TRANSIENT STABILITY IMPROVEMENT BY FUZZY LOGIC-CONTROLLED BRAKING RESISTOR
TRANSIENT STABILITY IMPROVEMENT BY FUZZY LOGIC-CONTROLLED BRAKING RESISTOR
复制标题
通过模糊逻辑控制制动电阻提高瞬态稳定性
DOI：
10.2316/journal.203.2005.3.203-3331
复制
发表时间：
2005
影响因子：
0.5
通讯作者：
J. Tamura
中科院分区：
文献类型：
--
作者：
M. Ali;Y. Soma;T. Murata;J. Tamura
给出了模糊逻辑控制制动电阻提高暂态稳定性的分析结果。在电力系统中的一个主要的干扰，同步发电机的可变转子转速的测量，然后通过制动电阻器的电流是由可控硅开关，这是由模糊逻辑控制的环角控制。因此，制动电阻控制发电机的加速功率，使系统暂态稳定。利用EMTP（Electro-Magnetic Transients Program）进行了仿真。通过对平衡（3LG：三相接地）和不平衡（2LG：双线接地; 2LS：线对线; 1 LG：单线接地）故障的仿真结果，论证了模糊控制制动电阻的有效性，并研究了制动电阻的最佳电导值对提高暂态稳定性的作用。
The authors present the results of analyses about transient stability augmentation by the fuzzy logiccontrolled braking resistor. Following a major disturbance in electric power systems, variable rotor speed of the synchronous generator is measured, and then the current through the braking resistor is controlled by the ring-angle of the thyristor switch, which is controlled by the fuzzy logic. Thus, the braking resistor controls the accelerating power in generators and makes the system transiently stable. Simulations are performed by using EMTP (Electro-Magnetic Transients Program). Through the simulation results of both balanced (3LG: Three-phase-to-ground) and unbalanced (2LG: Double line-to-ground; 2LS: Line-to-line; and 1LG: Single lineto-ground) faults, the eectiveness of the fuzzy controlled braking resistor is demonstrated and the optimal conductance value of the braking resistor in enhancing the transient stability is investigated.