分布式发电并网运行对配电网可靠性的影响研究.pdfVIP

33 2 V o.l 33, No. 2 2010 4 S ichuan E lect ic Pow e T echnology Ap . , 2010 , , , (, 610031) : 主要研究了分布式发电并网运行对配电网可靠性的影响, 考虑当前配电网元件和负荷 始参数的不确定性, 采用区间算法计算分布式电源并网运行时的可靠性指标以 一个简单的配电网为模型, 得出含 DG 的配电网可靠性 指标的计算公式以 IEEE- R BT S Bus 6 测试系统为算例, 分别比较分布式电源的未接入看成额定容量的发电机以 及有多 个运行状态的发电机组等情况, 来分析不同模型对配电网可靠性的影响, 并验证分布式发电并网运行在改善 电网可靠性方面的作用 : ; ; ; A b stract: T he mi pact of dist ibuted gene ation ( DG) pa a lle l ope ation on the e liab ility of d ist ibution newt o k is studied. Conside ing the unce ta inty of o ig inal pa am ete s in bo th com ponents and loads of dist ibution system, the ind ices fo the e l-i ab ility evalua tion of dist ibution netwo k w ith DG pa allel ope ation based on the inte va l compu tation a e ca lculated. T ak ing a smi ple dist ibution system fo m ode l, the fo mu las fo the e liability eva luation of dist ibution netwo k w ith DG a e obta ined. T ak ing RBT S 6- bus d ist ibution system fo examp le, the mi pact of d iffe entm ode l on the e liab ility of dist ibution netwo k is ana ly zed by compa ing w ith the dist ibuted gene ation w hich is not sw itch ing in, the gene ato s t ea ted as hav ing a ted capac ity as w e ll as the gene ato s w ith m ultip le ope ating conditions, thus the effect ofDG pa a llel ope ation in mi p ov ing the e liab ility of d ist ibu tion netwo k is ve ified. K ey w ords: inte val a lgo ithm; d ist ibuted gene ation ( DG); pa a lle l ope a tion; e liab ility ev aluation : TM 732 : A : 1003- 6954( 2010) 02- 0031- 03 0