In this paper, a novel single-phase unified power quality controller (UPQC) is proposed, which can compensate for various power quality problems from grid side and load side. Firstly, the paper introduces the topological structure and basic working principle of the new single-phase unified power quality controller, and then introduces the topological structure and voltage stability

With the rapid development of computer technology, thermostatic element the application field of computer is more and more extensive. Digital computer has been widely used not only in scientific calculation and data processing, but also in the field of control system design. The basic application of digital computer in the design of control system is

Eliminating and controlling the swing of the crane is of great significance for improving the crane’s working efficiency and reducing the hidden danger of safety production in loading and unloading operations. Considering the nonlinearity, time-varying and uncertainties of the swing system of crane, a method combining traditional PD control with fuzzy control is proposed, which

Because of its convenience and reliability, PLC programmable logic controller technology has been effectively used in mine electromechanical control, greatly improving the efficiency of mining. PLC programmable logic controller is a kind of embedded microcomputers widely used in modern industrial control. It can easily replace the old relay control system. Compared with traditional relays, PLC

In modern industrial production, the traditional manual operation has been far from achieving good control quality. At present, in the field of electrical control, PLC is widely used at home and abroad. Especially in the field of high temperature, high pressure, inflammable, explosive and high-risk production, PLC is more widely used because of its high

With the continuous development of science and technology, the application of programmable controller in concrete towing pump is becoming more and more widespread. The use of programmable controller replaces the complicated logic wiring of separating elements in the past, effectively guarantees the reliability of the operation of concrete towing pump. Firstly, the MC6H/32 programmable controller

Aiming at the serious safety accidents happened in escalators in recent years, according to the functional safety standard IEC6150 of electrical/electronic/programmable electronic safety related systems, this paper studies the hardware redundancy technology and method of dual-computer redundancy system, puts forward a dual-CPU system scheme of high reliability escalator safety controller based on dual-computer hot backup,

Through the characteristics of programmable controllers and application courses and students, this paper leads to the introduction of teachers in the teaching of programmable controllers and application courses. Programmable Controller and Application Course is a compulsory course of Electrical Engineering Specialty in our university, which has the characteristics of strong practicality and wide application. The

The control performance of fractional order PDU controller and conventional PD controller in inverted pendulum system is compared and analyzed. Taking the linear inverted pendulum as the controlled object, the state space equation of the whole system is established by Newton-Euler method. A dual-loop PD control scheme is proposed. The two controlled variables of the

Software Defined Network, referred to as SND, is the latest network architecture design concept proposed in recent years. 　　Its basic attributes include the separation of forwarding and control planes, and the centralization of network control and open flexible programming interfaces. This paper introduces the SND technology in detail, then expounds the networking logic and network