Posts

Making the most of Europe’s grids: grid optimisation technologies to build a greener Europe

Making the most of Europe’s grids: grid optimisation technologies to build a greener Europe

WindEurope’s position paper explains that while grid expansion is crucial and needs to accelerate, grid optimization and timely solutions must also be considered. Grid optimization technologies can maximize the use of transmission capacity by increasing thermal and/or system limits or optimally addressing conservatively set margins. This can mitigate renewables variability, accelerate their integration and minimize their curtailment. The paper includes an assessment of grid optimization technologies, a variety of case studies and recommendations for regulatory changes to incentize large-scale adoption of these technologies.

Publishing Entity

WindEurope

Increase transfer capacity, improve energy security, renewable integration, Modular FACTS

Global Innovations from the Energy Sector 2010-2020

Global Innovations from the Energy Sector 2010-2020

This paper, from the World Economic Forum’s International Energy Community in China, presents an opportunity to reflect on some of the energy industry’s successful innovations since 2010. The innovations highlighted here were selected following a competitive process based on a number of factors including their contribution towards accelerating the energy transition.

Publishing Entity

World Economic Forum

Technology overview, renewable integration, increase transfer capacity, Modular FACTS

Modular Power Flow Control Enhancing German Transmission Grid Capacity: An Investigation

Modular Power Flow Control Enhancing German Transmission Grid Capacity: An Investigation

The German Network Development Plan includes several PSTs in the next few years. Since many network expansion efforts face delays, these projects are designed to help TSOs ‘buy time’ and increase transfer capacity by maximizing the use of the existing grid.

The Institute of Power Systems and Power Economics (IAEW) at RWTH Aachen University conducted a study to explore the system impacts of replacing four of these PSTs with m-SSSCs (modular static synchronous series compensators). The study found that compared to PSTs with the same capacity, m-SSSCs could provide double the system benefit. These benefits were possible because of the modularity and flexibility of the m-SSSCs. These characteristics allow TSOs to install the solution quickly, scale the deployments, reduce substation space and relocate the devices as necessary, ultimately allowing TSOs to better manage uncertainty compared with PSTs.

Publishing Entity

Institute of Power Systems and Power Economics, RWTH Aachen University

Authors

    • Dr. A. Moser
    • Dr. A. Klettke
    • Dr. J. Mehlem

Renewable integration, techno-economic studies, power flow studies, power system planning, cost-benefit analysis, optimize economic dispatch and reduce renewable curtailment, increase transfer capacity, Modular SSSC

Improving Transmission Operation with Advanced Technologies: A Review of Deployment Experience and Analysis of Incentives

Improving Transmission Operation with Advanced Technologies: A Review of Deployment Experience and Analysis of Incentives                        

The Brattle Group and Grid Strategies LLC jointly produced a report discussing the benefits of grid enhancing technologies to the transmission system. These technologies can provide economic benefits worth hundreds of millions of dollars and cost much less than conventional transmission upgrades. However, the existing regulatory structure in the US lacks sufficient incentive for utilities to capture the value these technologies can provide to the overall system. Hence, a modified regulatory framework that ensures the greatest societal benefit is worth considering.

Publishing Entities

The Brattle Group and Grid Strategies LLC

Authors

    • T. Bruce Tsuchida (The Brattle Group)
    • Rob Gramlich (Grid Strategies LLC)

Technology overview, increase transfer capacity, cost-benefit analysis, renewable integration, Modular FACTS

An application of modular FACTS devices to relieve transmission constraints and accelerate wind farm connections and firm access

An application of modular FACTS devices to relieve transmission constraints and accelerate wind farm connections and firm access                                      

This paper explains how modular power flow control can be used to quickly create additional capacity in ways not previously deemed cost effective or possible. This technology can alleviate grid constraints that limit renewable generation on the transmission and distribution grids.

Publishing Entity

Wind Integration Workshop

Authors

    • R. Fenlon

Presented at

Wind Integration Workshop, 2019

Technology overview, renewable integration, transient stability, series compensation, sub-synchronous resonance, increase transfer capacity, Modular SSSC

Strategic Transmission Investment using Modular Static Synchronous Series Compensators

Strategic Transmission Investment using Modular Static Synchronous Series Compensators

Duke Energy, a major US utility, describes the application of modular SSSCs to enable strategic transmission investment. Modular SSSCs mitigate risk by alleviating overloads that could occur due to deferred projects. Duke evaluates the use of modular SSSCs to defer a reconductor for several years and finds this solution is lower cost, smaller footprint and greater flexibility than alternate forms of power flow control.

Publishing Entity

CIGRE

Authors

    • E. Scott (Duke Energy)
    • M. Longoria
    • C. Heier

Presented at

CIGRE USA, 2019

Capital deferral, construction and maintenance outage windows, risk mitigation, outage coordination, increase transfer capacity, Modular SSSC, Mobile power flow control

Increasing Bulk Power Transfer of Renewable Generation with Modular FACTS to Lower Wholesale Costs to Consumers

Increasing Bulk Power Transfer of Renewable Generation with Modular FACTS to Lower Wholesale Costs to Consumers

This paper describes how three Australian network owners, TransGrid, AusNet and ElectraNet, plan to leverage modular FACTS to facilitate the bulk transfer of renewable energy across regional boundaries. Using modular FACTS to improve the utilization of existing networks means reduced of wind generation curtailment, improved market access for hydro generation, and a lower probability of unserved energy following retirement of fossil fuel generators.

Publishing Entity

CIGRE

Authors

    • J. Bridge (AusNet)
    • A. Kingsmill (TransGrid)
    • H. Klingenberg (ElectraNet)
    • P. Harrington
    • B. Kelly

Presented at

CIGRE Johannessburg, 2019

Improve energy security, optimize economic dispatch and reduce renewable curtailment, increase transfer capacity, renewable integration, cost-benefit analysis, increase transfer capacity, Modular FACTS

Advancements in Distributed Power Flow Control

Advancements in Distributed Power Flow Control                                       

Many considerations for implementing advanced power flow control in real grids have been neglected in the past. This paper breaks down these neglected considerations. It proposes an agent-based power flow control system, including necessary hardware components, control algorithm, monitoring underlying distribution grids, communication technology and protocols, and the interface with the grid operator’s control center.

Publishing Entity

IEEE

Authors

    • O. Pohl (TU Dortmund)
    • F. Rewald (TU Dortmund)
    • S. Dalhaues (TU Dortmund)
    • P. Jorke (TU Dortmund)
    • C. Rehtanz (TU Dortmund)
    • C. Wietfield (TU Dortmund)
    • A. Kubis (PSI Software)
    • R. Tamgue (PSI Software)
    • D. Kirsten (ACCANTAS Ltd)

Hardware testing, communication and control, Power system operation, increase transfer capacity, Distributed FACTS, Modular FACTS