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This paper describes the design and implementation of a vibration energy harvesting device, which can act as a supplement for the vehicle power system. The device uses the permanent-magnet linear generator for energy harvesting purpose. The power converter of the system consists of bridge rectifiers and a buck-boost converter. A switching fuzzy proportional-integral controller is designed for regulating...
The brushless doubly-fed generator (BDFG) is a new typical machine of the variable speed and constant frequency wind power generation system. Comparing with the conventional AC excited induction generators, BDFG not only has simple and credible structure, but robustness and reliability of the reluctance or cage -rotor inductance machines. Using d-q rotor reference coordinate system as a start point,...
In this paper, Study on the streams encryption key generator based on Chaos Theory, and the number of parameters by introducing a range of piecewise linear chaotic map(PLCM), to achieve encryption algorithm design, analysis results show that this algorithm has good initial value sensitivity nature, distribution, as well as auto-correlation function features. This design can use the logic hardware...
With the development of large scale integrated circuit technology and computer technology, that using a microprocessor as the core microcomputer of excitation thyristor converter will become the main development of thyristor converters in the future. This paper introduces the features of dsPIC30F6011, and focuses on the structure and function of the intelligent detection and control modules in the...
Networked control systems are becoming increasingly important due to its simplicity, scalability, flexibility. However, two challenges are network delay and packet dropout. Applying a real-time queuing protocol, we are able to limit the network delay within a control period. In this way, control signals are always sent to the actuator within a fixed time interval, making the performance of the overall...
The rapid penetration of a large number of distributed generations poses new challenges for the safe and effective operation of the main grid. A better way to realize the emerging potential of distributed generation is to take a system approach which views generation and associated loads as a subsystem or a ldquomicro-gridrdquo. The DFIG with storage system is the main micro-source in this paper....
Wearable electronic devices are becoming inevitable part of life in this century. Traditional way of powering wearable electronics devices lies on batteries. As power requirements decrease for most wearable devices, it is feasible to harvest a useful amount of energy from a normal range of human activity. Researchers so far have investigated only one type of actuation techniques such as electromagnetic,...
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