光伏发电系统模块间分相电流自适应控制技术  

Adaptive control technology of phase current between modules of photovoltaic power generation system

作　　者：周坤明 ZHOU Kunming(Oil and Gas Production Service Department,Southwest Exploration and Development Company,Kaxgar 844804,China)

机构地区：[1]塔西南勘探开发公司油气生产服务部,新疆喀什844804

出　　处：《中国高新科技》2024年第16期83-84,共2页

摘　　要：文章提出光伏发电系统模块间分相电流自适应控制技术,在兼顾变压器容量限制的情况下,充分利用其裕量输出的负序电流,在确保光伏发电完全出力的情况下,为单相牵引负载提供零序电流,减小电网接入点间的不对称性,从而在不需要相序隔离的情况下,实现光伏发电系统模块间分相电流自适应控制。实验结果表明,光伏发电系统模块间分相电流自适应控制技术能够有效控制输电网的三相电流的平衡,通过该技术可以使光伏发电系统中各个分相的电流达到相对平衡,从而提高系统的效率和稳定性。This paper is now proposed photovoltaic power generation system module phase current adaptive control technology.In the case of taking into account the capacity limit of the transformer,the negative sequence current of its margin output is fully utilized to provide zero sequence current for the single-phase traction load while ensuring the full output of the photovoltaic power generation,reducing the asymmetry between the grid access points,so as to realize the adaptive control of the phase current between the photovoltaic power generation system modules without phase sequence isolation.Experimental results:The phase current adaptive control technology between PV power generation system modules can effectively control the balance of the three-phase current in the transmission network,and the current of each phase in the PV power generation system can achieve relative balance through this technology,so as to improve the efficiency and stability of the system.

关 键 词：光伏发电系统 电流控制 自适应控制 分相电流 

分 类 号：TM615[电气工程—电力系统及自动化]