Power Flow Control Strategy Based on the Voltage Vector Distribution for a Dual Power Electric Vehicle With an Open-End Winding Motor Drive System | Zendy

Yi-Fan Jia | Zendy; Nan Xu | Zendy; Liang Chu | Zendy; Li-Feng Zhang | Zendy; Di Zhao | Zendy; Yu-Kuan Li | Zendy; Zhi-Hua Yang | Zendy

Open Access

Power Flow Control Strategy Based on the Voltage Vector Distribution for a Dual Power Electric Vehicle With an Open-End Winding Motor Drive System

Author(s) -

Yi-Fan Jia,

Nan Xu,

Liang Chu,

Li-Feng Zhang,

Di Zhao,

Yu-Kuan Li,

Zhi-Hua Yang

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2872697

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

A dual inverter feeding an open-end winding permanent magnet synchronous motor drive system can realize controllable power sharing or power flow between two independent power sources without a dc/dc converter. The two power sources can be selected among many options, such as fuel cells, engine generators, batteries, and supercapacitors. In this paper, the dual inverter's voltage vector distribution and power flow principles are discussed. Based on the analyses of the overlapping area of the two inverters' modulation ranges, the dual inverter's modulation capability is exploited sufficiently. A novel voltage vector distribution strategy is proposed based on a dual space vector pulse-width modulation control scheme, which is composed of four patterns using basic voltage vectors, single-saturated vectors, double-saturated vectors, and linear-saturated vectors, respectively. By selecting the most suitable pattern, the power-sharing demand can be met in its maximum range while the switching frequencies of the two inverters are lowered and well-balanced. Simulation results confirm the validity and the advantages of the proposed strategy and clarify the power-sharing range in the entire operating range of the motor. This system also provides a scheme for energy management in electric vehicle applications.

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