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A Two-Level 24-Pulse Voltage Source Converter with
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This project deals with the performance analysis of a two-level, 24-pulse Voltage Source Converters (VSCs) for High Voltage DC (HVDC) system for power quality improvement. A two level VSC is used to realize a 24-pulse converter with minimum switching loss by operating it at fundamental frequency switching (FFS). The performance of this converter is studied on various issues such as steady state operation, dynamic behavior, reactive power compensation, power factor correction, and harmonics distortion. Simulation results are presented for a two level 24-pulse converter to demonstrate its capability.
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static synchronous compensator (STATCOM), simulati
4.0
Astatic synchronous compensator (STATCOM), also known as a "static synchronous condenser" ("STATCON"), is a regulating device used on alternating current electricity transmission networks. It is based on a power electronics voltage-source converter and can act as either a source or sink of reactive AC power to an electricity network. If connected to a source of power it can also provide active AC power. It is a member of the FACTS family of devices.
navid34728 0 0
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Enhanced Priority List Unit Commitment Method for
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This project presents a new enhanced priority list (EPL) based method to solve large scale unit commitment problems, with specific focus on low demand. The EPL algorithm is set up based on a priority list of power plants. Plants are activated according to this list, while schedules are adapted to respect technical restrictions as minimum up and down times, and minimum operating points. The developed EPL algorithm is tested on a benchmark system which has been widely used in the literature. Optimization results and computation times of the algorithm are compared with values reported in the literature and with a mixed integer linear programming (MILP) approach. The developed EPL method turns out to be highly accurate and very fast. The simulation set up is further extended, to specifically focus on a setting with low volatile residual demand, e.g., as a result of high penetration of intermittent renewables. Such setting is typically difficult to solve by reg
navid34728 1 0
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SIMULATION FOR A 3-PHASE INDUCTION MOTOR UNDER UNB
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A three-phase induction motor is one of the most popular and versatile motor in electrical power system and industries. It can perform the best when operated using a balanced three-phase supply of the correct frequency. However, deviation from this causes a great reduction in torque, power and efficiency. One of them, which is the most severe condition is single-phasing. The single phasing is nominally interpreted as blowing out of fuse in one of the line, but in fact, it is a special case of insertion of impedance in the line. In this paper, the authors have studied the relationship between the torque, current and power in terms of an impedance inserted in series with the line. The authors have also experimentally performed the observations with insertion of different amount of impedance. The simulation model is also presented along side.
navid34728 2 0
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Symmetrical and unsymmetrical short-circuit cu
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A general method for calculating the short-circuit currents of a squirrel-cage (SCIG) and a doubly fed induction generator(DFIG) using crowbar protection is presented. The method results in an approximate analytic expression thatallows calculating the SCIG and DFIG short-circuit currents.
navid34728 1 0
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