A new partially isolated hybrid output of multiport multilevel converter for photovoltaic based power supplies. (January 2022)

• Record Type: Journal Article
• Authors: Rajan, P.; Jeevananthan, S.
• Is Part Of: Journal of energy storage. Volume 45(2022)
• Publication Date: 2022-01
• Subjects: Renewable energy system (RES) -- Single stage multilevel DC-link multilevel inverter (SSMLDCMLI) -- Multiport converters (MPC) -- Multilevel inverters(MLI) -- Photovoltaic (PV) -- Pulse width modulation(PWM); Energy storage -- Periodicals; Energy storage -- Research -- Periodicals; 621.3126
• DOI: 10.1016/j.est.2021.103436
• Languages: English
• ISSNs: 2352-152X

Abstract

Abstract: Multiport converters (MPCs), which can have multiple inputs and multiple output (MIMO) ports, have been suggested to integrate a variety of sources (including storage facilities) with diversified loads, thereby guaranteeing both an effective utilization of sources and the uninterruptible supply to loads. MPCs transfer the power between those sources and (active/passive) loads concurrently/independently. The attractive features of MPCs include minimal component count, higher power conversion efficiency, haste response, higher power density, and hence better sizing, combined control point, and bidirectional and soft switching abilities. MPCs are the perfect solution in applications where complex energy distribution prevails, such as renewable energy systems (RES), hybrid electric vehicle (HEV) systems, DC power distribution systems, etc. This paper proposes a hybrid output multiport multilevel converter (HOMPMLC), which is a unique, partially isolated breed of MPC. The HOMPMLC is the multiple input and dual output (MIDO) converter, which can deliver twosome outputs (both AC and DC) from several DC sources. In the HOMPMLC, a new multilevel inverter (MLI) topology, Single stage multilevel DC-link multilevel inverter (SSMLDCMLI), is involved to synthesize a high quality AC output, which utilizes five switches for the seven level improved quality AC output, and the DC output port is accomplished with the help of a forward power converter. The working of the HOMPMLC is studied for a solar photovoltaic system in the MATLAB®Simulink R2016a simulation platform as well as in an experimental investigation involving 4 panels (Schüco MPE-340-AL-01; each 340 Watts). Highlights: To synthesize both AC and DC outputs for domestic consumers by utilizing the multiple inputs at improved performance. HOMPMLC, which is more suitable for meeting the requirements of a domestic application. A new MLI structure is inculcated which employs reduced switches for the seven-level high-quality AC output. HOMPMLC, suitable for interfacing all kinds of storage systems, viz. battery, fuel cell, etc.