【摘要】 靠近负荷侧分布式发电DG(distributed generation)系统的接入对配电网电压有着多方面影响。文中给出了一种含分布式电源的三角形负荷分布模型,并且根据电路叠加定理提出了基于此模型的电压分布计算方法。结合具体算例,研究了含分布式电源的放射状链式配电网负荷节点电压变化情况,分析了分布式电源的电压调节作用。研究结果表明,含分布式电源的三角形负荷分布模型可以有效运用于配电网的电压分布计算中;分布式电源出力及位置变化直接影响着配电系统电压水平。更多还原

【Abstract】 Distributed generation(DG) connection near to load center has several kinds of serious potential impacts on distribution system.A triangle load distribution model including DG is presented in this paper,and the method of calculation on the voltage profile on the based of the circuit superposition principle is proposed.Through examples,this paper conducts study on voltage changes when DG is penetrated into radial feeders and DGs’ adjusting effects on the voltage.The results show that the triangle load distribution model is effective in voltage distribution calculation of distribution network,and DGs’ outputs and positions change directly affect the voltage level of the distribution system.更多还原