solar electric power supply with batteries

Chapter 11: Solar Electric Power Supply with Batteries doc

Ngày tải lên : 05/07/2014, 07:20

... DIMENSIONING A SOLAR ELECTRIC SYSTEM Preconditions The basic precondition is that the mean solar electric power supply must be at least equal to the mean power demand Whenever demand and supply are ... ratings for solar electric power supply systems Power rating of the system Typical consumer Examples mW Appliances with integrated circuits and minimized energy consumption Solar powered watches ... discharges 11.4 11.4.1 ASPECTS FOR THE CHOICE OF THE BATTERY Power Rating Table 11.1 lists the power ratings of different solar electric power supply systems This listing also shows the typical load...

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Tài liệu tiếng anh Điện tử công suất mạch MERS Power supply for pulsed magnets with magnetic energy recovery current switch

Ngày tải lên : 15/10/2013, 16:11

... TURN-OFF SWITCHING LOSSES III HIGH REPETITION PULSED POWER SUPPLY A Pulsed Current in High Repetition This switch can be applied to a power supply which supplies high-speed and high-repetition ... of a magnetic recovery switch to the pulsed power supply was proposed This switch can flow pulsed current in high repetition, without being concerned with inductance of load By absorbing and recovering ... November 26, 2008 at 00:02 from IEEE Xplore Restrictions apply TAKAKU et al.: POWER SUPPLY FOR PULSED MAGNETS WITH MAGNETIC ENERGY RECOVERY CURRENT SWITCH 1797 TABLE II PARAMETERS OF MAGNETIC...

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Modern Optimization Techniques with Applications in Electric Power Systems pdf

Ngày tải lên : 30/03/2014, 07:20

... Abdel-Aal Hassan Mantawy Modern Optimization Techniques with Applications in Electric Power Systems Soliman Abdel-Hady Soliman Department of Electrical Power and Machines Misr University for Science and ... to solve the optimal power flow problem Chapter 6, “Long-Term Operation of Hydroelectric Power Systems,” formulates the problem of long-term operation of a multireservoir power system connected ... a fine job without using fuzzy logic However, if you take the time to become familiar with fuzzy logic, you’ll see it can be a very powerful tool for dealing quickly and efficiently with imprecision...

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Chapter 7: Batteries for Stationary Power Supply ppsx

Ngày tải lên : 05/07/2014, 06:20

... and nickel/cadmium batteries Equipment for emergency power supply of technical facilities and processes Today stationary batteries are mostly connected in parallel with the DC power equipment and ... diesel starting up to a month in solar plants In some special cases there are further requirements, e.g for UPS devices the connected power supply requires constant power That means when the battery ... There are developments of nickel/metal hydride batteries with very high power density for application in hybrid road vehicles Valve-regulated lead-acid batteries already have displaced the vented...

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An action research on teaching grammar in the light of the eclectic approach with first-year non-English major students at Electric Power University

Ngày tải lên : 19/03/2015, 10:28

... ACTION RESEARCH ON TEACHING GRAMMAR IN THE LIGHT OF THE ECLECTIC APPROACH WITH FIRST-YEAR NON-ENGLISH MAJOR STUDENTS AT ELECTRIC POWER UNIVERSITY (NGHIÊN CỨU VIỆC DẠY NGỮ PHÁP THEO ĐƯỜNG HƯỚNG CHIẾT ... universities, English has become a compulsory subject Electric Power University (EPU), where I have been working for years, is not an exception With years of experience in teaching English for the ... tongue, with little active use of the target language 7  Much vocabulary is taught in the form of list of isolated words with equivalent in mother tongue  Teachers explain grammar rules, with...

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AN0783 ±5v power supply operation with TC7106A7107A

Ngày tải lên : 11/01/2016, 11:39

... FIGURE 2: DS00783B-page Positive Power Supply Operation with Negative Bias Generation  2003 Microchip Technology Inc AN783 Unregulated Supply Input +5V System Power +5V Voltage Regulator +5V ... 10 µF + TC7660 + – 10 µF FIGURE 3: Improved Thermal Stability of TC7107 SUMMARY ±5V power supply operation with the TC7106A/7106 and TC7107A/7107 3-1/2 digit, analog-to-digital (ADC) converters ... microPort, Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, PICC, PICkit, PICDEM, PICDEM.net, PowerCal, PowerInfo, PowerTool, rfPIC, Select Mode, SmartSensor, SmartShunt, SmartTel and Total Endurance...

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AN1086 switching power supply design with the PIC16F785

Ngày tải lên : 11/01/2016, 16:38

... available as the PIC16HV785 with an on-chip 5V shunt regulator for powering the microcontroller and associated circuitry So, the power conversion section of the power supply design is comprised ... MPLAB Certified logo, MPLIB, MPLINK, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total ... 0)) state2 = SHUTDN; break; case FAULT: POWERGOOD = 0; FAULTLED = 1; if ((!ENABLE) & (monitor[3] < lowSupply)) state2 = SHUTDN; break; case ERROR: default: POWERGOOD = 1; FAULTLED = 1; if (monitor[0]...

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Power Supply Units Guide.

Ngày tải lên : 01/11/2012, 16:38

... trực tuyến để tìm số cần thiết ví dụ như: - http://www.jscustompcs.com /power_ supply/ - http://www.mymp3car.com/MP3Car/PSUpower.asp Trong thực thế, Khi đem hệ thống thuộc dạng mạnh đưa thử nghiệm ... thiết bị với tổng công suất khoảng 430w vào nguồn có số Continuous Power 400w, chúng hoạt động khoảng thời gian ngắn mức Peak Power nguồn đạt 430w sau khoảng thời gian định, linh kiện nguồn bị ... ±10% -10.8V -13.2V +3.3VDC ±5% +3.14V +3.47V +5V SB ±5% +4.75V +5.25V 12 Chế độ Soft Power tín hiệu chờ 5v: Soft Power cách thức mà nguồn máy tính bật lên tắt Thay sử dụng công tắc cứng chuẩn AT...

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UPS (Uninterruptible Power Supply)

Ngày tải lên : 27/04/2013, 11:36

... máy tính Bước Một lý cho việc PSU không hoạt động bạn chưa cắm đầu power switch Đầu power switch, thường đóng dấu PW PW_ON hay POWER SW, từ phía trước thùng máy đến mainboard Tuy nhiên, trường ... thử tắt máy khởi động lại Nếu máy khởi động lần thử thứ hai thứ ba tín hiệu Power_ OK (hoặc Power_ Good) Khi có tín hiệu Power_ OK, mainboard hiểu PSU ổn định, không mainboard không khởi động để tự ... cắm dễ bị bung ra) Vị trí cắm power switch in mainboard, bạn tham khảo tài liệu kèm với mainboard không tìm thấy chân cắm Bước Bạn khởi động cách chập hai chân nút power switch mainboard tua-vít,...

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Electronics - Digital Control of Switching Power Supply

Ngày tải lên : 27/10/2013, 16:15

... explored with low cost digital controllers: TMS320C2407 and ST52x420 Strict harmonic limit such as IEC 1000-3 are here to stay To meet the limits and come up with growing ac/dc power supply markets, ... Analog and Digital Control Traditionally, the implementation of switching power supply has been accomplished by using analog power factor correction (PFC) as shown in Fig [3] Analog PFC IC's which ... variations, and fewer part counts [2] It also reduces the size of the power supply by containing the complexity of control system within the software Therefore, since digital control is much flexible...

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Tài liệu Power Supply Block Diagram ppt

Ngày tải lên : 13/12/2013, 23:15

... available with 5, 6, 8, 12, 15, 18, or 24 V output 12 15 18 Max output current with heat sink is A Built-in thermal shutdown protection 3-V dropout voltage; max input of 37 V Regulators with lower ... Mohawk College 48 Basic Push-Pull Power Converter Push- Operates as a class D power amplifier Output rectifier converts the square-wave to dc Each transistor must withstand 2xVin pl s sq are a e ... operate as a high-voltage regulator with output high voltage from 7.15 V to about 37 V, or as a low-voltage regulator from V to 7.15 V Max output current with heat sink is 150 mA Dropout voltage...

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Tài liệu The Computer Case and Power Supply pptx

Ngày tải lên : 21/12/2013, 19:15

... the local power requirements when selecting the voltage for the power supply Step Power supplies are rated by wattage, which is usually between 250 and 300 watts What is the power supply rating ... mini DIN _ USB (Make sure it matches the connector on the Motherboard) Power Supply AT ATX _ Other _ Power Supply Wattage _ Step Examine the screws that will be used for the case ... - Lab 3.3.4 Copyright  2002, Cisco Systems, Inc Step Most computer cases come complete with a power supply However, not all cases are built for the United States market and therefore may not...

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iec 60502-1 power cables with extruded insulation and their accessories for rated voltages

Ngày tải lên : 25/12/2013, 11:08

... publication has been drafted in accordance with the ISO/IEC Directives, Part IEC 60502 consists of the following parts, under the general title Power cables with extruded insulation and their accessories ... contact with earth or an earth conductor is disconnected from the system within min; Category B: this category comprises those systems which, under fault conditions, are operated for a short time with ... an inner covering is applied, its thickness need not comply with 7.1.3 or 7.1.4 7.3 Cables with rated voltage 1,8/3 (3,6) kV Cables with rated voltage 1,8/3 (3,6) kV shall have a metallic layer...

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Handbook of electric power calculations 3rd edition

Ngày tải lên : 30/12/2013, 22:13

... of Electric Power 8.1 Section Overhead Transmission Lines and Underground Cables 9.1 Section 10 Electric- Power Networks 10.1 Section 11 Load-Flow Analysis in Power Systems 11.1 Section 12 Power- Systems ... upon the square of the load current, a power company ﬁnds it more economical to supply 10 A at a power factor of 100 percent than to supply 14.29 A at a power factor of 70 percent A mathematical ... a Three-Phase Wattmeter Power Measurement on a Four-Wire Line Reactive -Power Measurement Power- Factor Measurement Electric Peak -Power Demand Metering ...

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Understanding electric power systems

Ngày tải lên : 31/12/2013, 21:57

... manipulating electricity prices, have all increased concern and scrutiny of the electric power industry ELECTRIC POWER SYSTEM This chapter gives an overview of the electric power system.The electric power ... interconnected in the provision of electric power It provides the reader with an understanding of the equipment involved in providing electric power, the functioning of the electric power system, the factors ... Crisis / 10 Electric Power System 13 Customers / 14 Sources of the Electric Energy—Generation / 15 Delivery System / 17 Interconnections / 19 Grid / 21 Basic Electric Power Concepts 23 Electric...

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Uncertainty in the electric power industry

Ngày tải lên : 31/12/2013, 22:20

... unhedged power plant portfolios] Table 7-7 Earnings at risk - delivery risk for power plant portfolios with various hedges Table 7-8 Earnings at risk - delivery risks for power plant portfolios with ... option model of power plant operation 18 32 58 59 61 61 64 69 70 71 72 117 xx Table 6-2 Power plants without cogeneration considered for application case Table 6-3 Cogeneration power plants considered ... model within the integrated model Table 4-5 Definition of regions in the fundamental model within the integrated model Table 4-6 Definition of power plant types in the fundamental model within...

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transient analysis of electric power circuits handbook

Ngày tải lên : 31/12/2013, 22:30

... infinite power, which is associated with inductors/capacitors As previously mentioned, power is a derivative of energy and any abrupt change in energy will result in an infinite power Since infinite power ... address, nor concentrate on, topics dealing with transient analysis of electrical power systems Many of the fundamental facts concerning the transient behavior of electric circuits were well explored ... circuits were well explored by Steinmetz and other early pioneers of electrical power engineering Among others, Electrical T ransients in Power Systems by Allan Greenwood is worth mentioning Even though...

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Single phase uninterruptible power supply based on z source inverter

Ngày tải lên : 03/01/2014, 19:12

... UNINTERRUPTIBLE POWER SUPPLY BASED ON Z-SOURCE INVERTER 2999 III C ONTROL P RINCIPLE OF THE P ROPOSED UPS W ITH THE Z-S OURCE I NVERTER Fig shows the dual-loop control in the proposed UPS with the Z-source ... al.: SINGLE-PHASE UNINTERRUPTIBLE POWER SUPPLY BASED ON Z-SOURCE INVERTER 3001 TABLE IV STEP RESPONSE OF THE OUTER LOOP TABLE V SPECIFICATIONS OF A 3-KW UPS WITH THE Z-SOURCE INVERTER than the ... voltage at 50% voltage sag of the battery bank with high efﬁciency, low harmonics, fast response, ZHOU et al.: SINGLE-PHASE UNINTERRUPTIBLE POWER SUPPLY BASED ON Z-SOURCE INVERTER 3003 Fig 12...

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A reliability data base for performance and predictive assessment of electric power systems

Ngày tải lên : 03/01/2014, 19:36

... specifically associated with the distribution of electric power Degree an incident with a Severity from - System Minutes an incident with a Severity from - 9 System Minutes an incident with a Severity ... discussion in the CEA Power System Reliability Subsection ELECTRIC POWER SYSTEM RELIABILITY ASSESSMENT (EPSRA) The basic structure of EPSRA is shown in Figure Electric Power System Reliability ... Hierarchical Level I All Canadian utilities are concerned with security assessment within their own system and in the interconnected conficjuration within which their own system resides These assessments...

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