分布式电源并网的综合效益分析模型

Comprehensive benefits of distributed generation and its quantitative models

分布式电源具有环境污染小、能源利用率高等优点,其并网会带来可观的经济效益。本文分析了分布式电源并网对电力系统的影响,建立了分布式电源并网的效益量化模型,定量分析了并网后线损、用户购电费、环境成本、停电损失、能源税等方面产生的变化,通过算例论证了配电网合理并入分布式电源带来的综合效益,为并网发电提供科学参考。

Distributed generation has the advantages of low environment pollution and high uti-lization efficiency, Grid-Connected DG will bring about considerable economic benefits. This paper has analyzed the influence of Grid-Connected DG on power system, establised its benefit quantization model and analyzed the changes in line losses, power purchase expenses, environ- mental costs, outage cost and energy tax. The calculation example has demonstrated that DG legitimately connected to the distribution networks will bring comprehensive benefits, it pro-vides a scientific reference for the development of DG.