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The advances in clean energy technologies have made the renewable resources more attractive for distribution network operators as they are inexhaustible and non-polluting. In this paper, a comprehensive dynamic distribution network expansion planning (DDNEP) is proposed which takes into account most of the planning alternatives along with renewable and non-renewable distributed generation (DG). The...
Developing sensors or sensor systems requires precise knowledge of their technical properties. On the one hand the three-dimensional sensitivity of a sensor is of interest. On the other hand the transmission characteristics of transceiver systems, that transfer information or energy, depending on the distance between transmitter and receiver are of particular interest. Measurements can be useful if...
The solid oxide fuel cell (SOFC) is a new energy power system. For the planar solid oxide fuel cells, the temperature distribution in a single cell is essential to the normal operation of a stack as well as the entire system. In order to estimate the temperature distribution in the cross-flow planar SOFC, this paper established a SOFC temperature field model in the matlab/simulink platform according...
Even if it is considered as an effective language for system modeling because of the descriptive aspect of its diagrams, SysML (System Modeling Language) is insufficient for verification of their behavior. This lack is accentuated by the increasing complexity of recent systems. In order to conduct behavior verifications, designers use simulation tools to realize experiments on the studied system....
In this paper, design and implementation of Neuro-Fuzzy Algorithm for Fractional Order Controller System has been carried out. Fractional order system and controller has wide application in control word. Simulation study for the fractional order transfer function using different control algorithm has been done. Fractional order system was controlled by ANFIS and Classical PID controller. Comparative...
Carrier synchronization is one of the key technologies of digital wireless communication. As a kind of four phase shift keying modulation method, QPSK has strong anti-interference ability of the suppressed carrier, which is widely used in digital wireless communications. On this basis, this article describes a Costas-loop coherent carrier extraction algorithm based on Arctangent phase detection. It...
Some technical details of DC ice-melting device and its application is introduced. And core components and structural program of DC Ice-melting device are studied from performance and price aspects. The practical functions of lines drawing, shorting scheme and the related knife gate are de scribed. The harmonic analysis and calculation of the related parameters are carried out under the establishment...
In this paper a simple technical solution for saving regenerative braking energy in tram systems is analyzed. This technical solution is energy storage system which contains only supercapacitor battery that is connected in parallel with traction substation. For the evaluation of this energy storage system a detailed simulation model in Simulink is developed and experimentally measured tram power diagrams...
The subject of the paper is focused on the analysis of a 30kW switched reluctance machine for propulsion of electrical vehicle propulsion (EV). The paper details the fundamental steps when developing such an electrical machine, and validates the structure using co-simulation procedures, coupling finite element analysis software (Cedrat Flux2D) with software used to implement the controller (Matlab/Simulink)...
Static partial shading on large photovoltaic arrays has already been modeled by many researchers over the last two decades. However, little research has been devoted to dynamic partial shading that is more realistic in practice. This project investigates an efficient MATLAB-based model that incorporates the dynamic characteristics of a photovoltaic (PV) module under a non-ideal moving shadow which...
Gas turbines are one of the most important internal combustion engines in the modern world's transportation. Any possible improvements of the performance of the gas turbine engines would help to minimize the world's annual fossil fuel consumption and hence the emissions of the adverse greenhouse gases. Therefore, modelling and simulation of gas turbines have been a major focus of many fields in aviation...
The proposed paper deals with the problem of modelling and simulation of a dual-redundancy Electro-Hydrostatic Actuator (DREHA) by the way of co-simulation based on AMESim and MATLAB. With the development of More Electric Aircraft (MEA) technology, integrated Power-by-Wire (PBW) actuator will be used in the airborne actuation system. As an important PBW actuation system, EHA has virtues of high efficiency,...
This paper focuses on the model predictive current control of power converters with the aim of indicating the influence of some system parameters used in predictive control on the load current and load voltage. A model predictive current control algorithm is proposed, specifically directed at the utilization of power obtained from renewable energy systems (RESs). In this study the renewable energy...
Currently, the research of GIS and environmental models has made great progress, but the combination of both is still a difficulty. Aiming at the integration of GIS and environment model, the paper drew some functional components from open source geographic information system, and embedded the atmosphere environment model into GIS as application program interface by hybrid programming, achieved the...
In many cases, the signal of interest is obscured by noise. Noise such as the inherent noise of system and the interference of the external environment is inevitable, so a weak signal detection system is designed in this paper to solve the de-noising problem in strong noise backgrounds. The core of the system is a dual-phase lock-in amplifier based on an analog multiplier. Lock-in Amplifier (LIA)...
In this paper, a radar based on stepped frequency continues wave (SFCW) method is proposed to gain higher range resolution. The method is intended to makes the bandwidth becoming wider without affecting the pulse width to be shorter. Here, the bandwidth equals to the step frequency and the number of generated pulses. The simulation is performed in Matlab® and GNU Radio to measure range detection and...
Discontinuous Galerkin finite element method (DG-FEM) for electromagnetic simulation is implemented using the Julia language in this work. DG-FEM is a combination of finite element method and finite volume method and it employs high-order spatial and temporal basis to obtain high-order accuracy. Julia is a relative new language specially built for high performance computing. It is adopted in DG-FEM...
Modeling complex mechatronic systems containing parts such as mechanics, electronics and software is a major challenge for the engineering of automation production systems. As a result, many modeling languages as well as tools (e.g. petri nets or MATLAB/Simulink) and verification approaches (e.g. testing, simulation or formal verification) that focus on special challenges to model the mechatronic...
A hierarchical decentralized network reconfiguration approach to minimize power losses for smart distribution systems is presented in Part I. In this paper, the proposed approach is applied to four test distribution systems to examine its performance. A demonstration system consisting of the test system and distributed intelligent agents is built using Matlab/Simulink to illustrate how the decentralized...
This paper presents a method of modelling a vacuum circuit breaker and surge protection in the Matlab package. The simulations were carried out in the capacity circuit with varistor surge protection.
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