In this paper a repetitive control (RC) approach to improve current sharing between parallel-connected boost converters in DC microgrids is presented. The impact of changes in line impedance on current sharing is investigated. A repetitive controller is designed and connected in series with current controller of the boost converters to control the switching signals such that by regulating of th...

High speed trains permit faster travelling between long distance destinations, making it an easy and comfortable way of travelling. The pantograph is the element of the train that collects electrical current from the cable system above (the catenary), to the train motors. The contact force variation can cause contact losses, electric arc formations and sparking. This deteriorates the quality of...

We describe a novel tool developed to support architectural design of distributed real-time control systems. The approach enables the co-simulation of functionality (from discrete-time control to logic) together with the controlled continuous-time processes and the behavior of the computer system. In particular, modelling and simulation of distributed computer control systems is supported allow...

This paper proposes a novel hybrid active power filter (HAPF) topology based on the cascaded connection of the AC-side capacitor and the third-order LCL-filter, which has the advantage of the conventional hybrid filter and the LCL-filter in terms of reduced dclink voltage and better switching ripple attenuation. The robust deadbeat control law is derived for the current loop, with special empha...

This paper describes the requirements for user interfaces for teleoperation of mining vehicles and systems. The current status of teleoperation in mining is outlined. Current commercial interfaces are relatively unsophisticated, evolving from line-of-sight remote control systems with the addition of video displays. The user interfaces for two experimental teleoperated systems, the Numbat emerge...

Abstract— In order to meet the demand of the signal test device of phase-sensitive, by modeling and simulating on the transient stability and load change resistance, the control stability of variable frequency power is increased with parameter configuration, increased phase margin and amplitude margin. Besides, using ARM embedded kernel control chip the dual variable frequency power is establis...