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Fuzzy value is a special type of fuzzy set on the interval, which is a generalization of triangular-type fuzzy set. In this paper, we shall discuss some characteristics of discontinuous points of fuzzy value, and give some properties of continuous fuzzy value. An expression of compatibility function corresponding to continuous fuzzy value and t-operation is presented by using the α-cuts of the fuzzy...
The intersection is the critical node in city, and has important influence on traffic flow. Whether the intersection is controlled reasonably is the key to the safety and efficiency of the intersection. Because of the current urban intersection control type existing unreasonably, In view of this situation, typical intersection is selected as main object of study. LOS is chosen as Performance Index,...
According to the problem that D-STATCOM is difficult to promote for its high price, this paper proposes a mixing application idea of D-STATCOM and switched capacitor. As for one group of switched capacitor and D-STATCOM, a minimize loss switching strategy is presented to achieve the optimization of overall loss. And for multiple groups of switched capacitor and D-STATCOM, a cooperative control tactics...
This paper presented the method of determining critical traffic volume for installing traffic signal based on actual traffic situation in China. Considering the condition that all approach traffic streams have equal right to pass through at some special unsignalized intersections, the model of Motorcade Analysis Method was improved by introducing the lost time of saturated discharging, and then the...
This paper deals with the problems of robust stabilization and robust passive control for uncertain discrete Takagi-Sugeno (T-S) fuzzy time-delay systems. The parametric uncertainty is assumed to be norm bounded. Based on Lyapunov stability theory, a sufficient condition on the existence of delay-dependent robust passive controllers is derived firstly. Then, with the help of linear matrix inequality...
The temperature control system based on FPGA and Fuzzy-PID technology was used for the temperature control of the regeneration roaster of cold rolling Plant of Panzhihua Iron and Steel, compared with the single Fuzzy or PID control mode. The results show that Fuzzy control was used to adjust for a rapid response in a large error and PID control was used for adjustment of the details in a small error...
Air compressor is widely used in the industrial and mining establishment. Firstly, this paper analyzed the existing problem on traditional controlling way of velocity modulation system on air compressor, then elaborated the controlling principle of frequency conversion. Finally, a designed practical example by frequency conversion technical is given on the air compressor. It is proved that frequency...
Designed an automatic temperature control (ATC) system to arise the stability of laser diode (LD). Established a mathematical model of thermoelectric cooler (TEC) based on the peltier cooling principle. Simulated ATC by MATLAB and analyzed on the simulation results. Designed ATC circuit driver of the TEC of LD. Obtain high speed and high precision ATC system in the room temperature environment. Its...
This is a design of a stable and reliable control and drive system of IGBT, according to the requirement of the dynamic harmonic filter. This design is centrally controlled by a 89C52 MCU and it mainly consists of 89C52 MCU, FPGA, touch screen, alarm circuit, drive and protection circuit, intelligent electrical energy sensor. It has main functions of collection of harmonic parameters of the power...
The maintenance and technical support for complex artillery weapon communication system is very difficult in the army. In order to solve this problem, the paper designed a detection system for communication system, and provided a detection method which combining the overall excitation overall detection mode and subsection excitation sub-step detection mode. The detection system adopted the separation...
In this paper, an efficient power control system for distributed generation system was proposed. In this design, the sequential quadratic programming algorithm was first utilized to obtain an optimal solution for power distribution among multiple distributed generation units. Fuzzy system then was developed to implement the optimal strategies on the basis of optimal solution. In addition, the parameters...
Monitoring and warning the expressway exit incidents is an effective way to prevent expressway accidents. This paper deals with illegal changing lanes and illegal parking behavior as the major incidents that should be monitored. In this paper, we introduce a system that aims to reduce the chance of traffic delay and traffic conflict and has put it into practice to test its effectiveness. According...
To study the injection characteristics the double-solenoid valve system is designed in different conditions, and double solenoid valve test system and a test platform and built to complete the test content. Conditions on the regulation of the same target features, performance and low-speed jet loop dynamic adjustment of performance between the test result analysis. Results show that double solenoid...
The H∞ state feedback control problem for networked control systems of 2-DOF ceramic manipulators with disturbances was studied. At first, a networked robust control model of ceramic manipulators is made. Then, sufficient conditions of H∞ robust stability is given for networked control systems of ceramic manipulators under the maximum network time-delay condition. In addition, the state feedback control...
Detecting harmonic current in net is a key to compensate the system. Aimed at the problem of harmonic distortion in electric arc furnace system, this paper brings forward the method of eliminating zero-sequence component and puts it into three-phase four-wire of arc furnace system. Furthermore, the paper builds mathematic model and simulates it. The simulation results show that this method can detect...
In future wireless communication networks, layered modulation is a promising technique to provide reliable and efficient broadcast service for users with diversified wireless fading channel. However, there is a great challenge to effectively determine the modulation parameters in applications. To solve this problem, a Modulation Solution Selection (LMSS) algorithm is proposed in this work. Firstly,...
The complexity of blast furnace iron-making process control can be interpreted from two aspects. From the aspect of technique, it is composed of status diagnosis of blast furnace, predictive control of silicon content and an organic combination of them. From the aspect of control theory, it is no longer the traditional direct feedback control, but intelligent control based on inference and optimization...
Joint Probabilistic Data Association has been proven to be effective in tracking multiple targets from measurements amidst clutter and missed detections. But the traditional Joint Probabilistic Data Association algorithm will cause track coalescence when the targets are parallel neighboring or small-angle crossing. To avoid track coalescence, a modified Joint Probabilistic Data Association algorithm...
Design of a wireless sensor network based on Zigbee/IEEE802.15.4 is issued. The network is used to monitor the safe state of intelligent community and give alarm. Each sensor node in the system is composed of sensors and an integrated chip CC2430. The GPRS technology is used to complete data exchanging between remote monitoring center and wireless sensor subnets. This system is an application in intelligent...
Propose a rapid sliding mode synchronization method with non-singular terminal for unmatched uncertainties of chaos systems. Through the design of switching surface of sliding mode and corresponding nonsingular terminal sliding mode control strategy, making the two chaotic systems with unmatched uncertainties can be synchronized in finite time. Simulation results show that the proposed method reduce...
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