%0 Journal Article
%D Submitted
%T A Review of DC Fault Blocking Converters for HVDC Transmission Systems
%A Sakib, Munif Nazmus
%A Azad, Sahar Pirooz
%A Kazerani, Mehrdad
%G eng

%0 Journal Article
%D Submitted
%T A Review of the Protection of Microgrids with Converter-Based Resources
%A ZHANG, X
%A AZAD, SP
%G eng

%0 Conference Paper
%B 2020 IEEE Power & Energy Society General Meeting (PESGM)
%D 2020
%T A Comparative Study on Control Loop Interactions in VSC-HVDC Systems
%A Ahmadloo, Fatemeh
%A Azad, Sahar Pirooz
%B 2020 IEEE Power & Energy Society General Meeting (PESGM)
%I IEEE
%P 1–5
%G eng

%0 Conference Paper
%B 2020 IEEE Power & Energy Society General Meeting (PESGM)
%D 2020
%T A New Distance Protection Scheme for SCIG-based Wind Farms
%A Zare, Javad
%A Azad, Sahar Pirooz
%B 2020 IEEE Power & Energy Society General Meeting (PESGM)
%I IEEE
%P 1–5
%G eng

%0 Journal Article
%J IET Renewable Power Generation
%D 2020
%T Robust optimisation framework for SCED problem in mixed AC-HVDC power systems with wind uncertainty
%A Filabadi, Milad Dehghani
%A Azad, Sahar Pirooz
%B IET Renewable Power Generation
%I IET Digital Library
%V 14
%P 2563–2572
%G eng

%0 Journal Article
%J IET Generation, Transmission & Distribution
%D 2019
%T Control strategies to improve stability of LCC-HVDC systems with multiple MMC taps
%A Liu, Dalu
%A Kish, Gregory J
%A Azad, Sahar Pirooz
%B IET Generation, Transmission & Distribution
%I IET Digital Library
%V 13
%P 4685–4693
%G eng

%0 Journal Article
%J IET Renewable Power Generation, Special Issue: DC and HVDC system technologies
%D 2018
%T Analytic Framework for HVDC Grid Protection Algorithm Design in Phase and Modal Domains
%A W. Leterme
%A S. P. Azad
%A D. Van Hertem
%B IET Renewable Power Generation, Special Issue: DC and HVDC system technologies
%G eng

%0 Conference Paper
%B 2018 IEEE Power & Energy Society General Meeting (PESGM)
%D 2018
%T Feeder voltage management through smart inverter advanced functions and battery energy storage system
%A Nassif, Alexandre B
%A Greenwood-Madsen, Tom
%A Azad, Sahar Pirooz
%A Teshome, Dawit F
%B 2018 IEEE Power & Energy Society General Meeting (PESGM)
%I IEEE
%P 1–5
%G eng

%0 Journal Article
%J IET Renewable Power Generation
%D 2018
%T HVDC grid protection algorithm design in phase and modal domains
%A Leterme, Willem
%A Azad, Sahar Pirooz
%A Van Hertem, Dirk
%B IET Renewable Power Generation
%I IET Digital Library
%V 12
%P 1538–1546
%G eng

%0 Journal Article
%J IEEE Transactions on Power Delivery
%D 2017
%T A Fast Local Bus Current-Based Primary Relaying Algorithm for HVDC Grids
%A S. P. Azad
%A D. Van Hertem
%K Circuit faults
%K computation capacity
%K converter outages
%K Current measurement
%K current sensors
%K DC buses
%K erroneous circuit-breaker trips
%K fault currents
%K fault detection
%K fault location
%K faults locations
%K high-voltage direct current
%K HVDC grids
%K HVDC power transmission
%K HVDC transmission
%K HVDC transmission lines
%K line outages
%K local bus current-based primary relaying algorithm
%K measurement noise
%K power grids
%K power system protection
%K power system relaying
%K power system transients
%K power transmission lines
%K power transmission protection
%K power transmission reliability
%K Protective relaying
%K Sensors
%K system transients
%K Transmission line measurements
%K transmission lines
%K Voltage measurement
%B IEEE Transactions on Power Delivery
%V 32
%P 193-202
%8 February
%G eng

%0 Journal Article
%D 2017
%T Protection of HVDC grids using unidirectional DC circuit breakers and fast local protection algorithm
%A Mokhberdoran, Ataollah
%A Azad, S Pirooz
%A Van Hertem, Dirk
%A Silva, Nuno
%A Carvalho, Adriano
%I IET Digital Library
%G eng

%0 Conference Paper
%B 13th IET International Conference on AC and DC Power Transmission (ACDC 2017)
%D 2017
%T Protection of HVDC Grids Using Unidirectional DC Circuit Breakers and Fast Local Protection Algorithm
%A A. Mokhberdoran
%A S. P. Azad
%A D. Van Hertem
%A N. Silvao
%A A. Carvalho
%K circuit breakers
%K current releasing DC circuit breaker
%K DC circuit breaker
%K fast local protection algorithm
%K HVDC grid
%K HVDC grid protection
%K HVDC power transmission
%K multiterminal HVDC grid
%K nonunit protection algorithm
%K power grids
%K power transmission protection
%K Protection
%K unidirectional DC circuit breakers
%K unidirectional protection
%B 13th IET International Conference on AC and DC Power Transmission (ACDC 2017)
%P 1-6
%8 February
%G eng

%0 Journal Article
%J IEEE Transactions on Power Systems
%D 2016
%T Decentralized Supplementary Control of Multiple LCC-HVDC Links
%A S. P. Azad
%A J. A. Taylor
%A R. Iravani
%K closed loop systems
%K closed-loop stability
%K communication delays
%K communication noise
%K Damping
%K decentralised control
%K Decentralized control
%K decentralized supplementary control
%K decentralized wide-area coordinated supplementary control
%K eigen analysis
%K eigenvalues and eigenfunctions
%K Generators
%K high voltage direct current (HVDC)
%K high voltage direct current links
%K HVDC power transmission
%K HVDC transmission
%K inter-area oscillations
%K interarea oscillatory mode damping
%K interconnected AC system
%K Mathematical model
%K multiple LCC-HVDC links
%K multiple line-commutated converter
%K optimal control
%K power system interconnection
%K power system stability
%K power transmission control
%K power transmission lines
%K sparsity
%K time-domain analysis
%K time-domain simulation
%K Voltage control
%B IEEE Transactions on Power Systems
%V 31
%P 572-580
%8 January
%G eng

%0 Journal Article
%J Electric Power Systems Research
%D 2016
%T Fast Breaker Failure Backup Protection for HVDC Grids
%A S. P. Azad
%A W. Leterme
%A D. Van Hertem
%K Backup protection
%K breaker failure
%K HVDC grid
%K power system protection
%K VSC HVDC
%B Electric Power Systems Research
%V 138
%P 99 - 105
%G eng
%U http://www.sciencedirect.com/science/article/pii/S0378779616300505

%0 Journal Article
%J Electric Power Systems Research
%D 2016
%T Fast breaker failure backup protection for HVDC grids
%A Azad, Sahar Pirooz
%A Leterme, Willem
%A Van Hertem, Dirk
%B Electric Power Systems Research
%I Elsevier
%V 138
%P 99–105
%G eng

%0 Journal Article
%J IEEE Transactions on Power Delivery
%D 2016
%T A fast local bus current-based primary relaying algorithm for HVDC grids
%A Azad, Sahar Pirooz
%A Van Hertem, Dirk
%B IEEE Transactions on Power Delivery
%I IEEE
%V 32
%P 193–202
%G eng

%0 Journal Article
%J IEEE Transactions on Power Delivery
%D 2016
%T A local backup protection algorithm for HVDC grids
%A Leterme, Willem
%A Azad, Sahar Pirooz
%A Van Hertem, Dirk
%B IEEE Transactions on Power Delivery
%I IEEE
%V 31
%P 1767–1775
%G eng

%0 Journal Article
%J IEEE Transactions on Power Delivery
%D 2016
%T A Local Backup Protection Algorithm for HVDC Grids
%A W. Leterme
%A S. P. Azad
%A D. Van Hertem
%K Backup protection
%K breaker failure
%K Circuit faults
%K current waveform
%K DC breaker operation
%K DC fault
%K Delays
%K fast backup relaying algorithm
%K fault current interruption interval
%K fault currents
%K HVDC grid
%K HVDC power transmission
%K HVDC transmission
%K Interrupters
%K local backup protection algorithm
%K power electronics
%K power system protection
%K power transmission faults
%K power transmission protection
%K power transmission reliability
%K power-electronics component
%K primary protection malfunction detection
%K protective relaying algorithm
%K relay failure subsystem
%K relaying algorithm
%K Relays
%K system reliability
%K Voltage measurement
%K voltage waveform
%B IEEE Transactions on Power Delivery
%V 31
%P 1767-1775
%8 August
%G eng

%0 Conference Paper
%B 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
%D 2015
%T A DC grid primary protection algorithm based on current measurements
%A Azad, S Pirooz
%A Leterme, Willem
%A Van Hertem, Dirk
%B 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
%I IEEE
%P 1–10
%G eng

%0 Conference Paper
%B European Conference on Power Electronics and Applications
%D 2015
%T A DC Grid Primary Protection Algorithm Based on Current Measurements
%A S. P. Azad
%A W. Leterme
%A D. Van Hertem
%B European Conference on Power Electronics and Applications
%P 1-6
%8 September
%G eng

%0 Journal Article
%J IEEE Transactions on Power Systems
%D 2015
%T Decentralized supplementary control of multiple LCC-HVDC links
%A Azad, Sahar Pirooz
%A Taylor, Joshua Adam
%A Iravani, Reza
%B IEEE Transactions on Power Systems
%I IEEE
%V 31
%P 572–580
%G eng

%0 Journal Article
%J IEEE Transactions on Power Delivery
%D 2015
%T Dynamic Stability Enhancement of a DC-Segmented AC Power System Via HVDC Operating-Point Adjustment
%A S. P. Azad
%A R. Iravani
%A J. E. Tate
%K bifurcation
%K Damping
%K damping improvement
%K DC-segmented AC power system configurations
%K eigenvalues and eigenfunctions
%K first-order sensitivity
%K Hopf bifurcation stability margin
%K HVDC link controllers
%K HVDC operating-point adjustment
%K HVDC power transmission
%K HVDC transmission
%K HVDC transmission control
%K line impedance variations
%K load impedance variations
%K optimum direction
%K oscillatory dynamic stability enhancement
%K power system control
%K power system dynamic stability
%K power system stability
%K power transmission control
%K Sensitivity
%K setpoint value adjustment
%K Stability analysis
%B IEEE Transactions on Power Delivery
%V 30
%P 657-665
%8 April
%G eng

%0 Conference Paper
%B International Conference on Power Systems Transients
%D 2015
%T Fast Breaker Failure Backup Protection for HVDC Grids
%A W. Leterme
%A S. P. Azad
%A D. Van Hertem
%B International Conference on Power Systems Transients
%P 1-6
%8 June
%G eng

%0 Journal Article
%J Proc. IPST 2015
%D 2015
%T Fast breaker failure backup protection for HVDC grids
%A Leterme, Willem
%A Pirooz Azad, Sahar
%A Van Hertem, Dirk
%B Proc. IPST 2015
%P 1–6
%G eng

%0 Conference Paper
%B CIGRE Canada Conference - Future Power Systems and Grid Resiliency
%D 2015
%T Interoperability of Protection Systems in High Voltage Direct Current (HVDC) Networks
%A A. Hejazizo
%A S. P. Azad
%A D. Van Hertem
%B CIGRE Canada Conference - Future Power Systems and Grid Resiliency
%P 1-6
%8 October
%G eng

%0 Journal Article
%J IEEE Transactions on Power Delivery
%D 2015
%T Stability Enhancement of a DC-Segmented AC Power System
%A S. P. Azad
%A R. Iravani
%A J. E. Tate
%K constant current sources
%K controlled transfer
%K coordinated supplementary control
%K Damping
%K DC-segmented AC power system
%K global supplementary control
%K GSC strategy
%K high voltage DC current
%K HVDC power convertors
%K HVDC transmission
%K Inverters
%K LCC-HVDC link
%K line-commutated current-sourced converter
%K linear quadratic Gaussian method
%K LQG control
%K LQG method
%K Modulation
%K Oscillators
%K oscillatory dynamic propagation
%K power system control
%K Power system dynamics
%K power system stability
%K segmentation
%K stability enhancement
%K three-segment AC system
%B IEEE Transactions on Power Delivery
%V 30
%P 737-745
%8 April
%G eng

%0 Journal Article
%J IEEE Transactions on Power Delivery
%D 2015
%T Stability enhancement of a DC-segmented AC power system
%A Azad, Sahar Pirooz
%A Iravani, Reza
%A Tate, Joseph Euzebe
%B IEEE Transactions on Power Delivery
%I IEEE
%V 30
%P 737–745
%G eng

%0 Conference Paper
%B CIGRE International Symposium-Innovation for Secure and Efficient Transmission Grids
%D 2014
%T Coordination of AC and DC Power System Models for Inter-Area Damping Controller Design
%A S. P. Azad
%A J. E. Tate
%A R. Iravani
%B CIGRE International Symposium-Innovation for Secure and Efficient Transmission Grids
%P 1-6
%8 March
%G eng

%0 Conference Paper
%B CIGRE Int. Symp. Innovation for Secure and Efficient Transmission Grids, Date: 2014/03/01-2014/03/01, Location: Brussels, Belgium
%D 2014
%T Coordination of AC and DC Power System Models for Inter-Area Damping Controller Design
%A Pirooz Azad, Sahar
%A Iravani, Reza
%A Tate, Joseph
%B CIGRE Int. Symp. Innovation for Secure and Efficient Transmission Grids, Date: 2014/03/01-2014/03/01, Location: Brussels, Belgium
%G eng

%0 Journal Article
%J IEEE Transactions on Power Delivery
%D 2014
%T Dynamic stability enhancement of a DC-segmented AC power system via HVDC operating-point adjustment
%A Azad, Sahar Pirooz
%A Iravani, Reza
%A Tate, Joseph Euzebe
%B IEEE Transactions on Power Delivery
%I IEEE
%V 30
%P 657–665
%G eng

%0 Thesis
%D 2014
%T Small-signal dynamic stability enhancement of a DC-segmented AC power system
%A Azad, Sahar Pirooz
%I University of Toronto
%G eng
%9 phd

%0 Journal Article
%J IEEE Transactions on Power Systems
%D 2013
%T Damping inter-area oscillations based on a model predictive control (MPC) HVDC supplementary controller
%A Azad, Sahar Pirooz
%A Iravani, Reza
%A Tate, Joseph Euzebe
%B IEEE Transactions on Power Systems
%I IEEE
%V 28
%P 3174–3183
%G eng

%0 Journal Article
%J IEEE Transactions on Power Systems
%D 2013
%T Damping Inter-Area Oscillations Based on a Model Predictive Control (MPC) HVDC Supplementary Controller
%A S. P. Azad
%A R. Iravani
%A J. E. Tate
%K Control systems
%K current control
%K Current measurement
%K Damping
%K electric current control
%K HVDC power convertors
%K HVDC supplementary controller
%K HVDC transmission
%K IEEE 14-bus system
%K inter-area oscillations
%K line-commutated HVDC link
%K linear quadratic Gaussian control
%K LQG control
%K model predictive control
%K model predictive control (MPC)
%K MPC
%K Noise
%K Noise measurement
%K Oscillators
%K plant constraints
%K power system control
%K power system stability
%K power systems
%K predictive control
%K salient feature
%K signal disturbance
%K Western System Coordinating Council
%K WSCC 9-bus system
%B IEEE Transactions on Power Systems
%V 28
%P 3174-3183
%8 August
%G eng

%0 Conference Paper
%B IEEE Power Energy Society General Meeting
%D 2013
%T Damping Low-Frequency Oscillations by Tuning the Operating Point of a DC-Segmented AC System
%A S. P. Azad
%A R. Iravani
%A J. E. Tate
%K AC transmission lines
%K Damping
%K damping low-frequency oscillation mode
%K damping ratio
%K DC-segmented AC system
%K economic dispatch
%K generation cost
%K HVDC power transmission
%K HVDC transmission
%K large AC power systems
%K line-commutated HVDC links
%K load flow control
%K optimisation
%K optimization
%K optimization problem
%K optimum set-points
%K Oscillators
%K power flow control
%K power system stability
%K power transmission control
%K power transmission lines
%K Reactive power
%K small-signal stability enhancement
%K Stability analysis
%K system operating point tuning
%K underdamped oscillatory modes
%B IEEE Power Energy Society General Meeting
%P 1-5
%8 July
%G eng

%0 Conference Paper
%B 2013 IEEE Power & Energy Society General Meeting
%D 2013
%T Damping low-frequency oscillations by tuning the operating point of a dc-segmented ac system
%A Azad, Sahar Pirooz
%A Iravani, Reza
%A Tate, Joseph Euzebe
%B 2013 IEEE Power & Energy Society General Meeting
%I IEEE
%P 1–5
%G eng

%0 Conference Paper
%B IEEE/PES Power Systems Conference and Exposition (PSCE), Date: 2011/03/01-2011/03/01, Location: Phoenix, AZ
%D 2011
%T Parameter Estimation of a Doubly Fed Induction Generator Driven by Wind Turbine
%A Pirooz Azad, Sahar
%A Tate, Joseph
%B IEEE/PES Power Systems Conference and Exposition (PSCE), Date: 2011/03/01-2011/03/01, Location: Phoenix, AZ
%G eng

%0 Conference Paper
%B 2011 IEEE/PES Power Systems Conference and Exposition
%D 2011
%T Parameter estimation of doubly fed induction generator driven by wind turbine
%A Azad, Sahar Pirooz
%A Tate, Joseph Euzebe
%B 2011 IEEE/PES Power Systems Conference and Exposition
%I IEEE
%P 1–8
%G eng

%0 Conference Paper
%B 2011 IEEE/PES Power Systems Conference and Exposition
%D 2011
%T Parameter Estimation of Doubly Fed Induction Generator Driven by Wind Turbine
%A S. P. Azad
%A J. E. Tate
%K asynchronous generators
%K computation time
%K computational complexity
%K doubly fed induction generator
%K electric power generation
%K electrical energy
%K estimation accuracy
%K European power systems
%K extended Kalman filter
%K Generators
%K Kalman filter based estimation techniques
%K Kalman filters
%K kinetic energy
%K Mathematical model
%K Noise
%K nonlinear filters
%K North American power systems
%K parameter estimation
%K power filters
%K renewable energy sources
%K renewable resources
%K Rotors
%K Stators
%K unscented Kalman filter
%K wind turbine
%K wind turbines
%B 2011 IEEE/PES Power Systems Conference and Exposition
%P 1-8
%8 March
%G eng

%0 Conference Paper
%B CIGRE Int. Symp. Electric Power Syst. Future-Integrating Supergrids and Microgrid, Date: 2011/09/01-2011/09/01, Location: Bologna, Italy
%D 2011
%T Small Signal Stability Improvement of AC Transmission Networks Using HVDC Grid
%A Pirooz Azad, Sahar
%A Iravani, Reza
%A Tate, Joseph
%B CIGRE Int. Symp. Electric Power Syst. Future-Integrating Supergrids and Microgrid, Date: 2011/09/01-2011/09/01, Location: Bologna, Italy
%G eng

%0 Conference Paper
%B CIGRE International Symposium Electric Power System Future-Integrating Supergrids and Microgrid
%D 2011
%T Small Signal Stability Improvement of AC Transmission Networks Using HVDC Grid
%A S. P. Azad
%A J. E. Tate
%A R. Iravani
%B CIGRE International Symposium Electric Power System Future-Integrating Supergrids and Microgrid
%P 1-6
%8 September
%G eng