TY - CHAP
T1 - Power Systems Stability Analysis Based on Classical Techniques in Work
AU - Mahdavi Tabatabaei, Naser
AU - Demiroren, Aysen
AU - Taheri, Naser
AU - Hashemi, Ahmad
AU - Boushehri, Narges Sadat
PY - 2013
Y1 - 2013
N2 - This chapter presents a linearized Phillips-Heffron model of a parallel AC/DC power system in order to studying power system stability. In addition, a supplementary controller for a modeling back-to-back voltage source converter (BtB VSC) HVDC to damp low-frequency oscillations in a weakly connected system is proposed. Also, input controllability measurement for BtB VSC HVDC is investigated using relative gain array (RGA), singular value decomposition (SVD) and damping function (DF) and a supplementary controller is designed based on phase compensating method. In addition, a supplementary controller for a novel modeling VSC HVDC to damp low-frequency oscillations in a weakly connected system is proposed. The potential of the VSC HVDC supplementary controllers to enhance the dynamic stability is evaluated by measuring the electromechanical controllability through SVD analysis. The presented control scheme not only performs damping oscillations but also the voltage and power flow control can be achieved. Simulation results obtained by MATLAB verify the effectiveness of the VSC HVDC and its control strategy for enhancing dynamical stability. Moreover, a linearized model of a power system installed with a UPFC has been presented. UPFC has four control loops that, by adding an extra signal to one of them, increases dynamic stability and load angle oscillations are damped. To increase stability, a novel online adaptive controllers have been used analytically to identify power system parameters. Suitable operation of adaptive controllers to decrease rotor speed oscillations against input mechanical torque disturbances is confirmed by the simulation results.
AB - This chapter presents a linearized Phillips-Heffron model of a parallel AC/DC power system in order to studying power system stability. In addition, a supplementary controller for a modeling back-to-back voltage source converter (BtB VSC) HVDC to damp low-frequency oscillations in a weakly connected system is proposed. Also, input controllability measurement for BtB VSC HVDC is investigated using relative gain array (RGA), singular value decomposition (SVD) and damping function (DF) and a supplementary controller is designed based on phase compensating method. In addition, a supplementary controller for a novel modeling VSC HVDC to damp low-frequency oscillations in a weakly connected system is proposed. The potential of the VSC HVDC supplementary controllers to enhance the dynamic stability is evaluated by measuring the electromechanical controllability through SVD analysis. The presented control scheme not only performs damping oscillations but also the voltage and power flow control can be achieved. Simulation results obtained by MATLAB verify the effectiveness of the VSC HVDC and its control strategy for enhancing dynamical stability. Moreover, a linearized model of a power system installed with a UPFC has been presented. UPFC has four control loops that, by adding an extra signal to one of them, increases dynamic stability and load angle oscillations are damped. To increase stability, a novel online adaptive controllers have been used analytically to identify power system parameters. Suitable operation of adaptive controllers to decrease rotor speed oscillations against input mechanical torque disturbances is confirmed by the simulation results.
KW - Adaptive controller
KW - Back-to-back VSC (BtB VSC)
KW - Low-frequency oscillations
KW - Phillips-Heffron model
KW - Power system dynamic stability
KW - Power system stabilizer (PSS)
KW - Single-machine infinite bus (SMIB)
KW - Supplementary controller
KW - Unified power flow controller (UPFC)
KW - Voltage source converter (VSC)
UR - http://www.scopus.com/inward/record.url?scp=84898012102&partnerID=8YFLogxK
U2 - 10.1007/978-1-4471-5538-6_4
DO - 10.1007/978-1-4471-5538-6_4
M3 - Chapter
AN - SCOPUS:84898012102
SN - 9781447155379
T3 - Green Energy and Technology
SP - 113
EP - 155
BT - Analysis, Control and Optimal Operations in Hybrid Power Systems
PB - Springer Verlag
ER -
