Future control architecture and emerging observability needs

Morch, Andrei; Jakobsen, Sigurd Hofsmo; Visscher, K.; Marinelli, Mattia

doi:10.1109/powereng.2015.7266325

Cited by 13 publications

(11 citation statements)

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“…According to Equations (14) and (23), the optimization formulations depend on the covariances of the historic imbalance signals E[δδ T ]. The covariances of the historic imbalance further depend on the time interval that is used in the simulation and even real time operation.…”

Section: Impact Of Time Intervalmentioning

confidence: 99%

“…These range from developing proper control schemes for individual component operation such as hierarchical aggregation method [9,10] to radical rethinking of system operations [11][12][13][14]. Traditionally, the system is kept secure by distinguishing the role between transmission system operators (TSO) and distribution system operators (DSO).…”

Section: Introductionmentioning

confidence: 99%

“…To address the aforementioned problem, the European FP7 project ELECTRA IRP proposes and develops a Web-of-Cells (WoC) architecture for operating the future power system [11][12][13][14]. In this approach, the power systems operation is divided into connected cells, each responsible for their own balancing and voltage control, thus establishing a robust, decentralized horizontal decomposition as opposed to the conventional centralized and vertical system operation.…”

Section: Introductionmentioning

confidence: 99%

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Robust Allocation of Reserve Policies for a Multiple-Cell Based Power System

Lan²,

Heussen³

et al. 2018

Energies

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This paper applies a robust optimization technique for coordinating reserve allocations in multiple-cell based power systems. The linear decision rules (LDR)-based policies were implemented to achieve the reserve robustness, and consist of a nominal power schedule with a series of linear modifications. The LDR method can effectively adapt the participation factors of reserve providers to respond to system imbalance signals. The policies considered the covariance of historic system imbalance signals to reduce the overall reserve cost. When applying this method to the cell-based power system for a certain horizon, the influence of different time resolutions on policy-making is also investigated, which presents guidance for its practical application. The main results illustrate that: (a) the LDR-based method shows better performance, by producing smaller reserve costs compared to the costs given by a reference method; and (b) the cost index decreases with increased time intervals, however, longer intervals might result in insufficient reserves, due to low time resolution. On the other hand, shorter time intervals require heavy computational time. Thus, it is important to choose a proper time interval in real time operation to make a trade off.

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Section: Impact Of Time Intervalmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Robust Allocation of Reserve Policies for a Multiple-Cell Based Power System

Lan²,

Heussen³

et al. 2018

Energies

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“…A third key issue is to ensure the interoperability of future smart grids. According to [5], the feasible functional architectures for the future require either centralized or decentralized management. Web of Cells architecture, developed in the frame of the ELECTRA project, converges towards a decentralized management scheme.…”

Section: State Of the Artmentioning

confidence: 99%

Fractal Grid – towards the future smart grid

Rétière

Muratore

Kariniotakis

et al. 2017

CIRED - Open Access Proceedings Journal

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In the last two decades, electricity grids have faced many challenges that they were not designed to handle. These include integrating weather-dependent renewables, distributed generators, storage units and other advanced components, as well as taking into account active demand. These challenges, together with the ageing of infrastructures, make it more difficult to deliver costeffective, reliable power. To overcome these issues requires creating new network architectures. The research project Fractal Grid proposes fractality as a core concept to model, analyze and design smart grids in their evolution up to 2030 and beyond. This paper presents the project, its methodological approach and the first results.

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“…The EU FP7 project ELECTRA (electrairp.eu) addresses the challenges for the future 2030+ power system with deployment of RES across all voltage levels. One of the work packages called 'Increased Observability' deals with the observability of the power system and the first findings regarding future observables and observability needs and are published in [1] and [2]. The two papers point out the crucial need to evolve and improve the present monitoring/observing schemes as well as introducing new observables to develop new control schemes and improve the existing ones.…”

Section: Introductionmentioning

confidence: 99%

Improved power quality monitoring through phasor measurement unit data interpretation

Pertl

Marinelli

Bindner

2015

2015 50th International Universities Power Engineering Conference (UPEC)

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The observability needs in future power systems will change radically due to the continuing implementation of renewable energy sources at all voltage levels. Especially in distribution grids new observables will be needed in order to monitor the state of the power system sufficiently and to perform the correct actions for operating the system. In future power systems more measuring sensors including phasor measurement units will be available distributed all over the power system. They can and should be utilized to increase the observability of the power system. In this paper the impact of photovoltaic and wind power production on the voltage unbalance was analyzed. PMU data and NTP-synchronized data from two different MV networks were used. It has been found that PV production has only a minor negative impact on the voltage unbalance whereas the wind power production has a great positive impact. The voltage unbalance factor (VUF) could be a 'new' observable for a particular power system condition. Information about the actual injected wind power for a certain grid area could be derived without knowing/measuring the real wind power injection.

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Future control architecture and emerging observability needs

Cited by 13 publications

References 1 publication

Robust Allocation of Reserve Policies for a Multiple-Cell Based Power System

Robust Allocation of Reserve Policies for a Multiple-Cell Based Power System

Fractal Grid – towards the future smart grid

Improved power quality monitoring through phasor measurement unit data interpretation

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