Richard Y. Zhang
I am a PhD student in Electrical Engineering and Computer Science, advised by Prof. Jacob K. White. I am a member of the Computational Prototyping Group (CPG), the Laboratory for Electromagnetic and Electronics Systems (LEES), and the Research Laboratory of Electronics (RLE).
- Electric Power Systems. Transient & Small-signal stability. Application of semidefinite programming and data-driven techniques.
- Power Electronics. EM field and scattering computations for passive component design. Circuit synthesis via numerical optimization.
- Applied Mathematics. Numerical methods for simulation and optimization. Low-rank methods. Convex optimization. Graph theory. Integral equation methods.
- R.Y. Zhang, J. Elizondo, J.L. Kirtley, J.K. White, Small-Signal Stability Verification Issues for Transmission Systems with Distributed Renewables. To be presented at PESGM 2016, July 17-21, Boston, MA. [pdf]
- R.Y. Zhang, J. Elizondo, J.L. Kirtley, J.K. White, Certifying Microgrid Stability Under Large-Signal Intermittency. To be presented at COMPEL 2016, June 27-30, Trondheim, Norway.
- J. Elizondo, R.Y. Zhang, P.-H. Huang, J.K. White, J.L. Kirtley, Inertial and Frequency Response from Microgrids with Induction Motors. To be presented at COMPEL 2016, June 27-30, Trondheim, Norway.
- R.Y. Zhang, J.K. White, Parameter Insensitivity in ADMM-Preconditioned Solution of Saddle-Point Problems. Submitted, Feb 5. [arXiv]
- R.Y. Zhang, J.K. White, On the Convergence of GMRES-Accelerated ADMM in O(κ1/4 log ε-1) Iterations for Quadratic Objectives. Submitted, Jan 22. [arXiv]
- R.Y. Zhang, J.K. White, Toeplitz-Plus-Hankel Matrix Recovery for Green’s Function Computations on General Substrates. Proceedings of the IEEE, vol.103, no.11, pp.1970-1984, Nov. 2015. [pdf]
- R.Y. Zhang, A.-T. Avestruz, J.K. White, S.B. Leeb, Design of Resonance Damping via Control Synthesis. Paper presented at COMPEL 2015, Jul 12-15, Vancouver, BC. [pdf]
- J. Elizondo, R.Y. Zhang, J.K. White, J.L. Kirtley, Robust Small Signal Stability for Microgrids under Uncertainty. Paper presented at PEDG 2015, Jun 22-25, Aachen, Germany. [pdf]
- Y. He, R.Y. Zhang, J.G. Kassakian, An energy-based method for the assessment of battery and ultracapacitor in pulse load applications. Paper presented at APEC 2015, Mar 15-19, Charlotte, NC. (Outstanding Presentation Award) [pdf]
- R.Y. Zhang, J.K. White, J.G. Kassakian, Fast simulation of complicated 3D structures above lossy magnetic media. IEEE Transactions on Magnetics, 50 (10), 7027416, Oct. 2014. [pdf]
- C.R. Sullivan, R.Y. Zhang, Analytical model for effects of twisting on litz-wire losses. Paper presented at COMPEL 2014, Jun 22-25, Santander, Spain. [pdf]
- R.Y. Zhang, C.R. Sullivan, J.K. White, J.G. Kassakian, Characterization of realistic litz wires using fast simulations. Paper presented at APEC 2014, Mar 16-20, Ft. Worth, TX. (Outstanding Presentation Award) [pdf] [Presentation]
- C.R. Sullivan, R.Y. Zhang, Simplified design method for litz wire. Paper presented at APEC 2014, Mar 16-20, Ft. Worth, TX. [pdf]
- R.Y. Zhang, A Generalized Approach to Planar Induction Heating Magnetics. S.M. thesis, MIT Department of Electrical Engineering & Computer Science, 2012. [pdf]
- J.G. Kassakian, R. Schmalensee et al., The Future of the Electric Grid -- An Interdisciplinary MIT study. Technical report, MIT Energy Initiative, 2011.
Please email me if you find a bug in my code. All of the software below are released under the BSD 2-Clause License. Feel free to use the code however you like, but remember that there are no warranties, expressed or implied.
- fastlitz - Realistic litz wire characterization. Simulates litz wires in three-dimensions using the PEEC formulation. Computes the resistance of a wire, and the induced eddy loss when exposed to a magnetic field. Comes with a nice graphical user interface. [Associated paper] UPDATE 04/14: Removed dependencies on MATLAB Statistics Toolbox.
- pMag - Planar Magnetics Simulator. MATLAB software that implements several fast simulation techniques for planar magnetic devices. [User's Manual] [Associated paper].
- pFFT.m - MATLAB precorrected FFT. An implementation of precorrected FFT in MATLAB, with time-critical components written in C/C++ and precompiled for 64-bit Windows and Mac. Precorrected FFT accelerates surface / boundary integral equations, volume integral equations, molecular dynamics / n-body problems, to order near-linear complexity.
- 18.336J/6.335J: Fast Methods for Partial Differential and Integral Equations. MIT, Spring 2013
- 6.002x: Circuits and Electronics (MITx / EdX). MIT, Spring 2012
- ENEL 436: Power Electronics 2. University of Canterbury, 2010.
- ENCI 303: Elements of Simulation and Inference for Engineering Decision Making. University of Canterbury, 2008.
- MIT Energy Club, Co-President, 2012-2013
- MIT Energy Conference
- Content Co-Director, 2012
- Grid 101 Workshop Lead, 2010-2011
- MIT Graduate Student Council, Executive Committee, 2011-2012
- 2011 Graduate Orientation Program, Committee Co-Chair
- Legislative Action Sub-committee (LASC)
- ISO New England, Research Intern - Business Architecture & Technology, 2014.
- ABB, Power Electronics Engineer, 2009-2010.
- Beca Carter Hollings & Ferner, Power Systems Engineering Intern, 2008-2009.
- MWH Global, Electrical Engineering Intern, 2007-2008.
- Ph.D. (EECS), Massachusetts Institute of Technology, Cambridge, MA, USA, 2016 (expected).
- S.M. (EECS), Massachusetts Institute of Technology, Cambridge, MA, USA, 2012
- B.E. (EEE) with first-class honours, University of Canterbury, Christchurch, New Zealand, 2009.