TY - JOUR
T1 - A multi-timescale scheduling approach for stochastic reliability in smart grids with wind generation and opportunistic demand
AU - He, Miao
AU - Murugesan, Sugumar
AU - Zhang, Junshan
PY - 2013
Y1 - 2013
N2 - In this study, we focus on the stochastic reliability of smart grids with two classes of energy users - traditional energy users and opportunistic energy users (e.g., smart appliances or electric vehicles), and investigate the procurement of energy supply from both conventional generation (base-load and fast-start) and wind generation via multi-timescale scheduling. Specifically, in day-ahead scheduling, with the distributional information of wind generation and demand, we characterize the optimal procurement of the energy supply from base-load generation and the day-ahead price; in real-time scheduling, with the realizations of wind generation and the demand of traditional energy users, we optimize real-time price to manage opportunistic demand so as to achieve system-wise reliability and efficiency. More specifically, we consider two different models for opportunistic energy users: non-persistent and persistent, and characterize the optimal scheduling and pricing decisions for both models by exploiting various computational and optimization tools. Numerical results demonstrate that the proposed scheduling and pricing schemes can effectively manage opportunistic demand and enhance system reliability, thus have the potential to improve the penetration of wind generation.
AB - In this study, we focus on the stochastic reliability of smart grids with two classes of energy users - traditional energy users and opportunistic energy users (e.g., smart appliances or electric vehicles), and investigate the procurement of energy supply from both conventional generation (base-load and fast-start) and wind generation via multi-timescale scheduling. Specifically, in day-ahead scheduling, with the distributional information of wind generation and demand, we characterize the optimal procurement of the energy supply from base-load generation and the day-ahead price; in real-time scheduling, with the realizations of wind generation and the demand of traditional energy users, we optimize real-time price to manage opportunistic demand so as to achieve system-wise reliability and efficiency. More specifically, we consider two different models for opportunistic energy users: non-persistent and persistent, and characterize the optimal scheduling and pricing decisions for both models by exploiting various computational and optimization tools. Numerical results demonstrate that the proposed scheduling and pricing schemes can effectively manage opportunistic demand and enhance system reliability, thus have the potential to improve the penetration of wind generation.
KW - Demand response
KW - Markov decision process
KW - multi-timescale scheduling
KW - opportunistic energy user
KW - real-time pricing
KW - reliability
KW - wind generation
UR - http://www.scopus.com/inward/record.url?scp=84875054475&partnerID=8YFLogxK
U2 - 10.1109/TSG.2012.2237421
DO - 10.1109/TSG.2012.2237421
M3 - Article
AN - SCOPUS:84875054475
SN - 1949-3053
VL - 4
SP - 521
EP - 529
JO - IEEE Transactions on Smart Grid
JF - IEEE Transactions on Smart Grid
IS - 1
M1 - 6461494
ER -