embedded fuzzy logic controllers in electric railway transportation systems

... engine, fuzzy logic principles are used to combine fuzzy IF–THEN rules from the fuzzy rule base into a mapping from fuzzy input sets in X1 ×· · ·×Xp to fuzzy output sets in Y Each rule is interpreted ... inputs into type-1 fuzzy input sets Rules in the knowledge base are then fired at varying degrees by the fuzzy input sets The inference engine maps fuzzy sets into type-1 fuzzy output sets using ... reasoning of fuzzy logic systems into neural networks 1.3 Extension to Type-1 Fuzzy Logic Theory In spite of the many applications utilizing type-1 fuzzy controllers, type-1 fuzzy set and fuzzy logic...

Ngày tải lên: 11/09/2015, 16:04

... Fuzzy logic fundamentals Historical review Fuzzy sets and fuzzy logic Types of membership functions Linguistic variables Fuzzy logic operators Fuzzy control systems Fuzzy ... be reduced by increasing the number of sampling points in each cycle of the switching signal This can be done either by maintaining the frequency modulation ratio mf and increasing the total ... number of sampling points in the power cycle or by maintaining the number of sampling points in one power cycle and reducing mf Carrier waveform Power waveform 10 n – ε1 +ε1 PWM switching waveform...

Ngày tải lên: 18/04/2014, 12:29

... those beginning to explore the possibilities of fuzzy logic In addition to the material presented at the embedded systems conference I have added additional chapters Clear thinking on fuzzy linguistics ... important and may in fact be the over riding reason for the use of fuzzy logic Byte Craft Limited i Fuzzy Logic in Embedded Microcomputers and Control Systems Appendix The appendix contains, in addition ... Systems At the 1992 Embedded Systems Conference in Santa Clara, the genie was finally let out of the bottle, and fuzzy logic came into its own with wide interest Jim Sibigtroth's article in Embedded...

Ngày tải lên: 08/03/2016, 11:34

... neural nets, and you get NeuroFuzzy Training Fuzzy Logic Systems with NeuroFuzzy Many alternative ways of integrating neural nets and fuzzy logic have been proposed in the scientific literature ... of the sample data set used for training Figure 17 shows the NeuroFuzzy Module during training [8] [9] [10] Figure 17: fuzzyTECH NeuroFuzzy Module training Within two days of implementation work ... "Fuzzy Logic and NeuroFuzzy Applications Explained", ISBN 0-1336-8465-2, Prentice Hall 1995 Yager, R., "Implementing fuzzy logic controllers using a neural network framework", Fuzzy Sets and Systems...

Ngày tải lên: 13/12/2013, 01:15

... neural nets, and you get NeuroFuzzy Training Fuzzy Logic Systems with NeuroFuzzy Many alternative ways of integrating neural nets and fuzzy logic have been proposed in the scientific literature ... of the sample data set used for training Figure 17 shows the NeuroFuzzy Module during training [8] [9] [10] Figure 17: fuzzyTECH NeuroFuzzy Module training Within two days of implementation work ... "Fuzzy Logic and NeuroFuzzy Applications Explained", ISBN 0-1336-8465-2, Prentice Hall 1995 Yager, R., "Implementing fuzzy logic controllers using a neural network framework", Fuzzy Sets and Systems...

Ngày tải lên: 22/12/2013, 10:15

... a linear decrease in norepinephrine infusion rate (b) Norepinephrine infusion rate and MAP over time for a representative patient included in the fuzzy group The change in norepinephrine infusion ... control system based on fuzzy logic for norepinephrine infusion was associated with reduction in the duration of norepinephrine weaning in patients with septic shock • Fuzzy logic algorithm is a ... fuzzy logic algorithm results in the use of much lower norepinephrine doses during weaning in patients with septic shock and leads to a decrease in the duration of weaning duration By providing...

Ngày tải lên: 13/08/2014, 11:23

... effect of uncertainties, especially in the face of complex uncertainties In order to improve the ability of fuzzy logic in handling complex uncertainties, type-2 fuzzy logic was introduced While ... (n) for IC to IC 167 Chapter Introduction 1.1 Fuzzy logic Uncertainty exists in various aspects of life, resulting in an interesting world In the real world, uncertainties may arise from a variety ... uncertainties Among them, fuzzy logic introduced by Lotfi Zadeh has been shown to be an effective methodology for handling uncertainties In the framework of fuzzy logic, the concept of fuzzy set was introduced...

Ngày tải lên: 09/09/2015, 18:49

... 3: Áp dụng fuzzy logic điều khiển SVC CHƯƠNG ÁP DỤNG FUZZY LOGIC ĐIỀU KHIỂN SVC 3.1 Fuzzy Logic Những năm gần chứng kiến phát triển nhanh chóng số lượng ứng dụng nhiều lĩnh vực khác fuzzy Khái ... khác fuzzy Khái niệm chung Fuzzy logic có hai cách hiểu Theo nghĩa hẹp, fuzzy logic mở rộng hệ thống logic nhiều giá trị Nhưng theo nghĩa rộng sử dụng ngày hôm nay, fuzzy logic gần đồng nghĩa với ... dụng fuzzy logic điều khiển SVC  Khối compensation xác định Qcomp 3.3.2 Mô hình SVC sử dụng fuzzy logic Khối SVC _fuzzy có cấu tạo tương tự khối SVC nguyên thủy Matlab 3.3.2.1 Input – Output  Input...

Ngày tải lên: 07/11/2012, 10:55

... (Headstock RETRACT endpoint) LS0 (Machining (Machining END) START) LS2 LS1 (Carriage ADVANCE endpoint) LS-F (Carriage RETRACT endpoint) LS-R Interlock such as emergency stop step Carring ADVANCE oM0 ... the machine, and a sequence program (circuit/list) is used to describe the machine control including individual interlock Clamp SOL1 SOL2 LS-U Clamp UP endpoint MT1-F Clamp DOWN endpoint MT1-B ... problems involving industrial property rights which may occur as a result of using the contents noted in this manual © 2000 MITSUBISHI ELECTRIC CORPORATION A-2 A-2 INTRODUCTION Thank you for purchasing...

Ngày tải lên: 15/10/2013, 16:28

... PRINTING HISTORY • First Edition: Printed in June of 2000 Plain-ASCII illustrations for universal computer readability • Second Edition: Printed in September of 2000 Illustrations reworked in ... system used internally in modern electronic computing devices, and learning any different system of notation requires some re-examination of deeply ingrained assumptions First, we have to distinguish ... -Intuitively understood - Requires training to interpret Infinitely divisible Discrete CHAPTER NUMERATION SYSTEMS Prone to errors of precision Absolute precision Interpretation...

Ngày tải lên: 09/12/2013, 21:15

... 5.7 Fuzzy- Based Part Dispatching Rules in FMSs This section explains a fuzzy real-time routing selection and an intelligent decision-making tool using fuzzy expert systems for machine loading in ... Simulation of scheduling rules in a flexible manufacturing system using fuzzy logic, IEA-AIE96 Ninth International Conference on Industrial and Engineering Application of Artificial Intelligence and ... routings A routing is selected such that the following goals are achieved: • Minimizing number of blocked machines • Minimizing total processing time • Minimizing number of processing steps Four...

Ngày tải lên: 17/12/2013, 06:15

... of combining the statuses, for which "1" has been entered in the value table This is done in blocks whilst observing the following rules: The combining statuses in the KV diagram must be in the ... B-42 Chapter The screening of the signal emitted by the sensor is critical in industrial automation In industry, electrical lines are generally loaded heavily due to inductive interference voltages, ... negative switching connections when connecting sensors to PLC inputs In other words, differentiation is made between inputs representing a current sink or a current source In Germany for instance positive...

Ngày tải lên: 22/12/2013, 18:16

... Step 1: Convert the V memory locations to decimal and find the range.  1215‐1200 in octal is 15 or in decimal, 13.  1200 octal = 640 in decimal   1400 octal = 768 in decimal  Step 2: Enter these numbers into the serial modbus control window.  ... Address ModBus(Var)  is the decimal equivalent of the V memory location in the PLC. Automation direct  PLCs automatically calculate the offsets for the input and output holding registers. Therefore, writing or  reading from a register is as simple as placing the desired register  (in decimal) in this column.   ... Step 1: Convert the V memory locations to decimal using the Window’s calculator.  400 octal = 256 in decimal     600 octal = 384 in decimal  Step 2: Enter those values into the serial modbus control window.     Step 3: Press Apply and your changes will be updated.  ...

Ngày tải lên: 28/12/2013, 22:20

... the following relation is obtained for the AC side: The PWM technique has been introduced in rectifiers control in order to obtain almost sinusoidal input currents and unity power factor in each ... imposed sinusoidal input currents and constant output voltage Let's consider the AC side inductive elements (i.e the transformer inductance or other inductance included to make the system working ... on the fuzzy logic is proposed Such a controller is able to manage the energy exchange by taking into account the actual evolution of the electric quantities and to impose sinusoidal input currents,...

Ngày tải lên: 03/01/2014, 19:44

... (Fig II), in fuzzification block FI input crisp values (real numbers) are converted into linguistic variables (fuzzy numbers) Rules Base describes interactions between input and output linguistic ... Converters”, IEEE Trans on Ind Applications, Vol 33, No 2, 1997, pp 518-524 1161.C.C Lee Fuzzy Logic in Control Systems: Fuzzy Logic Controller - Part I, I1 ”, ”, IEEE Trans on Systems and Cybernetics, ... the ZOH introduces half a sampling period delay that is exactly how much should be considered to take into account the modulator influence In Fig IO the current control loop in Z-domain is reported...

Ngày tải lên: 03/01/2014, 19:46

... string date, int chiso) string sql = @"insert into stock values('" + ma + "','" + gia + "','" + date + "','" + chiso + "')"; Kết thu được: thêm hàng vào sở liệu String getInf (string mack, int ... hiểu logic mờ (Fuzzy logic) , logic mềm dẻo logic thông thường (logic Boolean) thích hợp toán phức tạp (ví dụ toán coi nóng, lạnh, ấm logic Boolean không đưa kết luận xác được) Từ nguyên tắc fuzzy ... ví dụ khác để minh họa cho mềm dẻo Logic mờ việc xác định lứa tuổi: Boolean Logic Fuzzy Logic Hình 6: Sự khác hai loại Logic việc xác định lứa tuổi Nhìn hình vẽ trên, Boolean Logic (tương ứng...

Ngày tải lên: 15/02/2014, 15:10

Ngày tải lên: 20/03/2014, 20:20

... modern dielectric theory and engineering, including the lastest analysis and modeling techniques As the editor of the Power Engineering Series, I am proud to include Dielectrics in Electric Fields ... of electrical engineering Dielectric materials are a key element of electric power engineering, one of the most challenging aspects of improving reliability and economy of materials For an industry ... maintenance Polymer scientists are interested in understanding the role of long chain molecules in varied applications ranging from heat resistant dielectrics to selfrepairing plastics The intensity...

Ngày tải lên: 21/03/2014, 12:08

... sphere of radius R and a dielectric constant 82 The sphere is situated in a dielectric medium extending to infinity and having a dielectric constant of S] and an external electric field is applied ... reduces to a form given by (1.3) 4.3 FIELD IN A DIELECTRIC DUE TO A CONDUCTING INCLUSION When a conducting sphere is embedded in a dielectric and an electric field E is applied the field outside ... substituting equation (1.25) in (1.24) The method of finding the solution of Laplace's equation in some typical examples is shown in the following sections TM Copyright n 2003 by Marcel Dekker, Inc...

Ngày tải lên: 21/03/2014, 12:08

... shown in the following section 2.3 THE INTERNAL FIELD To calculate the internal field we imagine a small spherical cavity at the point where the internal field is required The result we obtain varies ... local ordering in the dielectric23 It has the value of unity if we imagine a molecule to be held fixed, and the average moment of a spherical region of finite radius within an infinite specimen ... gives rise to an electric field in a direction perpendicular to E and this component is ' PcosQsmOdA dE sin - - Substituting expression (2.17) in this expression and integrating we get o ~ Hence...

Ngày tải lên: 21/03/2014, 12:08