Pull systems focusing on throughput time control and applicable in situations with high variety and customization are scarce. This paper compares pull systems that can cope with such situations: POLCA and CONWIP. Both systems constrain the maximum amount of work in progress (WIP) within a loop, but their effectiveness in terms of reducing total throughput time is questioned. They mainly differ ...

Using teams of autonomous, heterogeneous robots to operate in dangerous environments means increased cost-effectiveness and the ability to spread skills among team members. The high risk of loss in these domains is a challenge to team management. Teams must be able to recruit the help of other robots in the environment, while balancing searching with performing immediately useful work. This pap...

In order to enhance multicast communication, it is important to investigate effects of network coding which can be a typical application of active network. In this paper, we study the feasibility of network coding based multicast architecture from performance aspect. We first show that the network coding based multicast has not only high transmission capacity with the max-flow, which is an orig...

In this paper the parallel connection of two three-phase buck-type unity power factor rectifier systems is investigated experimentally for a 10kW DSP-controlled prototype. There, a space vector modulation scheme is employed which shows all advantages of interleaved operation of the two systems. Three control schemes for active DC-side current balancing are described. The control schemes do diff...

This paper presents a novel way of generating the reference currents for an active filter and/or a static compensator. A compensator structure is proposed which is capable of balancing an unbalanced delta-connected load that may also draw harmonic currents. In addition to balancing the load, the supply side power factor is also made unity. The theory of instantaneous symmetrical components is u...

Future sensor networks would comprise sensing devices with energy-harvesting capabilities from renewable energy sources, such as solar power. This paper focuses on design of efficient algorithms for multi-sensor activation to optimise overall event detection probability in presence of uncertainties in event and recharge processes. We formulate the dynamic multisensor activation question in a st...

The concept of dynamic balancing with respect to a given trajectory is proposed in this paper. Trajectory‐ based dynamic balancing is a technique that brings additional mechanisms to unbalanced mechanisms with the purpose of actuating the original mechanism to move along a predefined trajectory, regardless of the shaking forces and moments. In this work, a planar three degrees of...

This paper focuses on the flying inverted pendulum problem, i.e balancing a pendulum on a flying vehicle. After analyzing the system dynamic, a three loop cascade control strategy based on active disturbance rejection control (ADRC) is proposed. Not only the pendulum balancing, but also the trajectory tracking of the vehicle can be realized successfully even when strong disturbances exist. The ...

This paper presents a modulator with an active voltage balancing control for the three-phase fourlevel FLC converter based electric motor drive for applications supplied directly from a 6 kV ac-grid. It describes a modulation algorithm of the FLC converter by using the phase shifted PWM modulation with balancing voltage of the flying capacitor by using P controllers in the closed loop. The prop...