Power System Analysis Quiz

What is the main purpose of load flow analysis in power system analysis?

• To study the transient behavior of the system

• To design the expansion stages of the system

• To control economic schedule of the system

• To compute precise steady-state voltages and power flows

What is a load bus also known as in power system analysis?

• PQ bus

• Generator bus

• PV bus

• Slack bus

What type of bus is a voltage controlled bus in a power system network?

• Generator bus

• Load bus

• Slack bus

• PV bus

What is the relationship between node current and voltage in a linear network described by?

• I = YV

• I = Y/V

• I = VY

• I = V/Y

Which iterative technique is used in load flow analysis to solve nonlinear algebraic equations?

• Newton–Raphson method

• Fast decoupled method

• Bisection method

• Gauss–Seidel method

What is the purpose of the acceleration factor 'a' in the Gauss–Seidel method?

• To calculate power losses

• To decrease convergence

• To increase convergence

• To determine reactive power

What is the complex power injected by the source into the ith bus of a power system?

• P - jQV

• P - QV

• SP + jQ

• P + jQV

What is the main limitation of the static load flow equations?

• They are linear equations

• They are of high complexity

• They require exact analytical solutions

• They have slow convergence

What is the voltage at bus 2 at the end of the first iteration?

• 1.04 + j0.020

• 0.91984 - j0.01744

• 1.0432 - j0.4985

• 1.0399 + j0.009

What is the reactive power limit on generator 2 in Example 2.4?

• 0 MVAR < QG2 < 0.3 p.u.

• 0.2 p.u. < QG2 < 0.3 p.u.

• 0.1 p.u. < QG2 < 0.4 p.u.

• 0.2 p.u. < QG2 < 0.5 p.u.