Verification of Hybrid Real Time Hvdc Simulator
Journal of Electrical Engineering & Technology, Vol. 1, No. 1, pp. 23~27, 2006 23
Verification of Hybrid Real Time HVDC Simulator in Cheju-Haenam HVDC System
Byeong-Mo Yang† , Chan-Ki Kim*, Gil-Jo Jung** and Young-Hyun Moon***
Abstract - In this paper a Hybrid Real Time HVDC Simulator for both operator Training and Researching in the Cheju-Haenam HVDC System is proposed and its performance is studied by means of RTDS (Real Time Digital Simulator), EMTDC (Electro-Magnetic Transients system for DC), PSS/E (Power System Simulator for Engineering), and experienced scenarios. The objective of this paper is to represent the strategy in development for KEPCO’s hybrid HVDC simulator for the Cheju-Haenam HVDC system. This simulator consists of two DC stations, DC cables, external digital/analog controllers, monitoring systems and control desk for education, and AC networks. Its suitability for operator’s education is tested during startup/shutdown and normal state operations. Dynamic performances of it are also verified.
Keywords: Hybrid real time HVDC simulator, Cheju-Haenam HVDC system, RTDS
1. Introduction
The 180kV 300MW HVDC System of the Korea Electric Power Corporation (KEPCO), completed in 1988, conveys relatively cheap electric power by undersea 100 km dc cables from Haenam to Cheju C/S in Jeju Island. This 12 pulse bipolar system normally conveys 150 MW, which corresponded to 40% of the total load demand of Jeju Island. The HVDC system basically adopts inverter operation at Jeju in which current control is used as the main control and average gamma control is used as the secondary control. At Haenam, where rectifier operation is adopted, voltage control is used as the main control and current control is used as the secondary control. Fig. 1 presents the control scheme of the HVDC system[1].
Faults in the Cheju-Haenam HVDC System could be caused by the disturbances of the AC network, the ageing and self-malfunction of the DC system, and operator
Verification of Hybrid Real Time HVDC Simulator in Cheju-Haenam HVDC System
Byeong-Mo Yang† , Chan-Ki Kim*, Gil-Jo Jung** and Young-Hyun Moon***
Abstract - In this paper a Hybrid Real Time HVDC Simulator for both operator Training and Researching in the Cheju-Haenam HVDC System is proposed and its performance is studied by means of RTDS (Real Time Digital Simulator), EMTDC (Electro-Magnetic Transients system for DC), PSS/E (Power System Simulator for Engineering), and experienced scenarios. The objective of this paper is to represent the strategy in development for KEPCO’s hybrid HVDC simulator for the Cheju-Haenam HVDC system. This simulator consists of two DC stations, DC cables, external digital/analog controllers, monitoring systems and control desk for education, and AC networks. Its suitability for operator’s education is tested during startup/shutdown and normal state operations. Dynamic performances of it are also verified.
Keywords: Hybrid real time HVDC simulator, Cheju-Haenam HVDC system, RTDS
1. Introduction
The 180kV 300MW HVDC System of the Korea Electric Power Corporation (KEPCO), completed in 1988, conveys relatively cheap electric power by undersea 100 km dc cables from Haenam to Cheju C/S in Jeju Island. This 12 pulse bipolar system normally conveys 150 MW, which corresponded to 40% of the total load demand of Jeju Island. The HVDC system basically adopts inverter operation at Jeju in which current control is used as the main control and average gamma control is used as the secondary control. At Haenam, where rectifier operation is adopted, voltage control is used as the main control and current control is used as the secondary control. Fig. 1 presents the control scheme of the HVDC system[1].
Faults in the Cheju-Haenam HVDC System could be caused by the disturbances of the AC network, the ageing and self-malfunction of the DC system, and operator
References: [1] Cheju-Haenam HVDC Manual, GEC Alstom, 1993. [2] Expanding an Analogue HVDC Simulator’s Modeling Capability using a Real Time Digital Simulator (RTDS), ICDS-95, April 1995. [3] RTDS Manual, RTI, 2003. [4] Enhanced Performance of a Conventional HVDC Analogue Simulator with a Real Time Digital Simulator, PSCC11, Vol. 1, pp. 663-669, August 1993. [5] P. Kundur, Power System Stability and Control, Mcgraw-Hill, 1996. [6] High-Voltage Direct Current Handbook, EPRI TR104166S, 1994. [7] Li Han, Han Y.D, etc., Verification of HVDC Controller Using an Advanced Real Time Simulator, IEEE, Vol. 1, pp. 493-497, 1998. [8] Giesbrecht,W.J., Jiang,X, Mazur,G, Model Development of an Actual HVDC Control for the RTDS Simu-