Multi-Port PWM DC-DC Power Converter for Renewable Energy Applications

Abstract

In this paper, a new multi-port DC-DC power converter used to deal with the intermittent nature and slow response in renewable energy applications is proposed. The proposed converter integrates a DC-DC converter and a DC-AC inverter, and the proposed circuit integrates various renewable energy sources in addition to the energy storage unit. By combining renewable energy sources with a statistical trend to offset each other, the impact of the intermittency can be considerably minimized. This combination increases the overall system reliability and usability. Moreover, integrating such systems with energy storage systems can overcome the slow response issue of renewable sources. It can provide the additional energy required by the load or absorb the extra energy provided by the power sources, which greatly improves the dynamics of the overall system. The proposed converter can reduce the system cost and size and improve the efficiency and reliability. The operation principle is studied in detail, and the design considerations are provided. The proposed architecture and its control strategy were analyzed and studied using the Simulink/MATLAB environment. Finally, the feasibility of the proper operation of the studied converter was experimentally verified based on the results of experimental studies conducted on a 300 W prototype implemented in a laboratory.

Artificial neural networks applied on induction motor drive for an electric vehicle propulsion system

“…This turns on the electric motor to transfer the brake energy to the battery and charge it for 4S. At the time t 16 s, the accelerator is suddenly pushed to 70% again [41,42].…”

A novel multiport converter switching scheme to integrate multiple renewable energy sources

“…As shown in Figure 2A, the DC‐based RESs suffering from the intermittency are the main application for DC MPCs, where these sources are integrated with energy storage systems to create a smooth and programmable power generation at output. In DC MPCs, the DC‐based RESs are directly connected to DC ports, although AC‐based sources have to be connected using an individual rectifier 9 . For grid integration of DC sources using DC MPCs, an additional DC–AC conversion stage is also required, increasing the number of power switches and also reducing the system's efficiency.…”

“…MPCs have been taking much attention since last decade due to their capability in integrating multiple sources/loads in a cost-efficient way. 7 Depending on the type of integrated sources/loads, MPCs can be divided into three categories: (a) DC MPCs, [8][9][10] (b) AC MPCs, [11][12][13] and (c) hybrid MPCs. [14][15][16][17] As shown in Figure 2A, the DC-based RESs suffering from the intermittency are the main application for DC MPCs, where these sources are integrated with energy storage systems to create a smooth and programmable power generation at output.…”

SPICE-Aided Modeling of Daily and Seasonal Changes in Properties of the Actual Photovoltaic Installation

“…The most commonly used silicon photovoltaic cells are characterized by photovoltaic conversion efficiency of up to 24% [13]. A separate problem arises with efficient inverters cooperating with photovoltaic installations and energy storage systems [2,[14][15][16][17][18][19][20][21].…”