Title :
Analytical modelling of HVDC-HVAC systems
Author :
Jovcic, Dragan ; Pahalawaththa, Nalin ; Zavahir, Mohamed
Author_Institution :
Auckland Univ., New Zealand
fDate :
4/1/1999 12:00:00 AM
Abstract :
A new HVDC-HVAC analytical model is presented in this paper. The model comprises three subsystems: AC system, PLL and DC system. The model is structured in such a manner to enable small signal analysis of HVDC-HVAC interactions and possible problems arising from these interactions, CIGRE HVDC Benchmark model is used as a test system. Model verification, performed using PSCAD/EMTDC simulations, showed good response matching for all DC and AC system variables. As an example of application of this model the influence PLL dynamics on the system stability is studied offering the important rules for tuning of PLL gains
Keywords :
HVDC power transmission; phase locked loops; power system stability; state-space methods; AC system; CIGRE HVDC Benchmark model; DC system; HVDC transmission; HVDC-HVAC interactions; HVDC-HVAC systems; PLL; PLL dynamics; PLL gains tuning; PSCAD/EMTDC simulations; model verification; phase locked loops; power system modelling; response matching; small signal analysis; state space methods; system stability; Analytical models; HVDC transmission; Inverters; Phase locked loops; Power system dynamics; Power system modeling; Power system simulation; Power system stability; Rectifiers; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
