Comparative analysis on selection and synthesis of multiple input converters: a review

Abstract

Power electronics converters for DC-DC conversion are extensively used in various applications. Further, with an increase in demand for integrating multiple sources with distinct I-V characteristics, a change over from single input DC-DC converters to multiple input converters (MICs) has been observed in the recent past. MICs are widely used for effective integration of energy sources in various applications ranging from milliwatt to megawatt power levels and millivolt to several kilovolts of voltage levels. The combination of sources with respective energy buffering units allow for a new configuration and topology, which are quite confusing and challenging to pick one for a specific application. MICs are categorised based on their characteristics, and each category has its pros and cons depending on the application. Further, this study categorises and comprehensively reviews the MICs based on their characteristics. In this regard, this study aims to provide a clear picture of MICs and the general rules and framework for the selection of MIC topology for a specific application. Also, the key features and limitations of a few recently proposed MICs, followed by the selection of MICs for different applications are discussed.

Efficient Multi-Port Bidirectional Converter With Soft-Switching Capability for Electric Vehicle Applications

“…By considering V in1 = V in2 = V IN the voltage gains of mentioned operating modes are the same. Equation (3) indicates the magnetizing volt-second balance principle applied on magnetizing inductance which results the voltage gain presented by equation (4).…”

“…By increasing the number of sources, more power converters must be employed, which leads to a higher number of components. Instead of using a dedicated converter for each input source, a multi-port converter can be used [4], [5]. In this type of converters, different converters are integrated to reduce the number of components.…”

Multipurpose battery‐assisted solar water pumping system for off‐grid applications: design and development

“…where I is the root mean square (RMS) value of motor winding current. By substituting (24)- (26) into (22), the excitation current in the machines' plane is obtained as i αβ = 3I(sin wt + jcos wt) = 3Ie jwt (27) Equation (27) shows that the excitation current vector rotates at wt speed in the space, which produces the rotating magnetic field and effective torque in the machine. By substituting (24)- (26) into (23), the zero-sequence component is obtained as…”

“…Equation (28) shows that alternating magnetic flux in the machine corresponding to the given winding current is zero. Equations (27) and (28), and related conclusions are summarised in Table 5.…”

“…In this system, the power electronic converters are a crucial element to interface between the photovoltaic (PV) array, the battery, and the load [24, 25]. Many topologies of power electronics converter were studied in the past for stand‐alone household applications [26, 27]. The schematic diagram of such a system is as shown in Fig.…”