The continuous commutation failure (CCF) of high-voltage direct-current (HVDC) transmission system will cause consecutive impacts to the AC-DC hybrid power system. This paper proposes an improved firing angle control strategy with the DC power recovery rate and AC fault severity considered to ...
摘要: The study of the transient performance of an HVDC converter using MATLAB requires modeling of the controls and power system elements. The MATLAB program is widely used for simulation of power systems. In the present paper MATLAB is used to simulating a 400 kV HVDC line关键词:...
The low L input is normally a firing angle (a) order and the high H input is from a phase-locked oscillator or equivalent. The Interpolated Firing Pulses component can be set to produce timed firing pulses for:A single GTO/IGBT A 6-Pulse GTO/IGBT bridge A single thyristor A 6-...
摘要: PURPOSE: To detect firing angle shift of a converter installed in an AC/DC converting station by taking out converter currents for three phases and comparing nontheoretical every order harmonic current with a predetermined level through a CPU....
网络释义 1. 控制射击 火控雷达 | Blog |... ... · 提供射击( Firing) ·控制射击(Firing Control) · 评估射击结果( Firing result assessment) ... blog.yahoo.com|基于2个网页 2. 触发控制 触发控制,Trigger... ... ) triggering control 触发控制 )firing control触发控制) internal trigger control...
The invention is applicable to HVDC transmission systems using thyratrons, ignitrons or mercury arc rectifiers but is particularly applicable to such systems using a large number of thyristors in series/parallel. In such an arrangement interference on the A.C. side during the triggering time may ...
Hill, Optimal firing-angle control of cascaded HVDC converters for minimum reactive power demand, Applied Power Electronics Conference and Exposition, 1993. APEC '93, in: Conference Proceedings 1993, Eighth Annual, March 7-11, 1993, pp. 662-667....
This research is to regulate firing angle inverter-side of high voltage direct current (HVDC) system using ANFIS-based controller. Average-value model (AVM) is used to implement the HVDC systems because the AVM is needed in level-system simulation of power systems. The AVM neglects switching-...
Matsuura, "Predictive firing angle calculation for constant effective margin angle control of CCC-HVDC," IEEE Transactions on Power Delivery, vol. 15, pp. 1087-1093, 2000.FUNAKI, T.; MATSUURA, K. Predictive firing angle calculation for constant effective margin angle control of CCC-HVDC. IEEE ...
For the usual bipolar configuration of an HVDC converter station an attractive proposition is to have two converter transformers, each with a combined star-delta winding arrangement, with differential firing-angle control of their respective bridges....