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May 27,2026
In low-voltage power supply and distribution system design, reactive power compensation capacitor banks and harmonic filter banks are commonly used devices to improve the operating conditions of the power grid. The installation sequence of these two on the busbar directly affects the harmonic mitigation effect, the reactive power compensation operation status, and the service life of the el...
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May 29,2026
In the realm of power systems, reactive power compensation is an indispensable topic. Proper selection leads to lower electricity costs and stable equipment operation; incorrect choices may result in costly complications. Faced with various devices such as capacitor bank, SVGs, and AHFs on the market, how should one make the right choice? This article provides a clear and straightforward explanati...
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Jun 01,2026
In the field of power quality management, most industrial operators focus heavily on conventional issues such as fundamental frequency voltage fluctuation and integer harmonic distortion. While these common power disturbances are well-monitored and mitigated in most modern power grids, interharmonic distortion remains a niche, underrated, and highly destructive power quality problem for sophistica...
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Jun 05,2026
Following the large-scale centralized integration of new energy into the grid, the stable operation balance of traditional power grids has been disrupted. Various electrical issues such as voltage fluctuations, harmonic pollution, frequency deviations, protection malfunctions, and three-phase imbalances have erupted intensively. These issues not only cause damage to end-user electrical equipment a...
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Jun 15,2026
Analysis of the reasons for the decrease in power factor on the power supply side after the AHF only performs harmonic filtering: I. Increased total apparent power naturally leads to a decrease in the overall power factor. Power factor λ = P/S. Active power P is determined only by the fundamental active power; harmonics do not contribute. After filtering, the fundamental reactive power remains unc...
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Jun 24,2026
When a sinusoidal voltage is applied to a non-linear circuit, both the resulting current and the voltage waveform become non-sinusoidal. Through Fourier series decomposition of these non-sinusoidal waves, the component with a frequency equal to the power system frequency is identified as the fundamental wave, while components with frequencies higher than the fundamental are termed harmonics. A vas...
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Jun 26,2026
The complete process of electricity generation and use can be clearly divided into four main stages: power generation → transmission → distribution → consumption. First, power plants convert various primary energy sources (such as coal, hydropower, wind power, nuclear power, and solar energy) into electrical energy. Then, the large amount of electricity generated by the power plants is efficiently...
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