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SUMMARY:Plug-and-Play Control and Optimization in Power Systems
DTSTART:20151030T101500
DTEND:20151030T111500
DTSTAMP:20260411T111300Z
UID:5bb7bcfd98500b945bb47d527b626750d62f875ea66851236032ca52
CATEGORIES:Conferences - Seminars
DESCRIPTION:Florian Doerfler\, ETHZ\nThe conventional power systems operat
 ion architecture consists of a hierarchical layering of primary control\, 
 secondary regulation\, and tertiary optimization. These three layers range
  from fast to slow time scales\, from model-free feedback control to model
 -based optimization\, and from fully decentralized to centralized decision
  architectures. The increasing integration of distributed generation chall
 enges this hierarchical architecture due to larger and faster fluctuations
  in renewable power supply\, liberalized energy markets\, and the lack of 
 central decision-making authorities. In such a distributed generation envi
 ronment conventional operation strategies\, such as secondary frequency co
 ntrol\, centralized generation dispatch\, and market clearing mechanisms\,
  are not feasible. As a supplement\, distributed operation strategies thro
 ugh inverter-based sources\, controllable loads\, and fast-ramping generat
 ors have been extensively studied.\nIn this seminar\, we explore novel ope
 ration strategies for the three control and optimization layers and illumi
 nate some possibly-unexpected connections and dependencies among them. We 
 build upon a primary droop control strategy and motivate the need for addi
 tional secondary regulation. We find that averaging-based distributed seco
 ndary controllers offer the best combination of flexibility and performanc
 e. We further leverage these results to study the economic generation disp
 atch in a tertiary control layer. Surprisingly\, we show that the minimize
 rs of the economic dispatch optimization problem are in one-to-one corresp
 ondence with the set of steady-states reachable by droop control. This equ
 ivalence results in simple guidelines to select the control coefficients t
 o achieve primary\, secondary\, and tertiary control without time scale se
 parations and in a model-free and distributed fashion.\nFinally\, we stres
 s the idealistic assumptions underlying any droop-based control architectu
 re and propose two alternatives: a virtual oscillator control paradigm tha
 t includes primary droop control as well as an online power flow optimizat
 ion framework to replace secondary and tertiary control. We illustrate the
  performance and robustness of all of our designs through simulation studi
 es and small-scale microgrid experiments.Bio:My research interests are cen
 tered around distributed control in complex\, cyber-physical\, and network
 ed systems with applications to energy systems and coordination in multi-a
 gent systems.
LOCATION:ME C2 405 http://plan.epfl.ch/?zoom=20&recenter_y=5864084.17342&r
 ecenter_x=730960.62257&layerNodes=fonds\,batiments\,labels\,information\,p
 arkings_publics\,arrets_metro\,transports_publics&floor=2&q=me_c2%20405
STATUS:CONFIRMED
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