分布式发电技术及其并网后的问题研究

A Study on Distributed Generation and Its Effects in Power System

为研究分布式发电技术(DG)及其并网的影响,介绍了分布式电源的概念、分类及特点,并从分布式电源的并网、电压调整、谐波问题、继电保护、孤岛等方面分析了分布式电源对电力系统的影响。分析表明:妥善解决好并网影响将有利于DG的更大发展,不仅能充分发挥DG的优点作为传统供电模式的一个重要补充,还将在能源综合利用上占有十分重要的地位。

For an in-depth study of the distributed generation （DG） and its effects on the power system connected, this paper presents the concept, classification and features of the DG, and studies its effects on the power system in terms of the connection with the power grid, voltage regulation, harmonics, relay protection and islanding phenomenon.Studies indicate that an appropriate approach and solution to address the connection of the DG with the grid helps further development of the DG. Under the suitable pattern, the DG as a key supplementary element to the traditional power supply can be made full use, and it can play an important role in the comprehensive utilization of energy resources.