Peer-Reviewed Articles in Journals and Conference Proceedings
2021
| A. Krishna, and J. Schiffer "A Port-Hamiltonian Approach to Modeling and Control of an Electro-Thermal Microgrid" Accepted for the 7th IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control (LHMNC), Berlin, Germany, Oct. 11-13, 2021 |
| J. G. Rueda-Escobedo, E. Fridman, and J. Schiffer "Data-Driven Control for Linear Discrete-Time Delay Systems" Accepted for the IEEE Transactions on Automatic Control pdf | doi |
| A. 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" Accepted for the IEEE Transactions on Automatic Control pdf | 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, 2021, Art. no. 109635 pdf | doi |
2020
| 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 pdf | 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, Dec. 14-18, 2020 pdf | 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, Dec. 14-18, 2020 pdf | 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, Dec. 14-18, 2020 pdf | doi |
| J. G. Rueda-Escobedo, and J. A. Moreno "Strong Lyapunov Functions for Two Classical Problems in Adaptive Control" Automatica, 124, 2020, Art. no. 109250 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, 2020, Art. No. 106629 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, Jul. 11-17, 2020 |
| 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, Jul. 11-17, 2020 pdf | 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, Jul. 11-17, 2020 pdf | 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, 2020 pdf | 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, Jun. 29 - Jul. 3, 2020 pdf | 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, 2020 pdf | doi |
2019
| 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, 2019 pdf | doi |
| J.Schiffer, D.Efimov, and R. Ortega “Global Synchronization Analysis of Droop-Controlled Microgrids - A Multivariable Cell Structure Approach” Automatica, 109, 2019, Art. no. 108550 pdf | 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(10): pp. 4993-5001, 2019 pdf | 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, 2019, pp. 542-547 pdf | 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, 2019, pp. 2108-2114 pdf | 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, 2019, pp. 1-6 pdf | 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 pdf | doi |
2018
| J. Schiffer, D. Efimov, and R.Ortega “Almost Global Synchronization in Multi-Machine Power Systems” In 57th IEEE Conference on Decision and Control, Miami Beach, FL, USA, 2018, pp. 800-805 pdf | 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” In 57th IEEE Conference on Decision and Control, Miami Beach, FL, USA, 2018, pp. 786-793 pdf | 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 pdf | doi |
| D. Efimov and J. Schiffer “A New Criterion for Boundedness of Solutions for a Class of Periodic Systems” In European Control Conference (ECC), Limassol, Cyprus, 2018, pp. 1642-1647 pdf | 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” In European Control Conference (ECC), Limassol, Cyprus, 2018, pp. 758-763 pdf | 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” In European Control Conference (ECC), Limassol, Cyprus, 2018, pp. 2575-2580 pdf | 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 pdf | 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 pdf | 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), 2017, Art. no. 20160304. pdf | 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 pdf | 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 pdf | 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 pdf | 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” In 25th Mediterranean Conference on Control and Automation, Valletta, Malta, 2017, pp. 508-515 pdf | doi |
| Y. Ojo and J. Schiffer “Towards a Time-Domain Modeling Framework for Small-Signal Analysis of Unbalanced Microgrids” In IEEE PowerTech 2017, Manchester, UK, 2017, pp. 1-6 pdf | 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 pdf | 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 pdf | 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 pdf | 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, vol. 24, no. 1, pp. 96-109, 2016 pdf | doi |
| J. Schiffer and F. Dörfler “On Stability of a Distributed Averaging PI Frequency and Active Power Controlled Differential-Algebraic Power System Model” In European Control Conference (ECC), Aalborg, Denmark, 2016, pp. 1487-1492 pdf | doi |
| N. Barabanov, J. Schiffer, R. Ortega, and D. Efimov “Almost Global Attractivity of a Synchronous Generator Connected to an Infinite Bus” In 55th IEEE Conference on Decision and Control, Las Vegas, NV, USA, 2016, pp. 4130-4135 pdf | 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” In 55th IEEE Conference on Decision and Control, Las Vegas, NV, USA, 2016, pp. 2595-2600 pdf | 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” In 55th IEEE Conference on Decision and Control, Las Vegas, NV, USA, 2016, pp. 1564-1569 pdf | 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” In IEEE 54th Conference on Decision and Control (CDC), Osaka, Japan, 2015, pp. 6391-6396 pdf | doi |
| D. Efimov, J. Schiffer, and R. Ortega “ISS of Multistable Systems with Delays: Application to Droop-Controlled Inverter-Based Microgrids” In American Control Conference (ACC), Chicago, IL, USA, 2015, pp. 4664-4669 pdf | doi |
| J. Schiffer, R. Ortega, C. A. Hans, and J. Raisch “Droop-Controlled Inverter-Based Microgrids Are Robust to Clock Drifts” In American Control Conference (ACC), Chicago, IL, USA, 2015, pp. 2341-2346 pdf | 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 pdf | doi |
| J. Schiffer, R. Ortega, A. Astolfi, J. Raisch, and T. Sezi “Stability of Synchronized Motions of Inverter-Based Microgrids under Droop Control” In 19th IFAC World Congress, Cape Town, South Africa, 2014, pp. 6361-6367 pdf | doi |
| J. Schiffer, T. Seel, J. Raisch, and T. Sezi “A Consensus-Based Distributed Voltage Control for Reactive Power Sharing in Microgrids” In 13th European Control Conference (ECC), Strasbourg, France, 2014, pp. 1299-1305 pdf | doi |
| J. Schiffer, D. Goldin, J. Raisch, and T. Sezi “Synchronization of Droop-Controlled Microgrids with Distributed Rotational and Electronic Generation” In IEEE 52nd Annual Conference on Decision and Control (CDC), Florence, Italy, 2013, pp. 2334-2339 pdf | doi |
| J. Schiffer, A. Anta, T. D. Trung, J. Raisch, and T. Sezi “On Power Sharing and Stability in Autonomous Inverter-Based Microgrids” In IEEE 51st Annual Conference on Decision and Control (CDC), Maui, HI, USA, 2012, pp. 1105-1110 pdf | doi |
| S. Gestegaard Robertz, L. Halt, S. Kelkar, K. Nilsson, D. Schär, A. Robertsson, and J. Schiffer “Precise Robot Motions Using Dual Motor Control” In Proc. IEEE International Conference on Robotics and Automation, Anchorage, AK, USA, 2010, pp. 5613-5620 pdf | doi |
| I. Dressler, J. Schiffer, and A. Robertsson. “Modeling and Control of a Parallel Robot Using Modelica.” In Proceedings of the 7th International Modelica Conference, Como, Italy, 2009, pp. 261-269 |