khairy_abdelsaid

خيري فتحي عبد السيد سيد

استاذ مساعد -

كلية الهندسة

العنوان: كلية الهندسة جامعة سوهاج

10

إعجاب
10 7 7 15 1 4 229 233
104

أضيف حديثا
  • المقررات الدراسية 10
  • ملحقات المقررات الدراسية 7
  • واجبات المقررات الدراسية 7
  • المنشورات و المؤلفات 15
  • ساعات مكتبية 1
  • الاعلانات 4
  • عدد الملفات المرفوعه 7
  • كل التنزيلات 19

New High Voltage Gain Dual-boost DCDC Converter for Photovoltaic Power Systems

2012 | الكلمات المفتاحية Dual Boost, DC-DC converter, PV system, High voltage gain,
New High Voltage Gain Dual-boost DCDC Converter for Photovoltaic Power Systems
This article presents a new circuit topology of a high-voltage step-up boost DC-DC converter for photovoltaic power systems. The converter boosts the low-output voltage of the solar cell to the required voltage for the load. The proposed circuit has various advantages compared to the conventional boost converters, namely a higher boost rate with low duty cycle, lower voltage stress on ... إقراء المزيد

New high-frequency linked half-bridge softswitching PWM DC–DC converter with input DC rail side active edge resonant snubbers

2010 | الكلمات المفتاحية Soft-Switching, DC-DC converter, High frequency;, arc welding,
New high-frequency linked half-bridge softswitching PWM DC–DC converter with input DC rail side active edge resonant snubbers
This study presents a new circuit topology of the active edge resonant snubber-assisted half-bridge softswitching PWM inverter-type DC–DC high-power converter for DC bus feeding power plants. The proposed DC–DC power converter is composed of a typical voltage source-fed half-bridge high-frequency PWM inverter with a high-frequency planar transformer link in addition to input DC busline side power semi-conductor switching devices for ... إقراء المزيد

Boost-Half Bridge Single Power Stage PWM DC-DC Converter for PEM-Fuel Cell Stack

2008 | الكلمات المفتاحية DC-DC converter, Boost half-bridge, High frequency transformer, PEM Fuel cell, Voltage doubler-rectifier,
Boost-Half Bridge Single Power Stage PWM DC-DC Converter for PEM-Fuel Cell Stack
This paper presents the design of 1 kW prototype high frequency link boost half bridge inverter-fed DC-DC power converter with bridge voltage-doublers suitable for small scale PEM fuel cell system and its associated control scheme. The operation principle of this converter is described using fuel cell modeling and some operating waveforms and the switching mode equivalent circuits based on simulation ... إقراء المزيد

A Novel Prototype of Duty Cycle Controlled Soft-Switching Half-Bridge DC-DC Converter with Input DC Rail Active Quasi Resonant Snubbers Assisted by High Frequency Planar Transformer

2007 | الكلمات المفتاحية arc welding, Soft-Switching, DC-DC converter, high power,
A Novel Prototype of Duty Cycle Controlled Soft-Switching Half-Bridge DC-DC Converter with Input DC Rail Active Quasi Resonant Snubbers Assisted by High Frequency Planar Transformer
This paper presents a new circuit topology of active edge resonant snubbers assisted half-bridge soft switching PWM inverter type DC-DC high power converter for DC bus feeding power plants. The proposed DC-DC power converter is composed of a typical voltage source-fed half-bridge high frequency PWM inverter with a high frequency planar transformer link in addition to input DC busline side ... إقراء المزيد

Supervisory control of a resilient DC microgrid for commercial buildings

| الكلمات المفتاحية smartgrid;, distributed energy resources, DC microgrids, supervisory control,
Supervisory control of a resilient DC microgrid for commercial buildings
This paper presents a supervisory controller for DC microgrid consists of a solar photovoltaic (PV) system, fuel cell, a supercapacitor and battery bank. The DC microgrid is proposed for more efficient resilient electricity distribution in a commercial building. The operation strategy of energy storage systems (ESS) is proposed to solve the power changes from PV array and building loads fluctuations ... إقراء المزيد