Abstract
In electrical power converter systems, the presence of an LC input filter can efficiently reduce the Electromagnetic Interference (EMI) effect, and at the same time protect the converter and the load from being impacted by sharp input impulse voltages. However, for transportation applications, the weight and size limitations of input LC filters for power converters have to be taken into consideration. The reduction of LC filter size may impair the system stability margin and dynamic response. In serve cases, the system may even become unstable. Thus, in order to ensure the system stability while minimizing the input LC filter size, the implementation of a stabilizer for the system control is needed. In this paper, a novel digital stabilizer design method is proposed for a boost power converter with a small input LC filter. The proposed method is based on input filter inductance current measurements and DSP (Digital Signal Processor) -based digital stabilizer design. Simulation and experimentation confirm the validity of the proposed approach.
Highlights
Power electronic devices have been widely used in modern electrical power generation and conversion systems
In those on-board DC microgrid systems, an input LC filter is usually added at the DC/DC power converter stage to solve the problem of Electromagnetic Interference (EMI) and instantaneous impulse voltage [3,4,5,6], but it is known that with the presence of an LC filter in cascade, the system damping ratio may be decreased and instability risks may be increased by the interaction between the filter and the converter [1,7]
LC filter is a novel stabilizer powerconverter converter system with a small input proposed. This stabilizer is realized by measuring the input filter inductance current and designing proposed
Summary
Power electronic devices have been widely used in modern electrical power generation and conversion systems. Power converters play an important role in electrified powertrains in transportation applications, such as electric/hybrid vehicles (EV/HEV) and more-electric-aircraft (MEA) [1,2]. In those on-board DC (direct current) microgrid systems, an input LC filter is usually added at the DC/DC power converter stage to solve the problem of EMI and instantaneous impulse voltage [3,4,5,6], but it is known that with the presence of an LC filter in cascade, the system damping ratio may be decreased and instability risks may be increased by the interaction between the filter and the converter [1,7].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
