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This paper aims to highlight the possibility of interactively determining the performance of dynamic systems using virtual instrumentation which include Matlab scripts, so as through this combination it can obtain the of virtual tools that work as simulators for certain systems or processes.
The parameters estimation of mixture distributions is an important task in statistical signal processing, Pattern recognition, blind equalization and other modern statistical tasks often call for mixture estimation. This paper aims to provide a realistic distribution based on Mixture of Generalized Gaussian distribution (MGG), which has the advantage to characterize the variability of shape parameter...
In this paper, a sliding mode implementation of a Proportional Integral Derivative PID controller is proposed. The objective of the controller designed is to control a DC-DC buck converter to track a desired set point voltage. The complexity of this controller arises from the fact that the only information available to the controller is the measured error. The buck converter inductance and capacitance...
In this paper the problems of modeling, simulation and control of marine electrical network systems is addressed. The first goal is to model electrical embedded networks, in a simple but realistic way. A complete model for a one machine network is described. Loads are categorized according to their behavior. The essential problem of keeping output voltage constant during abrupt load commutations is...
Aiming at the simulation for the prime mover supplied by thyristor, the principle and the fundamental methods to dynamically simulate the self-balancing characteristics of a turbine are studied in this paper. A new scheme is presented to simulate the characteristics of the prime mover when the generator simulator operates in various conditions. Nonlinear control components are adopted to solve long-existing...
A surge of needs for the low carbon society promotes a spread of electric vehicle (EV). EVs could be charged at night simultaneously, as a result, severe voltage drop may happen. The authors have proposed the method which can compensate the voltage drop caused by EV charging by means of adjusting charging schedules and controlling reactive power. However, though the method can avoid the voltage violation,...
With the development of interconnected power grids, the reactive coupling among areas is growing stronger, and the regional voltage control coordination problem is getting more serious as well. To solve this problem, a multi-area coordinated voltage control method is proposed in this paper, by introducing dynamic games to voltage control. A multi-area coordinated voltage control model based on dynamic...
Aiming at the simulation for the prime mover supplied by thyristor, the principle and the fundamental methods to dynamically simulate the self-balancing characteristics of a turbine are studied in this paper. A new scheme is presented to simulate the characteristics of the prime mover when the generator simulator operates in various conditions. Nonlinear control components are adopted to solve long-existing...
Solar systems are highly penetrating into the electrical networks all over the world currently. Solar radiation is not steady and never will be, and so, a storage system is required to ensure a stable and continuous supply. To increase the reliability of the system whether islanded or network connected, it is better to have a storage system. After all, the decision of whether to use a storage system...
This paper presents a new approach for shortterm load forecasting using the participatory learning paradigm. Participatory learning paradigm is a new training procedure that follows the human learning mechanism adopting an acceptance mechanism to determine which observation is used based upon its compatibility with the current beliefs. Here, participatory learning is used to train a class of hybrid...
The low and medium voltage renewable energy based dc distribution systems are catching increased attention world-wide due to their inherent benefits over ac systems. Higher efficiency, simple control, more suitable for integration of the sources producing dc power, are some of the main benefits of the dc systems. However, these systems are prone to serious stability issues caused by the constant power...
Fault detection and correction algorithms has been widely adopted in the various data communication system with view to protect the system from crashing due to hard and soft errors. As the system becomes more complex with the reduction of transistor size, fault detection and correction schemes are not limited to data transfer process. Internal components of the system's processor are also susceptible...
Even though the power systems for the last century have been running on ac, with the emerging dc technologies such as solar photovoltaic (PV), LED lights, electric vehicles (EVs) and so on the interest for dc networks are also increasing. Rather than the traditional practice of inverting the dc power output of PVs to ac, it would be efficient if the dc power is used without inverting. With the development...
In this paper, Health Information Systems (HIS) is presented to discuss factors that enhance physician use of the application. The study adopts the Unified Theory of Acceptance and Use of Technology (UTAUT), which has been widely used in Information Systems (IS) research to study the behaviour of individuals that uses information technology. The theory is then extended with Self Efficacy theory in...
Distributed key-value caching system has been deployed in many kinds of clouds. The effect of load balancing between each node is crucial in key-value caching system in clouds. Invalidation is a feature of the data in the key-value caching system, and making some cache invalid is efficient instead of adjusting the load location when load balancing. It is worth studying that how to utilize the feature...
A new method to design a Voltage Source Inverter (VSI) for power factor correction with three phase induction machine as load is proposed. The machine parameters are obtained from practical induction machine. These parameters are employed for the simulation of induction machine. The control strategy presented in this paper is based on instantaneous reactive power theory. Simulation is carried out...
For the widely-used power system model consisting of the generator swing equations and the power flow equations resulting in a system of differential algebraic equations (DAEs), we introduce a sufficient and necessary solvability condition for the linearized model. This condition is based on the topological structure of the power system. Furthermore we show sufficient conditions for the linearized...
Cloud computing offers the flexibility to dynamically size the infrastructure in response to changes in workload demand. While both horizontal and vertical scaling of infrastructure is supported by major cloud providers, these scaling options differ significantly in terms of their cost, provisioning time, and their impact on workload performance. Importantly, the efficacy of horizontal and vertical...
Interest in renewable energy resources (RER) is increased due to improved public awareness of the high energy cost and adverse environmental impacts of conventional energy resources. Causes a transition to a new generation of power networks which, among others characteristics, allows more flexible demand consumption under various Demand Response Programs (DRPs). Variable generation and stochastic...
Threshold load control is one of the key tools in preventing overload in telecommunication networks. Its implementation as hysteretic control mechanism is used for detecting and mitigating congestion in Next Generation Networks, where session initiation protocol is the main signalling protocol. In this paper single-server finite capacity queuing system with constant service time, poisson input flows...
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