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Register a new userDesigning DC Buck-Boost Converter With steady Output Voltage Using Fuzzy Logic
تصميم مبدّلة جهد مستمر رافعة خافضة ذات خرج ثابت باستخدام المنطق الضّبابي
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Tishreen University ورقة بحثية
Publication date
2018
fields
Electrical Power Engineering
and research's language is
العربية
Authors
دريد عجيب( باحث )
Created by
Shamra Editor
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يقدّم هذا البحث نموذجاً لتّصميم مبدّلة رافعة خافضة قادرة على التّعامل مع تغيرات الجهد الحاصلة في وحدات الشّحن للمدّخرات، و التّي تظهر نتيجة لاستخدام محوّلات خافضة للجهد بنسبة ثابتة غير قادرة على التّعامل مع هبوطات الجهد الحاصلة بالشّبكة الكهربائيّة أو بخرج اللوح الكهروضوئي، و قد صمّمت باستخدام المنطق الضّبابي من أجل التّحكّم بعرض نبضة التّحكّم للمبدّلة من أجل الحصول على الخرج المطلوب، و تمّ تحليل النّموذج و اختباره ضمن بيئة الماتلاب من أجل توضيح النّتائج التّي قدّمها هذا النّموذج.
This paper offer a designed module for buck-boost DC-DC converter, able to solve unsteady charging voltage problem, due to constant decreasing scale of transformers and grid or solar panel voltage drop, this module has been designed using fuzzy logic in PWM control and simulated in matlab and all test and its results illustrated the suitable figure.
References used
Rong-Jong Wai and Wen-Hung Wang, “High-Performance Stand- Alone Photovoltaic Generation System”, IEEE Transactions on Industrial Electronics, Vol/Issue: 55 (1). Pp. 240-250, 2008
R. Gules, J. De Pellegrin Pacheco, H. Leaes Hey and J. Imhoff, “A Maximum Power Point Tracking System with Parallel Connection for PV Stand-Alone Applications”, IEEE Transactions on Industrial Electronics, Vol/Issue: 55 (7). Pp. 2674-2683, 2008
M.J.V. Vazquez, J.M.A. Marquez, and F.S. Manzano. “A Methodology for Optimizing Stand-Alone PV-System Size Using Parallel-Connected DC/DC Converters”, IEEE Transactions on Industrial Electronics, Vol. 55. Pp.2664–2673, 2008
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This research is a study of a new control method of switching non-isolated
dc-dc boost converters used in Photovoltaic systems. This method is called
Sliding Mode Control (SMC), which is considered as an alternative to other
methods, to keep a sta
ble and constant output voltage by changing the input
voltage and load current. The analyzing method of the switching nonisolated
dc-dc boost converters using SMC shows the same complexity of
Clasic circuits, but it gives an increasing potential and a high-dynamic
response to ensure a constant output voltage reaches to 40volt by changing
the input voltage in the range (16-21volt) and the load (8-13Ω). Methods to
measure the accuracy, error, and efficiency of maximum power point
trackers (MPPT) have been identified and presented in a schematic way,
together with definitions of terms and calculations.
DC-DC converter is one of the most essential component for
efficient utilization in renewable energy sources.
The main goal of this paper is to use Maximum power point
tracking (MPPT) system and buck-boost DC/DC converter in the
photovoltaic (PV)
system to maximize the (PV) output power,
irrespective of the temperature and irradiation conditions.
The article studies the open loop
and closed loop systems for the improved converter. An improved
DC-DC boost converter is modeled and simulated using Matlab
R2013a.
The simulation and experimental results of the tow systems are
presented and co
mpared. The performance of the improved
converter is also compared with the conventional boost converter.The article studies the open loop
and closed loop systems for the improved converter. An improved
DC-DC boost converter is modeled and simulated using Matlab
R2013a.
The simulation and experimental results of the tow systems are
presented and compared. The performance of the improved
converter is also compared with the conventional boost converter.
One of the principal applications of fuzzy logic is in control
system design. Fuzzy logic controllers (FLC) can be used to control
systems where the use of conventional control Techniques may be
Problematic .in this paper Fuzzy logic controller is
fabricated on
modern Field Programmable Gate Array (FPGA)Card to track the
sun to increase the energy generation efficiency of solar cells. Sun
Tracking Controller is tested using model designed by
Matlab/Simulink program. Finally we have compared with a
conventional perturbation and observation controller. Simulation
and experimental results show that performance of the fuzzy
controller with FPGA is better than the perturbation and observation
controller.
Fuzzy logic control is used to connect a photovoltaic system to the electrical grid by using three phase fully
controlled converter (inverter), This controller is going to track the maximum power point and inject the
maximum available power from th
e PV system to the grid by determining the trigger angle that must be
applied on the switches: Linguistic variables are going to be chosen to determine the amount of change in
the trigger angle of the inverter to track the maximum power.
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