Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Overview of Various Voltage Control Technologies for Wind Turbines and AC / DC Connection Systems

Version 1 : Received: 20 April 2023 / Approved: 20 April 2023 / Online: 20 April 2023 (08:34:21 CEST)

A peer-reviewed article of this Preprint also exists.

Wu, Y.-K.; Gau, D.-Y.; Tung, T.-D. Overview of Various Voltage Control Technologies for Wind Turbines and AC/DC Connection Systems. Energies 2023, 16, 4128. Wu, Y.-K.; Gau, D.-Y.; Tung, T.-D. Overview of Various Voltage Control Technologies for Wind Turbines and AC/DC Connection Systems. Energies 2023, 16, 4128.

Abstract

Wind power generation is one of the mainstream renewable energy resources. Voltage stability is as important as the frequency stability of a power system with a high penetration of wind power generation. The advantages of high-voltage direct current (HVDC) transmission systems become more significant with the increase of both installed capacity and transmission distance in offshore wind farms. Therefore, this study discusses about various voltage control methods for wind turbines and HVDC transmission systems. First, various voltage control methods of a wind farm were introduced, and they include QV control and voltage droop control. The reactive power of a wind turbine varies with active power, while the active power from each wind turbine may be different owing to wake effects. Thus, QV and voltage droop control with varying gain values were also discussed in this paper. Next, the voltage control methods for a HVDC transmission system, such as power factor control, voltage control, and Vac-Q control, are also summarized and tested in this study. When a three-phase short circuit fault occurs or a suddan reactive power load increases, the system voltage would drop immediately. Thus, various voltage control methods for wind turbines or HVDC can make the system's transient response more stable. Therefore, this study implemented the simulation scenarios, including a three-phase short circuit fault at the point of common coupling (PCC) or a sudden increase of reactive power load, and adopted various voltage control methods, which aims to verify whether additional voltage control methods are effective to improve the performance of transient voltage.

Keywords

Renewable Energy; Voltage Stability; High-Voltage Direct Current (HVDC); Voltage Control; Voltage Droop Control

Subject

Engineering, Electrical and Electronic Engineering

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.