scholarly journals Voltage Sag Mitigation in Multi-line Transmission System Using Generalized Unified Power Flow Controller

2007 ◽  
Vol 1 (1) ◽  
pp. 72-78
Author(s):  
T Ruban Deva Prakash ◽  
N Kesavan Nair ◽  
Soundarajan Krishnan
Keyword(s):  
Power Flow ◽  
Transmission System ◽  
Voltage Sag ◽  
Unified Power Flow Controller ◽  
Flow Controller ◽  
Power Flow Controller

scholarly journals The influence of Unified Power Flow Controller to increase the value of Available Transfer Capability on transmission system Java – Bali, Indonesia

2021 ◽  
Vol 878 (1) ◽  
pp. 012064
Author(s):  
D P S Siahaan ◽  
A Soebagio ◽  
B Widodo ◽  
S Stepanus ◽  
E B O Sihite
Keyword(s):  
Power Flow ◽  
Transmission System ◽  
Active Power ◽  
Unified Power Flow Controller ◽  
Available Transfer Capability ◽  
Multiple Control ◽  
Industrial Growth ◽  
Flow Controller ◽  
The Right ◽  
Power Flow Controller

Abstract Industrial growth and population in Indonesia led to an increase in demand for electricity. It needs a device that can perform a voltage correction profile online so that power will flow through transmission line. TJBTB (Transmisi Jawa Bagian Timur dan Bali) conditions before the installation of UPFC (Unified Power Flow Controller), the power supply received by the load is not 100% obtained from plants in the region, for example the Paiton power plant. In this research, the method used is with the help of MATLAB R2014a simulation by designing a 500 kV transmission system configuration and the placement of the UPFC found in regional IV namely East Java - Bali. From the simulation results, showing that there was a change in power flow when placing the UPFC. The right location is the West Surabaya - Gresik channel. On the Ngimbang bus there is a change in active power which before using UPFC by 1612 MW to 2208 MW after using UPFC, an increase in active power was 36.97%. The UPFC can fulfill all these functions and thereby meet multiple control objectives by adding the injected voltage with appropriate amplitude and phase angle, to the terminal voltage v.

scholarly journals Certain Investigation of Real power flow control of Artificial Neural Network based Matrix converter-Unified Power Flow Controller in IEEE 14 Bus system

2020 ◽  
Vol 2 (2) ◽  
pp. 54-81
Author(s):  
Boopalan C ◽  
Saravanan V.
Keyword(s):  
Power System ◽  
Power Control ◽  
Power Flow ◽  
Transmission System ◽  
Matrix Converter ◽  
Unified Power Flow Controller ◽  
Real Power ◽  
Flow Controller ◽  
Power Flow Controller ◽  
Switching State

The power consumption is rapid increased due to ASD (Adjustable Speed Drives) and automation in industries and large consumption of electricity in domestic regions increased the concern of the power quality. The quality of the power received in the Distribution system is altered because of the losses in the transmission system. The losses in the transmission system is mitigated using the FACTS (Flexible AC Transmission System)controller among these controllers UPFC (Unified Power Flow Controller) plays a vital role in controlling the shunt and series reactive powers in the bus of the power system. The conventional topology of the UPFC consists of AC-DC converter and energy stored in the DC link and DC-AC converter injected a voltage in series to the bus which as to be controlled. Whereas a new topology based on matrix converter can replace the dual converters and perform the required task. The construction of 2-bus, 7-bus and IEEE-14-bus power system is designed and modeled. MC-UPFC (Matrix Converter Based Unified Power Flow Controller) is designed and constructed. The MC-UPFC is the rich topology in the FACTS which is capable of controlling both the transmission parameters simultaneously with the switching technique of Direct power control by the smooth sliding control which gives less ripple in the injecting control parameters such as control voltage [Vc] and voltage angle [α]. By implementing MC-UPFC the real and reactive power can be controlled simultaneously and independently. The control techniques were designed based on the Proportional Integral derivative(PID) with sliding surface power control, FLC (Fuzzy Logic Controller) and ANN (Artificial Neural Network)  and  the performance of  Vc and α of the controllers are investigated. Hence the sliding surface and relevant control switching state of the MC can be controlled by the FLC which gives the robust and autonomous decision making in the selection of the appropriate switching state for the effective real power control in the power system. The work has been carried out in the MATLAB Simulink simulator which gives the finest controlling features and simple design procedures and monitoring of the output.

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