Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/121968
Title: FREQUENCY CONTROL VIA DISTRIBUTED DEMAND RESPONSE IN SMART GRID
Authors: MOHAMMAD REZA VEDADY MOGHADAM NANEHKARAN
Keywords: Smart grid; Demand Response; Randomized algorithm; Frequency control; Renewable energy; Electric vehicle
Issue Date: 14-Aug-2015
Source: MOHAMMAD REZA VEDADY MOGHADAM NANEHKARAN (2015-08-14). FREQUENCY CONTROL VIA DISTRIBUTED DEMAND RESPONSE IN SMART GRID. ScholarBank@NUS Repository.
Abstract: Frequency control is essential to maintain the stability and reliability of power systems. Traditionally, primary/secondary/tertiary reserve services provided by fossil-fuel based power plants are used to stabilize the power system frequency, which, however, incur high operational costs. In future smart grid, demand response (DR) is an effective method to control the users? demand in real-time, which can be utilized to stabilize the power system frequency at lower cost. This thesis is devoted to investigating efficient methods for DR-enabled distributed frequency control in smart gird. First, we propose a new frequency control algorithm based on randomized on-off operation of distributed smart appliances (SAPPs), to stabilize the power system frequency without the need of conventional primary reserve service. We characterize the impact of randomized response of SAPPs on the system frequency and thereby analyze the performance of the proposed frequency control algorithm. Next, we extend the proposed algorithm to frequency control via distributed charging/discharging operation of electric vehicles (EVs) that are connected to the grid. We optimize the EVs? response rates to minimize the cost for implementing frequency control subject to given performance requirement. Last, we study real-time pricing schemes to incentivize distributed self-interested aggregators to reschedule their demand upon a contingency of supply deficit to achieve cost-effective frequency recovery in smart grid.
URI: http://scholarbank.nus.edu.sg/handle/10635/121968
Appears in Collections:Ph.D Theses (Open)

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