Joint 9th Regional Conference and

Study Committee B4 International Colloquium

1 – 5 October 2019

Misty Hills Hotel, Muldersdrift

www.cigresa.org.za

Sponsors

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Table of Contents

Sponsors

Media Partners

Message from CIGRE Southern Africa Chair

Message from CIGRE President

Message from CIGRE SC B4 Chair

Message from CIGRE SANC Conference Committee

Programme Summary

Tutorial Summary

Technical Program

Social Events

Technical Tours

Wifi

Exhibition

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Message from the CIGRE SA Chairman

The National Committee of CIGRE Southern Africa is honoured to host its 9th Regional conference at the picturesque Misty Hills venue outside Johannesburg.

This event will be hosted together with the SC B4 International Colloquium on HVDC and FACTS

for Regional Interconnections and Renewable Energy Integration. This year’s theme is "Sustain-

able Integration of Distributed Energy Resources for Power System Development". The program

includes one day of tutorials and two days of discussions, paper presentation and an exhibition.

There is also a day of technical tours following the conference.

This event presents an opportunity to showcase new research, present new experiences with

emerging technologies, highlight regional challenges (and solutions to those challenges) and

network with industry peers. We welcome delegates and exhibitors from the region and from

around the globe to attend this prestigious event.

I encourage delegates to join in discussions, debates and the sharing of ideas and to ask as many

questions as possible – during presentations or over lunch or tea. There will also be many oppor-

tunities to network during various other events such as the cocktail function and conference

dinner.

I warmly welcome you!

4

Prince Moyo

Message from the CIGRE President

It gives me great pleasure to welcome you to the 2019 CIGRE conference in Johannesburg, South

Africa. This conference was first held in Swaziland in the early 1990’s. It was initially held every

4 years and later every 2 years. This is the ninth CIGRE conference in South Africa.

This conference is enhanced by the support and visit of Study Committee B4 dealing with power

electronics and DC systems at all voltages. This is very pertinent today with the advent of solar

and wind generation requiring inverters to link to the grid at all voltages. The cost of HVDC

systems has also been reducing in recent times with voltage sourced converters now capable of

transferring 2000MW. This conference, with the theme “Sustainable integration of distributed

energy resources for power system development”, covers the essence of issues facing the indus-

try at present. In addition, it highlights the fact that CIGRE is indeed an “end to end” association

covering all voltage levels from Low to Ultra High Voltage.

One of the main benefits of this symposium is that it with links to SC B4 and associated working

groups. This provides an excellent opportunity to meet with international experts and discuss

issues that are pertinent to you.

As you no doubt realize, a CIGRE conference such as this offers far more for delegates than the

average conference presenting papers. With the CIGRE experts attending the conference, be

assured that there is someone that has solved the problems you have, is working on the problem,

or is aware of others working on the problem. I would urge you as delegates to engage with fellow

CIGRE colleagues and obtain the maximum benefit from the Symposium.

I wish you a very successful and fruitful time in my beautiful country

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Dr Rob Stephen

Message from the CIGRE SC B4 Chair

The global electric power system is changing rapidly. We still need the technologies for long

distance UHV transmission, but we also need the innovative solutions to integrate renewable

energy sources such as wind on shore and off shore as well as solar. These changes in the power

system are increasing the demand for dc transmission projects and power electronic equipment.

Not only traditional solutions are necessary, but more innovative solutions in both dc and power

electronics are necessary. For instance, the retirement of traditional fossil based generation

located near load centers and opting for renewable energy resources that are transmitted to the

load centers utilizing dc certainly is an issue that creates new challenges that need to be under-

stood.

Within CIGRE, Study Committee B4 is responsible for DC and Power Electronics. The South African

National Committee kindly invited study committee B4 to hold the annual study committee meet-

ing, and working group meetings in South Africa. The study committee meeting will be held on

September 30th. Nine working groups are also meeting between September 28 and 29.

Study committee B4 is honored to share a two day colloquium with CIGRE South African Regional

conference.

On behalf of Study Committee B4, I would like to thank the South Africa National Committee for

the kind invitation and I would encourage our colleagues from Africa to attend and participate in

CIGRE and certainly in study committee B4 activities. Having the meetings in South Africa is a

great opportunity for the SC B4 members to learn about the needs and the challenges in the

African electricity sector as well as exchange their valuable experience and knowledge with the

engineering community in Africa.

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Dr. Mohamed Rashwan

Chair of the SANC Conference

Organising Committee

On behalf of the CIGRE Conference Organising Committee, I would like to welcome to the Joint 9th

CIGRE Southern Africa Regional Conference and CIGRE SC B4 International Colloquium in Johan-

nesburg.

The papers that will be presented at this event cover several topics such as battery storage,

microgrids, HVDC and FACTS, impacts on markets and regulations. We have made sure there is

something for everyone at this conference, with other sessions covering topics such as power

transformers and overhead lines.

We are particularly pleased with the speaker line up at this conference, with addresses from Dr

Rob Stephen, the President of CIGRE, Mohamed Rashwan, Chair of the CIGRE Study Committee

B4, and Dr Yusheng Xue, Honorary President of State Grid Electric Power Research Institute, as

opening and keynote addresses. We are also privileged to host the inaugural event for Women in

Engineering for CIGRE Southern Africa.

There is an exhibition and several technical tours, where delegates are sure to find something of

interest. You will also enjoy the social events that have been organised to make sure you network

with colleagues and make new connections. We have arranged tutorials that offer an excellent

opportunity to delve further into topics relevant to today’s electricity industry.

I warmly welcome you to make the most of this event in all its facets and, if you are from outside

of South Africa, to make the most of the unique culture that the City of Johannesburg and its

surrounds have to offer!

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Sharon Mushabe

Programme Summary

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Time Description

07: 30 – 08:15 Registration in the Exhibition Hall

08:15 Opening, Safety and Security Briefing

08:30 – 10:00 Tutorial 1: FACTS Planning, Technology Selection and Specification

Presenter: Georg Pilz | SIEMENS, Germany

10:00 – 10:30 Tea/Coffee Break in the Exhibition Hall

10:30 – 12:00 Tutorial 2: Technology Selection and Specification of HVDC

Presenter: Bruno Bisewski | RBJ Engineering, Canada

12:00 – 13:00 Lunch in the Exhibition Hall

13:00 – 14:30 Tutorial 3: ICT and Telecoms solutions for DERs and micro grids

Presenter: Zwelandile Mbebe | Eskom, South Africa

14:30 – 15:00 Tea/Coffee Break in the Exhibition Hall

15:00 – 17:00 Tutorial 4: TB740: Contemporary design of low cost substations in developing countries

Presenter: Theuns Marais | Eskom, South Africa & Philip Koenig | Royal Haskonig DHV, South Africa

17:30 – 19:30 Welcome Cocktail Function in the Exhibition Hall

Tuesday, 1 October Tutorials and Exhibition

Tuesday, 1 October Women in Engineering Forum (WiE)

Tuesday, 1 October Opening Cocktail Function, Exhibition Hall, 17h30

Wednesday, 2 October Joint Regional Conference and B4 Colloquium, and Exhibition

Wednesday, 2 October Conference Dinner, Carnivore Restaurant, 18h30 for 19h00

Thursday, 3 October Joint Regional Conference and B4 Colloquium, and Exhibition

Friday, 4 October Technical Tours: Local - Departs from Misty Hills

Saturday, 5 October Technical Tour: Namibia - Departs from Hilton, Windhoek

Tutorials

Tuesday, October 1, 2019 Misty Hills, Muldersdrift, Johannesburg | Room: Pelindaba 1

17:30 -19:30

07:30 - 09:00

Time

09:00 - 09:15

09:15 - 09:25

09:25 - 09:40

09:40 - 10:20

10:20- 10:30

10:30 – 11:00

Time Venue: Springbok

11:00 – 12:30

B4 Session 1Network Stability

Session Chair: Bjarne Andersen

11:00 – 11:15

#2 Real-time Modelling and Simulation of a Multi-

terminal Hybrid UHVDC Transmission System, G. Wenming

11:15 – 11:30

#11 Real-time simulation and analysis of phase shifting

transformer for improvement of Tomsk power system

transient stability, O. Suslova

11:30 – 11:45

#18 Using a Series Blocking Reactor to Reduce

Harmonic Filtering Requirements and Losses in Static

VAr Compensators:Tauá SVC Experience, M. Lima

11:45 – 12:00

#19 Temporary DC Fault Clearing Sequence in a HVDC

System with Voltage Source Converter and Overhead

Line, K. Fadzeyeu

12:00 – 12:15#27 Minimizing Loss of Transmitted Power by VSC

during Overhead Line Fault, P. Portugal

12:15 – 12:30

#30 Simulation Research on the Effect of Combination

Modification of HVDC and STATCOM on the Stability of

DC System in Weak AC Networks, Q Guo

12:30 – 13:30

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13:30 – 15:00

Session 2Power system operation and control

Session Chair: Kehinde Awodele

Session 3Integration of Distributed Energy Resources and

MicrogridsSession Chair: Jarrad Wright

B4 Session 2Renewable Energy

Session Chair: Les Brand

13:30 – 13:45

#116 High Penetration of Inverter Based Generators:

Things to consider when conducting frequency studies,

N. Gumede

#96 Emerging Regulatory Requirements for Small

Modular Nuclear Reactors in Distributed Electrical

Systems, D. Nicholls

#3 Design and Operational Experience of the World’s

First Three-terminal VSC HVDC system (Nan’ao MTDC)

for Wind Power Integration and its Upgrade with DCCBs,

S. Xu

13:45 – 14:00

#93 The Advantages of PMU Data Analytics in Power

Systems with High Renewable Energy Penetration, T. Machabe

#105 Engineering Small Modular Nuclear Reactors for

Micro and Nano Grid Application : The Case Study Based

on NASA's 10 kilowatt unit, S. Connell

#7 Regional HVDC Interconnection and its Impact on

Network Performance, R. Hariharan

14:00 – 14:15

#124 Challenges of operating a power system with

integrated renewable energy generation: A case study,

B. Nhlapo

#37 Integration of PV installations within grids: Impacts

and solutions, Q. Tran

#17 Impact of Integration of Large Amount of

Renewable Generation near Existing HVDC Terminals, H. Suriyaarachchi

14:15 – 14:30

#128 Constraining the intermittency of wind and

photovoltaic systems through curtailment, N. Mararakanye

#103 Evaluation and Impact Assessment of Solar Roof-

Top PV on Electric Power Distribution Networks, R. Reddy

#21 Increasing Bulk Power Transfer of Renewable

Generation with Modular FACTS to Lower Wholesale

Costs to Consumers, P. Harrington

14:30 – 14:45#65 Managing flexibility in power system planning:

Modelling and cases of study, A. Mansoldo#50 Virtual Synchronous Generator-Based Control in

Power Systems; An Overview, P. Simiyu

14:45 – 15:00

#100 Exploiting Cascade Failure for the Calibration of

Planning Assumptions and Operational Improvement, M. Viljoen

15:00 – 15:30

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15: 30 – 16:30

Session 4Photovoltaic Technologies, Small Scale Embedded

Generation and Distribution TransformersSession Chair: Pamela Kamera

Session 5Markets and Regulations

Session Chair: Kurt Dedekind

B4 Session 3LVDC and MVDC distribution and microgrids,

Distributed FACTS devices, Synthetic inertia, HVDC Insulation

Session Chair: Dragan Jovcic

15:30 – 15:45

#67 Performance characterization of different

photovoltaic technologies in outdoor climatic conditions,

H.W. Mkasi

#42 Integration Of Distributed Energy Resources (DER’s)

: A Revenue Impact Study & Tariff Optimization Analysis

for Ethekwini Municipality, L. Moodliar

#26 Droop-based Control with Virtual Inertia and

Stability Analysis of the Multi-terminal VSC MVDC

Distribution Network with PV integrated, P. Simiyu

15:45 – 16:00#135 Eskom Heritage Park rooftop PV Project, A. Pandarum

#104 Development of Small Modular Nuclear Reactors

as Municipal Power Stations, D. Nicholls

#29 Performance of a VSC with Energy Storage

Capability Compared to Virtual Synchronous Machine

Control Strategy in Weak Grids, H. Suriyaarachchi

16:00 – 16:15#41 The future of Distributed Solar PV in South Africa, A. Pandarum

#95 Evaluating capacity mechanisms in the South

African Power Pool, J.G. Wright

#13 Pollution mapping methodology for selection of

external insulation of HV DC and HV AC electric

transmission, O. Suslova

16:15 – 16:30 #133 The Dead Grid Safety Lock, H. Geldenhuys#120 Exploring a regulatory framework for Battery

Energy Storage Systems, Z. Lincoln

#97 Leakage current monitoring on in-service

composite and glass insulators of the Cahora Bassa

HVDC transmission line, N. Parus

19:00 - 23:00

Welcome Cocktail - Exhibition Hall

Tuesday, 01 October 2019

Registration - Exhibition Hall

Venue: Pelindaba

Wednesday, 02 October 2019

Opening Address - Mohamed Rashwan, Chair, CIGRE Study Committee B4

Venue: Pelindaba

Q & A session

Tea/Coffee/Exhibition

Welcome - Prince Moyo, Chair, CIGRE Southern Africa

CIGRE International Update - Rob Stephen, President, CIGRE

Keynote Address - Yusheng Xue, Honorary President, State Grid Electric Power Research Institute

Gala Dinner - Carnivore Restaurant

#45 Challenges and Opportunities of Battery Storage in the WAPP Interconnected HV Grid, S. Mahapatra

#88 Microgrid / Battery Energy Storage Systems value stacking to defer distribution capacity upgrades for Radial

Feeders, R. Singh

Session 1Battery Energy Storage Systems Applications

Session Chair: Prudence Madiba

#139 Eskom experience on battery energy storage systems: the network planning perspective, M. Soni

Tea/Coffee/Exhibition

Lunch/Exhibition

#140 Detailed methodology to precisely assess the need for battery systems to solve congestions in the Turkish

Transmission Grid, P. Lienhart

#46 Electrification of Africa: Future prospects of the Provision of Ancillary Services in the WAPP system using the

Battery Storage facilities of the Mini-grids, S. Ki

#38 Studies to determine optimal battery storage for increasing variable renewable energy penetration on eight

Pacific Islands, G. Chown

08:00 - 09:00

!FER#!FER#!FER#emiT

09:00 – 10:30

Session 6Emerging Technology in Power Transformers

Session Chair: Mokwape Lekganyane

Session 7Emerging Technologies

Session Chair: Zwelandile Mbebe

B4 Session 4HVDC Reliability, Refurbishment and upgrades of

HVDC and FACTS installationsSession Chair: Carsten Bartzsch

09:00 – 09:15

#49 Effects of Surface Discharges on the Lightning

Impulse Breakdown Voltage of Ester Oil-Impregnated

Pressboard Insulation in Power Transformers, B. Ndlovu

#52 Experience with an Industrial IoT 800 kW Microgrid

in Africa, A. Hank#1 Future Proofing HVDC Systems, M. Bennett

09:15 – 09:30

#64 Applicability of Dissolved Gas Analysis in canola-

based natural ester oil under high energy discharge

fault, H. Mnisi

#62 Viability of plastic hardware for

telecommunications, M. Hoosen #28 Improving HVDC system reliability, T. Rauhala

09:30 – 09:45

#68 A study of cavity partial discharge time-evolution

characteristics in ester oil-impregnated transformer

press-board insulation, K. Mosala

#99 Neutronics and thermal hydraulics modelling for a

single fuel element immersed in a helium thermal fluid

for a distributed energy source, S. Connell

#34 Use of HVDC reliability and availability data in

power system analysis - approaches, challenges and

opportunities, T. Rauhala

09:45 – 10:00

#73 Ten Years of Experience with Natural Ester Dielectric

Fluid in 245kV: Shunt Reactor of Vilhena Substation –

Eletronorte, R. Da Silva

#119 Artificial intelligence inclusion in infrared

thermography programs: A use case, J. Becker#91 Parallel Operation of the Two Poles on One Line in

the Inga-Kolwezi HVDC Scheme, E. Lubini

10:00 – 10:15

#84 Solar Power Plant Transformer Loss Computation

under Harmonic Currents using Field Element Method,

B.A. Thango

#70 Electroluminescence (EL) Imaging characterization

for Photovoltaic (PV) modules, M. T. Malefafana

10:15 – 10:30

#78 Recognition of the benefits by the use of

Transformers and Reactors immersed in insulating fluid

with high fire point (k class): the case of Fire Department

of Sao Paulo state in Brazil, R. Da Silva

#136 Single phase energisation resonance of small

distribution Transformers, H. Geldenhuys

10:30 – 11:00

!FER#!FER#!FER#emiT

11:00 – 12:30

Session 8Power system technical performance

Session Chair: Matankiso Mohlokoana

Session 9Power Lines

Session Chair: Milliah Ripinga

B4 Session 5HVDC and FACTS Equipment and Technology

Session Chair: Abhay Kumar

11:00 – 11:15#77 Validation of EMT Models of Renewable Power

Plants in South Africa, A. Bartylak#44 Advantages and disadvantages of low insulation

level on overhead MV power lines, A. Beutel#5 Failure mode analysis of Hybrid DC Circuit Breaker,

D. Jovcic

11:15 – 11:30

#58 Considerations in the development of a distributor’s

blackout load restoration and recovery plan, U. Heideman

#115 The Application of Remotely Piloted Aircraft

Systems (RPAS) for Powerline Inspections, S. Biyela#22 Loss Optimized Design Of Air-core Reactors, A. Gaun

11:30 – 11:45#48 Low frequency electric safety analysis of a utility

scale photovoltaic plant, P.H. Pretorius#117 Considerations for Transmission Line Emergency

Restoration, S. Nzama#31 Functional Real Time Testing of HVDC IEDs, G. Chaffey

11:45 – 12:00

#47 Lightning risk considerations related to wire-line

technology applied in large utility scale PV plant, P.H. Pretorius

#109 Overhead Line Tower Member Theft, G. Strelec#36 Parallel connection of IGBT devices in VSC for

HVDC, J. Dorn

12:00 – 12:15

#6 Harmonic emission assessment in a dynamic

environment using aggregated harmonic phasors, B. Peterson

#121 Eskom experiences with innovative foundation

solutions, S. Dubazana

#80 Modelling, testing and evaluation of HVDC

equipment- HVDC Converters, DC Breakers, DC

Transformers, N. Gwatidzo

12:15 – 12:30

#66 Automatic Service Restoration on Distribution

Networks for the Implementation of Fault Location,

Isolation and Service Restoration (FLISR), F. Mthethwa

#102 Pollution Monitoring for HVDC Transmission, M. Mathebula

12:30 – 13:30

Time

13:30 – 15:00

13:30 – 13:45

13:45 – 14:00

14:00 – 14:15

14:15 – 14:30

14:30 – 14:45

14:45 – 15:00

15:00 – 15:30

15: 30 – 16:00

Thursday, 03 October 2019

Tea/Coffee/Exhibition

Lunch/Exhibition

Registration - Exhibition Hall

#35 Design considerations for ±800kV, 6000MW Raigarh-Pugalur HVDC, Interconnecting Central and South India, R. Patlola

Joint Session Regional Interconnections

Session Chair: Mohamed Rashwan

#54 Improving the security of the power corridor between South Africa and Namibia: Eskom-NamPower 2nd 400kV interconnector case study, S. Ncwane

#74 Network planning studies to evaluate the impact of the Botswana – South Africa (BOSA) interconnector on the SAPP Network, T. Mokoena

#REF!

Closing Ceremony - Best Paper Awards

Tea/Coffee/Exhibition

#20 Strategy for Northeast Asia Power System Interconnection - Technical Assistance to Mongolia, P. Lienhart

#16 The Eastern Electricity Highway Project - Design Aspects and Major Technical Features of the new HVDC Interconnector, C. Bartzsch

#24 System Design of the 3*1000MW Luxi Back-to-Back with hybrid LCC and VSC technology for regional interconnection, S. Xu

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Welcome Cocktail FunctionTuesday, 1 Oct, 17:30 – 19:30

Venue:

Dress:

Exhibition Hall, Misty Hills

Informal

All delegates and exhibitors are invited to join CIGRE SA for a welcome

cocktail function in the exhibition hall to unwind after the day’s proceedings.

CIGRE SA Annual Dinner:African FeastWednesday, 2 Oct, 19:00 – 23:00

Venue:

Dress:

Cost:

Sponsor:

Carnivore Restaurant at Misty Hills

Semi-formal /Smart / Traditional

R650.00 per person

Revive Electrical Transformers (Pty) Ltd

Delegates, exhibitors and stakeholders get together, network and make

memories – an evening of good food, good music and best of all,

good company.

Social Events

Technical Tours

1 2 3Kusile

Power StationApollo HVDC

Converter StationEskom NationalControl Centre& Battery Test

Facility

Tour Tour Tour

06:30

-

14:00

07:45

-

16:00

08:00

-

16:00

4Gerus ConverterStation, Namibia

Tour

07:00

-

18:00

These tours are only available to those who have booked and paid in advance.

List will be posted in the registration area.

Friday, 4 October 2019 Departing from Misty Hills

Saturday, 5 October 2019

Departing from

Windhoek Hilton,

Namibia

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Wifi Access

Free Wifi access is available to delegates.

Username:

Password:

CIGRE

power2019

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Exhibition Floorplan and Exhibitors

NR Electric

GE Grid Solutions

EE Publishers

SAIEE

AMC / MCT

Allbro (pty) ltd

Mace Technologies

Cigre NGN

EBN

Doble Engineering Company

Nynas South Africa

Midel

Space only

Silver Spectrum Solutions (pty) ltd

OTN Systems

Alectrix

OPAL-RT Europe

Siemens

Intercal

Preformed Line Products

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www.cigresa.org.za