Electrical energy, as a major source energy of production and life, plays an important role in national economic development. In recent years, the demand of electrical energy is increasing, the shortage of electrical ...
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ISBN:
(纸本)9781457705472;9781457705465
Electrical energy, as a major source energy of production and life, plays an important role in national economic development. In recent years, the demand of electrical energy is increasing, the shortage of electrical energy becomes serious. In order to alleviate this problem, people has proposed the idea of load identification. Load identification system can determine the type of the load, provide the detailed electricity consumption and running state of equipments for supply-side and user. This paper gives a review of monitoring and identification methods for electrical loads, compares their applicability and accuracy on different loads, and updates direction for future research. And then, we propose fuzzy algorithm to implement the load identification of residential load. One of the key advantages of the fuzzy method is its capability to identify the major residential loads accurately. Actual trial data and results are presented in the paper to demonstrate the performance of the identification method.
This paper develops a smart device to indicate weather conditions. This device is composed of four parts: a sensing module, a wireless communication module, a computing module and a display module. The sensing module ...
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ISBN:
(纸本)9781424415304;1424415306
This paper develops a smart device to indicate weather conditions. This device is composed of four parts: a sensing module, a wireless communication module, a computing module and a display module. The sensing module collects weather information by sensors. The computing module employs the fuzzy algorithm to calculate the comfort level. The display module presents the comfort level via music and color. Results of simulations and experiments demonstrate the feasibility of the algorithm and the effectiveness of the system.
This paper analyzes the inapplicability of the traditional APF in the dynamic environment and the existence of local minimum. In this paper, a new potential field function is proposed. Combined with the fuzzy algorith...
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This paper analyzes the inapplicability of the traditional APF in the dynamic environment and the existence of local minimum. In this paper, a new potential field function is proposed. Combined with the fuzzy algorithm, the ratio of the absolute value of the difference between the gravitational force and the repulsive force of the UAV to the resultant force and their angle difference are taken as two fuzzy inputs. With the help of the fuzzy rules, the fuzzy output force is calculated to break the local minimum *** the dynamic environment, the relative velocity repulsion potential field between UAV and dynamic obstacles is introduced to solve the problem of dynamic obstacle avoidance. The experimental simulation results show that the obstacle avoidance track drawn by the improved APF regulation in this paper is smoother and the obstacle avoidance track correlation data is better.
In this paper,the author analyses and presents that the key of the further development of the applied technology on Intemet is parallel *** distributed service system which is constructed in the form of client/server,...
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In this paper,the author analyses and presents that the key of the further development of the applied technology on Intemet is parallel *** distributed service system which is constructed in the form of client/server,when many users all need to occupy certain resource and nearly send out request messages at the same time,in order to improve the efficiency of the system successively,the service of host may arrange for the handling order according to a certain principle,that is the Priority Assignment Strategy for Multiple Priority Queues based on fuzzy algorithm.
In this paper an adaptive fuzzy routing algorithm is proposed for Network-on-Chips. The cost of each link is decided based on the current network, and the optimal path detection is done using a fuzzy controller by con...
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ISBN:
(纸本)9781467329811
In this paper an adaptive fuzzy routing algorithm is proposed for Network-on-Chips. The cost of each link is decided based on the current network, and the optimal path detection is done using a fuzzy controller by considering the traffic of routes as well as the power. The fuzzy controller output is such that the lowest cost link will be selected as the optimal path. Simulation results show the improvement in power and traffic network compared with xy routing.
In recent years, university student's entrepreneurship has been in a prosperous rise. Hence, there're more and more important functions in studying university student's entrepreneurial intention. With su f...
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In recent years, university student's entrepreneurship has been in a prosperous rise. Hence, there're more and more important functions in studying university student's entrepreneurial intention. With su fficient understanding of university student's entrepreneurial intention, we are able to provide timely and appropriate guidance and assistance which can have great reference value on university students, universities, and state policies. At present, qualitative research is the focus of related studies at home and abroad. The development of quantitative research is slow. In order to solve the influence and functions that influence factors have on university student's entrepreneurial intention, this thesis established mathematical models according to the relations among those influence f actors. However, there's certain complexity in solving the influence factors of university student's entrepreneurial intention. In many cases, a single algorithm cannot well solve the problems of evalu ation accuracy and fault-tolerant capability. By optimizing fuzzy comprehensive evaluation algorithm, this thesis introduced neural network into complex models and had training on the parameters of neural network in the introduced ant colony algorithm;thus obtained university student's entrepreneurial intenti on study model based on influence factor and a new thought on solution. With organic combination of algorithms, this thesis has innovated and improved the existing algorithms and their applying reliability and accuracy. Quantitative analysis and explanatio n about the influence factors in study of university student's entrepreneurial intention will be shown in this thesis.
Maximum power point tracking CMPPT) is the core technique in photovoltaic power generaton system to improve energy utilization. Major research direciotns of MPPT are focused on model pattern and input-output param...
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Maximum power point tracking CMPPT) is the core technique in photovoltaic power generaton system to improve energy utilization. Major research direciotns of MPPT are focused on model pattern and input-output paramerters pattern. This paper introduces the superiority and inferiority for MPPT in two kind of patterns. Morever, a new MPPT method in model pattern base on ant colony optimization algorithm(ACO) and an optimized fuzzy tracking method in input-output paramerters pattern are also proposed, which aer proved to tracking the maximum power point (MPP) effectively from experimental results. Finally, combined with advantages of the above tracking methods, a set of integral tracking strategy is put forward to accurately and timely track MPP under different conditions.
Aiming at the strongly nonlinear behavior of Buck converter, the state space average method is used to model Buck converter, and the small signal model and open-loop transfer function are obtained. According to the op...
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Aiming at the strongly nonlinear behavior of Buck converter, the state space average method is used to model Buck converter, and the small signal model and open-loop transfer function are obtained. According to the open-loop transfer function, PID controller is designed. For the shortcoming of the traditional PID controller which cannot change the control parameters dynamically according to the change of the system's operating point, the fuzzy algorithm is introduced into the PID controller. To model PID controller and fuzzy PID controller, MATLAB/Simulink is used. It can be shown from simulation results that fuzzy PID control has better dynamic control performance and can be used in other converters.
The flight performance of four-rotor unmanned helicopter depends largely on the flight control system, the flight control system was mainly consisted of attitude algorithm and controller. During design time, firstly, ...
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The flight performance of four-rotor unmanned helicopter depends largely on the flight control system, the flight control system was mainly consisted of attitude algorithm and controller. During design time, firstly, in order to real-time update for the quaternion, we fused the data of gyroscope、accelerometer and magnetometer. And we obtained the attitude angle through quaternion to Euler angle conversion. Then, we calculated the output of throttle by fuzzy algorithm, which was used to control the attitude. And control algorithm was used and optimized by the method of the joint simulation. Finally, four-rotor unmanned helicopter was connected to PC with bluetooth and we obtained the air data of UAV form PC. The data display that the fuzzy controller can keep the stability of flying.
This We present a new approach for robust walking of a biped robot, on uneven terrain, A biped robot necessitates achieving posture stabilization since it has basic problems such as structural instability. In this pap...
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ISBN:
(纸本)9781467322478
This We present a new approach for robust walking of a biped robot, on uneven terrain, A biped robot necessitates achieving posture stabilization since it has basic problems such as structural instability. In this paper, a robust control algorithm for stable walking is proposed using the ground reaction forces, which are measured using force sensors during walking, and the environmental conditions are estimated from these situation. From this information the robot selects the proper motion and overcomes ground irregularities effectively. In order to generate the proper angel of the joint. The performance of the proposed algorithm is verified by simulation and experiments on a 20-DOFs humanoid robot.
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