Power distribution network equipment utilization rate comprehensive assessment index system considering distributed power supply accessing

Abstract

The invention discloses a power distribution network equipment utilization rate assessment index system considering distributed power supply accessing. The index system comprises (1) different equipment utilization rate evaluation standards: the equipment limit load capability, the equipment safe load capability and the equipment economic operation range; and (2) power distribution network equipment utilization rate assessment indexes of three different time scales of "electric power-electric quantity-whole life cycle". With application of the assessment index system, the assessment considersthe equipment utilization rate of the regional power grid to which the distributed power supplies are accessed, and the equipment utilization situation is reflected from different time scales and different assessment standards so that whether equipment utilization is reasonable can be more comprehensively and fully reflected, the monitoring requirements under different application scenes can be met and thus the promotion measures for the power distribution network equipment utilization rate can be put forward in a targeted way. The solution for the problems that the assessment result of the present power distribution network equipment utilization rate assessment system is single and distributed power supply accessing cannot be comprehensively and fully reflected can be provided.

Description

technical field [0001] The invention relates to the field of power distribution systems, in particular to a distribution network equipment utilization evaluation index system considering distributed power access. Background technique [0002] Medium-voltage equipment is an important carrier for carrying and transmitting electric energy in the distribution network. The degree of its utilization not only determines whether the medium-voltage distribution network can efficiently and environmentally friendly transmit and distribute electric energy, but also affects the economic investment of the network provincial companies and the country. How many. Under the general situation of energy saving and emission reduction, maximizing the use efficiency of existing equipment, reducing or delaying current investment and new investment demand is of great significance to improving the quality of power grid development and economic benefits of enterprises, and promoting the sustainable de...

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Problems solved by technology

[0005] The purpose of the present invention is to construct a distribution network equipment utilization comprehensive evaluation index system that considers distributed power sources, because the evaluation results of the existing distribution network equipment utilization evaluation system are single and cannot fully reflect the distributed photovoltaic access. problem offers solution

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