A New Fuzzy-Based Representative Quality Power Factor for Nonsinusoidal Situations
A New Fuzzy-Based Representative Quality Power Factor for Nonsinusoidal Situations
复制标题
非正弦情况下一种新的基于模糊的代表性质量功率因数
DOI：
10.1109/tpwrd.2007.916001
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发表时间：
2008
影响因子：
4.4
通讯作者：
M. El
中科院分区：
文献类型：
--
作者：
W. Morsi;M. El
在正弦情况下，功率因数定义是唯一和富有表现力的。然而，在非正弦和/或非线性负载情况下，提出了不同的功率因数来表示这些情况。本文引入了一种新的基于模糊的代表性质量功率因数来表示这些功率因数。针对线性、非线性、正弦、非正弦等不同情况，分别考虑滞后功率因数和超前功率因数，提出了具有代表性的质量功率因数RQPF。结果表明，新的RQPF具有很强的表现力，在各种情况下都能准确地反映现有的功率因数。考虑到模糊系统的简单性、易用性、灵活性、快速性和处理不精确和不确定性的能力等优点，在这些情况下，该系数可用于电能质量评估、电能质量缓解技术的成本效益分析以及计费目的。
In sinusoidal situations, power factor definition is unique and expressive. However in nonsinusoidal situations and/or nonlinear load different power factors are proposed to express these situations. In this paper a new fuzzy based representative quality power factor is introduced to represent these power factors. The proposed representative quality power factor (RQPF) was applied to different cases, linear, nonlinear, sinusoidal, nonsinusoidal considering lagging and leading power factor. It is shown that the new RQPF is expressive and accurately represents the existing power factors in all cases and in all situations. Taking into consideration the advantages of the fuzzy systems such as simplicity, ease of application, flexibility, speed and ability to deal with imprecision and uncertainties, this factor can be useful for power quality evaluation, cost-effective analysis of PQ mitigation techniques, as well as billing purposes, in these situations.