Commutation Failure Elimination of LCC HVDC Systems Using Thyristor-Based Controllable Capacitors
نویسندگان
چکیده
منابع مشابه
Decreasing the Commutation Failure Frequency in HVDC Transmission Systems
In this paper we show how a fairly large proportion of those commutation failures that are due to single-phased short circuits to earth can be avoided. In a control circuit based on a digital signal processor (DSP) it is possible, with instantaneous results, to switch from a normal control strategy with equidistant firing pulses to a strategy that takes into consideration the potentially danger...
متن کاملMitigation of commutation faults in HVDC system
To transfer large amount of direct current power having high amplitude voltage over long distance, high voltage direct current (HVDC) transmission system is used. This system was introduced 60 year ago and now it is widely used all over the world. Some examples of HVDC systems are following; Voltage-SourcedConverter (VSC), current commutated converter (CCC) and line commutated converter (LCC) d...
متن کاملSilicon Carbide Gto Thyristor Loss Model for Hvdc Application
With the increase in use of power electronics in transmission and distribution applications there is a growing demand for cost effective and highly efficient converters. Most of the utility applications have power electronics integrated in the system to improve the efficiency and functionality of the existing system. The development of semiconductor devices is vital for the growth of power elec...
متن کاملApplications of Controllable Series Capacitors for Damping of Power Swings*
* Presented at the 5th Symposium of Specialists in Electric and Expansion Planning (V SEPOPE), May 19-24, 1996, Brazil Abstract This paper examines the use of controllable series capacitors for damping of electromechanical oscillations. The fundamental input signal for damping of power swings is discussed based on the study of eigenvalues of a linearized power system. The impact of a CSC on dam...
متن کاملSubsynchronous Torsional Interaction of Wind Farms with FSIG Wind Turbines Connected to LCC-HVDC Lines
High-voltage direct current (HVDC) lines with line-commutated converter (LCC) are being increasingly employed to transmit bulk wind power over long distance. However, this may cause the sub-synchronous torsional interaction (SSTI) between the wind farms and the LCC-HVDC system. The SSTI characteristics of wind farms with fixed-speed induction generator (FSIG) wind turbines connected to LCC-HVDC...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Power Delivery
سال: 2018
ISSN: 0885-8977,1937-4208
DOI: 10.1109/tpwrd.2017.2776867