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In order to improve the electric car battery safety early warning ability and decrease the safe accident of electric vehicle charging, the electric vehicle charging safety factors are analyzed, the security early warning index selection ways and methods are studied, and a security early warning evaluation index system is set, the evaluation method of weight for safety index is discussed. Besides,...
Data-driven predictive analytics are in use today across a number of industrial applications, but further integration is hindered by the requirement of similarity among model training and test data distributions. This paper addresses the need of learning from possibly nonstationary data streams, or under concept drift, a commonly seen phenomenon in practical applications. A simple dual-learner ensemble...
When the load of high voltage electricity consumer is low, the line will send large of capacitive reactive power to the power grid for the existing of distributed capacitance, causing lower power factor by the side of metering point substation. The electricity expenses of consumer will increase proportionally. With the case of more electricity expenses for the light-load line, this paper has established...
A new control approach based on Proportional Complex Integral control for grid-connected current is presented in this paper. The working principle is analyzed, parameter design and implementation method for PCI control are given. this controller is different from traditional PI control, PCI control can introduce the infinite gain at the fundamental frequency, so it not only can eliminate steady-state...
Based on both construction methods of the epidemic models and mechanism of the worm propagation, a new SIRS model for virus propagation is derived. By using the theory of differential equations, the propagation regularity of worm virus is discussed and the threshold of removing virus is gained. The analysis techniques of the mathematical model provide theoretical foundation of control and forecast...
Based upon the generalization of two theories in organizational capability and technological innovation, this essay discusses the role of organizational capability on technological innovation, and presents its relevant hypotheses. On analyzing the effective sample data from 509 enterprises of different industries across 10 provinces and cities in China, the empirical result reflects that dynamic capability...
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