20 - Optimal Capacitor PlaceOptimal Capacitor Placement - Pdfment
20 - Optimal Capacitor PlaceOptimal Capacitor Placement - Pdfment
20 - Optimal Capacitor PlaceOptimal Capacitor Placement - Pdfment
Placement
Slide 2
Purposes of Shunt
C
Capacitor
it A
Applications
li ti
Var support Primary benefit for
transmission systems and secondary benefit
for distribution systems
Voltage control Primary benefit for both
transmission and distribution systems
System capacity increase Secondary
benefit for transmission systems and primary
benefit for distribution systems
1996-2010 Operation Technology, Inc. Workshop Notes: Optimal Capacitor Placement
Slide 3
Purposes of Shunt
C
Capacitor
it A
Applications
li ti
System power loss reduction Secondary
benefit for transmission systems and primary
benefit for distribution systems
Billing charge reduction Not applied to
transmission systems but a primary benefit
f
for distribution systems
Slide 4
Slide 5
Slide 6
Optimal Capacitor
Pl
Placement
t in
i ETAP
Genetic Algorithm - Use Genetic method to
find optimal (sub optimal) solution
Expert System Initialization- Use power
system knowledge to find a good initial
solution
Slide 7
Genetic Algorithm
An optimization technique based on the
theory of nature selection
An iterative procedure that maintains a
constant-size population of candidate
solutions
Coding, initialization
initialization, fitness evaluation
evaluation,
Coding
selection, crossover, mutation
Slide 8
Slide 9
Slide 10
Slide 11
Display Results
LF results for maximum loads
New capacitor locations and sizes
Slide 12
Plot Results
Loss reduction savings during the planning
period
Capacitor operation cost during the planning
period
Profit during the planning period
Slide 13
Report Results
Load Flow related reports
Capacitor locations and sizes
Load flow results for maximum, average and
minimum loads
Branch capacity release
Slide 14
Example
Run NR Load Flow and look at bus voltages
(critical under voltage is set to 95% and
marginal under voltage is set to 98%)
Switch to OCP mode and look at the study
case settings
Run OCP and look at the voltage
improvements
Slide 15