Monthly Archives: November 2020

iHost PQ example

Technical Posting: Primary Networks Power Quality Analysis

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WPD Tracking Power Quality with a New Monitoring Platform

James King recently delivered a monthly technical webinar that ties in with Study Committee C6 activities, specifically WG C6.36 on DER bench marking models.

Over the coming years, increasing numbers of power electronic focussed low carbon technologies (LCTs), such as inverter-interfaced generation and Electric Vehicles (EVs) are expected to connect to GB distribution networks which will have impacts on the network power quality (PQ). Western Power Distribution (WPD) are undertaking the Ofgem-funded   “Primary Networks Power Quality Analysis” (PNPQA) project to better understand the current and future impact of LCTs PQ within their “primary” distribution networks.

The project includes a widescale trial of communicating PQ monitors and a central platform for collecting, hosting, and analysing PQ data. The central platform is vendor-agnostic and is able to transparently handle data obtained from different manufacturers’ PQ monitors. Multiple features are available to streamline PQ analysis tasks such as:

  • Visualisation of PQ data trends over time and on aggregate.
  • Presentation of PQ data as a heat map.
  • Viewing of fault/event recordings (e.g. COMTRADE).
  • Built-in analysis tools for reporting including EREC G5/5 assessments and EN 50160 compliance reports.
  • Dashboard of PQ and monitor status, including a map view.

To visit the project details:

To download the monthly technical webinar presentation:


B5 Liaison Meeting eventbrite image

CIGRE UK B5 Technical Liaison Meeting

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CIGRE UK B5 liaison meeting

The purpose of the meeting, led by UK Regular Member John Wright, is to provide a high-level overview of the ongoing activities in CIGRE related to Protection & Automation. Technical Brochures published in the last year will be highlighted, along with a status update on all of the active B5 Working Groups where the UK has an interest. You will also hear about the latest new work items approved by the B5 Study Committee during the Paris e-session, and to provide feedback on possible future work items that could be proposed in the future. 

Joining the meeting

Simply register by clicking bellow and you will be sent an email confirmation that will include the details of the CISCO WebEx login. Please keep this safe as you will need this on the day of the meeting.

To Register for this event

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B5 Study Committee Mission, Technology & Scope


To facilitate and promote the progress of engineering and the international exchange of information and knowledge in the field of protection and automation. To add value to this information and knowledge by means of synthesizing state-of-the-art practices and developing recommendations.

Technological field of activity

Power system protection, substation control and automation, remote control systems and equipment, metering systems and equipment.


Within its technical field of activity, Study Committee B5 addresses topics throughout the asset management life-cycle phases; from conception, through research, development, design, production, deployment, operation, and end-of life. At all stages, technical, safety, economic, environmental and social aspects are addressed as well as interactions with, and integration into, the evolving power system and the environment. All aspects of performance, specification, testing and the application of testing techniques are within scope, with a specific focus on the impact of changing interactions and demands due to evolution of the power system. Life cycle assessment techniques, risk management techniques, education and training are also important aspects.

Within this framework additional specific areas of attention include:

  • Theory, principles and concepts, functionality, technological development, design, performance and application of materials, efficiency.
  • Manufacturing, quality assurance, application guidance, planning, routing and location, construction, erection, installation.
  • Reliability, availability, dependability, maintainability and maintenance, service, condition monitoring, diagnostics, restoration, repair, loading, upgrading, uprating.
  • Refurbishment, re-use/re-deployment, deterioration, dismantling, disposal.

Webinar image

CIGRE UK December Technical Webinar

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New Constraint Management Techniques for Meshed Transmission and Active Distribution Networks

An Online Technical Webinar

Wednesday 9th December 2020 | 12.30 to 13:30


Constraints on the Transmission network are costly, requiring potential capital investment in the longer term, and in the short term output management of generators in areas impacted by these constraints. In the UK, on average between £1m and £2m per day is spent in payments to generators, connected customers and others to ensure that overall integrity of the Transmission network is maintained. Issues such as thermal capacity, stability criteria such as voltage and dynamic all must be managed and can impact on constraints.

There are many techniques for minimizing constraints usually based on traditional analysis and network management, but System Operators throughout the world are looking to find other techniques to minimise the costs while maintaining the expected reliability and resilience.

Topology optimisation is a software technology that finds grid reconfiguration options which may lie deep in the network to route flow around congested/overloaded facilities and that would not be identified using current techniques.

These reconfigurations, implemented by opening or closing selected circuit breakers, enable power flow control using existing equipment and increase the utilization of meshed transmission and distribution network.

By optimally adapting the grid topology to meet system conditions and needs, the transfer capabilities increase in the desired directions, providing significant cost savings and reliability and resilience improvements to consumers. This presentation will illustrate the technology principles and discuss its impacts using case studies conducted with National Grid ESO and system operators in the US.

Typically, we find increases in available transfer capacity of over 10%, load shedding relief under emergency conditions and extreme events, reductions in renewable curtailments, and congestion cost savings of over 50%.

To Register for this event

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Speaker Profile’s

Robin Maclaren, NewGrid 

Robin MacLarenRobin MacLaren, has many years’ experience of operational Transmission Networks across the world. Formerly MD of ScottishPower T&D, and founder Chair of the ENA, and regular participant in CIGRE in Paris, as an engineer, he led the ScottishPower technical team to successfully resolve 2000 MW inter area oscillations and remove 1000MW dynamic stability boundary constraints between Scotland and England. He has maintained a close interest in technical work on constraints as UK networks have evolved and has more recently worked hands on resolving dynamic stability constraints in various countries. He is currently working with NewGrid on the applicability of solutions applied to Transmission and interconnected Distribution, and recently has been part of a BEIS panel reviewing Transmission and Distribution standards needed to meet net zero targets.

Dr. Pablo A. Ruiz, NewGrid

Pablo_Ruiz_squareDr. Pablo A. Ruiz is co-founder, CEO and CTO of NewGrid, a software startup providing topology optimization solutions, as well as Associate Research Professor at Boston University and a Senior Consultant at The Brattle Group. He was the Principal Investigator for the U.S. Department of Energy research and development project on Topology Control Algorithms that led to the formation of NewGrid. He supports system operators, electric utilities and market participants in North America, Europe and Latin America on constraint management in operations and planning to improve economic efficiency, reliability and resilience. Pablo holds a Ph.D. in Electrical and Computer Engineering from the University of Illinois at Urbana-Champaign.

Jay Caspary, Grid Strategies

Jay CasparyAs a Vice President at Grid Strategies LLC, Jay Caspary provides analysis and strategic guidance on transmission grid planning and operations to support a clean energy portfolio. Jay has 40 years of experience in transmission planning, engineering, management, tariffs, transmission services, and retail marketing. Most recently he oversaw Research, Development & Tariff Services for the Southwest Power Pool (SPP), the system operator in the U.S. Great Plains. He also served as SPP’s Director of Engineering and head of Transmission Development. In 2012-2013, Jay served as Senior Policy Advisor for the U. S. Department of Energy’s Office of Electricity Delivery and Energy Reliability (OE) with a focus on grid modernization. Prior to SPP, he served in several staff and managerial roles at Illinois Power in the U.S.

This Webinar series is kindly sponsored by Burns & McDonnell



Researchers from CIGRE UK & Austria NGN share their research on Lightning Phenomena and Power System Transients

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Dr Lukas Schwalt, Post-Doc Researcher at Graz University of Technology, and Dr Diptargha Chakravorty, vice chair of CIGRE UK NGN and Senior Consultant with TNEI Services, shared their research outcomes on Lightning Phenomena and Power System Transients through an online webinar on 12th November 2020. There were over 90 people attending the event.

The webinar is organised by the CIGRE UK & Austria NGN and hosted by the University of Birmingham Zoom platform.

The webinar was chaired by Ying Xue, Secretary & Treasurer of CIGRE UK NGN, Lecturer in Electrical Power Networks in the University of Birmingham. He introduced CIGRE UK NGN and key past events including the Young Member Showcase competition.


Manuel Galler, chair of CIGRE Austria NGN, introduced the establishment of Austria NGN in 2019 and the election of Austrian NGN Committee in March 2020. He further introduced key activities that Austria NGN was involved or organized in the past year and its future activities in 2021.


As the first speaker, Dr Lukas Schwalt first explained the general lightning characteristics with an emphasis on the Cloud-to-Ground (CG) Flash. He then introduced in detail his work of on-site measurements of CG flashes, where he showed the equipment he used and video and field records at different locations in the Austrian Alpine region. He further presented the correlation and analysis of Video and Filed Recording System (VFRS) and Lightning Location System (LLS) data.



Dr Diptargha Chakravorty started off his presentation by introducing the innovation competition project ‘Distributed ReStart’ and the motivation for using Distributed Energy Resources (DERs) to support system restoration. He the introduced the details of the test network that he used and arrangements of the case studies to assess the impact of different factors (e.g., energisation voltage and point on wave switching) on the unbalance and over-voltage in the system. He concluded his presentation by summarizing the key findings from the case studies.


CIGRE UK NGN Mentoring Scheme

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The NGN’s Mentoring Program aims to support early career professionals in reinforcing their existing skillset with regular one-to-one sessions, and promote participation in CIGRE activities.

Please click the link below and complete the following form to submit your interest and aspirations for the scheme.

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