Automatic generation control for DC-link power system

Goro Fujita, Goro Shirai, Ryuichi Yokoyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Citations (Scopus)

Abstract

This paper discusses LFC (load frequency control) with HVDC (High Voltage DC transmission system). So far, AGC (Automatic generation control) has been focused on economic dispatch control and load frequency control; especially the latter is mainly on frequency stabilization for ac-link network systems. However, the upcoming power-electronics based HVDC transmission system offers new aspects for the improvement of frequency control. In this paper, 2-area and 3-area network systems are used to discuss how a HVDC interconnected system works to improve frequency fluctuation for random load disturbance. Because DC-interconnection provides an adequate power exchange, reduction of frequency deviations for both systems is achieved if the control gain is tuned properly. However, the effect differs by geometrical differences. In order to discuss the effectiveness of HVDC link for load frequency control, the HVDC-link is designed as a feedback system of system state variables, whose concept has been used for Hokkaido-Honshu link in Japan and also proposed for Minami-Fukumitsus link in Japan. The simulated load fluctuation model is constructed to demonstrate actual load's behavior. In AC-interconnected power systems, the HVDC-link connecting two of the local systems does not provide frequency improvement since power exchange has been already achieved on the links. However, if two isolated power systems are interconnected, the HVDC-link will make the important role to sustain the frequency deviation within regular tolerance even if the capacity is very small compared to those of two systems, these acts as a single system and the disturbance to the smaller system is cancelled as a tiny disturbance of the whole system.

Original languageEnglish
Title of host publicationProceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
Pages1584-1588
Number of pages5
Volume3
EditionASIA PACIFIC
Publication statusPublished - 2002
EventIEEE/PES Transmission and Distribution Conference and Exhibition 2002 : Asia Pacific - Yokahama
Duration: 2002 Oct 62002 Oct 10

Other

OtherIEEE/PES Transmission and Distribution Conference and Exhibition 2002 : Asia Pacific
CityYokahama
Period02/10/602/10/10

Fingerprint

Electric power system interconnection
HVDC power transmission
Gain control
Power electronics
Large scale systems
Ion exchange
Stabilization
Feedback
Economics
System of systems

Keywords

  • BTB
  • HVDC
  • LFC
  • Load fluctuation
  • TBC

ASJC Scopus subject areas

  • Engineering(all)
  • Energy(all)

Cite this

Fujita, G., Shirai, G., & Yokoyama, R. (2002). Automatic generation control for DC-link power system. In Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference (ASIA PACIFIC ed., Vol. 3, pp. 1584-1588)

Automatic generation control for DC-link power system. / Fujita, Goro; Shirai, Goro; Yokoyama, Ryuichi.

Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. Vol. 3 ASIA PACIFIC. ed. 2002. p. 1584-1588.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fujita, G, Shirai, G & Yokoyama, R 2002, Automatic generation control for DC-link power system. in Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. ASIA PACIFIC edn, vol. 3, pp. 1584-1588, IEEE/PES Transmission and Distribution Conference and Exhibition 2002 : Asia Pacific, Yokahama, 02/10/6.
Fujita G, Shirai G, Yokoyama R. Automatic generation control for DC-link power system. In Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. ASIA PACIFIC ed. Vol. 3. 2002. p. 1584-1588
Fujita, Goro ; Shirai, Goro ; Yokoyama, Ryuichi. / Automatic generation control for DC-link power system. Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. Vol. 3 ASIA PACIFIC. ed. 2002. pp. 1584-1588
@inproceedings{d5bd175112e841b0af481cc09620e26f,
title = "Automatic generation control for DC-link power system",
abstract = "This paper discusses LFC (load frequency control) with HVDC (High Voltage DC transmission system). So far, AGC (Automatic generation control) has been focused on economic dispatch control and load frequency control; especially the latter is mainly on frequency stabilization for ac-link network systems. However, the upcoming power-electronics based HVDC transmission system offers new aspects for the improvement of frequency control. In this paper, 2-area and 3-area network systems are used to discuss how a HVDC interconnected system works to improve frequency fluctuation for random load disturbance. Because DC-interconnection provides an adequate power exchange, reduction of frequency deviations for both systems is achieved if the control gain is tuned properly. However, the effect differs by geometrical differences. In order to discuss the effectiveness of HVDC link for load frequency control, the HVDC-link is designed as a feedback system of system state variables, whose concept has been used for Hokkaido-Honshu link in Japan and also proposed for Minami-Fukumitsus link in Japan. The simulated load fluctuation model is constructed to demonstrate actual load's behavior. In AC-interconnected power systems, the HVDC-link connecting two of the local systems does not provide frequency improvement since power exchange has been already achieved on the links. However, if two isolated power systems are interconnected, the HVDC-link will make the important role to sustain the frequency deviation within regular tolerance even if the capacity is very small compared to those of two systems, these acts as a single system and the disturbance to the smaller system is cancelled as a tiny disturbance of the whole system.",
keywords = "BTB, HVDC, LFC, Load fluctuation, TBC",
author = "Goro Fujita and Goro Shirai and Ryuichi Yokoyama",
year = "2002",
language = "English",
volume = "3",
pages = "1584--1588",
booktitle = "Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference",
edition = "ASIA PACIFIC",

}

TY - GEN

T1 - Automatic generation control for DC-link power system

AU - Fujita, Goro

AU - Shirai, Goro

AU - Yokoyama, Ryuichi

PY - 2002

Y1 - 2002

N2 - This paper discusses LFC (load frequency control) with HVDC (High Voltage DC transmission system). So far, AGC (Automatic generation control) has been focused on economic dispatch control and load frequency control; especially the latter is mainly on frequency stabilization for ac-link network systems. However, the upcoming power-electronics based HVDC transmission system offers new aspects for the improvement of frequency control. In this paper, 2-area and 3-area network systems are used to discuss how a HVDC interconnected system works to improve frequency fluctuation for random load disturbance. Because DC-interconnection provides an adequate power exchange, reduction of frequency deviations for both systems is achieved if the control gain is tuned properly. However, the effect differs by geometrical differences. In order to discuss the effectiveness of HVDC link for load frequency control, the HVDC-link is designed as a feedback system of system state variables, whose concept has been used for Hokkaido-Honshu link in Japan and also proposed for Minami-Fukumitsus link in Japan. The simulated load fluctuation model is constructed to demonstrate actual load's behavior. In AC-interconnected power systems, the HVDC-link connecting two of the local systems does not provide frequency improvement since power exchange has been already achieved on the links. However, if two isolated power systems are interconnected, the HVDC-link will make the important role to sustain the frequency deviation within regular tolerance even if the capacity is very small compared to those of two systems, these acts as a single system and the disturbance to the smaller system is cancelled as a tiny disturbance of the whole system.

AB - This paper discusses LFC (load frequency control) with HVDC (High Voltage DC transmission system). So far, AGC (Automatic generation control) has been focused on economic dispatch control and load frequency control; especially the latter is mainly on frequency stabilization for ac-link network systems. However, the upcoming power-electronics based HVDC transmission system offers new aspects for the improvement of frequency control. In this paper, 2-area and 3-area network systems are used to discuss how a HVDC interconnected system works to improve frequency fluctuation for random load disturbance. Because DC-interconnection provides an adequate power exchange, reduction of frequency deviations for both systems is achieved if the control gain is tuned properly. However, the effect differs by geometrical differences. In order to discuss the effectiveness of HVDC link for load frequency control, the HVDC-link is designed as a feedback system of system state variables, whose concept has been used for Hokkaido-Honshu link in Japan and also proposed for Minami-Fukumitsus link in Japan. The simulated load fluctuation model is constructed to demonstrate actual load's behavior. In AC-interconnected power systems, the HVDC-link connecting two of the local systems does not provide frequency improvement since power exchange has been already achieved on the links. However, if two isolated power systems are interconnected, the HVDC-link will make the important role to sustain the frequency deviation within regular tolerance even if the capacity is very small compared to those of two systems, these acts as a single system and the disturbance to the smaller system is cancelled as a tiny disturbance of the whole system.

KW - BTB

KW - HVDC

KW - LFC

KW - Load fluctuation

KW - TBC

UR - http://www.scopus.com/inward/record.url?scp=0038646605&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038646605&partnerID=8YFLogxK

M3 - Conference contribution

VL - 3

SP - 1584

EP - 1588

BT - Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference

ER -