MATLAB / Simulink
The Research of the DFM Variable Speed System for the Vector Control with DSP
Doubly-fed electric machine(DFM) is a new type of electric machine which combines the advantage of the traditional induction machine and synchronous machine. Not only it can fulfill the need of general mechanical variable speed system,but also can supply reactive power to power system by modulating the frequency and phase of the rotor current. Besides,it can [...]
Study on Simulation of Hydropower Governing System
It is an important part of group of hydro-turbine governing system, so hydro-turbine governing system dynamics is directly related to the merits of the quality of production efficiency and safety. During the operation of the hydraulic unit often external hydraulic or electrical disturbance, the stable condition of hydro-turbine will be breaked. There were minor fluctuations [...]
Research on Wind Power Connected to Power Grid by Fractional Frequency Transmission System
Wind power, solar power and other new environmental protection and renewable energy has become a new power system development trend. With the gradual expansion of wind power installed capacity, grid-connected wind farm has become the main form of wind power utility. Besides, wind energy resources are always away from load centers. So the transmission and [...]
Analysis and Simulation of Controll Algorithm for Cnc Linear Motor-driven Motion
With the increasing demands on the CNC machining technology for high speed, ultra-high speed, precision and ultra precision, zero transmission, the linear servo feeding system with highly responsive capability has come into being, and linear drive technology has found wide application in the field of precision positioning. Compared with the traditional feeding of “rotary motor [...]
The Analysis of Motor Speed Control System and Control Strategy Study
This paper design a speed control system. use of variable pump and hydraulic pump motor combination of thehydraulicpower mechanism; valve-controlled hydraulic cylinders used to predictor control of pump -control system, as the displacement of variable pump control Institutions (that is, using positionto loop carry through variable-pump control, Itcomposed by the servo valve、hydraulic cylinders、proportional amplifier,in order [...]
The Study and Design of Cooling Water Temperature Control System of Marine Diesel Engine
Marine diesel engine is a power plant with big inertia, multi-variable, multi-output and complexity operating conditions. Its working conditions have direct impaction on navigation security and ships operating profits. The temperature of cooling water of marine diesel engine is an important reference. It is very significant to control the temperature of cooling water accurately. For [...]
Modeling and Co-simulation of the Electric Power Steerning System
Electric power steering system is the key to the vehicle handling stability and driving safety.It will solve the paradox about vehicle turning between “light” and “flexibility”,to let the good controllability and stability,and energy-saving environmental protection become hot spots of modern vehide research.In the research of combined simulation about vehicle EPS.Because of the complexity of simplified [...]