Hitachi Energy @ IEEE PES T&D 2024

Due to changing utility infrastructure with regards to increased penetration of inverter-based generation and retirement of conventional generation, dynamic shunt compensation solutions are becoming ever more vital for transmission system operation and reliability. The emergence of Voltage Source Converter (VSC), STATCOMs with energy storage, and Synchronous Condensers, have increased potential grid stabilization applications through grid-forming technologies. As utility requirements become more complex, the optimal solution may be a combination of available and future technology. This tutorial presents approaches to planning and functional specification, technology principles with example installations, a comparative evaluation of performance, and an analysis of future trends expected to influence technology development and its place in the market.

The increased application of Voltage-Source Converter (VSC) technology has led to many new challenges and innovative applications of this technology. STATCOMs and VSC-HVDC are the two most common applications. This panel session describes emerging terms, new technologies, experimental configuration topologies as well as some implementation experiences with regard to these technologies. A key focus of this panel session is also the grid-stabilization applications and algorithms that are currently being applied worldwide. Some topics that are proposed to be discussed are: A. Grid-forming and Grid-following technologies B. VSC-STATCOM applications C. VSC-HVDC applications

The next 10-20 years will witness an unprecedented buildout of the transmission infrastructure, a necessity to support new resource development. This panel session will delve into the challenges and solutions associated with achieving a transmission system apt for a clean energy future. It will highlight the need for a more proactive and strategic approach in planning, designing, building, and operating existing infrastructure upgrades. The discussion will also encompass new transmission projects and the role of grid enhancing technologies. These elements combined can lead to effective and less costly implementation, paving the way for breakthroughs in the field. Join us as we explore the solutions we have at hand and the breakthroughs we need to ensure a sustainable energy future.

This panel will review positive impacts of HVDC and FACTS have on system resilience. Potential vulnerabilities of the bulk power system through the interconnected nature ac systems as well as through SCADA and other communication systems will be reviewed. Followed by a discussion of how FACTS and HVDC protection, control, and communication systems differ from those for conventional ac systems. HVDC and FACTS systems also have the ability to improve the resilience of the bulk power system. FACTS devices, LCC HVDC systems, VSC-based systems, and multiterminal DC grids will be compared in terms of their abilities to impact system resilience in the face of major disturbances or cyber-physical events. Potential detection and mitigation ideas will be presented. Example case studies based on existing or proposed systems will be presented.

As greater penetration of high-voltage direct current (HVdc) systems happens in the world, there are technical challenges that need to be addressed to create direct current (dc) system or grid. The dc system can be a multi-terminal dc (MTdc) system. For such systems or grids, it is imperative to understand the means to scale such systems with flexibility, integrate breakers and protection schemes, and operate with equipment from different vendors. These are some of the challenges identified during multiple workshops that have been conducted recently on HVdc systems and will be discussed in detail during this panel session. The session will include speakers from HVdc vendors, national laboratory, and US Department of Energy (DOE) to discuss the latest developments in breakers and interoperability. These include developments in US, Europe, and other parts of the world. The focus in this session will be to converge upon the next set of challenges that need to be addressed, while reviewing the current state-of-the-art and ongoing research & development. The session will include 4-5 speakers with each speaker presenting for 20 minutes. There will be a panel discussion at the end of the session. This session will provide content that power system engineers, researchers, and policy makers will be interested in.

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TVP: the ultimate transient voltage protection benefits