High performance algorithms for the control and load identification of boost DC-DC converters

Kinoshita, Haruto; Liu, K.Z.; Zaharin, Ahmad Abu; Yokozawa, Y.

doi:10.1109/vppc.2010.5729159

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…1. Minimum DC-link capacitance at the steady state capacitance at the steady state according to (1). It is seen that a small capacitance is enough, because the DC-link capacitor is only required for the absorption of both the rectifier and inverter ripple currents.…”

Section: Fig 2 Experimental Results In Translational Modementioning

confidence: 99%

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2013

IEEJ Trans. IA

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This paper describes a control scheme to improve the operability of a slave robot with an underactuated joint in a bilateral system. Fig. 1 shows the master and slave robots employed in this study.The bilateral system is expected to be a key technology for the next generation of robots. It is a control technique used to achieve haptic communication by transmitting the position and the force information between master and slave robots. Indeed, in many fields of operation, a master-slave system is needed to remotely perform tasks in unknown environments.However, in past studies, bilateral systems consisted of groundbased devices with limited workspaces. In order to solve this problem, teleoperation of a two-wheel driven mobile manipulator with an underactuated joint was proposed. The two-wheel driven mobile manipulator has high mobility; it can turn on the spot and overcome a step. Therefore, it is suitable for tasks to be performed in a human environment. However, the slave robot is unstable because it lacks casters. If the slave robot tends to be unstable, bilateral control cannot be achieved with a high degree of accuracy. However, previous studies have not taken into consideration the stability of the slave robot.Therefore, in this study, the proposed method takes into consideration the stability of the two-wheel driven mobile manipulator. The proposed method can perform bilateral control in the manipulator part of the slave system and stabilization control of the virtual With the proposed method, the stability of the slave robot improves, compared with the conventional method. As a result, the proposed method can enhance operability in a bilateral system. The proposed method was validated by the experimental results. Keywords: water supply systems, operation support system, A* search algorithmThe operation of integrated water supply systems has become increasingly complicated owing to reorganization of waterworks. In response, many waterworks have introduced operation support systems. An operation support system consists of several functions such as scheduling, forecasting, and simulations. A pump operation scheduling function is one of the functions of this system, and it calculates the optimum pump flow rates of each time step, taking into consideration water demand. In this paper, we propose a new algorithm for pump operation scheduling for large-scale water supply systems.Generally, pump flow rates are applied to control variables in pump scheduling problems. It is difficult to apply to large-scale water supply systems because the solution space grows exponentially with increasing number of pumps. In the proposed model, we define solution space as a network model which the nodes are cumulative flow rates and the edges are flow rates at each time step. We treat pump scheduling as a shortest path problem, and A* search algorithm is used to find the optimum path. One of the characteristics of the proposed method is that the search area can be restricted by constraints, such as the water level of tanks.In th...

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Section: Fig 2 Experimental Results In Translational Modementioning

confidence: 99%

Extended Summaries

2013

IEEJ Trans. IA

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Identification and robust control of a quadratic DC/DC boost converter by Hammerstein model

Alonge

Rabbeni

Pucci

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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This paper deals with the theoretical framework definition and the experimental application of the Hammerstein identification and related robust control technique to a quadratic DC-DC single switch boost converter. A set of 4th order transfer functions has been identified with the Hammerstein approach, on the basis of a PRBS excitation signal. The set of identified transfer functions has been then used to design a suitable robust control technique, able to properly deals with converter's parameters uncertainty and load variation. The proposed approach has been tested in numerical simulation and validated experimentally on suitably developed test set-up. It has been further compared with a classic PI controller

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An MPC-PI approach for buck DC-DC converters and its implementation

Liu

Yokozawa

2012

2012 IEEE International Symposium on Industrial Electronics

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High performance algorithms for the control and load identification of boost DC-DC converters

Cited by 5 publications

References 6 publications

Extended Summaries

Extended Summaries

Identification and robust control of a quadratic DC/DC boost converter by Hammerstein model

An MPC-PI approach for buck DC-DC converters and its implementation

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