheykholeslami, Ali Nabavi Niaki, Hamidreza Ghaffari   +3 more
openaire   +1 more source

Modeling of the generalized unified power flow controller for optimal power flow

Proceedings of the 2011 International Conference on Electrical Engineering and Informatics, 2011
The latest generation of FACTS devices, the convertible static compensator (CSC) [1], is the progress of several innovative operating concepts in the historic development and application FACTS. One of the concepts is the GUPFC or multi-line UPFC have been done, which can control bus voltage and power flows of more than one line or according to even a ...
Rakhmad Syafutra Lubis, Sasongko Pramono Hadi, Tumiran   +2 more
openaire   +1 more source

Research on characteristics and power flow control strategy of rotary power flow controller

2015 5th International Youth Conference on Energy (IYCE), 2015
Rotary power flow controller (RPFC) has the advantages of simple control method, output without harmonics, high reliability and low costs when applied to power flow control. The mathematical model is analyzed and the equivalent model is established. Then, the characteristics of RPFC are studied and the relationship between the RPFC injected voltage and
null Zhenlong Tan, null Chunpeng Zhang, null Qirong Jiang   +2 more
openaire   +1 more source

An optimal power flow control method of power system by interline power flow controller (IPFC)

2005 International Power Engineering Conference, 2005
The FACTS (flexible AC transmission system) devices have been considered as excellent controllers in a power system for better reliability and transmission capacity on a long-term and cost-effective basis. Interline power flow controller (IPFC) is a new concept of the FACTS controller for series compensation with the unique capability of power flow ...
S. Tecrathana, A. Yokoyama, Y. Nakachi, M. Yasumatsu   +3 more
openaire   +2 more sources

Power flow control and loss minimization with unified power flow controller (UPFC)

Canadian Conference on Electrical and Computer Engineering 2004 (IEEE Cat. No.04CH37513), 2004
In this paper, the UPFC injection model is used to investigate its effect on load flow and loss reduction in power systems. In this study, the Newton-Raphson algorithm is modified to consider the benefits of having a UPFC in the power system. Simulations have been implemented in MATLAB and the IEEE 14-bus system has been used as a case study ...
A. Farhangfar, S.J. Sajjadi, S. Afsharnia   +2 more
openaire   +1 more source