Presentation Chusser Ieee 2011
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Transcript of Presentation Chusser Ieee 2011
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Fast Stability Achievement through Fuzzy Logic Based Non-
Linear Excitation Control of Synchronous Generator
Muhammad Mohsin AmanKHA 100105
University of Malaya Supervisor: Dr. Ghauth Bin Jasmon
PRESENTER:
PAPER TITLE:
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What is Stability? Why are we calling “Fast Stability”? How to achieve Stability?
Some Definitions….
MM Aman, GB Jasmon, A Ghufran, MA Nawaz, M Raza. Fast stability achievement through fuzzy logic based non-linear excitation control of synchronous generator. 2011 IEEE Colloquium on Humanities, Science and Engineering (CHUSER), 431-436
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Power system MATLAB/Simulink® Model
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Total three-phase power: sinXEV
Ps
ft3
The above equation shows that the power produced by a synchronous generator depends on the angle δ between the Vt and Ef. The maximum power that the generator can supply occurs when d=90o.
s
ft
XEV
P3
Exciter controls not only help during transient but a necessary requirement during steady state also. The generator power limits increases due to increase of system voltages.
Steady-State Stability Limit….
MM Aman, GB Jasmon, A Ghufran, MA Nawaz, M Raza. Fast stability achievement through fuzzy logic based non-linear excitation control of synchronous generator. 2011 IEEE Colloquium on Humanities, Science and Engineering (CHUSER), 431-436
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Transient Stability….
MM Aman, GB Jasmon, A Ghufran, MA Nawaz, M Raza. Fast stability achievement through fuzzy logic based non-linear excitation control of synchronous generator. 2011 IEEE Colloquium on Humanities, Science and Engineering (CHUSER), 431-436
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Power System Stabilizers…..
How to Achieve Stability….??
MM Aman, GB Jasmon, A Ghufran, MA Nawaz, M Raza. Fast stability achievement through fuzzy logic based non-linear excitation control of synchronous generator. 2011 IEEE Colloquium on Humanities, Science and Engineering (CHUSER), 431-436
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Speed-Based (Dw) Stabilizer:Frequency-Based (Δf) Stabilizer:Power-Based (ΔP) Stabilizer:Integral-of-Accelerating Power (ΔPω) Stabilizer
Power System Stabilizer….
MM Aman, GB Jasmon, A Ghufran, MA Nawaz, M Raza. Fast stability achievement through fuzzy logic based non-linear excitation control of synchronous generator. 2011 IEEE Colloquium on Humanities, Science and Engineering (CHUSER), 431-436
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PI PD PID Fuzzy Logic Controller
Different Types of Controllers….
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What is Fuzzy Logic Controller? How to Implement In our System?
Some Definitions….
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A knowledge Base System A linguistic approach is used
What is Fuzzy Logic?
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Fuzzification Decision De-Fuzzification
What is Fuzzy Logic Controller?
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Detailed system of fuzzy controller
Power system MATLAB/Simulink® Model
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(a) Open Loop System (b) Closed Loop System
Fuzzy Logic Controller
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Our System Model
Power system MATLAB/Simulink® Model
Power system MATLAB/Simulink® Model
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Figure: Fuzzy logic controller and input output variables
FLC in Our System……
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Input 1: Voltage “error” Input 2: Rate of Change of Voltage Error
Output: Field Current
Membership Functions of FLC
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FAM Table
Where:NL= Negative Large PL=Positive LargeNM= Negative Medium PM=Positive MediumNS= Negative Small PS=Positive Small
ZE= Zero
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Comparison of load angle
Comparison of active power
Comparison of electromagnetic torque
Simulation and Results
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(a) Terminal voltage (Fault duration 0.1 sec)
(b) Terminal voltage (Fault duration 0.15 sec)
(c) Terminal voltage (Fault duration 0.18 sec)
Simulation and Results (cont…)
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THANKYOU ALL…!!
With Special Thanks To…..