Real Time Closed-loop Test Rig for Decentralized Control of Smart Distribution Networks

A Playbook for Real-Time, Closed-Loop Control

SIFT has been developing an approach to adaptable automation control of multiple Unmanned Air Vehicles (UAVs) we call a Playbook because it is based on the metaphor of a sports team’s book of acceptable plays. Playbook represents a “delegation” approach to human-automation interactions because it allows a human operator to task or delegate authority to automation with much of the same flexibili...

Time Optimal Closed - Loop Fuzzy - Control Strategy for Nonlinear Lunar Lander Mission

On the Achievable Closed Loop Performance for Decentralized Control Structures

The paper addresses the effect of interactions on the performance of decentralized control systems. Most existing tools for analyzing the effect of interactions assume perfect control up to the system bandwidth, and furthermore neglect the phase contributions from subsystem interactions. Here we show that for most systems, and in particular large scale systems, the assumption of perfect control...

Real-Time Computation of Closed-Loop Controls

The paper reports on recent progress in the real-time computation of constrained closed-loop optimal control, in particular the special case of nonlinear model predictive control, of large DAE systems arising e.g. from semi-discretization of instationary PDE. Through a combination of, among others, a direct multiple shooting approach, a constrained Gauss-Newton method and an operation point emb...

Decentralized Adaptive Control of Large-Scale Non-affine Nonlinear Time-Delay Systems Using Neural Networks

In this paper, a decentralized adaptive neural controller is proposed for a class of large-scale nonlinear systems with unknown nonlinear, non-affine subsystems and unknown nonlinear time-delay interconnections. The stability of the closed loop system is guaranteed through Lyapunov-Krasovskii stability analysis. Simulation results are provided to show the effectiveness of the proposed approache...