Papers by Adamantios Marinakis
2018 15th International Conference on the European Energy Market (EEM)
IEEE Transactions on Power Systems, Aug 1, 2010
The possibility for market participants to simultaneously place their bids in different markets a... more The possibility for market participants to simultaneously place their bids in different markets across an interconnection is investigated in this paper. Transaction schedulers settle multilateral transactions among participants, while a central entity coordinates the overall operation through interactions with the transaction schedulers. Two issues are dealt with in this context. First, the market participants are allowed to place their bids simultaneously in more than one transactions scheduler's market, and, second, the available transmission capacity is fairly shared among the transaction schedulers. Economically interesting transactions are favored, while confidentiality of market data and independence of transaction schedulers' clearing mechanisms are preserved. The corresponding iterative algorithm is illustrated in detail on a 15-bus as well as the IEEE-RTS system.
2009 6th International Conference on the European Energy Market, May 1, 2009
The possibility for market participants to place their bids in markets where they are not geograp... more The possibility for market participants to place their bids in markets where they are not geographically located is investigated in this paper. A framework for managing the resulting congestion is proposed. The procedure is illustrated and commented on a test system.
2007 IEEE Lausanne Power Tech, 2007
A general framework is proposed for the control of phase shifting transformers owned by several T... more A general framework is proposed for the control of phase shifting transformers owned by several TSOs, taking into account their interactions. The proposed solution is the Nash equilibrium of a sequence of optimizations performed by the various TSOs, each of them taking into account the other TSOs' control settings as well as operating constraints relative to the whole system. The method is applied to a linearized network model and illustrated on the IEEE 118-bus system.
2015 12th International Conference on the European Energy Market (EEM), 2015
2015 IEEE First International Conference on Big Data Computing Service and Applications, 2015
Decreasing cost and increasing capabilities of instrumentation, networks and data repositories ha... more Decreasing cost and increasing capabilities of instrumentation, networks and data repositories have pervaded the industrial automation and power markets and opened the door for large scale collection and analysis of data. There are a variety of potential architectures and technology stacks that can be applied to these types of activities. However, no single technology stack or architecture fits all the scenarios. With limited data science training and experience, it is difficult and time consuming for highly specialized domain experts to choose the optimal approach. In this paper, we introduce an architectural pattern for the design of a flexible core analytics platform which is extensible using different pipelines. The pipeline pattern provides an accelerated start to implementing industrial analytics applications. The platform enables domain experts to compose pipelines in series and in parallel at scale with the right quality attribute trade-offs to deliver significant business value. Our use of the proposed platform is illustrated with real-world industrial applications, which necessitate various data handling and processing capabilities. These examples show the importance of the platform to non-data experts: reducing the learning curve for applying data science, providing a systematic rating process for choosing the pipeline types, and lowering the barriers for industrial businesses to leverage analytics.
Power Systems, IEEE Transactions on, Feb 1, 2010
More and more transmission system operators, noticeably in Europe, equip their systems with phase... more More and more transmission system operators, noticeably in Europe, equip their systems with phase shifting transformers to counteract transit flows that take place in a large meshed interconnection. This paper proposes algorithms for the coordinated control of several phase shifters by one operator with the objective of reducing the unscheduled flow through its system. Minimum reduction of unscheduled flow and minimum deviation with respect to present operating point are sought in order to minimize the trouble caused, while ensuring secure operation. Attention is paid to combining pre-and post-contingency controls. The resulting algorithms, simple and compatible with real-time applications, are illustrated on a realistic test system. Index Terms-Corrective control, correctively secure operation, optimal power flow, phase shifting transformer, preventive control, transit flow, unscheduled flow. I. INTRODUCTION A. Transit Flows: Causes and Consequences L OOP flows, parallel path flows, inadvertent flows, and circulating flows are synonymous terms that basically refer to the fact that power can flow through several paths in a meshed network [1]. The term transit flow is used by European transmission system operators (ETSO) [2] and is adopted throughout the paper. This share of flow between parallel paths has been observed in large interconnections since the early 1960s. In the USA, parallel flows have been reported in the PJM interconnection as well as in the WECC system [1]. Transit flows are also common in Europe, where the borders of some countries are crossed, at least partially, by power exchanges involving other countries [3], [4]. This situation is symbolically depicted in Fig. 1 where a fraction of the power due to external transaction passes through Manuscript
2010 7th International Conference on the European Energy Market, 2010
The possibility for market participants to place their bids in markets where they are not geograp... more The possibility for market participants to place their bids in markets where they are not geographically located is investigated in this paper. An iterative procedure enabling the simultaneous clearing of those overlapping markets by transaction schedulers while managing the resulting pre and post-contingency congestion is proposed. Transmission losses are calculated during the iterations and are accounted for by allocating them to the various transaction schedulers. The procedure is illustrated and commented on a test system.
2014 Power Systems Computation Conference, 2014
ABSTRACT
IEEE Transactions on Power Systems, 2007
An approach inspired by model predictive control is proposed to determine a sequence of control a... more An approach inspired by model predictive control is proposed to determine a sequence of control actions aimed at alleviating thermal overloads. The algorithm brings the line currents below their limits in the time interval left by protections while accounting for constraints on control changes at each step. Its closed-loop nature allows to compensate for model inaccuracies.
2012 9th International Conference on the European Energy Market, 2012
2009 6th International Conference on the European Energy Market, 2009
The possibility for market participants to place their bids in markets where they are not geograp... more The possibility for market participants to place their bids in markets where they are not geographically located is investigated in this paper. A framework for managing the resulting congestion is proposed. The procedure is illustrated and commented on a test system.
2007 IEEE Lausanne Power Tech, 2007
An approach inspired of Model Predictive Control is proposed to determine a sequence of control a... more An approach inspired of Model Predictive Control is proposed to determine a sequence of control actions aimed at alleviating thermal overloads in emergency conditions. The algorithm brings the line currents below their limits in the time interval left by protections, while accounting for constraints on control changes at each step. Its closed-loop nature allows to compensate for measurement noise and model uncertainties.
2007 IEEE Lausanne Power Tech, 2007
A general framework is proposed for the control of phase shifting transformers owned by several T... more A general framework is proposed for the control of phase shifting transformers owned by several TSOs, taking into account their interactions. The proposed solution is the Nash equilibrium of a sequence of optimizations performed by the various TSOs, each of them taking into account the other TSOs' control settings as well as operating constraints relative to the whole system. The method is applied to a linearized network model and illustrated on the IEEE 118-bus system.
2013 IEEE Grenoble Conference, 2013
ABSTRACT
IEEE Transactions on Power Systems, 2000
This article has been accepted for inclusion in a future issue of this journal. Content is final ... more This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination.
IEEE Transactions on Power Systems, 2000
More and more transmission system operators, noticeably in Europe, equip their systems with phase... more More and more transmission system operators, noticeably in Europe, equip their systems with phase shifting transformers to counteract transit flows that take place in a large meshed interconnection. This paper proposes algorithms for the coordinated control of several phase shifters by one operator with the objective of reducing the unscheduled flow through its system. Minimum reduction of unscheduled flow and minimum deviation with respect to present operating point are sought in order to minimize the trouble caused, while ensuring secure operation. Attention is paid to combining pre-and post-contingency controls. The resulting algorithms, simple and compatible with real-time applications, are illustrated on a realistic test system. Index Terms-Corrective control, correctively secure operation, optimal power flow, phase shifting transformer, preventive control, transit flow, unscheduled flow. I. INTRODUCTION A. Transit Flows: Causes and Consequences L OOP flows, parallel path flows, inadvertent flows, and circulating flows are synonymous terms that basically refer to the fact that power can flow through several paths in a meshed network [1]. The term transit flow is used by European transmission system operators (ETSO) [2] and is adopted throughout the paper. This share of flow between parallel paths has been observed in large interconnections since the early 1960s. In the USA, parallel flows have been reported in the PJM interconnection as well as in the WECC system [1]. Transit flows are also common in Europe, where the borders of some countries are crossed, at least partially, by power exchanges involving other countries [3], [4]. This situation is symbolically depicted in Fig. 1 where a fraction of the power due to external transaction passes through Manuscript
IEEE Transactions on Power Systems, 2000
An approach inspired by model predictive control is proposed to determine a sequence of control a... more An approach inspired by model predictive control is proposed to determine a sequence of control actions aimed at alleviating thermal overloads. The algorithm brings the line currents below their limits in the time interval left by protections while accounting for constraints on control changes at each step. Its closedloop nature allows to compensate for model inaccuracies.
Power Tech, 2007 …, Jul 1, 2007
An approach inspired of Model Predictive Control is proposed to determine a sequence of control a... more An approach inspired of Model Predictive Control is proposed to determine a sequence of control actions aimed at alleviating thermal overloads in emergency conditions. The algorithm brings the line currents below their limits in the time interval left by protections, while accounting for constraints on control changes at each step. Its closed-loop nature allows to compensate for measurement noise and model uncertainties.
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Papers by Adamantios Marinakis