PS4012 Application of DSP to Power System Protection Syllabus:
PS4012 Application of DSP to Power System Protection Syllabus – Anna University PG Syllabus Regulation 2021
COURSE OBJECTIVES:
To expose the students to learn about DFT and Wavelet transforms.
To provide an in-depth knowledge on the components used for the implementation of digital protection.
To impart knowledge on different algorithms for digital protection of power system components.
To implement digital protection for transformer.
To understand different decision making methodologies in protective relays.
UNIT I DIGITAL SIGNAL PROCESSING TECHNIQUES
Sampling-Principle of scaling-aliasing-Decimation, Interpolation. Fourier and discrete Fourier transforms – Fast Fourier Transforms.-Wavelet transform -Numerical Algorithms
UNIT II DIGITAL PROTECTION
Digital Protection -performance and operational characteristics of digital protection. Basic components of digital relays -Signal conditioning systems -Conversion subsystem -digital relay subsystem Numerical relay for generator, transformer, feeder, busbar protection
UNIT III ALGORITHMIC TECHNIQUES
Finite difference techniques- Interpolation-Numerical differentiation-curve fitting and smoothing. Sinusoidal wave based algorithms -First and second derivative method -two and three sample technique .Walsh function analysis- least squares based methods-differential equation based techniques -Travelling wave protective schemes. FIR based algorithms-Least square curve fitting algorithm.
UNIT IV DIGITAL PROTECTION TECHNIQUES
Transformer protection- -Fourier based algorithm-basic hardware of microprocessor based transformer protection .Digital line differential scheme. Measurement algorithms for digital protection – power-voltage -current -Impedance -phase shift.-short window Wavelet based fault identification techniques-sliding window-FWHT-signal analysis and synthesis-AC/DC cable fault location-intrinsic and extrinsic fault-harmonic filtering in fault analysis
UNIT V DIGITAL PROTECTIVE RELAYS
Decision making in protective relays- Deterministic Decision Making – Statistical Hypotheses Testing – Decision Making with Multiple Criteria – Adaptive Decision Schemes .Elements of Fuzzy Logic in Protective Relays -Fuzzy Sets and Fuzzy Numbers -Boolean Versus Fuzzy Logic -Fuzzy Reasoning – Fuzzy Logic Applications for Protection and Control.
TOTAL: 45 PERIODS
COURSE OUTCOMES
CO1: The students will be able to apply DSP techniques for digital protection.
CO2: The students will be capable of decision making algorithm suitable for digital relaying applications.
CO3: The students will be able to employ FIR based algorithms for digital relaying.
CO4: The students will be able to do transformer protection using digital techniques.
CO5: The students will be able to perform coordinated operation of relays for specific purposes.
REFERENCES
1. J.L. Blackburn, Protective Relaying: Principles and Applications, Marcel Dekker, New York, 1987.
2. A.G. Phadke and J.S. Thorp, Computer Relaying for Power Systems, John Wiley & Sons, New York, 1988.
3. J.G. Proakis and D.G. Manolakis, ‘Digital Signal Processing Principles, Algorithms
4. Y.G. Paithankar and S.R Bhide, “Fundamentals of Power System Protection”,PHI Learning; 2nd edition edition (July 30, 2013)