Bus voltage regulation of interconnected power system using static phase shifter

2003 ◽  
Author(s):  
R.M. Hilloowala ◽  
A.M. Sharaf
Keyword(s):  
Power System ◽  
Phase Shifter ◽  
Voltage Regulation ◽  
Interconnected Power System ◽  
Static Phase ◽  
Bus Voltage

scholarly journals A Lean Satellite Electrical Power System with Direct Energy Transfer and Bus Voltage Regulation Based on a Bi-Directional Buck Converter

Aerospace ◽  
2020 ◽  
Vol 7 (7) ◽  
pp. 94
Author(s):  
Juan J. Rojas ◽  
Yamauchi Takashi ◽  
Mengu Cho
Keyword(s):  
Energy Transfer ◽  
Power System ◽  
High Reliability ◽  
Voltage Regulation ◽  
Buck Converter ◽  
Electrical Performance ◽  
Electrical Power System ◽  
Direct Energy ◽  
Bus Voltage ◽  
Direct Energy Transfer

The lean satellite approach requires aggressive measures for cutting development time and resource utilization; therefore, the power system should be simple, with a low part count, high reliability, and good electrical performance. The fully-regulated bus direct energy transfer (FRDET) architecture is considered the most common solution for big satellites; however, it is rarely used in lean satellite designs because of its complexity and the lack of commercial off-the-shelf solutions. Based on this, a new implementation of the FRDET architecture was proposed, prototyped, and evaluated. The system was based on a bidirectional converter that charges and discharges the battery while maintaining the bus voltage regulation. The system was evaluated by comparing it with the prevailing architectures in the field, in terms of efficiency and average harvested solar power per orbit. The proposed system was superior in both aspects which made it more suitable for its application in lean satellite designs.

scholarly journals LFC of DFIG based Two Area System using TCPS, SSSC and SMES

2019 ◽  
Vol 9 (2) ◽  
pp. 1911-1916
Keyword(s):  
Power System ◽  
Phase Shifter ◽  
Magnetic Energy ◽  
Frequency Control ◽  
Load Frequency Control ◽  
Interconnected Power System ◽  
Flexible Ac Transmission ◽  
Load Frequency ◽  
Doubly Fed ◽  
Ac Transmission

The frequency and tie-line power in a system varies as the load changes. Therefore in order to damp the frequency, Load Frequency Control (LFC) is used. The function of the LFC is to minimizes the transient deviation and to make the steady state change in frequency, zero. This paper presents a Load frequency control (LFC) of Doubly Fed Induction Generator (DFIG) based two area system using Thyristor Controlled Phase Shifter (TCPS), Static Synchronous Series Compensator (SSSC) and Superconducting Magnetic Energy storage (SMES). Flexible AC Transmission Systems (FACTS) devices and SMES are used to damp out the frequency oscillations effectively in a power system. In order to maintain the system frequency at nominal value and the oscillations to settle down quickly a fast acting controller is desirable. In this paper a MATLAB based PID controller has been proposed in order to minimize the damping oscillation of the two-area interconnected power system. The results obtained with various combinations are presented and the results were encouraging.

Automatic Gain Controller for Variable Speed Wind Turbines

2008 ◽  
Vol 9 (1) ◽  
Author(s):  
Mohamed S ElMoursi
Keyword(s):  
Power System ◽  
Transient Stability ◽  
Reactive Power ◽  
Stability Margin ◽  
Voltage Regulation ◽  
Primary Control ◽  
Voltage Reference ◽  
Voltage Profile ◽  
Frequency Model ◽  
Interconnected Power System

This paper presents a novel controller for DFIG based wind parks, designed to achieve more efficient voltage regulation, reactive power compensation and to enhance the transient stability margin of the interconnected power system. The supervisory-secondary voltage control is used to generate the local voltage reference, providing an improved overall voltage profile, while combining an automatic gain controller (AGC) to improve the transient response of the primary control loop. The controller is implemented and tested with a power system comprising of a lumped, fundamental frequency model of a DFIG based wind park, and hydro and diesel generators connected to the electric grid. The performance of the controller was investigated for both steady-state improvements as well as under extreme contingencies to demonstrate its benefits.

DC Bus Voltage Regulation Strategy in Maritime DC Power System for Minimized Converter Loss

2021 ◽  
pp. 1-1
Author(s):  
Jonghun Yun ◽  
Young-kwang Son ◽  
Hyung-June Cho ◽  
Seung-Ki Sul AE
Keyword(s):  
Power System ◽  
Voltage Regulation ◽  
Dc Power ◽  
Dc Bus ◽  
Bus Voltage
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