摘要 :
This paper provides a concise review on the main developments and conclusions in the area of power system harmonic analysis. Commonly accepted methods for conducting harmonic studies have been summarized. The area of harmonic anal...
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This paper provides a concise review on the main developments and conclusions in the area of power system harmonic analysis. Commonly accepted methods for conducting harmonic studies have been summarized. The area of harmonic analysis is still a very fertile ground for exploration. With the help of four example research topics, the paper also demonstrates possible future directions of power system harmonic analysis research.
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摘要 :
This paper provides a concise review on the main developments and conclusions in the area of power system harmonic analysis. Commonly accepted methods for conducting harmonic studies have been summarized. The area of harmonic anal...
展开
This paper provides a concise review on the main developments and conclusions in the area of power system harmonic analysis. Commonly accepted methods for conducting harmonic studies have been summarized. The area of harmonic analysis is still a very fertile ground for exploration. With the help of four example research topics, the paper also demonstrates possible future directions of power system harmonic analysis research.
收起
摘要 :
This paper provides a concise review on the main developments and conclusions in the area of power system harmonic analysis. Commonly accepted methods for conducting harmonic studies have been summarized. The area of harmonic anal...
展开
This paper provides a concise review on the main developments and conclusions in the area of power system harmonic analysis. Commonly accepted methods for conducting harmonic studies have been summarized. The area of harmonic analysis is still a very fertile ground for exploration. With the help of few example research topics, the paper also demonstrates possible future directions of power system harmonic analysis research.
收起
摘要 :
This paper provides a concise review on the main developments and conclusions in the area of power system harmonic analysis. Commonly accepted methods for conducting harmonic studies have been summarized. The area of harmonic anal...
展开
This paper provides a concise review on the main developments and conclusions in the area of power system harmonic analysis. Commonly accepted methods for conducting harmonic studies have been summarized. The area of harmonic analysis is still a very fertile ground for exploration. With the help of four example research topics, the paper also demonstrates possible future directions of power system harmonic analysis research.
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摘要 :
This paper presents a model to represent the harmonic generating characteristics of the thyristor controlled reactor (TCR). The model transforms the time domain nonlinear characteristics of the TCR into a frequency domain linear a...
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This paper presents a model to represent the harmonic generating characteristics of the thyristor controlled reactor (TCR). The model transforms the time domain nonlinear characteristics of the TCR into a frequency domain linear admittance matrix. The matrix couples the TCR harmonic voltages and currents and it does not vary with the harmonic conditions of the system. This paper presents the theoretical basis and analytical derivation of the model. Comparison of the matrix model results with the time domain simulation results is used to verify the validity and accuracy of the proposed model.
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This paper presents a new method to calculate the harmonic conditions for systems including switching-mode electronic nonlinear elements. The method is based on the harmonic coupled admittance matrix models for nonlinear elements....
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This paper presents a new method to calculate the harmonic conditions for systems including switching-mode electronic nonlinear elements. The method is based on the harmonic coupled admittance matrix models for nonlinear elements. A thyristor controlled reactor (TCR) was used as an example of the nonlinear element to demonstrate the performance of the proposed method. Since the admittance model for the nonlinear TCR element is linear, a linear network solution in harmonic domain is sufficient to obtain the harmonic results. This paper also investigates the impact of high harmonic voltage distortions on the accuracy of the coupled admittance model and the associated harmonic power flow results. An iterative method was proposed to improve the original linear network solution accuracy for cases involving very high amount of harmonic voltage distortions.
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摘要 :
This paper gives a concise overview on various well-accepted approaches to power system harmonic analysis. Modeling strategies for harmonic sources and network components are presented. Simulation techniques in the frequency, time...
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This paper gives a concise overview on various well-accepted approaches to power system harmonic analysis. Modeling strategies for harmonic sources and network components are presented. Simulation techniques in the frequency, time and harmonic domains are described. Their advantages, drawbacks and applicability are also discussed.
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摘要 :
It is well known that the presence of harmonics in electrical power grid, almost of them due to the use of electronic loads at residential, commercial and industrial plants, affects the behavior of the voltage and current, therefo...
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It is well known that the presence of harmonics in electrical power grid, almost of them due to the use of electronic loads at residential, commercial and industrial plants, affects the behavior of the voltage and current, therefore harming the life and functioning of equipment. In addition, the strong sensitivity of these electronic loads the sudden voltage variations generated during the transient operation of reactive compensation equipment can lead to the shutdown or the burning of these sensitive loads. This paper presents the effects and problems solutions related to harmonics and switching transient on application of equipment for power factor correction in two industrial systems where the loads are driven by frequency inverters.
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摘要 :
It is well known that the presence of harmonics in electrical power grid, almost of them due to the use of electronic loads at residential, commercial and industrial plants, affects the behavior of the voltage and current, therefo...
展开
It is well known that the presence of harmonics in electrical power grid, almost of them due to the use of electronic loads at residential, commercial and industrial plants, affects the behavior of the voltage and current, therefore harming the life and functioning of equipment. In addition, the strong sensitivity of these electronic loads the sudden voltage variations generated during the transient operation of reactive compensation equipment can lead to the shutdown or the burning of these sensitive loads. This paper presents the effects and problems solutions related to harmonics and switching transient on application of equipment for power factor correction in two industrial systems where the loads are driven by frequency inverters.
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摘要 :
The increase in penetration and usage of harmonic rich loads can be expected to contribute to increased harmonic levels in distribution systems. The combination of the unbalanced nature of residential loads and usage of wye-wye se...
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The increase in penetration and usage of harmonic rich loads can be expected to contribute to increased harmonic levels in distribution systems. The combination of the unbalanced nature of residential loads and usage of wye-wye service transformers means one can expect to see a continued increase in third harmonic levels in utility distribution systems. Also, the harmonic impact can be further exacerbated by the presence of reactive compensation in the form of capacitor banks on some feeders. This paper focuses on real-world problems related to excessive third harmonic levels in utility systems and the ways to address them. A real world case study that dealt with the failure of metal-halide lighting in a sports stadium at a public school due to excessive third harmonic levels in a utility feeder serving the load is presented. Several potential solutions to solve the problem were studied and the most suitable one was identified.
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