The energy conversion efficiency of commercial solar PV is around 15-19%. Millions dollars are spent in order to gain a small percentage efficiency. power generation can be increased using sun tracking technology. However, the design tracker usually very complicated and expensive. Units heavy prone breakdown installation difficult. In present study, one-axis three-position (1A-3P) low- cost as BIPV was developed tested. comparative test 1A-3P system started from 2010/3/01 carried out....

Summary Conventional shake tables employ linear controllers such as proportional‐integral‐derivative or loop shaping to regulate the movement. However, it is difficult tune a controller achieve accurate and robust tracking of different reference signals under payloads. The challenges are mainly due nonlinearity in hydraulic actuator dynamics specimen behavior. Moreover, high‐frequency signal using tends cause saturation instability. In this paper, hierarchical control strategy proposed...

In conventional position sensorless permanent magnet (PM) machine drives, the rotor is obtained from phase-locked loop (PLL) with regulation of spatial signal in estimated back electromotive force (EMF) voltages. Due to sinusoidal distribution back-EMF voltages, a small-signal approximation assumed PLL order estimate position. That is, almost equal actual per sample instant. However, at high speed when ratio sampling frequency, fsample, over operating fe, low, this might not be valid during...

Summary Hybrid simulation (HS) is a novel technique to combine analytical and experimental sub‐assemblies examine the dynamic responses of structure during an earthquake shaking. Traditionally, HS uses displacement‐based control where finite element program calculates trial displacements applies them both sub‐assemblies. Displacement‐based (DHS) has been proven work well for most structural However, specimens with high stiffness, traditional DHS does not because it difficult precisely...

This paper improves the permanent magnet (PM) machine position sensorless drive specifically for high speed operation. To obtain rotor position, an approximation is typically assumed on estimator where estimated almost equal to actual per sample instant. small signal might not be valid at when ratio of sampling frequency over operating lower than 10. In this paper, limitation EMF-based analyzed. By modifying without approximation, it shown that can improve operate 30-krpm with only five...

This paper presents an economical and reliable vision/laser-based car following control system. The vision sensor is integrated with a 2-D laser scanner to achieve moving target recognition, discrimination tracking performance. In highly complex environment dynamic driving conditions, where the targeted vehicle can hardly be distinguished from nearby vehicles solely based on data, provide more information of target. Through Consensus- Matching Tracking Keypoints (CMTK) algorithm, able assist...

Shaking table testing method is one of the main sources experimental means to evaluate dynamic response structural systems under earthquake loads. The technique produces nearly realistic prototype conditions, giving important insight into critical issues such as collapse mechanisms, component failures, acceleration amplifications, residual displacements and post-earthquake capacities. Traditional tuning shaking relies on use linear controllers, which are designed regulate systems. With most...

Abstract In order to meet the application requirements of position and attitude measurement flying spinning vehicle, a new integrated method based on single antenna is proposed in this paper. For navigation traditional use satellite receiver for positioning, at same time, inertial system or magnetometer measurement, combination two used complete measurement. The paper, one hand, reduce number components, greatly cost use, other improve reliability Based it, paper uses carrier signal...