Metaheuristic Based Solution for the Non‐Linear Controller of the Multiterminal High‐Voltage Direct Current Networks

Muhammad Ahmad Khan, Xiaocong Li, Muhammad Zain Yousaf, Ali Mustafa and Mingshuo Wei
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Muhammad Ahmad Khan: College of Electrical Engineering, Guangxi University, Nanning 530004, China
Xiaocong Li: College of Electrical Engineering, Guangxi University, Nanning 530004, China
Muhammad Zain Yousaf: College of Electrical Engineering, Guangxi University, Nanning 530004, China
Ali Mustafa: School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Mingshuo Wei: College of Electrical Engineering, Guangxi University, Nanning 530004, China

Energies, 2021, vol. 14, issue 6, 1-20

Abstract: The purpose of this study is to improve the P-I controllers of the voltage-source converters (VSC)-based multiterminal high voltage direct-current (MT-HVDC) networks. Since the VSCs are the non-linear elements of the MT-HVDC stations, the classical optimization methods, which approximately implement the linear model to optimize the P-I controllers of the VSCs, do not generate optimal results. Therefore, this paper presents a novel technique to optimize the VSC-based MT-HVDC grids’ P-I controllers by embedding the artificial bee colony (ABC) algorithm. The voltage-droop control method is employed at on-shore grids to ensure the active and reactive power balance within MT-HVDC networks. During an evaluation, achieved via a detailed four-terminal MT-HVDC model designed in PSCAD/EMTDC, the improved results obtained under different dynamic situations such as unbalance wind power generation, change in load demand at the on-shore side grids, and eventual VSC disconnection, respectively.

Keywords: VSC‐based MT‐HVDC grids; artificial bee colony algorithm (ABC); voltage source converter; multiobjective‐optimizations; proportional‐integral (P‐I) controller (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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