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Industrial process automation is undergoing an increased use of information communication technologies due to high flexibility interoperability and easy administration. But it also induces new security risks to existing and future systems. Intrusion detection is a key technology for security protection. However, traditional intrusion detection systems for the IT domain are not entirely suitable for...
This research focused on the control of vehicle suspension by means of magnetic resistant force coming from the generating process. As the suspension system vibrates the kinetic energy is transformed into the electrical energy through a designed transmission mechanism which converts the translational motion into the rotational motion combined with the claw pole generator. Both resistant force and...
The fundamental building block of cascaded static synchronous compensator used in distribution grid is H-bridge based converter module. In this paper a type of "plug and play" module was introduced to improve the device compensation performance and reliability. The module based on IGBT parallel connection was discussed about the design of electrical parameters and physical structure. In...
This paper applies the solar photovoltaic power generation to supply the power to the insulator power line detection system. The paper control the charging and discharging of the battery through the DC / DC, voltage and current regulation feedback circuit. This system has finished the anti-lightning of protection of the battery, overcharge protection, charge overcharge protection and anti-reverse...
Welding process is a highly nonlinear and strong coupling, time-varying system. In order to stabilize the arc welding current, a novel system based on fuzzy neural network control is presented in this paper. Fuzzy control has the features of absorbing the existing experience, while neural networks have self-organizing and self-learning features about information processing. The neural network was...
Online social search (OSS) brings forth a new way to harness the Internet for answers. In this paper, we study the balancing between OSS users' capabilities and responsibilities. Targeting a practical system design, we propose an analytical model that captures the heterogeneity of different referral sessions in OSS, and a distributed socio-aware referral strategy that can achieve the desired balance...
In this work, we study the energy management system (EMS) in the customer domain of the Smart Grid. We discuss the desired features and design issues, highlight the characteristics and identify the challenges. To address the challenges, we propose the innovative framework of Pervasive Service-Oriented Networks (PERSON). The core idea is to utilize a heterogeneous network as the information infrastructure,...
In accordance with the advantage of conventional hysteretic current control method, this paper advances a novel control method for active power filter (APF). In conventional hysteretic current control, the hysteretic band (HB) is fixed and actual compensating current is limited in a fixed hysteretic band. When the voltage source inverter (VSI) works in high-frequency state, as the switching frequency...
MC (matrix converter) as a novel power converter with many virtues such as sinusoidal control input current and output voltage waveforms, bi-direction power flowing ability, as well as good characteristic of low-frequency performance, it has become a ideal power converter to excitate brushless doubly-fed wind generator. The frequency and amplitude of the output voltage and the grid-connected power...
This paper deals with the problem of state observer-based Hinfin state feedback design for linear stochastic discrete-time systems with missing measurements based on a method of linear matrix inequality (LMI). Criteria for the existence and design method of the state observers and state feedback controllers are derived. The numerical example shows the feasibility of the proposed controllers design...
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