一种基于三端口能量路由的单级式光储并网系统及其高压穿越技术  

A SINGLE-STAGE PV-ESS GRID-CONNECTED SYSTEM BASED ON TRIPLE-PORT ENERGY ROUTING AND ITS HIGH-VOLTAGE RIDE-THROUGH SCHEME

作　　者：赵巍[1] 王雅坤[1] 滕甲训 孙孝峰[1] 朱艳萍[1] 王宝诚[1] Zhao Wei;Wang Yakun;Teng Jiaxun;Sun Xiaofeng;Zhu Yanping;Wang Baocheng(Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]燕山大学电力电子节能与传动控制河北省重点实验室,秦皇岛066004

出　　处：《太阳能学报》2022年第8期91-95,共5页Acta Energiae Solaris Sinica

基　　金：河北省重点研发计划(19214405D);国家自然科学基金(51677162);秦皇岛市科技计划项目(202005A013)。

摘　　要：该文提出一种具有高压穿越能力的基于三端口能量路由的单级式光储并网系统(PV-ESS)。光伏最大功率跟踪始终由三相变换器控制完成。多端口能量路由器可根据不同运行工况使储能灵活接入,平抑光伏输出,使得系统具有更高的效率。在电网高压故障下,通过储能装置抬升直流母线电压,从而使系统具有高压穿越的能力,可在电网高压状态下不脱网连续运行,直至故障恢复。This paper proposed a single-stage photovoltaic grid-connected system integrated energy storage system(PV-ESS)based on three-port energy routing with high voltage ride-through capability.The maximum power point tracking(MPPT)of PV is controlled by the three-phase AC/DC converter.The multi-port energy router can flexibly access energy storage according to different operating conditions,to stabilize the photovoltaic output,which makes the system more efficient.Under the power grid high voltage fault,the DC bus voltage is raised by the energy storage device,so that the system has the ability of high voltage ride-through,and can run continuously without disconnecting the grid under the high voltage state until the fault recovery.

关 键 词：电池储能 智能电网 光伏发电 电能路由 高压穿越 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]