IEEE Power & Energy Magazine - May/June 2019 - 21

may/june 2019

dc faults. Different system faultclearing strategies are provided,
building on available technologies. The authors also discuss
protection algorithms in development, with some using local
measurements and others requiring communication.

✔ "Adopting Circuit Breakers for

high-Voltage dc Networks" exhibits the current state of the art
in hVdc circuit breakers. DC
circuit breakers have long been
a challenge, especially ones that
(continued on p. 114)

Power System Reliability
A new module to analyze the reliability of electrical
power distribution systems and calculate the
expected availability of loads.

· Auto-import

reliability data or specify failure
rate, downtime, and cost.

· One-click

analysis of the entire system or a
specific load branch.

· Identify weak points and factor cost of power
interruption in future design.
Build Model

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

PANEL

AutoImport
Data

100

0.08

90

80

0.07

Run
Evaluation

70
0.06

PANEL

PANEL

0.09

Component
Type

Name

Failure
Contirbution (%)

Failure Rate
(per year)

Avg Repair
Time (hrs)

Unavailability
(hrs/year)

Uptime (%)

Bus

MAIN BUS A

12.4003

0.00949048

7.289839

0.06918407

0.9999921

Bus
Bus
Bus
Breaker
Branch
Branch
Breaker
Breaker
Breaker
Breaker
Branch
Branch

MAIN BUS B
MECH BUS A
MECH BUS B
BL-7
C-1_A
C-1_B
BL-6
BL-6_A
BL-17
BL-17_A
C-1_C
C-1

12.4003
12.4001
12.4001
5.76386
5.30718
5.30718
4.12983
4.12983
2.70288
2.70288
2.65359
2.12287

0.00949048
0.009490247
0.009490247
0.00085777
0.00282
0.00282
0.002400276
0.002400276
0.0026
0.0026
0.00141
0.001128

7.289839
7.2899071
7.2899071
37.490168
10.5
10.5
9.599442
9.599442
5.8
5.8
10.5
10.5

0.06918407
0.069183016
0.069183016
0.032157953
0.02961
0.02961
0.023041312
0.023041312
0.01508
0.01508
0.014805
0.011844

0.9999921
0.9999921
0.9999921
0.99999633
0.99999662
0.99999662
0.99999737
0.99999737
0.99999828
0.99999828
0.99999831
0.99999865

Breaker
Breaker
Breaker
Breaker

BL-10
BL-10_A
BL-8
BL-8_A

1.35144
1.35144
1.35144
1.35144

0.0013
0.0013
0.0013
0.0013

5.8
5.8
5.8
5.8

0.00754
0.00754
0.00754
0.00754

0.99999914
0.99999914
0.99999914
0.99999914

Breaker
Breaker
Breaker
Breaker
Breaker
Breaker
Breaker
Breaker

BL-9
BL-9_A
BL-14
BL-14_A
BL-15
BL-15_A
BL-7_A
BL-16

1.35144
1.35144
0.991175
0.991175
0.991175
0.991175
0.991175
0.496484

0.0013
0.0013
0.002765
0.002765
0.002765
0.002765
0.002765
0.001385

5.8
5.8
2
2
2
2
2
2

0.00754
0.00754
0.00553
0.00553
0.00553
0.00553
0.00553
0.00277

0.99999914
0.99999914
0.99999937
0.99999937
0.99999937
0.99999937
0.99999937
0.99999968

Breaker
Breaker
Breaker
Breaker

BL-16_A
BL-16_B
BL-16_C
BL-2

0.496484
0.496484
0.496484
0.0833447

0.001385
0.001385
0.001385
0.00093

2
2
2
0.5

0.00277
0.00277
0.00277
0.000465

0.99999968
0.99999968
0.99999968
0.99999995

Breaker

BL-2_A

0.0833447

0.00093

0.5

0.000465

0.99999995

60
0.05
50
0.04
40
0.03

Cumulative Percent

PANEL

Export and
View Results

Unavailability (hrs/year)

emphasizes the importance of
using electromagnetic transient
si mulation tools for systems
operating hVdc systems, especially in cases where the controls of different systems can
interact. The authors discuss
both the use of offline simulation tools for some classes of
studies and real-time hardwarein-the-loop simulations (hiLss)
by using an exact replica of the
controller applied in the converter station for other classes of
studies. The hiLs studies are
used to test controller firmware
updates, develop specifications
for new equipment, and train operators and maintenance personnel, among other tasks.
✔ "expanding Power systems in the
Republic of Korea" discusses the
types of studies required during
feasibility studies for installing
hVdc projects with complicated
interactions between converter controls and other control devices
or special protection schemes in
a power system. The authors describe a combined LCC-hVdc
and flexible alternating current
transmission systems (fACTs)
transmission project intended to
accomplish several objectives,
starting with higher-bulk powertransfer limits. The authors also
detail a study about operating
a VsC hVdc line in coordination with existing LCC hVdc facilities. The article discusses the
strengths and weaknesses of using transient stability and electromagnetic transient studies at this
stage of project development. The
authors follow up by combining
the tools in a hybrid simulator to
take advantage of the strengths of
each simulation class.
✔ "Designing for high-Voltage dc
Grid Protection" describes how the
protection of large-scale hVdc
grids will differ from protection
for ac grids. The functional requirements are presented, including technologies for clearing

30
0.02

20

0.01

10

0.00

M

ain

Bu

s

Bu

s2

Bu

s3

Bu

sS

W

BL

-1

C_

1-A

C_

1-B

BL

-6

BL

-4

0

Minimal additional work is required to perform a
reliability assessment on your power system once
the one-line diagram has been created.
Explore more online and request a free demo copy at:

www.EasyPower.com/Reliability
®
Power made easy.

ieee power & energy magazine

21


http://www.EasyPower.com/Reliability

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
IEEE Power & Energy Magazine - May/June 2019 - Contents
IEEE Power & Energy Magazine - May/June 2019 - 2
IEEE Power & Energy Magazine - May/June 2019 - 3
IEEE Power & Energy Magazine - May/June 2019 - 4
IEEE Power & Energy Magazine - May/June 2019 - 5
IEEE Power & Energy Magazine - May/June 2019 - 6
IEEE Power & Energy Magazine - May/June 2019 - 7
IEEE Power & Energy Magazine - May/June 2019 - 8
IEEE Power & Energy Magazine - May/June 2019 - 9
IEEE Power & Energy Magazine - May/June 2019 - 10
IEEE Power & Energy Magazine - May/June 2019 - 11
IEEE Power & Energy Magazine - May/June 2019 - 12
IEEE Power & Energy Magazine - May/June 2019 - 13
IEEE Power & Energy Magazine - May/June 2019 - 14
IEEE Power & Energy Magazine - May/June 2019 - 15
IEEE Power & Energy Magazine - May/June 2019 - 16
IEEE Power & Energy Magazine - May/June 2019 - 17
IEEE Power & Energy Magazine - May/June 2019 - 18
IEEE Power & Energy Magazine - May/June 2019 - 19
IEEE Power & Energy Magazine - May/June 2019 - 20
IEEE Power & Energy Magazine - May/June 2019 - 21
IEEE Power & Energy Magazine - May/June 2019 - 22
IEEE Power & Energy Magazine - May/June 2019 - 23
IEEE Power & Energy Magazine - May/June 2019 - 24
IEEE Power & Energy Magazine - May/June 2019 - 25
IEEE Power & Energy Magazine - May/June 2019 - 26
IEEE Power & Energy Magazine - May/June 2019 - 27
IEEE Power & Energy Magazine - May/June 2019 - 28
IEEE Power & Energy Magazine - May/June 2019 - 29
IEEE Power & Energy Magazine - May/June 2019 - 30
IEEE Power & Energy Magazine - May/June 2019 - 31
IEEE Power & Energy Magazine - May/June 2019 - 32
IEEE Power & Energy Magazine - May/June 2019 - 33
IEEE Power & Energy Magazine - May/June 2019 - 34
IEEE Power & Energy Magazine - May/June 2019 - 35
IEEE Power & Energy Magazine - May/June 2019 - 36
IEEE Power & Energy Magazine - May/June 2019 - 37
IEEE Power & Energy Magazine - May/June 2019 - 38
IEEE Power & Energy Magazine - May/June 2019 - 39
IEEE Power & Energy Magazine - May/June 2019 - 40
IEEE Power & Energy Magazine - May/June 2019 - 41
IEEE Power & Energy Magazine - May/June 2019 - 42
IEEE Power & Energy Magazine - May/June 2019 - 43
IEEE Power & Energy Magazine - May/June 2019 - 44
IEEE Power & Energy Magazine - May/June 2019 - 45
IEEE Power & Energy Magazine - May/June 2019 - 46
IEEE Power & Energy Magazine - May/June 2019 - 47
IEEE Power & Energy Magazine - May/June 2019 - 48
IEEE Power & Energy Magazine - May/June 2019 - 49
IEEE Power & Energy Magazine - May/June 2019 - 50
IEEE Power & Energy Magazine - May/June 2019 - 51
IEEE Power & Energy Magazine - May/June 2019 - 52
IEEE Power & Energy Magazine - May/June 2019 - 53
IEEE Power & Energy Magazine - May/June 2019 - 54
IEEE Power & Energy Magazine - May/June 2019 - 55
IEEE Power & Energy Magazine - May/June 2019 - 56
IEEE Power & Energy Magazine - May/June 2019 - 57
IEEE Power & Energy Magazine - May/June 2019 - 58
IEEE Power & Energy Magazine - May/June 2019 - 59
IEEE Power & Energy Magazine - May/June 2019 - 60
IEEE Power & Energy Magazine - May/June 2019 - 61
IEEE Power & Energy Magazine - May/June 2019 - 62
IEEE Power & Energy Magazine - May/June 2019 - 63
IEEE Power & Energy Magazine - May/June 2019 - 64
IEEE Power & Energy Magazine - May/June 2019 - 65
IEEE Power & Energy Magazine - May/June 2019 - 66
IEEE Power & Energy Magazine - May/June 2019 - 67
IEEE Power & Energy Magazine - May/June 2019 - 68
IEEE Power & Energy Magazine - May/June 2019 - 69
IEEE Power & Energy Magazine - May/June 2019 - 70
IEEE Power & Energy Magazine - May/June 2019 - 71
IEEE Power & Energy Magazine - May/June 2019 - 72
IEEE Power & Energy Magazine - May/June 2019 - 73
IEEE Power & Energy Magazine - May/June 2019 - 74
IEEE Power & Energy Magazine - May/June 2019 - 75
IEEE Power & Energy Magazine - May/June 2019 - 76
IEEE Power & Energy Magazine - May/June 2019 - 77
IEEE Power & Energy Magazine - May/June 2019 - 78
IEEE Power & Energy Magazine - May/June 2019 - 79
IEEE Power & Energy Magazine - May/June 2019 - 80
IEEE Power & Energy Magazine - May/June 2019 - 81
IEEE Power & Energy Magazine - May/June 2019 - 82
IEEE Power & Energy Magazine - May/June 2019 - 83
IEEE Power & Energy Magazine - May/June 2019 - 84
IEEE Power & Energy Magazine - May/June 2019 - 85
IEEE Power & Energy Magazine - May/June 2019 - 86
IEEE Power & Energy Magazine - May/June 2019 - 87
IEEE Power & Energy Magazine - May/June 2019 - 88
IEEE Power & Energy Magazine - May/June 2019 - 89
IEEE Power & Energy Magazine - May/June 2019 - 90
IEEE Power & Energy Magazine - May/June 2019 - 91
IEEE Power & Energy Magazine - May/June 2019 - 92
IEEE Power & Energy Magazine - May/June 2019 - 93
IEEE Power & Energy Magazine - May/June 2019 - 94
IEEE Power & Energy Magazine - May/June 2019 - 95
IEEE Power & Energy Magazine - May/June 2019 - 96
IEEE Power & Energy Magazine - May/June 2019 - 97
IEEE Power & Energy Magazine - May/June 2019 - 98
IEEE Power & Energy Magazine - May/June 2019 - 99
IEEE Power & Energy Magazine - May/June 2019 - 100
IEEE Power & Energy Magazine - May/June 2019 - 101
IEEE Power & Energy Magazine - May/June 2019 - 102
IEEE Power & Energy Magazine - May/June 2019 - 103
IEEE Power & Energy Magazine - May/June 2019 - 104
IEEE Power & Energy Magazine - May/June 2019 - 105
IEEE Power & Energy Magazine - May/June 2019 - 106
IEEE Power & Energy Magazine - May/June 2019 - 107
IEEE Power & Energy Magazine - May/June 2019 - 108
IEEE Power & Energy Magazine - May/June 2019 - 109
IEEE Power & Energy Magazine - May/June 2019 - 110
IEEE Power & Energy Magazine - May/June 2019 - 111
IEEE Power & Energy Magazine - May/June 2019 - 112
IEEE Power & Energy Magazine - May/June 2019 - 113
IEEE Power & Energy Magazine - May/June 2019 - 114
IEEE Power & Energy Magazine - May/June 2019 - 115
IEEE Power & Energy Magazine - May/June 2019 - 116
IEEE Power & Energy Magazine - May/June 2019 - 117
IEEE Power & Energy Magazine - May/June 2019 - 118
IEEE Power & Energy Magazine - May/June 2019 - 119
IEEE Power & Energy Magazine - May/June 2019 - 120
IEEE Power & Energy Magazine - May/June 2019 - Cover3
IEEE Power & Energy Magazine - May/June 2019 - Cover4
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091020
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070820
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050620
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030420
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010220
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111219
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091019
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070819
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050619
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030419
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010219
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111218
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091018
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070818
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050618
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030418
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010218
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111217
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091017
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070817
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050617
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030417
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010217
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111216
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091016
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070816
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050616
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030416
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010216
https://www.nxtbook.com/nxtbooks/ieee/powerenergy_010216
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111215
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091015
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070815
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050615
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030415
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010215
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111214
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091014
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070814
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050614
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030414
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010214
https://www.nxtbookmedia.com