Abstract
Due to severe geographical conditions, limited investment and environmental pressure, HVDC sending systems are often weakly interconnected with main network, Sometimes HVDC sending systems may even operate in islanded mode. Over-voltage/low-voltage after large disturbances becomes a serious problem. Static over-voltage/low-voltage problem in weakly interconnected or islanded HVDC sending systems is studied in this paper. An optimization method for dynamic reactive power reserve based on quasi-steady state sensitivity is proposed. Firstly, sensitivities of generator reactive power and bus voltage to reactive power disturbance are derived. Secondly, a method to calculate voltage variations with a sensitivity method considering HVDC transmission systems is put forward. Thirdly, system effective dynamic reactive power reserve is defined and deduced. Fourthly, an optimization model and process for dynamic reactive power reserve is come up with. Finally, the proposed algorithm is tested on a practical power grid. Simulation results demonstrate its effectiveness and feasibility.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
