Minimizing DC system loss in multi-terminal HVDC systems through adaptive droop control

Javad Khazaei; Zhixin Miao; Lakshan Piyasinghe; Lingling Fan

doi:10.1016/j.epsr.2015.04.020

Minimizing DC system loss in multi-terminal HVDC systems through adaptive droop control

Javad Khazaei, Zhixin Miao, Lakshan Piyasinghe, Lingling Fan

School of Science, Engineering & Technology (Harrisburg)

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

Abstract In this paper, droop control of inverters in a multi-terminal HVDC (MTDC) system is designed to achieve minimum DC system loss while preventing converter overvoltage. Circuit analysis along with optimization analysis is first conducted to seek the optimal droop control gains. Contingent operating conditions are then considered. The droop control gains will adapt to achieve minimum loss as well as constant inverter side dc voltage. A 6-terminal MTDC system with detailed control loops as well as PWM-based switching is built in a real-time digital simulator, RT-Lab. Time-domain simulation results validate the circuit analysis results and demonstrate the feasibility of the proposed adaptive droop control.

Original language	English (US)
Article number	4320
Pages (from-to)	78-86
Number of pages	9
Journal	Electric Power Systems Research
Volume	126
DOIs	https://doi.org/10.1016/j.epsr.2015.04.020
State	Published - Sep 1 2015

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.epsr.2015.04.020

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title = "Minimizing DC system loss in multi-terminal HVDC systems through adaptive droop control",

abstract = "Abstract In this paper, droop control of inverters in a multi-terminal HVDC (MTDC) system is designed to achieve minimum DC system loss while preventing converter overvoltage. Circuit analysis along with optimization analysis is first conducted to seek the optimal droop control gains. Contingent operating conditions are then considered. The droop control gains will adapt to achieve minimum loss as well as constant inverter side dc voltage. A 6-terminal MTDC system with detailed control loops as well as PWM-based switching is built in a real-time digital simulator, RT-Lab. Time-domain simulation results validate the circuit analysis results and demonstrate the feasibility of the proposed adaptive droop control.",

author = "Javad Khazaei and Zhixin Miao and Lakshan Piyasinghe and Lingling Fan",

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AU - Khazaei, Javad

AU - Miao, Zhixin

AU - Piyasinghe, Lakshan

AU - Fan, Lingling

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Abstract In this paper, droop control of inverters in a multi-terminal HVDC (MTDC) system is designed to achieve minimum DC system loss while preventing converter overvoltage. Circuit analysis along with optimization analysis is first conducted to seek the optimal droop control gains. Contingent operating conditions are then considered. The droop control gains will adapt to achieve minimum loss as well as constant inverter side dc voltage. A 6-terminal MTDC system with detailed control loops as well as PWM-based switching is built in a real-time digital simulator, RT-Lab. Time-domain simulation results validate the circuit analysis results and demonstrate the feasibility of the proposed adaptive droop control.

AB - Abstract In this paper, droop control of inverters in a multi-terminal HVDC (MTDC) system is designed to achieve minimum DC system loss while preventing converter overvoltage. Circuit analysis along with optimization analysis is first conducted to seek the optimal droop control gains. Contingent operating conditions are then considered. The droop control gains will adapt to achieve minimum loss as well as constant inverter side dc voltage. A 6-terminal MTDC system with detailed control loops as well as PWM-based switching is built in a real-time digital simulator, RT-Lab. Time-domain simulation results validate the circuit analysis results and demonstrate the feasibility of the proposed adaptive droop control.

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Minimizing DC system loss in multi-terminal HVDC systems through adaptive droop control

Abstract

All Science Journal Classification (ASJC) codes

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