In order to improve the energy-saving effect, thermostatic element reduce power consumption and increase output power gain of large-scale electrical control equipment, an energy-saving design method of large-scale electrical controller based on the fitness compensation of inner-loop controller and DC/AC inversion model is proposed. The controller unit model of large-scale electrical equipment is constructed, the

In this paper, a portable intelligent fan controller system based on STM8 single chip computer, sensor technology and battery charging technology is proposed. The hardware and software design of the mobile intelligent fan control system is discussed, and it has been successfully applied to the occasions where ventilation and cooling need to be carried out

This paper analyses the testing status of domestic construction machinery controller, introduces the hardware-in-the-loop principle, leads to IEC61131-3 standard, puts forward the hardware-in-the-loop testing platform of construction machinery based on IEC61131, and the problems that the platform can solve. Then, the structure of the platform is introduced in detail. Finally, the development direction of the

IGBT water-cooled radiator used in electric vehicle motor controller is compact in structure, and the activity of cooling water in the channel is complex, which makes it difficult to determine the appropriate activity state model for the thermal simulation of water-cooled radiator. For the IGBT module, which is the primary heat source of the new

This paper introduces the hardware structure, software design and specific implementation of speed regulation scheme of brushless DC motor controller based on PIC16F873A. This controller adopts current single closed-loop control strategy and PWM speed regulation mode to control brushless DC motor. 　　The validation shows that the controller has simple structure, stable and reliable performance and

For LRXAY-8 printer, a portable angle measuring device is designed to record the rotation angle of the printer’s spindle. The device has only three buttons: the “Set/Clear Start” key, ” ” key and “_” key, which can complete the angle measurement and the change and storage of measurement data. Printers play an important role in

With the rapid development of social economy and the improvement of modern science and technology, programmable logic controller (hereinafter referred to as PLC) has been widely used in automatic control of industrial production, especially in the automatic control of coal mine production and transportation, because of its advantages of convenient programming, simple structure and good

The application technology of PLC (Programmable Logic Controller) has a good application value for improving the practical professional skills of the students majoring in maintenance electrics, helping them to learn theoretical knowledge and operational skills, and also increasing great advantages for their future employment. 　　Based on many years of practical teaching and the characteristics of

For the apartment security problem, the apartment security controller is designed by using the FPGA. Real-time perception and monitoring of the room’s security status are carried out by using a variety of sensors. By receiving and analyzing the data of different sensors, the security controller realizes the functions of false alarm, fire alarm, anti-theft alarm

Temperature control is widely used in industry, such as boiler temperature control systems in iron and steel plants, power plants, chemical plants and so on. It aims at the large inertia, large delay and non-linear characteristics of main steam temperature control objects in thermal power plants. The PID control algorithm combined with the fuzzy control