The effect of temperature rise of the fuzzy logic-controlled braking resistors on transient stability
The effect of temperature rise of the fuzzy logic-controlled braking resistors on transient stability
复制标题
模糊逻辑控制制动电阻温升对暂态稳定性的影响
DOI：
10.1109/tpwrs.2004.825828
复制
发表时间：
2004
影响因子：
6.6
通讯作者：
Junji Tamura
中科院分区：
文献类型：
--
作者：
Mohd. Hasan Ali;T. Murata;Junji Tamura
制动电阻是提高电力系统暂态稳定性的有力工具。在暂态稳定分析中，通常考虑制动电阻的固定值。然而，当制动电阻器工作时，电阻器材料的温度升高到环境温度以上，这最终导致电阻值增加。本文分析了多机电力系统中模糊控制制动电阻温升对系统暂态稳定性的影响。制动电阻计划与模糊控制器的性能相比，与传统的比例积分微分（PID）控制器。对系统不同点平衡和不平衡故障的仿真结果表明，模糊逻辑控制制动电阻的温升对多机电力系统的暂态稳定性影响很小或几乎没有影响。此外，发现模糊逻辑控制器的性能优于传统的PID控制器。因此，提出的模糊控制策略提供了一种简单而有效的方法，暂态稳定性的提高。
Braking resistor is a very powerful tool to improve transient stability in a power system. Usually, a fixed value of the braking resistor is considered for the transient stability analysis. However, when the braking resistor is in operation, temperature of the resistor material rises above ambient temperature which ultimately causes the resistance value to increase. This paper analyzes the effect of the temperature rise of the fuzzy logic-controlled braking resistor on the transient stability in a multimachine power system. The performance of the braking resistor scheme with fuzzy controller is compared to that of with conventional proportional-integral-derivative (PID) controller. Simulation results of both balanced and unbalanced faults at different points in the system indicate that the temperature rise of the fuzzy logic-controlled braking resistors has little or almost no effect on the transient stability of the multimachine power system. Moreover, it is found that the performance of fuzzy logic controller is better than that of conventional PID controller. Thus, the proposed fuzzy control strategy provides a simple and effective method of transient stability enhancement.