Abstracts:Large-scale power systems are undergoing radical change. The energy transition to a low-carbon or even carbon-free economy is driving the production of electricity from noncarbon primary sources and increasing the electrification of energy-intensive sectors. This shift raises critical questions about integrating renewable energy sources into the electricity grid and which power systems stakeholders must address.

Abstracts:Provides society information that may include news, reviews or technical notes that should be of interest to practitioners and researchers.

Abstracts:Provides society information that may include news, reviews or technical notes that should be of interest to practitioners and researchers.

Abstracts:Presents reviews for the following list of books, Inverter-Based Resources: Modeling and Stability Analysis.

Abstracts:Historically, engineering design has been regarded as a neutral force, a means to an end in the vast tapestry of human endeavors. However, this perception is undergoing a profound transformation as a chorus of voices rises, advocating for an approach that integrates ethical choices and positive values into the very fabric of design.

Abstracts:Electromagnetic transient (EMT) models are becoming vital for understanding the power systems performance with growing penetrations of inverter-based resources (IBR). However, without appropriate model testing and validation, the accuracy of the power system analysis is far from guaranteed. A thorough model examination process that utilizes a combination of approaches to ensure model accuracy, robustness, and usability provides confidence in the EMT models and the outcome of the power system assessment using these models. Model testing ensures that the model is of good quality, numerically robust and has ability to appropriately represent plant's response to various operating conditions. During the model testing phase, a large number of simulation tests are applied to the model to check its usability, quality, performance, and consistency. While model testing provides confidence in the usability of the model, the accuracy of the model can be achieved through model validation process. There are various stages of model life cycle where model validation can be carried out using various approaches. Each stage of model validation has its own advantages and disadvantages. These approaches are generally divided in three categories: validating a single plant in a single-machine infinite-bus configuration, validating the full-scale system model consisting of many plants, and validating either a single plant or a group of plants using hardware-in-the-loop setup. When evaluating EMT models and validation outcomes, it is important to apply engineering judgment along with other metrics such as error tolerances and accuracy bands. Both model acceptance testing and validation are not straightforward and require time and resources, however, adequate and accurate models provide confidence to power system planners and operators to develop the power system operating envelope.

Abstracts:The use of electromagnetic-transient (EMT) models to study the behavior of power systems with high share of inverter-based resource (IBR) systems has become increasingly vital to ensure power system security over the last decade. Multiple system operators (SO) around the world have developed large scale EMT models to capture the interactions between the grid and IBR systems and between multiple IBR systems themselves. Four different SO, from Australia, Denmark, Finland, and Texas, USA, present learnings and examples of their methodologies for creating, maintaining and using large scale EMT models to ensure ongoing system security across their respective networks.