Matlab
Research on DTC System for Asynchronous Motor Based on SVPWM
Direct Torque Control, following the vector control technique, is an emerging technique in the field of AC Motor speed control. Using the space vector analysis method, the DTC technique calculates and controls the torque and flux linkage in the stator coordinate system in order to obtain higher dynamic torque performance. Comparison of vector control, DTC [...]
Research on DTC System for Asynchronous Motor Based on SVPWM
Direct Torque Control, following the vector control technique, is an emerging technique in the field of AC Motor speed control. Using the space vector analysis method, the DTC technique calculates and controls the torque and flux linkage in the stator coordinate system in order to obtain higher dynamic torque performance. Comparison of vector control, DTC [...]
Design of Differential Interference Contrast Microscope
Differential interference contrast (DIC) is a kind of technology of two beams of polarized light interference. Since that the lateral shear between the two beams is smaller than the value of resolution power of objective lens of the microscopy, microcosmic height change of the surface of the spaceman is exhibited on the interference background with [...]
Multi-water Source & Multi-user Joint Optimized Operation of Handan
Water is the source of live and the basic of substance.Besides land of natural resources,water resources are most closely related to production and human life.With economic and social developmet and with municipal process quickening, people have higher demand for water quality and water quantity.But fresh water resources that can be used is limited.So scarce water [...]
A Study of Spark Advance and Electronic Throttle Control on Gasoline
Electronic control technology of engine is one of the most important ways to deal with energy crisis and environmental protection. At the present time, embedded system technology, V-model and advanced aided design tools are being widely applied in the development of engine electronic control system. With”electronic control system design of 3-cylinder vertical motorcycle engine for [...]
Research on Non-fault Triping Criterion of High-voltage Transmission Line Based on Local Electrical Measurements
With the rapid development of power grid construction, EHV/UHV projects have been put into operation, the size and complexity of the grid have greatly increased the requirements to the security and stability of the grid control system have become more sophisticated, non-fault triping maloperation or refuse to move when the accident occurred make a huge [...]
Calculation of Micropile Internal Forces When Reinforce the Slope
This paper studies the micropile and the slope of the internal force calculation program design.Landslide is a geological disaster which is widely distributed and occurred in a high-frequency rate. For conditions it occurred and formation mechanism is complex and changeable, it easily takes harm to people’s production and life. With the economic development and land’s [...]
Research on the Equivalent Truss Model of Reinforced Concrete Structure
Reinforced concrete structure is mostly wised used in civil engineering. FEM is generally used to analyze the mechanical behavior of important structures or structures under complicated loads. For traditional finite element, firstly, it is complex to built the displacement field function and often with lager computational calculation; secondly, because the constitutive relation curve of concrete [...]
Study on the Sewerage System Optimization for Shiqiao Area, Panyu District, Guangzhou City
Water is the essential substance of our daily life. It turns to be living sewage after being used by people, and becomes as waste water after being used by industry and enterprise. The basic task of sewage pipe net is to ingather and transport waste water to sewage managing equipment in due course, security and [...]