Swaziland

In collaboration with Civil Engineering Consultants, PSD carried out feasibility studies for a new hydro power plant and expansion to an existing hydro power plant.

2019

Sweden

Hogaliden Wind Farm Engineering and Compliance studies to verify the design parameters of the new 100MW wind farm and to also determine its compliance to the numerous regulations in the Västerbotten province of Sweden. PSD was responsible for the following main tasks:

- Transient Overvoltage Study

- Fault Studies

- Reactive Power Control Study

- Voltage Performance Study

- Harmonic Performance Study

2019

Malawi

PSD performed the complete suite of steady state and dynamic studies to assess whether 60MW Solar Power Plant is compliant to the Malawi Grid Code and Renewable Grid Code requirements. PSD consulted the Client regarding the sizing of static var generators in order to comply with the reactive power capability of the plant.

2019

UAE

Al Ain and Abu Dhabi shunt compensation (132kV and 220kV): assist with setting up power quality measurement equipment at transmission grid stations. Carry out EMT and integration studies for HV Capacitor banks. Compiling the technical specifications (including drawings and datasheets) for C-Type Filter Banks

2019

UAE

Carry out power quality measurements and analysis at three 132kV Grid Stations in the Northern Emirates. Shunt capacitor bank studies, including ferro-resonance, reactive compensation and fast transformer switching (TRAC). Responsible for compiling the technical specification (including drawings and datasheets) for 3 x 60MVAr C-Type Filter Banks.

2019

Sarawak Malaysia

Consulting Services during the tender, design and construction phases of the Tondong STATCOM) project – 2 x +/-120MVAr MMC Technology STATCOM s. Scope of services includes tender clarifications and evaluation, STATCOM design review – primary plant component design, control and protection system, valve and cooling design, layout etc – and witness of factory tests, site supervision and commissioning.

2019

Kenya

PSD provided specialist engineering consultancy services relating to the 3x±100MVAr STATCOMs for the biggest wind farm in Africa with 365 turbines. This included design reviews, RTDS testing and site commissioning.

PSD performed the Commercial operation testing of the 300MW Lake Turkana Windfarm Project (LTWP) and its interface to the overall Kenyan grid.

2019

St Helena Island

As part of their power quality monitoring program CONNECT appointed PSD to measure the power quality of the electricity supply on St. Helena island. This included the installation of 11 power quality measurement instruments and analysis of the results. Concerns had to be identified and solutions recommended.

2018

Botswana

Maun Substation Reactive Power Compensation: PSD was responsible for Power System studies to determine the level of reactive power compensation required at Maun 132/11 kV Substation. PSD also undertook Harmonic Measurements, verification of loading parameters of the PSS/e software model and designed an optimized network reactive power compensation solution. Further services provided included preparation of tender documents for the design, supply, installation, testing and commissioning of the reactive power compensation equipment, witnessing of factory and site acceptance tests and engineering support during the warranty period

2018

Abu Dhabi

Abu Dhabi Lot 1 reactive compensation strategy: SVC/STATCOM detailed studies, compilation of +200MVAr (Inductive) -400MVAr (Capacitive) SVC/STATCOM specification. Compile prequalification report as part of the procurement plan. Provide the client with harmonic measurement guidelines in terms of IEC 61000.

2017

Oman

Engineering Consultancy Services Static Var Compensators (SVC's) Consultancy Service for Reactive Power Compensation Strategy: PSD is responsible for the SVC/STATCOM specification, and SVC Control modifications.

Review of International Criteria, Study Methodology and Assumptions, Steady State Assessment, Load Modelling, Dynamic Reactive Power Assessment.

2016

Zambia/Tanzania/Kenya

PSD performed the technical feasibility studies relating to the interconnection of EHV transmission grids of Zambia, Tanzania and Kenya. The studies included small signal stability studies, transient fault analysis, load flow studies and dynamic stability studies for the interconnection of the Southern African Power Pool (SAPP) and the East African Power Pool (EAPP). PSD also offered best practice solutions to load flow and stability constraints that were encountered during the study.

2016

Mozambique

Engineering consulting services for ongoing support to client for definition, specification and implementation of projects to improve the reliability and technical performance of existing HVDC station in the short to medium term. Phase 1 included replacement of 3 x single phase converter transformers, DC smoothing reactors, DC surge arresters and DC optical CT’s. Phase 2 includes the refurbishment of converter transformers, replacement of a back-up diesel generator, purchase of a spare converter transformer, replacement of 220kV ac surge arresters and replacement of critical components on the valves and valve base electronics.

Preparation of technical specifications for a major upgrade to Songo converter station to improve reliability and technical performance in the long term. The scope of the project includes replacement of HVDC control and protections systems, converter valves, valve cooling, ac filters, dc filters, ac and dc equipment, ac and dc auxiliary systems and the installation of a 220kV transfer busbar. It also includes the replacement of the Grid Master Power Controller with a Grid Power and Frequency Controller.

2014

Botswana

Power System Studies and Equipment Specification for Maun Substation Reactive Power Compensation Project

2015

Saudi Arabia

Detailed Design reviews and project execution support for SVC’s, STATCOM’s and Hybrids, including tender preparation, bid adjudication for Saudi Electric Company

2015

South Africa

Third Party Inspection of electrical equipment for the 90 MW Solar Plant in De Aar, Northern Cape

2015

South Africa

Development of PSCAD Model suitable for EMT Simulations for the 5 MW Swartland Photovoltaic Solar Plant.

2015

Abu Dhabi, UAE

SVC Specification and SVC Control System Modification for Reactive Power Compensation Strategy

2014

Pakistan

SVC Design Review during the design and construction phase of the SVC project.

2014

Kenya

Statcom Design Review for Lake Turkana Wind Power Plant

2014

Namibia

Consultancy services for the addition of 20 MVAr Capacitive Reactive Power at Khan Substation.

2014

Mozambique

System studies, harmonic measurements and equipment specification for 250 MVAr, 220 kV SVC / Statcom at Chimuara and Namialo Substations.

2013

Lesotho

System Studies and stability analysis for Lesotho Electricity Company for the Feasibility Study for the 132 kV transmission line Mohale’s hoek to Mphaki.

2014

South Africa

System Studies, harmonic measurements, harmonic apporioning and Technical Specification writing for the 350 MVAr, 400 kV SVC / Statcom at Aries 400 kV Substation.

2013

Mozambique

EMT studies (with PSCAD) for the 400kV system comprising of +/- 1400km AC transmission line, multiple substations, SVC’s, series capacitors and line and busbar reactors. Technical Specification writing for multiple SVC’s.

2012

South Africa

Grid impact studies for the 400kV connection of a 138MW wind farm facility to be located close to the town of Caledon in the Southern Cape, South Africa.

2012

Iceland

Assist Landsnet on the tender review, technical adjudication and design review of the Klafastadir SVC.

2011

South Africa

Grid integration and Grid Code compliance studies to connect 125 MW CSP plants to the Eskom grid.

2011

South Africa

Preparation of cost estimates for the connection of a 20MW PV plant, to be located near the town of Lephalale in South Africa, to the Eskom grid.

2011

Uganda

System studies to determine reactive power compensation requirements for the Uganda Transmission grid up to the year 2018. The assignment included the development of technical specifications for the proposed reactive compensation projects.

2011

South Africa

Steady state Analysis of the North to South power transfer capability of the ZESA transmission grid.

2011

South Africa

NER study for Ferrum Mookodi transmission system and for the Medupe transmission system.

2011

Saudi Arabia

Study to determine optimal shunt capacitor size and location for 132kV voltage support to accommodate motor starting for the SWCC Shaqaiq-2 Water Pumping Scheme. The study included the optimal configuration for harmonic integration.

2011

Saudi Arabia

Perform insulation co-ordination, inrush current and short circuit current study for 380kV, 220kV and 34.5kV equipment at the 1.35GW Raz Al-Khair aluminium smelter in Saudi Arabia.

2011

South Africa

Engineering, Design, Implementation and Commissioning of an expansion to an existing 275/33 kV, (2X) 180MVA Substation for a ferrochrome smelter project near Steelpoort, South Africa. The services provided included Power System Studies and Analysis, Substation Engineering and Design, Testing and Commissioning Supervision.

2010

Saudi Arabia

Detailed system studies and specification up and including contract award for 15 SVC’s including shunt capacitor banks, including tender preparation, bid adjudication - phased over several years. The project included Harmonic measurements at each of the sites.

2010

Dubai

Engineering Consultancy Services for 2 Static Var Compensators (SVC's) at NHDA & Carx 400 kV Buses and Associated Modification Works. PSD is a sub consultant together with Kema to Energo. PSD is responsible for harmonic measurements, the SVC specification and technical tender evaluation, and during the contract execution phase responsible for design reviews, technical review of the SVC design, factory witnessing of key components, such as the thyristor valves, control and protection including RTDS testing, and finally site services during final commissioning and performance verification.

2010

Pakistan

Training on PSCAD simulation and modeling software.

2010

Phillippines

Review of the Expenditure Forecasts of the National Grid Corporation of the Philippines for the Third Regulatory Period (2011 – 2015) Under Performance Based Regulation.

2010

Saudi Arabia

Detailed system studies and specification up and including contract award for two Fixed Series Compensation banks, including tender preparation, bid adjudication.

2009

USA

SVC model development and verification in PSCAD for Quanta Technology.

2009

DRC

A Technical Study of the Voltage Stability of the Tenke Fungurume Mining/D.R.C. Southern Katanga 220 kV 50 Hz System (Statcom project), Inclusive of harmonic measurements.

2009

Kenya

Dynamic Reactive Power Compensation (3xStatcom with shunt capacitors and reactors) for the Lake Turkana Windfarm project in Kenya. Perform dynamic EMT studies and prepare a detailed specification. Assist with technical tender preparation, bid adjudication up to final contract award.

Zambia

Capacitor bank studies for the Zambian utility throughout their network. Inclusive of harmonic measurements.

2009

Zimbabwe

Detailed SVC specification studies and specification up and including contract award for a SVC at Dema Substation (Zimbabwe), including tender preparation, bid adjudication up to final commissioning verification.

2009

South Africa

Network master planning for Eskom Distribution.

2009

South Africa

Training course on SVC technology and systems and PSCAD Simulation Software.

On-going

South Africa

Failure investigation into VSD drive (4 x 6.6MW) failures, including harmonic measurements, modelling and simulations.

2009

Mozambique

Technical and Economic Feasibility Study for Mozambican Integrated Transmission Backbone System.

2008

Namibia

Detailed capacitor tuning and rating studies, including insulation co-ordination studies for transmission shunt capacitor banks at Omburu substation and Otjikoto substation. Assistance during project execution up to final commissioning. Inclusive of harmonic measurements.

2008

Saudi Arabia

Detailed system studies and specification up and including commissioning and performance verification for four (4) 660MVAR SVC’s, including tender preparation, bid adjudication, design review. Various shunt capacitor banks is also part of the scope of work: harmonic investigations, filter design and specifications.

2008

Saudi Arabia

Detailed system studies and specification up and including commissioning and performance verification for 200MVAR SVC’s in Dammam, including tender preparation, bid adjudication, design review.

2008

Mozambique

Detailed system studies and network integration studies, cost estimates for the integration of the Suez 100MW gas power station in Mozambique.

2007

South Africa

Feasibility studies regarding insulation co-ordination and integration of nuclear power stations into the Eskom Transmission Grid.

2007

South Africa

Detailed EMT studies on six (6) 765kV series capacitor banks, including TRV studies (Alpha – Beta and Zeus/Mercury/Perseus).

2008

South Africa

Detailed grid code compliance studies for 14MW standby power station at Black Rock Mountain mine.

2008

South Africa

Detailed rating and tuning studies for the shunt capacitor banks at Esselen, Athene and Mersey.

2006

South Africa

AEG SVC upgrade projects:

1. Engineering support, specifications and project management support for the SVC Control, Protection, Thyristor Valve and Cooling replacement of 5 x 400kV SVC’s with a 500 MVAr dynamic range each.
2. Replacing the external device switching controller with a digital PLC and include the two new shunt capacitor banks in the switching logic. The project included both hardware and software development, installation and commissioning.

2006

South Africa

A planning study was undertaken to evaluate the performance of Eskom’s Vaal South 275kV network. The study investigation evaluated the technical performance of the system, and alternative transmission reinforcement options were identified and investigated from both a technical and economic standpoint. The planning study also included a review of the grid compliance status of Lethabo Power Station to ensure that the requirements as stipulated by the National Energy Regulator was met and satisfied. This required, amongst other things, detailed load flow, fault level and transient stability investigations.

2006

Mozambique

Development of a Low Cost Rural Electrification Plan (LCREP) to assist the Government of Mozambique (GOM) in fulfilling their vision of 20% of the nation’s population having access to electricity by 2020.

2006

Saudi Arabia

Harmonic integration study for the shunt capacitor banks at Sakaka A & B. Inclusive of harmonic measurements.

2006

New Zealand

Network studies and investigations, and the compilation of Vector substation disaster recovery plan (Auckland and Wellington Regions) for TransPower New Zealand.

2006

Saudi Arabia

Investigate energy rating and location of 380kV surge arresters for the GIS at Qurayyah.

2006

South Africa

Detailed insulation co-ordination studies for the Cape Corridor 765kV system.

2007

Mozambique

A review study considered the transmission integration of Mphanda Nkuwa 1300MW hydropower station to be located on the Zambesi River in Mozambique. The review study included the steady state analysis of the proposed 400 kV AC system solution (load flow fault level and power transfer capability calculations), an assessment of the risk of operating the planned AC system with the existing Cahora Bassa HVDC transmission system, and a review of the transmission capital cost estimates for the project.

2005

South Africa

PSD was commissioned by Eskom, the South African electric utility to conduct insulation coordination studies on the transmission systems that are planned to integrate proposed Open Cycle Gas Turbine (OCGT) generation facilities in South Africa. The scope of work included transmission line energization and switching study investigations, lightning studies, line ARC investigations, and an evaluation of the adequacy of installed surge arrestors.

2005

Saudi Arabia

Western Area SVC project included detailed system studies and specification up and including commissioning and performance verification for three (3) 660MVAR SVC’s, including tender preparation, bid adjudication, design review, RTDS testing of the SVC Control system. Inclusive of harmonic measurements.

2005

Saudi Arabia

Detailed capacitor tuning and rating studies, including insulation co-ordination studies for transmission shunt capacitor banks. Inclusive of harmonic measurements.

2005

Saudi Arabia

Detailed reactor studies, including insulation co-ordination studies for transmission connected busbar and line/cable connected reactors.

2004

Botswana

A study investigation looking at the integration of additional generation capacity at the existing Morupule Power Station in Botswana.

2003

South Africa

Engineering design, technical project management and testing and commissioning of the 400kV and 275kV Shunt Filter Capacitor banks.

2003

Mozambique

Transmission System Integration Study Close to the town of Chibuto, Mozambique for the Corridor Sands Project.

2003

Namibia

Study investigation to find the best techno-economic solution to supply a possible 600 MW Ferro-Si/Manganese smelter load, to be located close to the town of Windhoek, from Auas 400/220 kV Substation.

2002

South Africa

Design review, Witnessing of Factory tests, Technical coordinator between supplier and utility, Testing and commissioning of HV plant for the replacement and upgrading of three 400 kV Luckhoff series Capacitor Banks.

2002

Namibia

Feasibility study on the proposed Caprivi High Voltage Direct Current (HVDC) Link. The services provided included Network Planning Studies, EMT studies, Determination of electrical parameters as input into functional specification, Development of functional specification.

2002

South Africa

Transient Studies (EMT), Load Flow Studies, Harmonic Studies and Technical Specifications for two SVC’s which were required as part of the Eastern Cape network strengthening plan.

2002

South Africa

Conduct the necessary Insulation Coordination study investigations for the proposed network extensions under the Coega IDZ development scheme.

2002

Saudi Arabia

Extensive studies including specifications for 380kV series capacitor banks. Bid adjudication, design review as well as detailed verification studies on TRV and RRRV, MOV rating verification, Fault performance verification.

2002