- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
[IEEE 2019 IEEE International Conference on Smart Instrumentation, Measurement and Application (ICSIMA) - Kuala Lumpur, Malaysia (2019.8.27-2019.8.29)] 2019 IEEE International Conference on Smart Instrumentation, Measurement and Application (ICSIMA) - Power Electronic Interface for Low Voltage DC Link Using Photovoltaic Cells with ANN based MPPT
摘要： The aim of this paper is to design and develop low voltage direct current system within building structures to cater to low power load demands like LED lights, BLDC fans, desktops computers etc. The intended system comprises of a solar panel, a buck converter, a battery and a boost converter. The output of boost converter will be 48 V direct current which can cater to loads below 1 kw. The buck converter regulates the output of solar panel to constant voltage, which is stored in a battery and boosted to 48 V direct current as per household requirements. The proposed system will simplify the transmission and distribution of energy by ensuring direct current supply to appliances which are devised to run on the same. This will rule out the need for rectifier within household appliances, thereby reducing their size and cost. The future scope of this project lies in the fact that the entire system can be integrated into a module which can be used in inaccessible and rural areas by dint of a solar panel that will serve as source and the output of module will be 48V which can be directly used for household purposes. The concept of artificial neural network is incorporated for maximum power point tracking, maintaining constant output voltage.
关键词： MPPT,Low Voltage DC,ANN
更新于2025-09-23 15:21:01
-
Enhanced Power Output from the PV with Low Input Ripple DC-DC Converter
摘要： The primary objective of Maximum Power Point Tracking (MPPT) for PV systems connected to a low-voltage DC grid is to extract the maximum possible power output from the PV array. Normally high-frequency switched mode power converters are employed to track the maximum power. These converters, however, impose switching frequency voltage ripple on the PV output. This causes fluctuation around the Maximum Power Point (MPP) and results in power loss. These losses can be reduced using electrolytic capacitors, however, the electrolytic capacitors’ lifespan is relatively shorter than that of a PV panel. In this paper, an interleaved boost converter is used to reduce high-frequency voltage ripple introduced on panel. Hence, smaller values of longer lifespan capacitors such as film capacitors will be sufficient to curtail the smaller ripple. Moreover, film capacitors are selected based on voltage ripple. Analysis was carried out for calculating voltage ripple imposed on PV module to select input filter more precisely. In addition, reduction in the voltage ripple is calculated quantitatively and is compared with that of a conventional boost converter. Enhanced power output from the PV panel is mathematically proven and experimentally demonstrated.
关键词： photovoltaic panel,switching frequency voltage ripple,PV output power,electrolytic capacitors,film capacitor,maximum power point tracking (MPPT),interleaved boost converter (IBC),low-voltage dc grid,DC-DC converter,photovoltaic (PV) system
更新于2025-09-19 17:15:36