Novel High-Efficiency Three-Port Bidirectional Step-Up/Step-Down DC–DC Converter for Photovoltaic Systems
نویسندگان
چکیده
This paper presents a novel high-efficiency three-port bidirectional DC–DC converter for photovoltaic (PV) systems. A PV system’s output is stepped up to supply DC bus or load while charging the battery. When insufficient, battery voltage bus; when has excess energy, it down charge Thus, step-up/step-down achieved. common-core coupled inductor was designed and adopted in proposed converter. Power switches diodes circuit are shared achieve operation. In step-up mode, clamp capacitor used reduce spike on main switches. Moreover, voltage-doubling recovers energy from secondary-side leakage inductance. Furthermore, input capacitors recover primary-side inductance step-down mode. can improve its conversion efficiency. Finally, this details implementation of 500 W verify feasibility practicability topology. According measurement results, highest efficiency levels mode were 94.3% 94.1%, respectively; 95.2%.
منابع مشابه
A High-Efficiency Isolated-Type Three-Port Bidirectional DC/DC Converter for Photovoltaic Systems
This paper proposes a novel high-efficiency isolated three-port bidirectional DC/DC device for photovoltaic (PV) systems. The device contains a high step-up converter for PV modules to supply power to the DC bus, and a bidirectional charge/discharge control circuit for the battery with an improved boost-flyback converter. When the PV modules supply sufficient energy, their output can be stepped...
متن کاملA High-Efficiency Isolated LCLC Multi-Resonant Three-Port Bidirectional DC-DC Converter
In this paper, an isolated multi-resonant three-port bidirectional direct current-direct current (DC-DC) converter is proposed, which is composed of three full bridges, two inductor-capacitorinductor-capacitor (LCLC) multi-resonant tanks and a three-winding transformer. The phase shift control method is employed to manage the power transmission among three ports. Relying on the appropriate para...
متن کاملA Multi-port High Step-up DC/DC Converter for Hybrid Renewable Energy Application
This paper presents a novel multi-port DC/DC converter which is suitable to be used as the interface of hybrid renewable energy systems. The converter contains three unidirectional power flow ports which two of them are input ports and are connected to two independent energy sources while the third one is the output port that feeds a standalone load. Furthermore, the proposed converter contains...
متن کاملAn Efficient High-Step-Up Soft-Switching Boost Converter for Photovoltaic Application
In this paper an efficient high step-up converter with a coupled- inductor with soft- switching operation is presented. The proposed topology includes a coupled-inductor boost converter for raising the voltage gain. Moreover, a simple auxiliary resonant circuit composed of an auxiliary switch, a clamping diode and a resonant tank (inductor, capacitor), is adopted in this paper. The coupled-indu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sustainability
سال: 2021
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su13147913