Distributed photovoltaic access grid comprehensive evaluation system and method

Abstract

The invention discloses a distributed photovoltaic access grid comprehensive evaluation system and method. The system comprises a database module, a reliability evaluation module, a grid loss evaluation module, an equipment utilization rate evaluation module, a power quality evaluation module and a distributed photovoltaic access grid comprehensive evaluation module. The system can realize functions of reliability index calculation, grid loss index calculation, equipment utilization rate index calculation and power quality index calculation, and calculates a comprehensive evaluation score according to a configured weight, and evaluates influences imposed on a grid by distributed photovoltaic access. The system disclosed by the invention replaces a tedious manual calculation and evaluation process, and can comprehensively evaluate the influences imposed on the grid by the distributed photovoltaic access, thereby providing help for designing and decision-making of distributed photovoltaics.

Description

technical field [0001] The invention relates to the technical field of distributed photovoltaics, in particular to a comprehensive evaluation system and method for distributed photovoltaics connected to a power grid. Background technique [0002] With the rapid development of today's global economy, the demand and consumption of energy in various countries are increasing, the supply of traditional energy is in short supply, and the energy crisis is becoming increasingly prominent. The rapid economic development has brought about the deterioration of the ecological environment such as air pollution, soil pollution and water pollution. Therefore, the development and utilization of renewable new energy is an urgent task and the only way for the sustainable development of our country and the world. [0003] As a renewable green energy, solar energy is inexhaustible, pollution-free, and low-cost. It is recognized as one of the most important new energy sources in the 21st centur...

AI Technical Summary

Problems solved by technology

The output power of distributed photovoltaic power generation is affected by natural conditions, and has strong randomness and volatility. The traditional distribution network evaluation method is no longer applicable, and the distribution network model and algorithm containing distributed photovoltaic power generation need to be re-established. Research

[0005] At present, the evaluation methods for distributed photovoltaic power generation access to distribution networks are often limited to the calculation and analysis of unilateral indicators, and there are no mature comprehensive evaluation standards and tools.

In actual engineering, the evaluation process often takes a long time, the indicators considered are not comprehensive enough, and the evaluation results are not accurate enough

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