A General Polynomial Reverse Design of Step-Up Converters for EV Battery Applications

作者：Zhang, Guidong; Yu, Samson S.^*; Chen, Weichen; Zhang, Bo; Zhang, Yun

来源：IEEE Transactions on Vehicular Technology, 2022, 71(3): 2628-2638.

DOI：10.1109/TVT.2021.3139105

• Voltage
• Topology
• Switches
• Design methodology
• DC-DC power converters
• Systematics
• Batteries
• Converter circuits
• high step-up converters
• polynomial relations
• reverse design

The boom of electric vehicles (EVs) has urged new designs and applications of power conversion technologies. Power converters, as one of the most critical components in EV battery systems, have seen significant developments in recent years. However, thus far forward design approaches for power converter topologies have been widely adopted, which are based on engineers' empirical knowledge and instinct. This has been deemed having low design efficiency with high randomness and limited applicability, due to the absence of a systematic guideline. This approach, though widely adopted, can no longer meet the increasingly stringent and diverse needs of today's research and industry, with the emerging trend of renewable energy sources. Aware of these drawbacks, in this study, we propose a novel reverse design approach through establishing general polynomial relations between the topology and voltage gain of high-step-up converters, which are found to be functions of basic boost converters' voltage gains. With this newly formed polynomial relation, a generalized approach to devising power converters for various industrial needs can be derived, which is baptized the General Polynomial Reverse Design (GPRD) approach. Three polynomial converters are derived as examples to validate the proposed method, whereby their functionality and performances are verified and tested by prototype experiments, which substantiate the proposed design theory.

• 单位
  广东工业大学