IEEE Power & Energy Magazine - May/June 2019 - 70

Current Updates and Future Plans
Using the HS

simulators show the same results for dc voltage, current, and
hVdc power after a contingency.
furthermore, the performance of the hs was validated
using the manufacturers' data of the hVdc system and the
stAtCom that is currently in the middle of commissioning
in the western side of the republic of korea. on the basis of
2019 korean power system data, the hVdc and peripheral com-
ponents, such as generators and stAtCom, are modeled with
the rts, and the rest of the korean power system is modeled
with the tsA tool. the cases for an inverter-side contingency of
the hVdc and a peripheral 765-kV double-circuit contingency
were established for hs validation, as shown in figure 11. the
simulations compared favorably.

to ensure the validity and applicability of the developed tool,
the project team conducted various studies to compare the
results of simulation using the hs with those of pure rts stud-
ies. fundamental functionalities, such as real-time communi-
cation and power flow synchronization, of the developed
hs have been tested on example test cases, such as the ieee 39
bus systems, for ensuring a successful connection between the
two different tools.
figure 10 shows the performance of full rts and the hs
on the ieee 39 bus system modified with an hVdc system.
when there is a three-phase fault on the inverter side, both

Inverter Bus A Phase Voltage

V (kV)

400

Full RTS
HS

0
-400
0.35

0.4

0.45

V (kV)

0.55

0.5

0.55

0.5

0.55

Inverter Bus B Phase Voltage

400
0
-400
0.35

0.4

0.45
Inverter Bus C Phase Voltage

400
V (kV)

0.5

0
-400
0.35

0.4

0.45
Time (s)
(a)

1.2

VDC (p.u.)

1
0.8
0.6
0.4
Full RTS
HS

0.2
0

0

0.2

0.4

0.6

0.8

1
1.2
Time (s)
(b)

1.4

1.6

1.8

2

figure 12. The simulation result comparison between the full RTS and the HS under (a) single-phase and (b) three-phase
faults on the inverter side of the HVdc. The results are very similar. p.u.: per unit.
70

ieee power & energy magazine

may/june 2019



IEEE Power & Energy Magazine - May/June 2019

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - May/June 2019

Contents
IEEE Power & Energy Magazine - May/June 2019 - Cover1
IEEE Power & Energy Magazine - May/June 2019 - Cover2
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