Publications

Journal Articles 

Voltage stabilization in microgrids via quadratic droop control, John W Simpson-Porco, Florian Dörfler, Francesco Bullo. IEEE Transactions on Automatic Control 62 (3), pp. 1239-1253 (2017/3)

System-Theoretic Performance Metrics for Low-Inertia Stability of Power Networks, Mohammad Pirani, John W Simpson-Porco, Baris Fidan. arXiv preprint arXiv:1703.02646 (2017/3/8)

Online distributed voltage stress minimization by optimal feedback reactive power control, Marco Todescato, John W Simpson-Porco, Florian Dörfler, Ruggero Carli, Francesco Bullo. IEEE Transactions on Control of Network Systems (2017/7/3)

Lossy dc power flow, John W Simpson-Porco. IEEE Transactions on Power Systems (2017/9/4)

High-voltage solution in radial power networks: Existence, properties, and equivalent algorithms, Krishnamurthy Dvijotham, Enrique Mallada, John W Simpson-Porco. IEEE control systems letters 1 (2), pp. 322-327 (2017/10)

Todescato, M., Simpson-Porco, J. W., Dörfler, F., Carli, R., & Bullo, F. (2016). Voltage stress minimization by optimal reactive power control. arXiv preprint arXiv:1602.01969. 

Pirani, M., Hashemi, E., Fidan, B., & Simpson-Porco, J. W. (2016). H∞ Robustness in Mechanical and Power Networks.

Simpson-Porco, J. (2016). Input/Output Analysis of Primal-Dual Gradient Algorithms. Retrieved from: Link.

Dörfler, F., Simpson-Porco, J. W., & Bullo, F. (2016). Breaking the hierarchy: Distributed control and economic optimality in microgrids. IEEE Transactions on Control of Network Systems, 3(3), 241-253.

Simpson-Porco, J. W., Dörfler, F., & Bullo, F. (2016). Voltage collapse in complex power grids. Nature communications, 7. 

Todescato, M., Simpson-Porco, J. W., Dörfler, F., Carli, R., & Bullo, F. (2015, December). Optimal voltage support and stress minimization in power networks. IEEE Decision and Control (CDC), 2015 IEEE 54th Annual Conference, 6921-6926.

Simpson-Porco, J. W., Shafiee, Q., Dörfler, F., Vasquez, J. C., Guerrero, J. M., & Bullo, F. (2015). Secondary frequency and voltage control of islanded microgrids via distributed averaging. IEEE Transactions on Industrial Electronics, 62(11), 7025-7038.

Simpson-Porco, J. W., Dörfler, F., & Bullo, F. (2015). On resistive networks of constant-power devices. IEEE Transactions on Circuits and Systems II: Express Briefs, 62(8), 811-815.

Simpson-Porco, J. W., Dörfler, F., & Bullo, F. (2015). A solvability condition for reactive power flow. IEEE Decision and Control (CDC), 2015 IEEE 54th Annual Conference, 2013-2017.

[1] M. Pirani, E. Hashemi, J. W. Simpson-Porco, B. Fidan, and A. Khajepour. A Graph Theoretic Approach to the Robustness of k-Nearest Neighbor Vehicle Platoons. IEEE Transactions on Intelligent Transportation Systems: Jul. 2016, Submitted.

[2] M. Todescato, J. W. Simpson-Porco, F. Dörfler, R. Carli, and F. Bullo. Voltage Stress Minimization by Optimal Reactive Power Control. IEEE Transactions on Control of Network Systems: Feb. 2016, Submitted.

[3] J. W. Simpson-Porco and F. Bullo. Distributed Monitoring of Voltage Collapse Sensitivity Indices. IEEE Transactions on Smart Grid, 7:1979–1988, 4 Jul. 2016. doi: 10 . 1109 / TSG . 2016.2533319.

[4] J. W. Simpson-Porco, F. Dörfler, and F. Bullo. On Resistive Networks of Constant Power Devices. IEEE Transactions on Circuits and Systems II: Express Briefs, 62(8):811–815, 2015. doi: 10.1109/TCSII.2015.2433537.

[5] ——, Voltage Collapse in Complex Power Grids. Nature Communications, 7(10790): 2016. doi: 10.1038/ncomms10790.

[6] F. Dörfler, J. W. Simpson-Porco, and F. Bullo. Breaking the Hierarchy: Distributed Control & Economic Optimality in Microgrids. IEEE Transactions on Control of Network Systems: 2016, To appear. doi: 10.1109/TCNS.2015.2459391.

[7] J. W. Simpson-Porco, F. Dörfler, and F. Bullo. Voltage Stabilization in Microgrids viaQuadratic Droop Control. IEEE Transactions on Automatic Control: Jul. 2015, Accepted. 

[8] J. W. Simpson-Porco, Q. Shafiee, F. Dörfler, J. M. Vasquez, J. M. Guerrero, and F. Bullo. Secondary Frequency and Voltage Control of Islanded Microgrids via Distributed Averaging. IEEE Transactions on Industrial Electronics, 62(11):7025–7038, 2015. doi: 10.1109/ TIE.2015.2436879.

[9] J. W. Simpson-Porco and F. Bullo. Contraction Theory on Riemannian Manifolds. Systems & Control Letters, 65:74–80, 2014. doi: 10.1016/j.sysconle.2013.12.016.

[10] J. W. Simpson-Porco, F. Dörfler, and F. Bullo. Synchronization and Power Sharing for Droop-Controlled Inverters in Islanded Microgrids. Automatica, 49(9):2603–2611, 2013. doi: 10.1016/j.automatica.2013.05.018.

Refereed Conference Proceedings

[1] C. D. Persis, N. Monshizadeh, and J. W. Simpson-Porco.The Cost of Dishonesty on Optimal Distributed Frequency Control of Power Networks, In IEEE Conf. on Decision and Control, Las Vegas, NV, USA, Dec. 2016, Submitted.

[2] J. W. Simpson-Porco, B. K. Poola, N. Monshizadeh, and F. Dörfler. Quadratic Performance of Primal-Dual Methods with Application to Secondary Frequency Control of Power Systems, In IEEE Conf. on Decision and Control, Las Vegas, NV, USA, Dec. 2016, Submitted.

[3] J. W. Simpson-Porco and N. Monshizadeh. Model-Free Wide-Area Monitoring of Power Grids via Cutset Voltages, In IEEE Conf. on Decision and Control, Las Vegas, NV, USA, Dec. 2016, Submitted.

[4] E. Tegling, M. Andreasson, J. W. Simpson-Porco, and H. Sandberg. Improving performance of droop-controlled microgrids through distributed PI-control, In American Control Conference, Boston, MA, USA, Jul. 2016, To Appear.

[5] M. Todescato, J. W. Simpson-Porco, F. Dörfler, R. Carli, and F. Bullo. Optimal Voltage Support and Stress Minimization in Power Networks, In IEEE Conf. on Decision and Control, Osaka, Japan, Dec. 2015, 6921–6926. doi: 10.1109/CDC.2015.7403310.

[6] J. W. Simpson-Porco, F. Dorfler, and F. Bullo. A Solvability Condition for Reactive Power Flow, In IEEE Conf. on Decision and Control, Osaka, Japan, Dec. 2015, 2013–2017. doi: 10.1109/CDC.2015.7402502.

[7] B. Gentile, J. W. Simpson-Porco, F. Dörfler, S. Zampieri, and F. Bullo. On reactive power flow and voltage stability in microgrids, In American Control Conference, Portland, OR, USA, Jun. 2014, 759–764. doi: 10.1109/ACC.2014.6859434.

[8] F. Dörfler, J. W. Simpson-Porco, and F. Bullo. Plug-and-play control and optimization in microgrids, In IEEE Conf. on Decision and Control, Los Angeles, CA, USA, Dec. 2014, 211– 216. doi: 10.1109/CDC.2014.7039383.

[9] H. Bouattour, J. W. Simpson-Porco, F. Dörfler, and F. Bullo. Further results on distributed secondary control in microgrids, In IEEE Conf. on Decision and Control, Florence, Italy, Dec. 2013, 1514–1519. doi: 10.1109/CDC.2013.6760097.

[10] J. W. Simpson-Porco, F. Dörfler, and F. Bullo. Voltage stabilization in microgrids via quadratic droop control, In IEEE Conf. on Decision and Control, Florence, Italy, Dec. 2013, 7582–7589. doi: 10.1109/CDC.2013.6761093.

[11] J. W. Simpson-Porco, F. Dörfler, Q. Shafiee, J. M. Guerrero, and F. Bullo. Stability, power sharing, & distributed secondary control in droop-controlled microgrids, In IEEE Int. Conf. on Smart Grid Communications, Vancouver, BC, Canada, Oct. 2013, 672–677. doi: 10.1109/ SmartGridComm.2013.6688036. 

[12] J. W. Simpson-Porco, F. Dörfler, and F. Bullo. Droop-controlled inverters are Kuramoto oscillators, In IFAC Workshop on Distributed Estimation and Control in Networked Systems, Santa Barbara, CA, USA, Sep. 2012, 264–269. doi: 10.3182/20120914-2-US-4030.00055.

CV 2019 - J. W. Simpson-Porco