Under partially shaded conditions, the P-U characteristic of the photovoltaic (PV) array is characterized by multiple peaks. The presence of multiple peaks reduces the effectiveness of the existing maximum power point...
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In our previous work, moving pattern based modeling and control was proposed. In this paper, based on our previous work, a fault detection method based on moving pattern is proposed, and interval number is still used ...
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In this paper, we designed a new type of high precision 1 μA constant current source after deeply studying the high precision precise dc constant current source. Compared with the traditional constant current source,...
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With the increase of switching frequency of power switch, EMI noise pollution becomes more and more serious. In order to solve this problem, in this paper, the switch power supply filter and passive EMI filter, active...
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With the increase of switching frequency of power switch, EMI noise pollution becomes more and more serious. In order to solve this problem, in this paper, the switch power supply filter and passive EMI filter, active EMI filter is studied. It mainly research active EMI filter with feed forward, non-inductive current detection device of active EMI filter and active EMI filter for threephase inverter motor. To solve this problem which is that EMI noise pollution has become more serious along with the increase of switching frequency switch power supply, the increasingly serious pollution make the EMI filter technology have a wide range of applications and put forward higher request to filter technology
A wireless microrobot may be used in the small space and biomedical practice, especially in the industrial field and biomedical application. In this paper, we designed a new kind of wireless microrobot with symmetrica...
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ISBN:
(纸本)9781479927456
A wireless microrobot may be used in the small space and biomedical practice, especially in the industrial field and biomedical application. In this paper, we designed a new kind of wireless microrobot with symmetrical spiral structure, which have more compact volume, completely symmetrical mechanical structure, quick response, forward-backward motions and can clean the dirt adhering to the inner wall. According to the hydromechanical lubrication theory and Newton viscous law, we build the motion model of the microrobot. Through analysis, simulations and experiments, this paper had evaluated the effect of spiral depth and thread unit number. In addition, we verified the feasibility of this new kind of microrobots, and obtained the moving speeds of forward-backward and upward-downward motion in the pipe. The experimental results indicated that the maximum moving speed is 22.68 mm/s at 12 Hz in the horizontal direction and 6.29 mm/s at 13Hz in the vertical direction with input currents of 0.7A. Finally, we designed a control panel for this system, which can control the microrobot current motion states easily, and make our system more portable and compact. The designed wireless microrobot can move smoothly in water and other liquid medium and is very useful in the industrial application and microsurgery application.
In the distribution network fault section positioning, the standard genetic algorithm can be used effectively. But the network including Distributed Generator power supply has its own characteristics, and the genetic ...
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The stable linear switched systems will converge to the balance Point. If different switched laws be chosen, the convergence Process will not be the same, so there is an optimal switched law. The issues of optimal swi...
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For the hysteretic problems of using offline monitoring in traditional petrochemical corporations heating furnace, a design of realizing multimode heating furnace combustion state online monitoring system based on Zig...
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On the bases of the comprehensive analysis, this paper puts forward a system design plan about the topology and control strategy of the charging system in vehicle. The system design plan has high performance and carri...
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As an application layer protocol of CAN bus, CANopen has wide application in industry. This paper presents a kind of CANopen slave node based on AVR hardware platform of AT90CAN128. Firstly the structure of the slave ...
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