Performance evaluation of PID power system stabilizer for synchronous generator

2003 ◽  
Author(s):  
G. Radman ◽  
Y. Smaili
Keyword(s):  
Performance Evaluation ◽  
Power System ◽  
Synchronous Generator ◽  
Power System Stabilizer ◽  
System Stabilizer

scholarly journals Low Frequency Damping Control for Power Electronics-Based AC Grid Using Inverters with Built-In PSS

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2435
Author(s):  
Ming Yang ◽  
Wu Cao ◽  
Tingjun Lin ◽  
Jianfeng Zhao ◽  
Wei Li
Keyword(s):  
Power System ◽  
Reactive Power ◽  
Low Frequency ◽  
Synchronous Generator ◽  
Power System Stabilizer ◽  
Frequency Range ◽  
Signal Model ◽  
Small Signal Model ◽  
System Stabilizer ◽  
Damping Torque

Low frequency oscillations are the most easily occurring dynamic stability problem in the power system. With the increasing capacity of power electronic equipment, the coupling coordination of a synchronous generator and inverter in a low frequency range is worth to be studied further. This paper analyzes the mechanism of the interaction between a normal active/reactive power control grid-connected inverters and power regulation of a synchronous generator. Based on the mechanism, the power system stabilizer built in the inverter is used to increase damping in low frequency range. The small-signal model for electromagnetic torque interaction between the grid-connected inverters and the generator is analyzed first. The small-signal model is the basis for the inverters to provide damping with specific amplitude and phase. The additional damping torque control of the inverters is realized through a built-in power system stabilizer. The fundamentals and the structure of a built-in power system stabilizer are illustrated. The built-in power system stabilizer can be realized through the active or reactive power control loop. The parameter design method is also proposed. With the proposed model and suppression method, the inverters can provide a certain damping torque to improve system stability. Finally, detailed system damping simulation results of the universal step test verify that the analysis is valid and effective.

scholarly journals Modeling and Simulation of a Synchronous Generator with Rotor Angle Stability and Solve Inter Area Mode of Oscillation in Power System using Power System Stabilizer(PSS)

2019 ◽  
Vol 18 (1) ◽  
pp. 35-43
Author(s):  
Md. Lutfur Rahman ◽  
Md. Abu Hena Shatil
Keyword(s):  
Power System ◽  
Synchronous Generator ◽  
Power System Stabilizer ◽  
Feedback Signal ◽  
Power System Stabilizers ◽  
Power Oscillations ◽  
Power Frequency ◽  
Angle Stability ◽  
Rotor Angle Stability ◽  
System Stabilizer

Power System stabilizers are a form of supplementary control that is used to provide additional damping to the inter area mode oscillations or to stabilize a generator whose voltage regulator gain is such that it may result in negatively damped machine-to-system oscillations under certain conditions. It has seen observed that the damping of these small power oscillations can be improved by leading back appropriate stabilizing signals to the input of the gain’s exciter. Some input signals that have been considered in the research are slip speed, accelerating power, frequency. In this manuscript, we will use an establish approach to obtain a preliminary design for a power system stabilizer with slip speed as the feedback signal.

scholarly journals Power System Stabilizer Tuning Algorithm in a Multimachine System Based on S-Domain and Time Domain System Performance Measures

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5644
Author(s):  
Predrag Marić ◽  
Ružica Kljajić ◽  
Harold R. Chamorro ◽  
Hrvoje Glavaš
Keyword(s):  
Power Systems ◽  
Power System ◽  
Time Domain ◽  
Synchronous Generator ◽  
Pole Placement ◽  
Power System Stabilizer ◽  
Weight Functions ◽  
Novel Approach ◽  
The Time Domain ◽  
System Stabilizer

One of the main characteristics of power systems is keeping voltages within given limits, done by implementing fast automatic voltage regulators (AVR), which can raise generator voltage (i.e., excitation voltage) in a short time to ceiling voltage limits while simultaneously affecting the damping component of the synchronous generator electromagnetic torque. The efficient way to increase damping in the power system is to implement a power system stabilizer (PSS) in the excitation circuit of the synchronous generator. This paper proposes an enhanced algorithm for PSS tuning in the multimachine system. The algorithm is based on the analysis of system participation factors and the pole placement method while respecting the time domain behavior of the system after being subdued with a small disturbance. The observed time-domain outputs, namely active power, speed, and rotor angle of the synchronous generator, have been classified and validated with proposed weight functions based on the minimal square deviation between the initial values in a steady-state and all sampled values during the transitional process. The system weight function proposed in this algorithm comprises s-domain and time-domain indices and represents a novel approach for PSS tuning. The proposed algorithm performance is validated on IEEE 14-bus system with a detailed presentation of the results in a graphical and table form.

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