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首页> 外文期刊>International journal of electrical power and energy systems >A new design of dual mode Type-II fuzzy logic load frequency controller for interconnected power systems with parallel AC-DC tie-lines and capacitor energy storage unit
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A new design of dual mode Type-II fuzzy logic load frequency controller for interconnected power systems with parallel AC-DC tie-lines and capacitor energy storage unit

机译：具有并联AC-DC联络线和电容器储能单元的互连电力系统双模式II型模糊逻辑负载频率控制器的新设计

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A new design of dual mode Type-II fuzzy logic load frequency controller (DMT-IIFLC) for interconnected power systems with parallel AC-DC tie-lines and capacitor energy storage unit (CES) is proposed in this paper. Any optimum controller selected for load frequency control of interconnected power systems should not only stabilize the power system, but also reduce the system frequency and tie-line power oscillations and settling time of the output responses. In general proportional plus integral controllers are used for loadfrequency control but it does not eliminate the conflict between the static and dynamic accuracy. This dispute may be broken up by using the principle of T-IIFLC to utilize expert knowledge and being adaptive in nature. The dual-mode concept is incorporated in the proposed controller to improve the system performance. A DC link is connected in parallel with AC tie-line to stabilize the frequency of oscillations. In summation, the CES unit is found to be advantageous for secondary control in the power system and keeps the power quality with the distributed power resources. The CES, which are not aged to the frequent charging and discharging, has been a quick response and outstanding function during overload conditions. The system performance of the proposed controller have improved significantly when compared with PI and T-IFLC. It is also found to be less sensitive to the changes in the system parameters and also robust under different operating modes of the system. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文提出了一种新的双模式II型模糊逻辑负载频率控制器（DMT-IIFLC）设计，该系统用于具有并联AC-DC联络线和电容器能量存储单元（CES）的互连电力系统。为互连电力系统的负载频率控制选择的任何最佳控制器，不仅应稳定电力系统，而且应减少系统频率和联络线电力振荡以及输出响应的建立时间。通常，比例加积分控制器用于负载频率控制，但不能消除静态和动态精度之间的冲突。通过使用T-IIFLC的原理来利用专家知识并具有适应性，可以解决该争端。提出的控制器中采用了双模式概念，以提高系统性能。直流回路与交流联络线并联连接，以稳定振荡频率。总而言之，发现CES单元对于电力系统中的二次控制是有利的，并且利用分布式电力资源来保持电力质量。 CES不会因频繁的充电和放电而老化，它在过载情况下具有快速响应和出色的功能。与PI和T-IFLC相比，建议的控制器的系统性能已得到显着改善。还发现它对系统参数的变化不太敏感，并且在系统的不同操作模式下也很健壮。 （C）2016 Elsevier Ltd.保留所有权利。

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