This paper derives a hybrid control law for an extended nonholonomic double integrator (ENDI) that captures the dynamics of a wheeled robot subject to force and torque inputs. A simple logic-based hybrid controller is proposed which yields global stability and convergence of the closed-loop system to an arbitrarily small neighborhood of the origin. This is achieved by mapping the state-space in...

The voltage sag detection algorithm and control algorithm synthesis of the dynamic voltage restorer (DVR) are proposed. The double synchronous reference frame phase-locked loop (DSRF-PLL) is applied for the voltage sag detection, which is able to calculate the phase angle of the positive-sequence fundamental component of grid voltages even under unbalanced and distorted grid voltages. The effec...

To solve the problem of harmonic pollution to the power grid that caused by traditional diode rectifier and phase controlled rectifier, the unit power factor PWM rectifier is designed. The topology structure of the rectifier circuit is introduced and the double closed-loop control strategy in three-phase stationary coordinate system is analyzed. For the deficiency of control strategy, the contr...

Event-triggered and self-triggered control have recently been proposed as alternatives to the well established periodic implementation of control loops on digital platforms. In a self-triggered implementation, the control task is responsible for computing the new actuator values as well as the next instant of time at which the state should be sampled, the control law recomputed, and the actuato...

Mariam Motamed, Avideh Zakhor, Seth Sanders and TeWon Lee Department of Electrical Engineering and Computer Sciences University of California, Berkeley CA 94720 e-mail: [email protected], [email protected], and [email protected] ABSTRACT An important factor a ecting the performance of modulators is their tone behavior. A recent approach to alleviate the tone problem consists...

In this study, a double-loop control strategy is proposed for power grid frequency and voltage regulation using plug-in electric vehicles (PEVs) connected to the through three-level capacitor clamped inverter. The problem first formulated vector space analysis phasor diagrams find boundaries constraints in terms of system parameters. derived formulas are then utilized design controller an exclu...

During transradial intervention, sharp edge of the guide catheter tip may act like a "razor-blade" and can prevent the catheter navigation especially in situation like double hair pin loop. Here, we report primary percutaneous coronary intervention (PCI) through diagnostic catheter using an innovative technique, balloon-assisted sliding and tracking (BLAST), to overcome this double hairpin loop...

The Inspector/Executor is well-known for parallelizing loops with irregular access patterns that cannot be analyzed statically. The downsides of existing inspectors are that it is hard to amortize their high run-time overheads by actually executing the loop in parallel, that they can only be applied to loops with dependencies that do not change during their execution and that they are often spe...