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As the main power source of the industrial system, the control accuracy of a motor directly affects the efficient operation of the system. In this paper, an adaptive control strategy based on disturbance observer is proposed for a Permanent Magnet Synchronous Motor (PMSM) with multiple disturbances. Firstly, the multiple disturbances in a PMSM are divided into the modeled load and the norm bounded...
Observability of Boolean networks uniquely determines an initial condition of Boolean networks with a given output sequence. The objective of this study is to simplify the observability determination of Boolean networks and to offer a strategy to reconstruct states of Boolean networks with partial states' measurement. For a given Boolean dynamics and its measurement function, we extracted implicit...
The features of Coriolis mass flow sensor output signal are analyzed, and a mathematical model of the time difference for the signals is built to evaluate the rationality and limitation of the proposed correction method when Coriolis mass flowmeter (CMF) is used to measure the gas-liquid two-phase flow. According to the experimental data of Coriolis mass flow sensor output signals under the gas-liquid...
Gene regulation studies reveal unknown biological functions in disease progression. As more time-course datasets become available, interactions among the regulators and their associated target genes may better describe the evolution of gene regulatory networks. Currently in many research studies, interaction delay is not considered. Such delay is embedded in the network due to the intrinsic temporal...
In the dynamic and complex market environment, the conventional conveyor assembly line can no longer meet customers' demands effectively. The way of dismantling the conventional conveyor assembly line and redesigning a flexible manufacturing system has been attracting an increasing amount of attention both in the academics and production practices. Such an advanced manufacturing system simultaneously...
Customer satisfaction was the basic of building long-tern buyer-seller relationship, and customer loyalty was the key ways for firm's payoff and developing. As the internets became a media of building buyer-seller relationship, customer's satisfaction on product or service turn around website satisfaction, and their loyalty represent directly on website loyalty. Moreover the technology readiness of...
A novel single-stage three phase high power factor converter based on three-level zero-voltage and zero-current soft-switching circuit is proposed, which can mitigate a contradiction between voltage rating of power switches and high-power factor in the conventional three-phase single-switch DCM boost power-factor correction circuit and provides softs-witch for all power switches. The three-level structure...
This paper summarized the basic principle of magnetic stimulation, and established the connection between action potential of neural cell and electrical parameters by simulating the neural model. The simulation of coil electromagnetic field and calculation of circuit mathematical model were also combined to derive out the electrical parameters. They are charging voltage, discharging current, stimulating...
Construction project is regarded as a complex network system in which quality reliability is an important index to express quality grade, so quality -cost Optimization is one of the most crucial aspects of construction project planning, which in fact is a multi objective optimization problem. A mathematical model is established and an evolutionary algorithm genetic algorithm (GA) was employed to solve...
The control strategy for three-phase-high-power-factor PWM rectifier is studied, and the methodology of building the small signal model of the main power circuit is proposed in this paper. High frequency model for the rectifier mentioned and the input-to-output transfer function for the system are deduced with analysis. Design principle and method of the voltage regulator are given based on the model...
Numerical simulation methodology based on high frequency mathematical model of high power factor PWM rectifier is proposed in this paper. And input to output transform function is deduced. With the help of input to output transform function, the design method of voltage regulator has been presented. The simulation for three-phase PWM rectifier is implemented with Runge-Kutta, thus comprehensive simulation...
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