Multi-objective reliability-based design optimization (MORBDO) is an efficient tool for generating reliable Pareto-optimal (PO) solutions. However, such PO solutions requires many function evaluations reliability analysis, thereby increasing the computational cost. In this paper, a single-loop multi-objective formulation proposed that approximates analysis using Karush-Kuhn Tucker (KKT) optimal...

This paper presents an improved direct torque control (DTC) algorithm as compared to a traditional DTC scheme. In the traditional scheme, a pair of hysteresis comparators is used to control motor stator flux and electromagnetic torque. This causes a variable switching frequency which results in a high flux and torque ripples. To mitigate these issues, an improved DTC algorithm based on a double...

The use of feedback control techniques has been gaining importance in real-time scheduling as a means to provide predictable performance in the face of uncertain workload. In this paper, we propose and analyze a feedback scheduling algorithm, called double-loop feedback scheduler, for distributed real-time systems, whose objective is to keep the deadline miss ratio near the desired value and ac...

with increasing the presence of microgrids (mgs) in the power systems, investigating the mg stability during transient faults is necessary. this study investigates the transient stability analysis of a mg supplied by multiple inverter interfaced distributed generations (iidgs) during fault. the transient stability of a mg is highly depends on the iidgs control strategy. a mg, simulated on matla...

Aiming at the problems of output voltage fluctuation and current total harmonic distortion (THD) in front stage totem-pole bridgeless PFC two-stage V2G (Vehicle to Grid) vehicle-mounted bi-directional converter, a fuzzy linear active disturbance rejection control strategy for front-stage AC-DC power conversion system is proposed. Firstly, topological working mode analyzed, mathematical model es...

Inverted pendulum system is a complicated, unstable and multivariable nonlinear system. In order to control the angle and displacement of inverted pendulum system effectively, a novel double-loop digital PID control strategy is presented in this paper. Based on impulse transfer function, the model of the single linear inverted pendulum system is divided into two parts according to the controlle...

This thesis proposes a minimum distance diagram of undirected double-loop, which makes use of the cyclic graph's excellent properties on the node number and path length to achieve high performance. Main issues include the method to build the minimum distance diagram of undirected double-loop networks, the algorithm to calculate its diameter, and the step to build optimal undirected double-loop ...