Fast Fourier Transform
Detection and Analysis of Hydrodynamic Noise in Hydro Turbine
The inner fluid state of hydro-turbine is essential to the efficiency, steady operation and life span of the whole hydro-turbine. Although the hydraulic design can be made great, but in reality the operation is beyond from the design conditions because of the factors, such as fabrication technology, operation situation or some uncertain factors. So it [...]
Detection and Analysis of Hydrodynamic Noise in Hydro Turbine
The inner fluid state of hydro-turbine is essential to the efficiency, steady operation and life span of the whole hydro-turbine. Although the hydraulic design can be made great, but in reality the operation is beyond from the design conditions because of the factors, such as fabrication technology, operation situation or some uncertain factors. So it [...]
Development of the Motor Power Quality Analyzer
With the day by day expansion of industry scale and the rapid development of science and technology, the electrification level of industrial equipments is higher and higher; the requirement on power quality is then more and more strict as well. Moreover, many new model of electric equipments bring electromagnetic interference into power network when they [...]
Research of FPGA-based Harmonic Detecting in Power System
This paper studies the electric power system harmonic detection problem. Harmonic detection is an important aspect of the problems in power system harmonic, and is a base to solve other problems related to harmonic.The paper describes in detail the damage which the power harmonics bring to the power system and various electrical equipments.The damage shows [...]
Response Analysis of Transmission Line Network with EMF Excitation
With the development of power systems, power grids continuously expand with voltage levels improving continuously, more and more electronic equipment are applied, however, the electromagnetic environment continued to deteriorate. Transmission line network of power system or electronic system through a network transmission line of electromagnetic pulse energy coupled into the system, which may affect the [...]
Research on Correlation Ultrasonic Flowmeter Based on TMS320F2812
In the crude oil extraction process, in order to measure and dynamic management of reservoir, determine optimum point of production and the best time of oil extraction, we are asked frequently to monitor the dynamics of single well and control the output of oil. To direct at the current traditional measurement of single well, we [...]
Design and Implementation of Power Quality Monitoring System Based on DSP
With the widespread application of high-power electronic equipments,all kinds of power quality problems caused by those have attracted high attention from researchers devoted in power field,and new technology which can improve power quality has recently become new hot spot in the research of power system.It can provide essential evidence for improving power quality,making out control [...]
Study on Nanosecond Impulse Response Analysis Methods for Detecting Transformers Winding Slight Deformation
Transformer winding deformation can cause transformer insulation defect and expand, while it can lead to mechanical strength of winding decreasing. Therefore, It’s has great significance that timely tests and judges the deformation degree of transformer winding for preventing insulation defects and deformation degree aggravating of transformer winding, advancing to prevent accidents, guaranteeing stable operation of [...]