In recent years, with the dramatic improvement of people’s living standards, people put forward higher requirements for the comfort of living environment. In this context, the application of air conditioning in residential buildings is increasing. With the increasing of domestic air-conditioning, the overall energy consumption of residential buildings has further increased, which is contrary to

The installed capacity of the 25MW power plant of Kungang Power and Energy Branch is 25MW. It has been 8 years since it was built and put into operation in 2005. Its mechanical speed regulating feedback component, spring, has been deformed due to frequent operation at high temperature for a long time. Since 2010, the

With the rapid development of the automotive industry, stamping technology, as the first of the four major automotive manufacturing processes, has also been developed rapidly. The larger the scale of automobile spare parts manufacturing, the more important is low cost and high output. The use of multi-station press greatly improves the efficiency of stamping production.

In this paper, the verification platform and environment for SPI bus controller are built by applying advanced verification methodology of UVM, and the functional verification of data transmission in different modes is realized. A reusable and efficient verification method is provided, which is helpful to improve the verification efficiency and shorten the design cycle. With

Programmable Logic Controller (PLC) is abbreviated as PLC. Its function in mine electromechanical control is mainly to control, calculate, record and operate the electromechanical logic situation by using the memory of programmable logic controller. This is mainly accomplished by transmitting in digital form or mode. Because of its convenience and reliability, more and more programmable

In recent years, with the rapid development of science and technology, PLC programmable controller has also made rapid progress under the development of computer technology, and its performance indicators and functions have been further improved and enriched, so it has been widely used in many industries and become the core of control systems in various

With the continuous development of China’s nuclear power projects, the reliability and safety of nuclear power equipment have also attracted much attention. The electrical equipment used in nuclear power field circuits must be tested to verify whether the equipment can work normally during and after earthquake. The appraisal test mainly includes anti-seismic test and aging

Observer-based controller design for a class of switched positive systems with interval uncertainties and time-varying delays is studied. For a class of uncertain switched time-delay positive systems, an observer-based controller is designed to guarantee the positive constraints of the augmented system by using the theory of Metzler matrix and non-negative matrix. At the same time,

After analyzing the commonly used soft start and energy saving methods of three-phase asynchronous motor, the logical working principle and PID control method of the soft start controller based on thyristor are analyzed in detail. Finally, an example is given to verify the good performance of the soft start controller in the motor start-up process.

This paper analyses the scheme of zero-line break detection controller in order to strengthen the operation control of low-voltage distribution network and improve the operation level of power grid. From January to September of 2001, 39 incidents of household appliances burning caused by zero-line disconnection occurred in a power supply company. The total number of