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This research is addresses to determine the dominant species that located in the overlapped clusters produced by the Kohonen Self-Organizing Map (KSOM). Before, KSOM algorithm able to cluster the tropical wood species data set effectively and accurately according to the wood features, which is wood pores sizes. Unfortunately, there are seven overlapped clusters in the clustering result and this is...
This paper focuses on extending a previously reported technique to convert a desk into a tactile interface. The original technique, based on the so-called "Haptic Desk" enables the detection of an applied force and its contact point by force sensors at the desk's supporting points. Consumer electronics and furniture can be converted into tactile interfaces with the use of this technique...
Reliability of electric drives is of paramount importance for safety critical applications in transportation, medical and military industries. While numerous fault tolerant machine and inverter topologies have been developed for improving drive reliability, comprehensive reliability evaluation of fault tolerant electric drive systems has not been reported in literature. This paper performs quantitative...
In future, distributed energy resources (RESs) will be utilized at consumption points. As a consequence, power flow and fault current would be bidirectional and topology-dependent; and hence the conventional protection strategies would be inefficient. This paper categorizes the main challenges in AC and DC microgrids, and then investigates the existing and promising solutions for the corresponding...
Kernel method has been applied to many multivariate statistical analysis techniques. In this paper, we investigated the regression properties of Kernel Partial Least Squares (KPLS) and compared it to the standard technique. Basic mathematical algorithms and application of KPLS were shown. We further established regression model based on KPLS and demonstrated the model by a numerical case.
Human hand functions range from precise-minute handling to heavy and robust movements. Developing an artificial thumb which can mimic the actions of a real thumb precisely is a major achievement. Despite many efforts dedicated to this area of research, control of artificial thumb movements in resemblance to our natural movement, still poses as a challenge. Most of the development in this area is based...
This paper presents a novel hardware accelerator architecture for the linear-time Maximally Stable Extremal Regions (MSER) detector algorithm. In contrast to the standard MSER algorithm, the linear-time MSER implementation is more suitable for real-time applications of image retrieval in large-scale and high resolution datasets (e.g. satellite images). The linear-time MSER accelerator design is optimized...
Modern VLSI and FPGA chip designs utilize automated generation of the structure and component configuration for different product variations. This is based on re-usable, parametrized library components, and tools for definition, assembly, configuration and generation of final HW and SW code. A product version includes several structural hierarchies, in which each component is independently reusable...
New emission standards are progressively moving transportation systems toward an electrification process that must provide high reliability, fault tolerance and high integration levels. Integrated Modular Motor Drives (IMMD) are an interesting candidate for these applications. Focusing on reliability and fault tolerance, this paper proposes a simple speed droop controller for IMMDs. Extending the...
Solar photovoltaic (PV) energy has grown significantly during the last years. However, despite of the increase in installed capacity penetration, this energy source still arises important concerns due to the variability of power production. The short-term effects such as cloud shadowing and supply interruptions, as well as long-term effects such as dust accumulation, seasonal variation and ageing...
Currently, an increasing number of initiatives are observed aiming at enriching automation environment with modern Information and Communication Technologies (ICT). The desired solutions should lead to increasing and facilitating interoperability of production systems and their components. To realize this vision, a key component is an open and standardized communication platform. Meanwhile, OPC Unified...
Due to variability of solar energy resources, maximum power point tracking (MPPT) of photovoltaic (PV) is required to ensure continuous operation at the maximum power point (MPP) and maximize the energy harvest. Many standards are developed to ensure the safe and efficient power generation under dynamic weather conditions. This paper presents a high efficiency fixed-step model predictive control (MPC)...
In this work, a Finite Control Set Model Predictive Control (FCS-MPC) strategy for Cascaded H-bridge (CHB) inverters is proposed. The key novelty of our proposal comes from the way the cost function is designed. Generally, in standard FCS-MPC formulations for power converters, the cost function only considers the current tracking error. In this proposal, the proposed cost function also takes into...
Building automation domain is affected by a diversity of standards and technologies. With the upcoming Internet of Things heading for a pervasive network of interconnected smart things and the need for efficient and intelligent energy management systems, the necessity of integrating these heterogeneous building automation environments soars. Thus, standardized, interoperable, secure, and scalable...
The growing dissemination of distributed energy resources with steadily changing power flows in combination with the rising demand for electricity leads to increasing problems in grid management. Planning and managing these resources with information and communication technology as well as automation technology for optimal operational planning while maintaining the system's security and stability...
In many industrial applications, servo-positioning devices are composed of an electric motor, connected to the mechanical load through elastic elements. The problem of two-mass resonant systems has been studied for long time, and the main issue targeted has been the development of accurate and robust servo positioning devices, without making use of a load-side position sensor. Indeed, by using properly...
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