Power Transfer Capability Enhancement with UPFC under Circumstances of Uncertain Power Flow Pattern

2006 ◽  
Author(s):  
M. Takasaki
Keyword(s):  
Flow Pattern ◽  
Power Flow ◽  
Power Transfer ◽  
Transfer Capability

scholarly journals Three Level Inverter Controlled UPFC for Harmonic Reduction using Space Vector Pulse Width Modulation Technique

2020 ◽  
Vol 9 (5) ◽  
pp. 734-738
Keyword(s):  
Pulse Width ◽  
Power Flow ◽  
Pulse Width Modulation ◽  
Unified Power Flow Controller ◽  
Power Transfer ◽  
Harmonic Reduction ◽  
Switching Pattern ◽  
Transfer Capability ◽  
Power Quality Improvement ◽  
Power Flow Controller

Unified Power Flow Controller (UPFC) is one of the most important device in FACTS family, this device in this work is used for power quality improvement. In this paper three level inverter is proposed for UPFC for the reduction of harmonics and for the enhancement of power transfer capability. SVPWM technique decides switching pattern of three level inverter. Therefore, in this paper this method is applied for controlling the three level inverter output. The proposed method is applied on four bus system and results are compared with UPFC without three level inverter. Results demonstrated that the proposed method effectively decreasing the harmonics and increasing the power transfer capability.

Reactive Power Loss Reduction in Distribution Network Using Crow Search Optimization and Available Transfer Capability

2020 ◽  
Vol 29 (15) ◽  
pp. 2050237
Author(s):  
N. Kannan ◽  
S. Sutha
Keyword(s):  
Power System ◽  
Power Flow ◽  
Distribution Systems ◽  
Reactive Power ◽  
Thermal Power ◽  
Power Transfer ◽  
Available Transfer Capability ◽  
Power Loss Reduction ◽  
Transfer Capability ◽  
Bulk Power

In distribution systems, it is important to guarantee the protected operating state of the power system by the transmission suppliers. To transmit a secure, dependable and economical supply of electric power, long separation bulk power transmission is fundamental. Despite that, the power transfer capacity of the power system is constrained because of the elements like thermal limits, voltage limits and security limits. Crow Search Optimizations (CSO) have been exhibited to be reasonable methodologies in taking care of nonlinear power system issues with Available Transfer Capability (ATC). It is conceivable to improve transmission capabilities. This proposed method based on the IEEE 30-bus system is considered with two distinct areas, and furthermore, the input source is a typical load system with a distributed network. There is a need to control the reactive power flow at the Point of Common Coupling (PCC) between the grids of various voltage levels. To operate a power system securely and furthermore to acquire the benefit of bulk power transfer, ATC evaluation is required. The load gets raised from 50% to 100% in the distribution side by including the thermal power plant (85% and 95% load is included) and with the procured condition, ATC and losses are to be determined. This ATC is determined for verified power supply to the consumers.

scholarly journals Impacts of MT-HVDC Systems on Enhancing the Power Transmission Capability

2019 ◽  
Vol 10 (1) ◽  
pp. 242 ◽  
Author(s):  
Ali Raza ◽  
Armughan Shakeel ◽  
Ali Altalbe ◽  
Madini O. Alassafi ◽  
Abdul Rehman Yasin
Keyword(s):  
Transmission Lines ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Power Transmission ◽  
Test System ◽  
Voltage Source ◽  
Power Transfer ◽  
High Voltage Direct Current ◽  
Transfer Capability ◽  
Excellent Control

In this paper, improvement in the power transfer capacity of transmission lines (TLs) by utilizing a multi-terminal high voltage direct current (MT-HVDC) grid is discussed. A multi-terminal HVDC grid designed for wind power can be used as an extra transmission path in interconnected systems during low wind conditions, and provides extra dynamic stability and security. This paper deals with the power transfer capacity as well as the small signal (SS) stability assessments in less damped oscillations accompanying inter area modes. Computation of the maximum allowable power transfer capability is assessed via DC optimal power flow-based control architecture, permitting more power transfer with a definite security margin. The test system is assessed with and without the exploitation of MT-HVDC grid. Simulation work is done using a generic computational framework i.e., international council on large electric systems (CIGRE) B4 test bench with a Kundur’s two area system, shows that voltage source converters (VSCs) provide excellent control and flexibility, improving the power transfer capability keeping the system stable.

scholarly journals Power Transfer Capability Recognition in Deregulated System under Line Outage Condition Using Power World Simulator

2022 ◽  
Vol 3 (4) ◽  
pp. 277-285
Author(s):  
Prakash Kerur ◽  
R. L. Chakrasali
Keyword(s):  
Power Systems ◽  
Transmission Lines ◽  
Power Flow ◽  
Sensitivity Index ◽  
Power Transfer ◽  
Distribution Factor ◽  
Available Transfer Capability ◽  
Interconnected Network ◽  
Transfer Capability ◽  
Bulk Power

The major challenges in deregulated system are determination of available transfer capability on the interconnected transmission lines. Electricity industry deregulation is the required for creating a competitive market throughout the world, which instigate new technical issues to market participants and Power System Operators (PSO). Power transfer capability is a crucial parameter to decide the power flow in the lines for further transactions and the estimation of Transfer Capability decides the power transactions based on the safety and ability of the system. This parameter will decide if an interconnected network could be reliable for the transfer of bulk power between two different areas of the network without causing risk to system consistency. The Power Transfer Distribution Factor (PTDF) is the sensitivity index, which decides the transfer capability in the interconnected network under deregulated power systems. This experiment is conducted on IEEE-6 bus system using Power World Simulator to determine the transfer capability in deregulated system under line outage condition.

scholarly journals Optimal allocation of multi-type FACTS Controllers by using hybrid PSO for Total Transfer Capability Enhancement

1970 ◽  
Vol 9 (1) ◽  
pp. 55-63 ◽  
Author(s):  
Suppakarn Chansareewittaya ◽  
Peerapol Jirapong
Keyword(s):  
Particle Swarm Optimization ◽  
Power Flow ◽  
Optimal Allocation ◽  
Particle Swarm ◽  
Power Transfer ◽  
Swarm Optimization ◽  
Hybrid Particle Swarm Optimization ◽  
Transfer Capability ◽  
Facts Controllers ◽  
Bus System

In this paper, the new hybrid particle swarm optimization (hybrid-PSO) based on particle swarm optimization (PSO), evolutionary programming (EP), and tabu search (TS) is developed. Hybrid-PSO is proposed to determine the optimal allocation of multi-type flexible AC transmission system (FACTS) controllers for simultaneously maximizing the power transfer capability of power transactions between generators and loads in power systems without violating system constraints. The particular optimal allocation includes optimal types, locations, and parameter settings. Four types of FACTS controllers consist of thyristor-controlled series capacitor (TCSC), thyristor-controlled phase shifter (TCPS), static var compensator (SVC), and unified power flow controller (UPFC). Power transfer capability determinations are calculated based on optimal power flow (OPF) technique. Test results on IEEE RTS 24-bus system, IEEE 30-bus system and, IEEE 118-bus system indicate that optimally placed OPF with FACTS controllers by the hybrid-PSO could enhance the higher power transfer capability more than those from EP and conventional PSO.

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