A novel control scheme for enhancing low voltage ride through capability of solar generation

Yufei He, Zhao Xu, Yujun Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

5 Citations (Scopus)

Abstract

This paper proposes an advanced coordinated control scheme for low voltage ride through (LVRT) of the smart solar inverter. In MATLAB Simulink, a two-stage three-phase grid-connected converter with a practical PV model is developed in several scenarios, including the zero voltage ride through (ZVRT), which is regarded as the most extreme case. The simulation result indicates the faster transient response and the better power quality, compared with previous strategies. Active power fluctuation is reduced and reactive power is produced with a specific gradient based on the depth of voltage dip to satisfy the grid code. A more precise solar energy reference is realized by the proposed strategy with novel controlling loops. It is worthy to mention that more power is captured and stored without any additional devices, due to the adaptive DC-Link voltage and the change of operating restrictions.

Original languageEnglish
Title of host publicationCIEEC 2017 - Proceedings of 2017 China International Electrical and Energy Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages129-134
Number of pages6
ISBN (Electronic)9781509062751
DOIs
Publication statusPublished - 18 Jun 2018
Event2017 China International Electrical and Energy Conference, CIEEC 2017 - Beijing, China
Duration: 25 Oct 201727 Oct 2017

Publication series

NameCIEEC 2017 - Proceedings of 2017 China International Electrical and Energy Conference

Conference

Conference2017 China International Electrical and Energy Conference, CIEEC 2017
CountryChina
CityBeijing
Period25/10/1727/10/17

Keywords

  • Digital signal processor
  • Low voltage ride through
  • Simultaneous control
  • Smart inverter
  • Solar system

ASJC Scopus subject areas

  • Control and Optimization
  • Hardware and Architecture
  • Energy Engineering and Power Technology
  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

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