TY - GEN
T1 - Approximate dynamic programming coordinated control in multi-infeed HVDC power system
AU - Lu, Chao
AU - Si, Jennie
AU - Wu, Xiaochen
AU - Li, Peng
PY - 2006
Y1 - 2006
N2 - This paper is concerned with large scale, interconnected, AC/DC transmission network of a power system. As the system grid becomes larger and power demand becomes higher, low frequency oscillation has become the primary concern of power system stability. High voltage direct current (HVDC) modulation control is a traditional means of damping the low frequency swing. However, for multi-infeed system, the interactions and correlations among multiple HVDC links have made the stabilizing controller design more challenging. The current approach to controller design, which only takes into consideration of a single transmission link, is not sufficient to cope with the complex network topology, and the stringent stabilization requirement of a system operating close to its limit. In this paper, a coordinated control framework using an approximate dynamic programming (ADP) technique is proposed based on wide-area measurement system (WAMS). Since real-time system responses are available through WAMS, the parameters of different controllers can be adjusted online to optimize one common objective function that reflects the system stability as a whole instead of just one single transmission link. The paper will include a design procedure on how ADP can be applied. The performance of this coordinated control approach using the proposed ADP is validated in a real system, namely the China Southern Grid.
AB - This paper is concerned with large scale, interconnected, AC/DC transmission network of a power system. As the system grid becomes larger and power demand becomes higher, low frequency oscillation has become the primary concern of power system stability. High voltage direct current (HVDC) modulation control is a traditional means of damping the low frequency swing. However, for multi-infeed system, the interactions and correlations among multiple HVDC links have made the stabilizing controller design more challenging. The current approach to controller design, which only takes into consideration of a single transmission link, is not sufficient to cope with the complex network topology, and the stringent stabilization requirement of a system operating close to its limit. In this paper, a coordinated control framework using an approximate dynamic programming (ADP) technique is proposed based on wide-area measurement system (WAMS). Since real-time system responses are available through WAMS, the parameters of different controllers can be adjusted online to optimize one common objective function that reflects the system stability as a whole instead of just one single transmission link. The paper will include a design procedure on how ADP can be applied. The performance of this coordinated control approach using the proposed ADP is validated in a real system, namely the China Southern Grid.
KW - Dynamic programming
KW - Multi-infeed HVDC system
KW - Neurocontrollers
KW - Power system dynamic stability
UR - http://www.scopus.com/inward/record.url?scp=70349398109&partnerID=8YFLogxK
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U2 - 10.1109/PSCE.2006.296273
DO - 10.1109/PSCE.2006.296273
M3 - Conference contribution
AN - SCOPUS:70349398109
SN - 142440178X
SN - 9781424401789
T3 - 2006 IEEE PES Power Systems Conference and Exposition, PSCE 2006 - Proceedings
SP - 2131
EP - 2135
BT - 2006 IEEE PES Power Systems Conference and Exposition, PSCE 2006 - Proceedings
T2 - 2006 IEEE PES Power Systems Conference and Exposition, PSCE 2006
Y2 - 29 October 2006 through 1 November 2006
ER -