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This paper presents an optimal design of the C-type passive filters for the effective utilization of the power cables under nonsinusoidal conditions based on maximization of the harmonic derating factor (HDF) of a power cable, where maintaining the load true power factor at an acceptable range is desired. According to IEEE Standard 519, the total harmonic distortions of the voltage and current measured...
In this paper, the widely recognised apparent power definitions, which are Arithmetic, Vector, IEEE standard, DIN standard apparent power definitions and the apparent power definition of Mayordomo and Usaola, are rigorously reviewed, and their abilities on the measurement of the system’s power transfer efficiency are analysed by using a specially derived apparent power, which is calculated in terms...
For non-sinusoidal single-phase systems, the classical apparent power has been divided into various components using different techniques. These power resolutions generally aim at to provide a tool for the accurate determination of the maximum power factor achievable with a passive compensator and to measure the load's nonlinearity degree. This paper presents a current decomposition-based methodology...
This study presents an overview on the apparent power definitions and power resolutions widely known in the literature. It is shown from the literature overview that there is a need for a power resolution, which can be used as a tool for the direct provision of the optimum compensation capacitor's power in unbalanced & nonsinusoidal systems. In addition to that, it is also mentioned that the modern...
In this paper, a power resolution presented in [1] is evaluated by considering optimum balanced capacitive compensation and harmonic producing load detection issues. The evaluation examples show that the power resolution can be employed to directly measure the optimum balanced capacitors bank's power and obtain some useful information on the harmonic source detection.
It is seen from the study [1] that there is a need for a power resolution, which can be utilized for the direct provision of the optimum compensation capacitor's power and give some useful information on the detection of the harmonic producing loads, in the literature. Accordingly, for nosinusoidal and unbalanced systems, a power resolution, which achieves these goals, is proposed in this paper.
In this paper, the validity of the single-point measurements methods and indices, which were proposed for harmonic source detection and sharing harmonic responsibility between utility and consumer, are investigated in a typical distribution system which consists of several critical load cases. A parametrical analysis by means of the variation of the utility side impedance's X/R ratio is also undertaken...
In recent years, the detailed modelling of power electronic devices and their behaviours on various system conditions are a great concern of the power industries and customers. One of the widely proliferated such devices is the triac controlled ac choppers. Although these types of devices have important application areas, their poor power factor is the main obstacle for the large scale implementation...
This brief communication addresses the case of a dc nonlinear load supplied with a perfectly constant instantaneous power. A careful analysis shows that this condition does not provide optimum transfer of electric energy .
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