51 citations · 66 across the 6 of their papers we have counts for
8 papers
Robust AC Optimal Power Flow with Robust Convex Restriction
Dongchan Lee, Konstantin Turitsyn, Daniel K. Molzahn +1
Electric power grids regularly experience uncertain fluctuations from load demands and renewables, which poses a risk of violating operational limits designed to safeguard the syst…
Robust Model Predictive Control for Nonlinear Systems Using Convex Restriction
Dongchan Lee, Konstantin Turitsyn, Jean-Jacques Slotine
We present an algorithm for robust model predictive control with consideration of uncertainty and safety constraints. Our framework considers a nonlinear dynamical system subject t…
Sequential Convex Restriction and its Applications in Robust Optimization
Dongchan Lee, Konstantin Turitsyn, Jean-Jacques Slotine
This paper presents a convex sufficient condition for solving a system of nonlinear equations under parametric changes and proposes a sequential convex optimization method for solv…
Feasible Path Identification in Optimal Power Flow with Sequential Convex Restriction
Dongchan Lee, Konstantin Turitsyn, Daniel K. Molzahn +1
Nonconvexity induced by the nonlinear AC power flow equations challenges solution algorithms for AC optimal power flow (OPF) problems. While significant research efforts have focus…
A Robustness Measure of Transient Stability under Operational Constraints in Power Systems
Liviu Aolaritei, Dongchan Lee, Thanh Long Vu +1
The aggressive integration of distributed renewable sources is changing the dynamics of the electric power grid in an unexpected manner. As a result, maintaining conventional perfo…
Convex Restriction of Power Flow Feasibility Sets
Dongchan Lee, Hung D. Nguyen, Krishnamurthy Dvijotham +1
The convex restriction of the power flow feasible sets identifies the convex subset of power injections where the solution for power flow is guaranteed to exist and satisfy the ope…
Robustness against Disturbances in Power Systems under Frequency Constraints
Dongchan Lee, Liviu Aolaritei, Thanh Long Vu +1
The wide deployment of renewable generation and the gradual decrease in the overall system inertia make modern power grids more vulnerable to transient instabilities and unacceptab…
Dynamic Polytopic Template Approach to Robust Transient Stability Assessment
Dongchan Lee, Konstantin Turitsyn
Transient stability assessment of power systems needs to account for increased risk from uncertainties due to the integration of renewables and distributed generators. The uncertai…