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Hammerstein system identification is difficult because there exist the product items of the parameters between the static nonlinear block and the dynamic linear block. This paper presents a novel parameter separation based recursive least squares (PS-RLS) identification algorithm for resolving this problem. Its basic idea is to use a linear filter to filter the output data and the noise, and then...
In this paper, we extends the innovation vector to the innovation matrices and presents a filtering based multi-innovation extended stochastic gradient algorithm for multi-input multi-output controlled autoregressive moving average systems. The basic idea is using the filtering technique to transform a multivariable system into two identification models, then to identify the parameters of these two...
Connection Manager Intelligence Agent's (CMIA) an attractive feature is use the network traffic and behavior with multi-attributes to find the best network devices and connection devices meet user habits that it possible to access various network contents everywhere at any time. In this agent, information process is thoroughly integrated into embedded system for connection manager of MeeGo or Android...
This paper introduces the design of 800kW doubly-fed induction machine (DFIM) system, which include DFIM system's structure, vector control strategy and the operation of converter. Three-phase, half-wave cycloconverter and stator flux-orientated vector control are adopted to achieve motor speed control and permit leading power factor (PF) operation on the stator side. There is no inter-group reactor...
Traditional time synchronization algorithm focuses on improving the synchronization mechanism to improve the synchronization accuracy. With development of time synchronization, more and more focuses on how to process the synchronization information to improve the synchronization accuracy. Maximum likelihood estimation method is one of the mathematical statistics theories commonly used in parameter...
This paper focuses on the research and analysis of a typical large inertia electro-hydraulic position control system using single-rod cylinder. Firstly, the mathematical models of the main components such as the electro-hydraulic servovalve and cylinder are described. Then the model of the whole control system is established based on that. The control method of the system is the conventional PI algorithm...
It is new application to use doubly-fed induction motor (DFIM) in pump stations in China. This paper presents the design and experiment of a 155 kW DFIM system. In order to solve the problem which occurs during the motor changing its working condition from asynchrony to AC excitation, a strategy of two-step AC excitation is proposed. Three-phase half-wave cycleconverter and stator flux-orientated...
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