Coordinated Designs of Fuzzy PSSs and Load Frequency Control for Damping Power System Oscillations Considering Wind Powe
The damping enhancement of power system oscillations remains one of the challenging current interests for secure and reliable operation. This paper presents a comprehensive overview of a novel control scheme that considers synchrophasors and Power System
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Abstract The damping enhancement of power system oscillations remains one of the challenging current interests for secure and reliable operation. This paper presents a comprehensive overview of a novel control scheme that considers synchrophasors and Power System Stabilizers in coordination with an optimized Load Frequency Control loop in order to resolve the undamped local and wide-area oscillatory troubles. Accordingly, a Robust Fuzzy PSS using local signals is first examined. Additionally, an Inter-Area PSS based on high-sampling rate phasor measurement unit is investigated. In fact, using time synchronized measurements as control input signals will participate effectively in monitoring the energy management process. Thus, another configuration mixing local and remote control inputs of a Mixed-PSS is proposed. Performances of these PSSs are evaluated in coordination with a tuned PI-based load frequency control design under different operating conditions. Results on a modified 9-Bus IEEE test system including DFIG wind turbines are reported in order to justify the proposal’s applicability. Keywords Phasor measurement unit · Load frequency control · Inter-area oscillations · Power system stabilizer · Fuzzy logic controller · Damping enhancement
Nomenclature LFC IAPSS RFPSS MPSS
Load Frequency Control Inter-Area Power System Stabilizer Robust Fuzzy Power System Stabilizer Mixed-Power System Stabilizer
N. Mekki (B) · L. Krichen Department of Electrical Engineering, National School of Engineers of Sfax, Sfax, Tunisia e-mail: [email protected] L. Krichen e-mail: [email protected] © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2021 H. Haes Alhelou et al. (eds.), Wide Area Power Systems Stability, Protection, and Security, Power Systems, https://doi.org/10.1007/978-3-030-54275-7_6
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DFIG WTs ACE TG PI PID PSS MB-PSS FLC WACS PMU
N. Mekki and L. Krichen
Doubly Fed Induction Generator Wind Turbines Area Control Error Turbine Governor Proportional-Integral Proportional-Integral-Derivative Power System Stabilizer Multi Band-Power System Stabilizer Fuzzy Logic Controller Wide Area Control Systems Phasor Measurement Unit
1 Introduction Recently, with the continuous increasing of electricity demand and high complexity of power grid interconnections, power systems will be eventually vulnerable to several problems during the system operation mainly caused not only by low frequency oscillations but also by inter-area oscillations. In fact, poorly-damped oscillations may lead considerably to system wide breakups especially under severe operating conditions. As local measurements based controls have restricted modal observability [1], using wide-area signals control determinations in such circumstance could be considerably beneficial in damping inter-area oscillations. Hence, in order to enhance the stability of power system swings prompted by these oscillatory modes, Power System Stabilizer (PSS) installation is economically and effectivel
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