| Summary: | 碩士 === 中原大學 === 電機工程研究所 === 97 === Abstract
The power quality in the industry distribution system becomes deteriorated due to harmonic pollution. Many researches have been proposed for investigating the passive filter planning to reduce harmonic voltage distortion.
The harmonic currents, impedance, and voltage in a power system are non-deterministic in nature. If the installation of passive filetrs is made according to the worst of harmonic current scenario, the results may be inaccurate. In addition, this may cause extra expenses or not satisfy harmonic standard.
Considering the effects of time variations of harmonic current and impedance, this thesis presents a new approach for planning single-tuned harmonic passive filters in a power system with considering cumulant characteristics. In the proposed method, the quantitative parameters in cumulant are determined once any probability distribution is given. Next, we use the constrained programming model based on the 95% cumulative distribution function. The problem is solved by a Adaptive Dynamic Clone Selection Algorithm-based optimizer. The objective is to minimize the capacitor banks installation cost, while the harmonic standard limits are satisfied.
An 18-bus system is used as a test system for showing the applicability of the proposed method. The results are investigated for examining performance of the proposed method.
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