PV Inverting Grid-connected Automation Monitoring System

Jiuquan Dongdongtan 109MW photovoltaic project construction is located ?In 15km southeast of Suzhou District, Jiuquan City and about 10km north of G312 National Highway.The township secondary roads are distributed around the photovoltaic power generation demonstration base and the transportation is convenient. The site area is successively lowered from the southwest to the northeast with open and flat terrain. The project mainly consists of Chaoyang 50MW, Sanyang 50MW and 9MW.

The project uses a total of 95 sets of MIEN6208-2S-SC20-AD220?and?3 sets of MIEN6024-8S-SC20-A220.It?has?9 ring networks, each switch corresponds to an outdoor room, a collector, a box, two DC power distribution cabinet ,two inverters?and several combiner boxes;?and some of the networks?have outdoor environmental monitoring equipment.The transmission between outdoor?collector and bottom equipment?is RS-485 signal?, between switch and collector?is Ethernet, between MIEN6208 and MIEN6024?is optical fiber , between MIEN6024 and protocol converter?is network cable ,and then respectively connected to the backstage switch of the control center.

System Structure Diagram