scholarly journals To design and develop a fuzzy based power flow controller for the stability improvement of a power system

2018 ◽  
Vol 225 ◽  
pp. 02016
Author(s):  
T. Malini ◽  
G. Radhakrishnan

With the growth and development of power electronics in the field of power system enumerates the new and efficient forms of controlling the power. This paper deals with a systematic approach to design an Interline Power Flow Controller (IPFC) for multi-machine infinite bus power system is proposed. It is an independent controller system which is suitable for an individual line compensation of a multiline power system. A Simulink model of an IPFC based multi-machine system along with fuzzy is developed. The outcomes obtained were compared with the conventional method of tuning the proposed controller to confirm the effectiveness and robustness of the developed controller. The analysis of an IPFC is assuring the response towards the system’s operation. In this proposed scheme, the controller is designed with the series and shunt configuration of an interline power flow controller using fuzzy technology. The two types of configuration in the designed system are manipulated in which most of the compensation in a multiline system is provided by means of the series controller, the shunt controller which is used for the real power compensation. The simulation of a designed system is done using MATLAB software-Simulink.

Interline Power Flow Controller is series compensating device for series compensation of Active and reactive power with distinctive ability of power flow management between many transmission lines in power network. During disturbances in power system, the stability of system causes deviation from stable operation and causes variation in different parameters of power system like load angle and Rotor speed. To suppress oscillations in load angle and rotor speed, the Artificial Neural Network (ANN) controller with IPFC is proposed to increase the stability of power network. IPFC with ANN is considered for analysis of IEEE 14 Bus system. For different fault conditions analysis is carried out using MATLAB/Simulink.


Electrician ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 25-32
Author(s):  
Rudy Gianto

Intisari — Makalah ini membahas penggunaan peralatan FACTS (Flexible AC Transmission Systems) untuk meningkatkan atau memperbaiki kestabilan sistem tenaga listrik yang terinterkoneksi. Peralatan FACTS pada umumnya digunakan untuk mengendalikan aliran daya-aktif dan/atau daya-reaktif serta untuk mengontrol besarnya tegangan sistem. Namun demikian, dengan memasang alat kontrol tambahan, peralatan FACTS dapat digunakan untuk meningkatkan redaman elektromekanik dan kestabilan sistem tenaga listrik sebagai fungsi sekundernya. Salah satu peralatan FACTS yang cukup populer saat ini adalah UPFC (Unified Power Flow Controller). UPFC merupakan peralatan FACTS generasi ketiga. Peralatan ini menggabungkan kompensator shunt dan kapasitor seri statik menjadi satu peralatan dengan sistem kendali terpadu. UPFC memiliki kemampuan unik untuk mengendalikan aliran daya listrik dan tegangan secara simultan sehingga memiliki potensi untuk digunakan dalam meningkatkan redaman dan kestabilan sistem. Makalah ini menyelidiki aplikasi dari UPFC pada peningkatan kestabilan sistem tenaga listrik yang terinterkoneksi. Keefektifan dari peralatan tersebut dalam memperbaiki penampilan dinamik dan meningkatkan kestabilan suatu sistem tenaga telah dikonfirmasi melalui hasil-hasil perhitungan nilaieigen dan divalidasi dengan menggunakan simulasi domain-waktu.Kata kunci — FACTS, UPFC, Redaman, Kestabilan, Sistem Tenaga Listrik Abstract — This paper discusses an application of FACTS (Flexible AC Transmission Systems) device in improving the stability of interconnected electric power system. FACTS devices are used primarily for controlling active- and/or reactive-power and also for voltage regulation. However, by employing some supplementary controllers, it can also be used for enhancing system electromechanical damping and stability as its secondary function. One of the most popular FACTS devices is UPFC (Unified Power Flow Controller). UPFC is a third generation of FACTS device. This device combines the shunt compensator and static series capacitor as one device with a unified control system. UPFC has a unique ability in controlling simultaneously system power flow and voltage, and therefore, has a potential to be used for system damping and stability improvement. This paper investigates an application of UPFC in improving the stability of interconnected power system. The effectiveness of the device in enhancing system dynamic performance and stability has been confirmed through eigenvalue calculations and validated using time-domain simulations.Keywords— FACTS, UPFC, Damping, Stability, Electric Power System


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