117 research outputs found
Smart Reconfiguration of Distribution Grids using Agent-based Technology
The multi-Agent system designed based on automatic reconfiguration principles was programmed as a set of AgentSpeak codes in which work and cooperate inside a common simulated distribution grid environment. Creating the application meant programming the agents on the one side, including the actions logic control to be executed relying on the environment changes, and on the other side the environment itself. That stated, the environment notion was solely based on the chosen distribution grid concept and explored according to the proposed problematic
Market-based coordination for domestic demand response in low-carbon electricity grids
Efforts towards a low carbon economy are challenging the electricity industry. On the
supply-side, centralised carbon-intensive power plants are set to gradually decrease
their contribution to the generation mix, whilst distributed renewable generation is to
successively increase its share. On the demand-side, electricity use is expected to increase
in the future due to the electrification of heating and transport. Moreover, the
demand-side is to become more active allowing end-users to invest in generation and
storage technologies, such as solar photovoltaics (PV) and home batteries. As a result,
some network reinforcements might be needed and instrumentation at the users’ end
is to be required, such as controllers and home energy management systems (HEMS).
The electricity grid must balance supply and demand at all times in order to maintain
technical constraints of frequency, voltage, and current; and this will become more challenging
as a result of this transition. Failure to meet these constraints compromises the
service and could damage the power grid assets and end-users’ appliances. Balancing
generation, although responsive, is carbon-intensive and associated with inefficient asset
utilisation, as these generators are mostly used during peak hours and sit idle the
rest of the time. Furthermore, energy storage is a potential solution to assist the balancing
problem in the presence of non-dispatchable low-carbon generators; however, it is
substantially expensive to store energy in large amounts. Therefore, demand response
(DR) has been envisioned as a complementary solution to increase the system’s resilience
to weather-dependent, stochastic, and intermittent generation along with variable
and temperature-correlated electric load. In the domestic setting, operational flexibility
of some appliances, such as heaters and electric cars, can be coordinated amongst
several households so as to help balance supply and demand, and reduce the need of
balancing generators.
Against this background, the electricity supply system requires new organisational
paradigms that integrate DR effectively. Although some dynamic pricing schemes have
been proposed to guide DR, such as time of use (ToU) and real-time pricing (RTP), it
is still unclear how to control oscillatory massive responses (e.g., large fleet of electric
cars simultaneously responding to a favourable price). Hence, this thesis proposes an
alternative approach in which households proactively submit DR offers that express
their preferences to their respective retailer in exchange for a discount. This research
develops a computational model of domestic electricity use, and simulates appliances
with operational flexibility in order to evaluate the effects and benefits of DR for both
retailers and households. It provides a representation for this flexibility so that it can
be integrated into specific DR offers. Retailers and households are modelled as computational
agents. Furthermore, two market-based mechanisms are proposed to determine
the allocation of DR offers. More specifically, a one-sided Vickrey-Clarke-Groves
(VCG)-based mechanism and penalty schemes were designed for electricity retailers to
coordinate their customers’ DR efforts so as to ameliorate the imbalance of their trading
schedules. Similarly, a two-sided McAfee-based mechanism was designed to integrate
DR offers into a multi-retailer setting in order to reduce zonal imbalances. A suitable
method was developed to construct DR block offers that could be traded amongst retailers.
Both mechanisms are dominant-strategy incentive-compatible and trade off a small
amount of economic efficiency in order to maintain individual rationality, truthful reporting,
weak budget balance and tractable computation. Moreover, privacy preserving
is achieved by including computational agents from the independent system operator
(ISO) as intermediaries between each retailer and its domestic customers, and amongst
retailers. The theoretical properties of these mechanisms were proved using worst-case
analysis, and their economic effects were evaluated in simulations based on data from a
survey of UK household electricity use. In addition, forecasting methods were assessed
on the end-users’ side in order to make better DR offers and avoid penalties. The results
show that, under reasonable assumptions, the proposed coordination mechanisms
achieve significant savings for both end-users and retailers, as they reduce the required
amount of expensive balancing generation
Value Creation through Co-Opetition in Service Networks
Well-defined interfaces and standardization allow for the composition of single Web services into value-added complex services. Such complex Web Services are increasingly traded via agile marketplaces, facilitating flexible recombination of service modules to meet heterogeneous customer demands. In order to coordinate participants, this work introduces a mechanism design approach - the co-opetition mechanism - that is tailored to requirements imposed by a networked and co-opetitive environment
Contributions to energy informatics, data protection, AI-driven cybersecurity, and explainable AI
This cumulative dissertation includes eleven papers dealing with energy informatics, privacy, artificial intelligence-enabled cybersecurity, explainable artificial intelligence, ethical artificial intelligence, and decision support. In addressing real-world challenges, the dissertation provides practical guidance, reduces complexity, shows insights from empirical data, and supports decision-making. Interdisciplinary research methods include morphological analysis, taxonomies, decision trees, and literature reviews. From the resulting design artifacts, such as design principles, critical success factors, taxonomies, archetypes, and decision trees ¬ practitioners, including energy utilities, data-intensive artificial intelligence service providers, cybersecurity consultants, managers, policymakers, regulators, decision-makers, and end users can benefit. These resources enable them to make informed and efficient decisions
Market Engineering
This open access book provides a broad range of insights on market engineering and information management. It covers topics like auctions, stock markets, electricity markets, the sharing economy, information and emotions in markets, smart decision-making in cities and other systems, and methodological approaches to conceptual modeling and taxonomy development. Overall, this book is a source of inspiration for everybody working on the vision of advancing the science of engineering markets and managing information for contributing to a bright, sustainable, digital world. Markets are powerful and extremely efficient mechanisms for coordinating individuals’ and organizations’ behavior in a complex, networked economy. Thus, designing, monitoring, and regulating markets is an essential task of today’s society. This task does not only derive from a purely economic point of view. Leveraging market forces can also help to tackle pressing social and environmental challenges. Moreover, markets process, generate, and reveal information. This information is a production factor and a valuable economic asset. In an increasingly digital world, it is more essential than ever to understand the life cycle of information from its creation and distribution to its use. Both markets and the flow of information should not arbitrarily emerge and develop based on individual, profit-driven actors. Instead, they should be engineered to serve best the whole society’s goals. This motivation drives the research fields of market engineering and information management. With this book, the editors and authors honor Professor Dr. Christof Weinhardt for his enormous and ongoing contribution to market engineering and information management research and practice. It was presented to him on the occasion of his sixtieth birthday in April 2021. Thank you very much, Christof, for so many years of cooperation, support, inspiration, and friendship
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