With the continuous improvement of HVDC transmission technology, the traditional HVDC transmission system of converter has stepped into the mature period. Because of the circulation in the MMC converter, the converter will produce extra loss and the bridge arm current waveform will be distorted. Therefore, the corresponding circulation suppression strategy should be formulated in the control system. In this paper, the mechanism of phase circulation in MMC is analyzed. The main components of the circulation are second and fourth harmonics. Based on the traditional circulation suppression method based on PR controller, an improved PIR controller based on notch notch is proposed. Through the simulation experiment on PSCAD/EMTDC simulation platform, the effect of the improved circulation suppressor proposed in this chapter is verified.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.