Publicaties

Speeding is an important risk factor in road safety and police activities with regard to traffic (safety) are therefore to a large extent focused on tackling this problem. Within this study, researchers from Hasselt University worked together with 3 regional police units to test the effect of two frequently used speed interventions namely a speed control (i.e. stationary police control in an unmarked police car equipped with a mobile radar) with ...

Automated section speed control is a fairly new traffic safety measure that is increasingly applied to enforce speed limits. The advantage of this enforcement system is the registration of the average speed at an entire section, which would lead to high speed limit compliances and subsequently to a reduction in the vehicle speed variability, increased headway, more homogenised traffic flow and increased traffic capacity. However, the number of ...

Magnetic random access memory (MRAM) is gaining intensive interest for embedded and stand-alone memory applications. Its inherent non-volatility is believed to address the large stand-by energy consumption issues in the present memory hierarchy. In recent years, the spin-transfer torque (STT)-MRAM has gradually matured and started to appear in the market. Typically, STT writing of perpendicular magnetic tunnel junction (pMTJ) is limited to a few ...

This paper proposes a new closed loop speed control of induction motor fed by a high performance Z-source inverter (ZSI), the speed control is based on V/F and indirect field-oriented control strategies (IFOC). The indirect field-oriented control based on PWM voltage modulation with voltage decoupling compensation is used to insert the shoot-through state within the switching signals. A dual loop controller is designed to control the peak dc ...

Speeding is an important risk factor in road safety. Generally, this risk factor plays a role in one out of three fatal crashes. Speed enforcement is one of the measures to tackle this problem. In this paper, the authors investigate the effect of a stationary police control in an unmarked police car equipped with a mobile radar with and without an advance warning sign alongside the road section. These two methods were tested on two road segments ...

Unmanned aerial vehicles are increasingly deployed in various applications such as surveillance, mapping, inspection and even parcel delivery. The capability to vertically take off and land proves to be advantageous for applications in confined regions and is particularly interesting for deployment in autonomous applications. This capability compromises the flight performance in terms of speed, range and payload capacity, limiting their ...

© 2016 Power Systems Computation Conference. A fast frequency controller (FFC) for wind power plants (WPPs), which produces a temporary overloading power reference based on frequency deviation and rate of change of frequency, is proposed in this paper. Contrary to standard controllers proposed in the literature, the gains of the FFC are optimized for different wind speeds ensuring an improved frequency control from WPPs over the whole wind speed ...