华东交通大学学报
華東交通大學學報
화동교통대학학보
JOURNAL OF EAST CHINA JIAOTONG UNIVERSITY
2014年
3期
110-114,136
,共6页
傅军栋%喻勇%刘晶
傅軍棟%喻勇%劉晶
부군동%유용%류정
低压配电系统%三相不平衡%遗传算法%节能
低壓配電繫統%三相不平衡%遺傳算法%節能
저압배전계통%삼상불평형%유전산법%절능
low-voltage distribution systems%three-phase imbalance%genetic algorithm%energy-efficient
配电网三相负荷不平衡对供电电网以及变压器等电器都会造成不利的影响,致使低压电网的可靠性和稳定性差,线损增高。结合工程实例,利用遗传算法在Matlab环境下求解出一个最优的负荷分配方案,从而使三相不平衡电路尽量接近三相平衡状态,减小零序电流,减少配网损耗,使系统能够在更加经济的状态下运行,达到节能效果。
配電網三相負荷不平衡對供電電網以及變壓器等電器都會造成不利的影響,緻使低壓電網的可靠性和穩定性差,線損增高。結閤工程實例,利用遺傳算法在Matlab環境下求解齣一箇最優的負荷分配方案,從而使三相不平衡電路儘量接近三相平衡狀態,減小零序電流,減少配網損耗,使繫統能夠在更加經濟的狀態下運行,達到節能效果。
배전망삼상부하불평형대공전전망이급변압기등전기도회조성불리적영향,치사저압전망적가고성화은정성차,선손증고。결합공정실례,이용유전산법재Matlab배경하구해출일개최우적부하분배방안,종이사삼상불평형전로진량접근삼상평형상태,감소령서전류,감소배망손모,사계통능구재경가경제적상태하운행,체도절능효과。
The unbalanced three-phase load has negative effects on the power supply and the electrical appliances like transformers, resulting in poor low-voltage grid reliability and stability with higher line loss. Combined with engineering examples, this paper adopts the use of genetic algorithm in Matlab environment, establishing an opti-mal load distribution scheme to keep the three-phase unbalanced circuit close to the three-phase equilibrium state. It finds out that the system can be more economical in running state as the zero-sequence current decreases and distribution network losses are reduced.