Peer-Reviewed Articles in Journals and Conference Proceedings

2022
J. Mendoza-Avila, D. Efimov, A. Mercado-Uribe, J. Schiffer
"On Relaxed Conditions of Integral ISS for Multistable Periodic Systems"
Accepted for the IEEE 61st Conference on Decision and Control (CDC), Cancún, Mexico, 2022
J. G. Rueda-Escobedo, J. A. Moreno, J. Schiffer,
"Design and Tuning of the Super-Twisting-Based Synchronous Reference Frame Phase-Locked-Loop”
Accepted for the IEEE 61st Conference on Decision and Control (CDC), Cancún, Mexico, 2022
A. Krishna, I. Jaramillo-Cajica, S. Auer and J. Schiffer
"A power-hardware-in-the-loop testbed for intelligent operation and control of low-inertia power systems"
Automatisierungstechnik, 70, no. 12, pp. 1084-1095, 2022
doi
J. G. Rueda-Escobedo, M. Sbarciog, J. A. Moreno, J. Van Impe, A. V. Wouwer
"Robust State and Input Estimation with Enhanced Convergence Rate for Monitoring Anaerobic Digestion"
Journal of Process Control, 117, pp. 169 – 180, 2022
doi
H. Bai, H. Zhang, H. Cai, J.Schiffer
"Voltage Regulation and Current Sharing for Multi-Bus DC Microgrids: A Compromised Design Approach"
Automatica, 142, Art. no. 110340, 2022
doi
I. Jaramillo Cajica and J. Schiffer 
"A Dwell-Time Approach for Grid-Aware Operation of a Distributed Generator in an Islanded DC Microgrid"
European Control Conference (ECC), pp. 1079-1084, London, UK, 2022
doi
J. G. Rueda-Escobedo, J. A. Moreno, J. Schiffer,
L2-Gain Tuning for the Gradient Descent Algorithm in the Presence of Disturbances”
European Control Conference (ECC), pp.1610-1616, London, UK, 2022
doi
2021
A. Krishna, and J. Schiffer
"A Port-Hamiltonian Approach to Modeling and Control of an Electro-Thermal Microgrid"
7th IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control (LHMNC), Berlin, Germany, 54 (19), pp. 287-293, 2021
doi
 A. Bobtsov, R. Ortega, N. Nikolaev, N. Lorenz-Meyer, and J. Schiffer
"State Observation of Power Systems Equipped with Phasor Measurement Units: The Case of Fourth Order Flux-Decay Model"
IEEE Transactions on Automatic Control, 67 (4), pp. 2123-2130, 2021
doi
R. Ortega, A. A. Bobtsov, N. Nikolaev, J. Schiffer, and D. Dochian
"Generalized Parameter Estimation-based Observers: Application to Power Systems and Chemical-Biological Reactors"
Automatica, 129, Art. no. 109635, 2021
doi
J. G. Rueda-Escobedo, E. Fridman, and J. Schiffer
"Data-Driven Control for Linear Discrete-Time Delay Systems"
IEEE Transactions on Automatic Control, 67, pp. 3321-3336, 2021
doi
J. G. Rueda-Escobedo, and J. A. Moreno
"Strong Lyapunov Functions for Two Classical Problems in Adaptive Control"
Automatica, 124, Art. no. 109250, 2021
doi
2020
N. Lorenz‐Meyer,  R. Menzel, K. Dadzis, A. Nikiforova, H. Riemann
"Lumped Parameter Model for Silicon Crystal Growth from Granulate Crucible"
Crystal Research and Technology, 55 (8), Art. No. 2000044, 2020
doi
N. Lorenz-Meyer, A. A. Bobtsov, R. Ortega, N. Nikolaev, and J. Schiffer
"PMU-Based Decentralized Mixed Algebraic and Dynamic State Observation in Multi-Machine Power Systems"
IET Generation, Transmission & Distribution, 14 (25), pp. 6267-6275, 2020
doi
M. Rojas, J. G. Rueda-Escobedo, G. Espinosa-Perez, and J. Schiffer
“Observer-Based Excitation Control for Transient Stabilization of the Single Machine Infinite Bus System”
59th IEEE Conference on Decision and Control (CDC), Jeju Island, Republic of Korea, pp. 3377-3382, 2020
doi
J. G. Rueda-Escobedo, and J. Schiffer
"Data-Driven Internal Model Control of Second-Order Discrete Volterra Systems"
59th IEEE Conference on Decision and Control (CDC), Jeju Island, Republic of Korea, pp. 4572-4579, 2020
doi
J. E. Machado, and J. Schiffer
“A Passivity-Inspired Design of Power-Voltage Droop for DC Microgrids with Electrical Network Dynamics”
59th IEEE Conference on Decision and Control (CDC), Jeju Island, Republic of Korea, pp. 3060-3065, 2020
doi
S. Alghamdi, U. Markovic, O. Stanojev, J. Schiffer, G. Hug, and P. Aristidou
"Wide-Area Oscillation Damping in Low-Inertia Grids under Time-Varying Communication Delays"
Electric Power Systems Research, 189, Art. No. 106629, 2020
doi
J. G. Rueda-Escobedo, S. Tang, and J. Schiffer
"A Performance Comparison of PLL Algorithms in Low-Inertia Power Systems Using an Observer-Based Framework"
21st IFAC World Congress, Berlin, Germany, 53 (2), pp. 12244-12250, 2020
doi
R. Metzkow, J. G. Rueda-Escobedo, D. Doering, and J. Schiffer
"An Internal Model Approach to Robust Current Control of IPMSM Drives with Respect to Unknown and Varying Inductances"
21st IFAC World Congress, Berlin, Germany, 53 (2), pp. 14185-14191 , 2020
doi
A. Bobtsov, R. Ortega, N. Nikolaev, and J. Schiffer
"A Globally Convergent State Observer for Multimachine Power Systems with Lossy Lines"
21st IFAC World Congress, Berlin, Germany, 53 (2) pp. 5028-5033, 2020
doi
S. Alghamdi, J. Schiffer, and E. Fridman
"Synthesizing Sparse and Delay-Robust Distributed Secondary Frequency Controllers for Microgrids"
IEEE Transactions on Control Systems Technology, 29 (2), pp. 691-703, 2020
doi
S. Alghamdi, U. Markovic, O. Stanojev, J. Schiffer, G. Hug, and P. Aristidou
"Wide-Area Oscillation Damping in Low-Inertia Grids under Time-Varying Communication Delays"
21st Power Systems Computation Conference (PSCC), Porto, Portugal, 189, Art. no. 106629, 2020
doi
J. G. Rueda-Escobedo, R. Ushirobira, D. Efimov, and J. A. Moreno
"Gramian-Based Uniform Convergent Observer for Stable LTV Systems with Delayed Measurements"
International Journal of Control, 93 (2), pp. 226-237, 2020
doi
A. S. Matveev, J. E. Machado, R. Ortega, J. Schiffer, and A. Pyrkin
"A Tool for Analysis of Existence of Equilibria and Voltage Stability in Power Systems with Constant Power Loads"
IEEE Transactions on Automatic Control, 65, Art. no. 11, pp. 4726-4740, 2020
doi
A. Krishna, J. Schiffer, and J. Raisch
“Distributed Secondary Frequency Control in Microgrids: Robustness and Steady-State Performance in the Presence of Clock Drifts”
European Journal of Control, 51, pp. 135-145, 2020
doi
2019
J.Schiffer, D.Efimov, and R. Ortega
“Global Synchronization Analysis of Droop-Controlled Microgrids - A Multivariable Cell Structure Approach”
Automatica, 109, Art. no. 108550, 2019
doi
J. Schiffer, P. Aristidou, and R. Ortega
“Online Estimation of Power System Inertia Using Dynamic Regressor Extension and Mixing”
IEEE Transactions on Power Systems, 34 (6), pp. 4993-5001, 2019
doi
A. Krishna, J. Schiffer, N. Monshizadeh, and J. Raisch
“A Consensus-Based Voltage Control for Reactive Power Sharing and PCC Voltage Regulation in Microgrids with Parallel-Connected Inverters”
In European Control Conference (ECC), Naples, Italy, pp. 542-547, 2019
doi
J. G. Rueda-Escobedo, J. A. Moreno, and J. Schiffer
“Finite-Time Estimation of Time-Varying Frequency Signals in Low-Inertia Power Systems”
In European Control Conference (ECC), Naples, Italy, pp. 2108-2114, 2019
doi
S. Alghamdi, N. Smith, J. Schiffer, and P. Aristidou
“Delay-Robust Distributed Secondary Frequency Control: A Case Study”
In IEEE PES PowerTech Conference, Milano, Italy, pp. 1-6, 2019
doi
D. Efimov and J. Schiffer
“On Boundedness of Solutions of State Periodic Systems: A Multivariable Cell Structure Approach”
IEEE Transactions on Automatic Control, 64 (10), pp. 4094-4104, 2019
doi
2018
J. Schiffer, D. Efimov, and R.Ortega
“Almost Global Synchronization in Multi-Machine Power Systems”
57th IEEE Conference on Decision and Control, Miami Beach, FL, USA, pp. 800-805, 2018
doi
S. Alghamdi, J. Schiffer, and E. Fridman
“Conditions for Delay-Robust Consensus-Based Frequency Control in Power Systems with Second-Order Turbine-Governor Dynamics”
57th IEEE Conference on Decision and Control, Miami Beach, FL, USA, pp. 786-793, 2018
doi
D. Zonetti, R. Ortega, and J. Schiffer
“A Tool for Stability and Power Sharing Analysis of a Generalized Class of Droop Controllers for High-Voltage Direct-Current Transmission Systems”
IEEE Transactions on Control of Network Systems, 5 (3), pp. 1110-1119, 2018
doi
D. Efimov and J. Schiffer
“A New Criterion for Boundedness of Solutions for a Class of Periodic Systems”
European Control Conference (ECC), Limassol, Cyprus, pp. 1642-1647, 2018
doi
S. Alghamdi, J. Schiffer, and E. Fridman
“Distributed Secondary Frequency Control Design for Microgrids: Trading off L2-Gain Performance and Communication Efforts under Time-Varying Delays”
European Control Conference (ECC), Limassol, Cyprus, pp. 758-763, 2018
doi
A. Krishna, J. Schiffer, and J. Raisch
“A Consensus-Based Control Law for Accurate Frequency Restoration and Power Sharing in Microgrids in the Presence of Clock Drifts”
European Control Conference (ECC), Limassol, Cyprus, pp. 2575-2580, 2018
doi
2017
D. Efimov, J. Schiffer, N. Barabanov, and R. Ortega
“A Relaxed Characterization of ISS for Periodic Systems with Multiple Invariant Sets”
European Journal of Control, 37, pp. 1-7, 2017
doi
N. Barabanov, J. Schiffer, R. Ortega, and D. Efimov
“Conditions for Almost Global Attractivity of a Synchronous Generator Connected to an Infinite Bus”
IEEE Transactions on Automatic Control,62 (10), pp. 4905-4916, 2017
doi
J. Schiffer, D. Efimov, N. Barabanov, and R. Ortega,
“An Input-to-State Stability Approach to Verify Almost Global Stability of a Synchronous-Machine-Infinite-Bus System”
Philosophical Transactions A, Theme Issue on Energy Management: Flexibility, Risk and Optimisation, 375 (2100), Art. no. 20160304, 2017
doi
J. Schiffer, F. Dörfler, and E. Fridman
“Robustness of Distributed Averaging Control in Power Systems: Time Delays & Dynamic Communication Topology“
Automatica, 80, pp. 261-271, 2017
doi
J. Schiffer, C.A. Hans, T. Kral, J. Raisch, and R. Ortega
“Modelling, Analysis and Experimental Validation of Clock Drift Effects in Low-Inertia Power Systems”
IEEE Transactions on Industrial Electronics, Special Section on Power-Electronics-Enabled Autonomous Power Systems, 64 (7), pp. 5942-5951, 2017
doi
D. Efimov, J. Schiffer, N. Barabanov, and R. Ortega
“Relaxing the Conditions of ISS for Multistable Periodic Systems”
IFAC-PapersOnLine, 50 (1), pp. 7217-7222, 2017
doi
A. Krishna, C. A. Hans, J. Schiffer, J. Raisch, and T. Kral
“Steady State Evaluation of Distributed Secondary Frequency Control Strategies for Microgrids in the Presence of Clock Drifts”
25th Mediterranean Conference on Control and Automation, Valletta, Malta, pp. 508-515, 2017
doi
Y. Ojo and J. Schiffer
“Towards a Time-Domain Modeling Framework for Small-Signal Analysis of Unbalanced Microgrids”
IEEE PowerTech 2017, Manchester, UK, pp. 1-6, 2017
doi
2016
J. Schiffer, E. Fridman, R. Ortega, and J. Raisch
“Stability of a Class of Delayed Port-Hamiltonian Systems with Application to Microgrids with Distributed Rotational and Electronic Generation”
Automatica, 74 (12), pp. 71-79, 2016
doi
J. Schiffer, D. Zonetti, R. Ortega, A. Stankovic, T. Sezi, and J. Raisch
“A Survey on Modeling of Microgrids - From Fundamental Physics to Phasors and Voltage Sources”
Automatica, 74 (12), pp. 135-150, 2016
doi
D. Efimov, J. Schiffer, and R. Ortega
“Robustness of Delayed Multistable Systems with Application to Droop-Controlled Inverter-Based Microgrids”
International Journal of Control, 89 (5), pp. 909-918, 2016
doi
J. Schiffer, T. Seel, J. Raisch, and T. Sezi
“Voltage Stability and Reactive Power Sharing in Inverter-Based Microgrids with Consensus-Based Distributed Voltage Control”
IEEE Transactions on Control Systems Technology, 24, Art. no. 1, pp. 96-109, 2016
doi
J. Schiffer and F. Dörfler
“On Stability of a Distributed Averaging PI Frequency and Active Power Controlled Differential-Algebraic Power System Model”
European Control Conference (ECC), Aalborg, Denmark, pp. 1487-1492, 2016
doi
N. Barabanov, J. Schiffer, R. Ortega, and D. Efimov
“Almost Global Attractivity of a Synchronous Generator Connected to an Infinite Bus”
55th IEEE Conference on Decision and Control, Las Vegas, NV, USA, pp. 4130-4135, 2016
doi
C. De Persis, N. Monshizadeh, J. Schiffer, and F. Dörfler
“A Lyapunov Approach to Control of Microgrids with a Network-Preserved Differential-Algebraic Model”
55th IEEE Conference on Decision and Control, Las Vegas, NV, USA, pp. 2595-2600, 2016
doi
D. Zonetti, R. Ortega, and J. Schiffer
“A Tool for Power Flow Analysis of a Generalized Class of Droop Controllers for High-Voltage Direct-Current Transmission Systems”
55th IEEE Conference on Decision and Control, Las Vegas, NV, USA, pp. 1564-1569, 2016
doi
Prior to 2016
J. Schiffer, E. Fridman, and R. Ortega
“Stability of a Class of Delayed Port-Hamiltonian Systems with Application to Droop-Controlled Microgrids”
IEEE 54th Conference on Decision and Control (CDC), Osaka, Japan, pp. 6391-6396, 2016
doi
D. Efimov, J. Schiffer, and R. Ortega
“ISS of Multistable Systems with Delays: Application to Droop-Controlled Inverter-Based Microgrids”
American Control Conference (ACC), Chicago, IL, USA, pp. 4664-4669, 2015
doi
J. Schiffer, R. Ortega, C. A. Hans, and J. Raisch
“Droop-Controlled Inverter-Based Microgrids Are Robust to Clock Drifts”
American Control Conference (ACC), Chicago, IL, USA, pp. 2341-2346, 2015
doi
J. Schiffer, R. Ortega, A. Astolfi, J. Raisch, and T. Sezi
“Conditions for Stability of Droop-Controlled Inverter-Based Microgrids”
Automatica, 50 (10), pp. 2457-2469, 2014
doi
J. Schiffer, R. Ortega, A. Astolfi, J. Raisch, and T. Sezi
“Stability of Synchronized Motions of Inverter-Based Microgrids under Droop Control”
19th IFAC World Congress, Cape Town, South Africa, pp. 6361-6367, 2014
doi
J. Schiffer, T. Seel, J. Raisch, and T. Sezi
“A Consensus-Based Distributed Voltage Control for Reactive Power Sharing in Microgrids”
13th European Control Conference (ECC), Strasbourg, France, pp. 1299-1305, 2014
doi
J. Schiffer, D. Goldin, J. Raisch, and T. Sezi
“Synchronization of Droop-Controlled Microgrids with Distributed Rotational and Electronic Generation”
IEEE 52nd Annual Conference on Decision and Control (CDC), Florence, Italy, pp. 2334-2339, 2013
doi
J. Schiffer, A. Anta, T. D. Trung, J. Raisch, and T. Sezi
“On Power Sharing and Stability in Autonomous Inverter-Based Microgrids”
IEEE 51st Annual Conference on Decision and Control (CDC), Maui, HI, USA, pp. 1105-1110, 2012
doi
S. Gestegaard Robertz, L. Halt, S. Kelkar, K. Nilsson, D. Schär, A. Robertsson, and J. Schiffer
“Precise Robot Motions Using Dual Motor Control”
IEEE International Conference on Robotics and Automation, Anchorage, AK, USA, pp. 5613-5620, 2010
doi
I. Dressler, J. Schiffer, and A. Robertsson.
“Modeling and Control of a Parallel Robot Using Modelica”
7th International Modelica Conference, Como, Italy, pp. 261-269, 2009
doi