FYP - Economic Dispatch with Security Constraints

Back To Work!!

2006-07-03T08:52:00.000-07:00

Findings of the day!

http://www.amsuper.com/products/library/001-PowerTranCapAS.pdf#search='thermal%20limit%20transmission%20line'

Proposal "OVER"-Draft

2006-04-10T09:10:00.000-07:00

Important notes to take note!!!!!

Generator Unit Commitment
Load Shedding
Corrective measures
Compensators - shunt & series compensators or combined
Pre & Post Contingencies
Thermal limitations
Formulate EXPRESSION FOR THE ABOVE!!!
FACTS device - voltage control
Write basic manual on MATLAB
TIMELINE

Overall Operation Summary

Given load demand from forecast assumed to be given. Then estimate active-power of generators schedule?? (Or is schedule given??)
Form Y-bus matrix and nodal voltages.

Use Newton-Raphson Method.
Form Jacobian matrix.
Calculate nodal currents using I = YV
Form residuals for all nodes & assemble vector of residuals f(x)
Check whether residual values exceed tolerance pre-set
If it does exceed, enter Jacobian matrix element values to give J(x)
Solve for real and imaginary parts of nodal voltages in vector x using equation 2.59 (from “Computer Applications in Power”) from the solution vector x form the vector of complex nodal voltages V.
Iterate process until all residual values do not exceed pre-set tolerance.
Upon convergence, NR method will determine the nodal voltages in terms of x vector.
Active and reactive power flows can be evaluated directly from nodal voltages and branch parameters using the network branch equivalent circuit.

OPF with security constraints
Specify equality and inequality constraints.
Take into account network system losses.

Minimisation procedure

Assemble vector u, the active-powers of generators excluding that of the generation at the slack node.’
Assemble nodal voltage vector, x
Form composite vector y from u and x. Form f(y).
Mismatch in power at network nodes
Form residual vector g(y)=0 (this is the equality constraint)
Minimise objective function f(y) subject to g(y)Obtain Jacobian matrix of g(y) with respect to y
Obtain necessary conditions for a minimum
Use NR method to solve for these conditions.
Taking into account constraints, we solve for y.

Produce timeline
Propose different security constraints
Review overall procedure of OPF

Met Prof. Tam

2006-04-06T09:11:00.000-07:00

Met with Tam to discuss about proposal.
Found out more about security constraints and contingencies
Drafted intro of proposal
Read up on Wholesale energy market and deregulation

Sites visted____________________________

Articles from__________________________

US DOE

Values of Economic Dispatch

http://www.electricity.doe.gov/document/value.pdf

___________________________________

Gov of WA - Office of Energy

Title: WEM Design Summary

http://www.eriu.energy.wa.gov.au/cproot/728/4073/Market%20Summary%206%20October%202004%20-%20clean.pdf

___________________________________

Travelling is my passion as it opens new vistas permitting a vast array of experiences and occasions to think out of the box

Drafting of proposal

2006-04-05T08:29:00.000-07:00

Began drafting of proposal.
Consulted Liem on the types of contingencies and constraints.
Brainstorm on proposal.
Did researching on the net about power deregulation and opitmal power flow.

TIMELINE

April:

Submit proposal

May:

Run simulations and gather results

June:

Run more sims

July:
Compile results

Aug:

1st Draft of thesis

Sept:

2nd Draft of thesis

Oct:

Compilation of thesis for submission