Wind Scalability and Performance in the Real World: A Performance Analysis of Recently Deployed US Wind Farms

Author(s):  
G. Bothun ◽  
B. Bekker
2012 ◽  
Vol 5 (4) ◽  
pp. 308-316 ◽  
Author(s):  
François Quitin ◽  
Claude Oestges ◽  
Ali Panahandeh ◽  
François Horlin ◽  
Philippe De Doncker

2021 ◽  
pp. 73-82
Author(s):  
Dorina Bano ◽  
Tom Lichtenstein ◽  
Finn Klessascheck ◽  
Mathias Weske

Process mining is widely adopted in organizations to gain deep insights about running business processes. This can be achieved by applying different process mining techniques like discovery, conformance checking, and performance analysis. These techniques are applied on event logs, which need to be extracted from the organization’s databases beforehand. This not only implies access to databases, but also detailed knowledge about the database schema, which is often not available. In many real-world scenarios, however, process execution data is available as redo logs. Such logs are used to bring a database into a consistent state in case of a system failure. This paper proposes a semi-automatic approach to extract an event log from redo logs alone. It does not require access to the database or knowledge of the databaseschema. The feasibility of the proposed approach is evaluated on two synthetic redo logs.


2018 ◽  
Vol 71 (8) ◽  
pp. 1663-1671 ◽  
Author(s):  
Hettie Roebuck ◽  
Kun Guo ◽  
Patrick Bourke

Careful systematic tests of hearing ability may miss the cognitive consequences of sub-optimal hearing when listening in the real world. In Experiment 1, sub-optimal hearing is simulated by presenting an audiobook at a quiet but discriminable level over 50 min. Recall of facts, words and inferences are assessed and performance compared to another group at a comfortable listening volume. At the quiet intensity, participants are able to detect, discriminate and identify spoken words but do so at a cost to sequential accuracy and fact recall when attention must be sustained over time. To exclude other interpretations, the effects are studied in Experiment 2 by comparing recall to the same sentences presented in isolation. Here, the differences disappear. The results demonstrate that the cognitive consequences of listening at low volume arise when sustained attention is demanded over time.


2018 ◽  
Vol 43 (3) ◽  
pp. 258-271 ◽  
Author(s):  
EMMA WILLIS

What does the #MeToo movement reveal about how acting is understood at the present time, both in practice and by the public at large? The claim of one convicted abuser, New Zealand acting coach Rene Naufahu, was that his sexual offending in the classroom was simply preparing his students for the ‘real world of acting’. Drawing from Elin Diamond's argument that dramatic realism does not simply reflect the real but in fact produces it, I examine how figures like Naufahu promulgate certain notions of acting in order to produce a reality that legitimates abusive behaviour. Furthermore, I suggest that this behaviour is often a performance of acting itself whereby the actor, director or coach, in a selectively self-reflexive manner, exploits their professional ‘role’ in order to exert power over their victim. I argue that one way of contesting real-world practices that rely on hegemonic assumptions of what acting is or should be is to redeploy the critical terminology of acting to analyse and expose such abuses for the acts that they are.


Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5250
Author(s):  
Pejman Peidaee ◽  
Akhtar Kalam ◽  
Juan Shi

In conventional method protection schemes are devised for certain operation conditions with fixed settings throughout their operation life, however, protection systems in interconnected distribution networks rely on a detailed analysis of fault current contribution and variation in operation conditions under real-world scenarios. In fact, the concept of Adaptive Protection System (APS) and possibility of the adjustment for protection settings within modern Intelligent Electronic Devices (IEDs) have introduced desired functionalities for protection systems to cope with complex operation scenarios envisioned within future power system networks. In this paper, a novel protection system based on Multi-Agent System (MAS) and heuristic decision-making is proposed to update protection settings of the protection IEDs with respect to prevailing operation conditions in an interconnected distribution network. The adopted methodology is reliant on real-time simulation of a distribution network interconnected with Doubly-fed Induction Generator (DFIG) wind farms where different fault scenarios are applied to evaluate the functionality and performance of the proposed Multi-Agent Protection System (MAPS). In addition to that, combination of knowledge sharing between different protection IEDs and logic reasoning are integrated to fulfill protection task under real-world operation scenarios. The significance of the proposed MAPS is the improvement in protection system of the interconnected distribution network.


2001 ◽  
Vol 13 (10) ◽  
pp. 841-868
Author(s):  
T. Fahringer ◽  
P. Blaha ◽  
A. Hössinger ◽  
J. Luitz ◽  
E. Mehofer ◽  
...  

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