1Buchholz DE Session 4 – Block 4.4 – Paper 4.59

Barcelona 12-15 May 2003

Before restructuring

Restructured, Power factor control

Voltage course, Net3 ( Outage line 1) )

-5,00

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

0 5 10 15 20

Time/ h

V/V

r,%

1

Var.1Var.2Var.3

MVDC Coupler

Network parts

Remote network

part

Net3 Neighbour network ~

~

~

Restructured, Voltage control

Converter connected DG –

Synchronisation after fault!

Automated sequences required!

Synchronous DG – stable continuation

Fault simulation with DG

wVoltage course Net3 (worst case)

Results of 20 kV network restructuring:Results of 20 kV network restructuring: Dispersed generation (DG) and MVDC CouplerDispersed generation (DG) and MVDC Coupler

Outage time Net 3

•Before restructuring 1,2 h/a

•Restructured 0,24 h/a

•Restr. & automated 0,03 h/a

DG