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Openziziaougtijlnksslg asked 7 months ago • Power System Analysis
191 views0 answers0 votes
Why to select IEEE projects as a electrical engineer?
OpenCS Electrical And Electronics asked 8 months ago • Power System Analysis
133 views0 answers0 votes
A 400 V, 3-phase cage induction machine has a rated current of 30 A and a full-load power factor of 0.86 lagging. The machine is to be run as a self-excited generator.
OpenCS Electrical And Electronics asked 1 year ago • Power System Analysis
264 views0 answers0 votes
Electric danger symbol Images, Stock Photos & Vectors
Openbeyexiv127 asked 2 years ago • Power System Analysis
312 views0 answers0 votes
In large turbines which gearbox is used?
OpenRajasri Mundrathi asked 3 years ago • Power System Analysis
213 views0 answers0 votes
18)What are the second stage of wind energy conversion systems?
OpenRajasri Mundrathi asked 3 years ago • Power System Analysis
255 views0 answers0 votes
Undefined function or variable pwm in matlab simulink?
OpenAnonymous asked 3 years ago • Power System Analysis
4038 views0 answers0 votes
UPQC (Power Quality) Model Design In MATLAB Simulink Using PI Controller?
OpenAnonymous asked 3 years ago • Power System Analysis
242 views0 answers0 votes
UPQC (Power Quality) Model Design In MATLAB Simulink Using Fuzzy Logic?
OpenAnonymous asked 3 years ago • Power System Analysis
322 views0 answers0 votes
What is the differences between UPFC and UPQC?
OpenAnonymous asked 3 years ago • Power System Analysis
2324 views1 answers0 votes
Why reactors are used in power system?
OpenCS Electrical And Electronics asked 3 years ago • Power System Analysis
375 views1 answers0 votes
What is a ABCD parameter and why it is calculated?
OpenAnonymous asked 3 years ago • Power System Analysis
176 views0 answers0 votes
What is swing equation in power system?
OpenCS Electrical And Electronics asked 3 years ago • Power System Analysis
232 views0 answers0 votes
What is Ybus and Zbus in power system?
Openchetan shidling asked 3 years ago • Power System Analysis
242 views0 answers0 votes
Devices used to control the voltage?
OpenCS Electrical And Electronics asked 3 years ago • Power System Analysis
280 views1 answers0 votes
Necessity of voltage control?
OpenChetan Shidling asked 3 years ago • Power System Analysis
306 views1 answers0 votes
Deduce the dynamic model of a two-area power system. Hence deduce a general expression for steady-changes in frequency, generation and tie-line powers for a specified load demand changes.
Openchetan shidling asked 3 years ago • Power System Analysis
178 views0 answers0 votes
In the power system shown, the series line impedances are marked on the diagram and the charging admittances are negligible. Buses 1 and 2 are load buses with known real and reactive power injections as marked on the diagram. Bus 1 is slack with voltage (1.06+j0) pu. Determine the voltages at PQ buses at the end of first iteration using G-S method.
Openchetan shidling asked 3 years ago • Power System Analysis
214 views0 answers0 votes
Stating all the assumptions made, develop FDLF model and give the computational flow chart. Also list the salient features of FDLF.
Openchetan shidling asked 3 years ago • Power System Analysis
241 views0 answers0 votes
With usual notation, derive the Gauss and GS load flow models and give the flow diagram. Also explain how to handle PV bus in these methods
Openchetan shidling asked 3 years ago • Power System Analysis
212 views0 answers0 votes
Explain the classification of buses for load flow studies giving the significance of each. With usual notation, deduce the pi equivalent model of a fixed off-nominal tap ratio transformer for load flow studies
Openchetan shidling asked 3 years ago • Power System Analysis
174 views0 answers0 votes
What is meant by load flow? Briefly explain the properties required for a good load flow solution method
Openchetan shidling asked 3 years ago • Power System Analysis
176 views0 answers0 votes
Two power system areas A and B are interconnected and have the following characteristics: Area A: Regulation =4% rated capacity=400 MW, Area B: Regulation =6% rated capacity=500 MW Determine the steady-state frequency deviation, generation changes and tie-line power change following a increase of load demand by 50 MW in area B. Assume rated frequency as 50Hz. If another area C with Regulation =3% rated capacity=600 MW is also interconnected, determine the new values of steady-changes. Hence analyze the effect of interconnection operation on frequency changes following load disturbances
Openchetan shidling asked 3 years ago • Power System Analysis
297 views0 answers0 votes
Three thermal generating units are operating in parallel at 50 Hz sharing 750 MW equally and have following rated capacity (Pr) and speed regulation (R) values. Unit 1: Pr=500MW, R=6%; Unit 2: Pr=600MW, R=2.4%; Unit 3: Pr=500Mw, R=4%. Analyze the following situations and comment on the results by comparing the operating frequency and load sharing between the units when supplying a total load demand of (i) 600MW (ii) 1000MW. Also determine the minimum total load demand and the corresponding operating frequency at which the entire load is supplied by only two units. Which unit will run idle under this condition? Assume free governor operation and rated frequency of 50 Hz.
Openchetan shidling asked 3 years ago • Power System Analysis
307 views0 answers0 votes
Deduce the dynamic model of a two-area power system. Hence deduce a general expression for steady-changes in frequency, generation and tie-line powers for a specied load demand changes.
Openchetan shidling asked 3 years ago • Power System Analysis
192 views0 answers0 votes
Using the block diagram of the dynamic model of isolated power system, derive expressions for steady-state frequency deviation and change in generation for change in load demand assuming free-governor operation
Openchetan shidling asked 3 years ago • Power System Analysis
208 views0 answers0 votes
With the help of a neat sketch, explain the operation of a speed governor of a turbine. Also give the block schematic of load frequency control model of an isolated area
Openchetan shidling asked 3 years ago • Power System Analysis
197 views0 answers0 votes
Two power system areas are interconnected and have following regulation (R) and rated power (Pr) values: Area1: R =5%, Pr =1000 MW and Area 2: R =6%, Pr =800 MW. Determine the steady changes in frequency, tie-line powers and generations when the load demand in area-2 increases by 100 MW. Also analyze the effect of connecting another area-3 (R =4%, Pr =500 MW) on the steady changes in frequency, generation and tie-line powers following the same load changes as above. Comment on the results obtained. Assume free governor operation and rated frequency of 50 Hz.
Openchetan shidling asked 3 years ago • Power System Analysis
292 views0 answers0 votes
What is meant by load-flow? Briefly explain the desirable properties of a good load-flow model. With usual notation, deduce the π model of a fixed off-nominal tap ratio transformer for load flow studies.
Openchetan shidling asked 3 years ago • Power System Analysis
196 views0 answers0 votes
Three thermal generating units are operating in parallel at 50 Hz sharing 600 MW load equally and have following rated capacity (Pr) and speed regulation (R) values: Unit-1: Pr=450 MW, R=5.4% Unit-2: Pr=400 MW, R=1.6%; Unit-3: Pr=500 MW,R=4%; Analyze the following new loading situations by comparing the operating frequency and load sharing when supplying a total load demand of (i) 400 MW (ii) 700 MW. Assume free governor operation and rated frequency of 50 Hz.
Openchetan shidling asked 3 years ago • Power System Analysis
207 views0 answers0 votes
With usual notation, deduce G-S load flow model for power systems with no PV buses and give the corresponding computational flow-chart. Also give salient features of G-S load flow model.
Openchetan shidling asked 3 years ago • Power System Analysis
186 views0 answers0 votes
In the power system shown, bus 1 is slack with (1.05+j0) pu voltage while buses 2 and 3 are load buses with known real and reactive power injections as indicated on the diagram. With (1+j0) pu initial voltage at load buses, determine its voltage at the end of first iteration using G-S load flow model. Per-unit series impedance (neglecting resistance) of lines is marked on the diagram and neglect line charging.
Openchetan shidling asked 3 years ago • Power System Analysis
281 views0 answers0 votes
With a neat sketch, briefly explain the turbine speed governing system and give the dynamic model of LFC for an isolated power system area. Hence deduce an expression for steady-state frequency deviation Δf
Openchetan shidling asked 3 years ago • Power System Analysis
245 views0 answers0 votes
What is a Ybus
Openchetan shidling asked 3 years ago • Power System Analysis
168 views0 answers0 votes
what is a Ybus?
Openchetan shidling asked 3 years ago • Power System Analysis
193 views0 answers0 votes
Difference between Zbus and Ybus in power system?
Openchetan shidling asked 3 years ago • Power System Analysis
3435 views0 answers-1 votes
A lossless power system consists of three thermal plants with following fuel cost models (inRs/Hr): F1=0.01P12+40P1+1500;F2=0.0125P22+38P2+2000; F3=0.008P32+36P3+1000. Analyze the following situations and comment on the results by comparing the cost of received power and total fuel cost when supplying a total load demand of 1200 MW. (i) Optimal load dispatch assuming no generation constraints (ii) Optimal load dispatch with generation constraints 30≤P1≤550 MW; 10≤P2≤600 MW; 20≤P3≤575 MW
Openchetan shidling asked 3 years ago • Power System Analysis
207 views0 answers0 votes
Deduce expressions to develop the network model ZBUS using building algorithm for the addition of an uncoupled network element as a BRANCH
Openchetan shidling asked 3 years ago • Power System Analysis
224 views0 answers0 votes
Determine ZBUS with node 0 as reference for the network shown using building algorithm. Add the elements in the sequence 0-1, 0-2, 1-2 and 2-3. Per-unit sequence impedance values are marked on the diagram and neglect mutual coupling.
Openchetan shidling asked 3 years ago • Power System Analysis
259 views0 answers0 votes
Define incremental fuel cost. Deduce the coordination equation for optimal load dispatch in a lossless system with k-thermal plants and hence arrive at a generalized formula for cost of received power (λ). Also explain the step by step procedure to handle inequality constraints
Openchetan shidling asked 3 years ago • Power System Analysis
200 views0 answers0 votes
The fuel cost models (in Rs/Hr) of the thermal plants of system shown are: F1=0.025P12+35P1+1500 and F2=0.03P22+34P2+2000. When certain load demand is optimally dispatched, it was found that the optimal generation of plant-1 is 216.115 MW and power loss is 23.3528 MW. Determine the optimal generation of plant 2, cost of received power, total load demand, total fuel cost and penalty factors. Also analyze the effect of not coordinating the transmission loss on total fuel cost and transmission loss when optimally dispatching the same total load demand found above and comment on the results.
Openchetan shidling asked 3 years ago • Power System Analysis
314 views0 answers0 votes
With usual notation, derive an expression for YBUS by singular transformation. The bus admittance matrix of a 3-Bus system with ground node as reference is given below. Assuming no mutual coupling, obtain the power system network indicating the self-impedance of elements.
Openchetan shidling asked 3 years ago • Power System Analysis
303 views0 answers0 votes
What is power system analysis?
OpenCS Electrical And Electronics asked 4 years ago • Power System Analysis
313 views0 answers0 votes

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