Abstract
Harmonic evaluation in power system planning and operation is the key to the control of harmonic level in power grids. In order to prevent the level of harmonic voltage, for large and medium-sized non-linear grid access to the grid, in the power system planning in accordance with the relevant standards and regulations for harmonic assessment. In actual operation, it is also necessary to evaluate the harmonics voltage and the user’s harmonic emission. Based on the harmonics standard and related regulations of our country and the actual situation of China’s power grid development, this paper discusses the challenges of harmonic evaluation under the current grid development, including the limitation of harmonic voltage and responsibility, harmonic current limit, measurement evaluation and other issues for the development of China’s harmonic standards and evaluation methods to provide a reference.
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