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Real-time simulation of modular multilevel converter (MMC)-based HVDC is one of the most important and difficult technologies in the area of power electronics research. This paper presents a methodology for the hardware in loop (HIL) CPU/FPGA-based real-time simulation of a one-terminal MMC HVDC of up to 468 levels using a detailed equivalent model, and the simulation system is based on full-scale...
Many key problems of the control system can be effectively reflected by the inverted pendulum system, such as the problem of nonlinear system, robustness, servo system, stabilization and tracking, etc. Any control problem with whose center is above and fulcrum is blow can be approximate into an inverted pendulum model, so the study of inverted pendulum has important practical significance. In this...
Unexpected shift often occurs in the working of an automatic transmission. This paper analyzes the causes of this phenomenon and its influences on the heavy-duty vehicles' AT. The method of setting a reasonable shift delay interval and realtime detection on torque converter speed ration is proposed to solve this problem. The shift control strategy to eliminate unexpected shifts is designed and validated...
This paper focus on the application of integrated robot case packer in the secondary packaging line. The core component of the case packer is a new high speed pick-and-place parallel robot with three translational degrees of freedom. Case opening, packing, sealing and some other functions are integrated in the case packer. The scheme of control system and network configuration based on Simotion platform...
In this paper, we propose a new study of the robot control by using model following control system (MFCS). With the MFCS method , we obtain a simple input control law. The bounded property of the internal states for the control is given and the utility of this control design is guaranteed. Finally, examples are given to illustrate the effectiveness of the proposed method, and MFCS control techniques...
This paper, we propose a new design of linear descriptor discrete time mechanical system control law by using model following control system (MFCS). In previous studies, a method of MFCS was proposed by S. Okubo. In this paper, the method of MFCS will be extended to discrete time descriptor mechanical system. The bounded property of internal states for control system is given and utility of this control...
We can design linear predictive model following control system (PMFCS) with commensurate time-delay whose internal states are bounded. Time-delay widely exists among controlled objects in computer control processes, power systems, chemical processing systems, metallurgical processing systems, environmental systems and communication systems transmission systems and other industrial production activities...
Considering the mathematical model for the control system of intermediate bending roll in UC rolling mill is time-varying and uncertain, the conventional PID algorithm can't achieve a rapid and accurate response when some parameters change, so that the precision of the sheet shape can't be easily ensured. To realize the accurate control for the intermediate bending roll, a fuzzy neural network controller...
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