Cave Tutou built a new power system at Luxi Island Township -level and township -level power system towards the "double carbon" journey of the East China Sea

Recently, employees of the Power Supply Company of Dongtou District, Wenzhou City, Zhejiang, Zhejiang, came to Luxi Township to conduct inspections on the distributed photovoltaic grid -connection project of 500 kW of catfish reef.

It is understood that in 2014, the State Grid Co., Ltd. launched a grid -connected micro -network demonstration project on Luxi Island. This is a research demonstration project of the National 863 Plan "Research and Development of Microex Networks with distributed power supply". Through the establishment of 35 kV Luxi transformation power stations and 10 kV Luxi micro -website on the island powered by.

The micro -grid solves the daily electricity problem of Luxi Island, but in the face of the multiple weather such as the island typhoon, the power supply company of the Dongtou District is focusing on creating the island's characteristic "power -free power grid". Since 2021, the State Grid Wenzhou Dongtou District Power Supply Company has actively explored the development model of the new power system island power grid, combined with the experience and foundation of Luxi Island Micro Power grid, and based on the coordination and interaction of "Yuanhe Dutch Storage" as a key measure to promote the township and township level of Luxi Island Construction of new power system.

In May of this year, Luxi Island realized the first "one -click re -power" in the province, that is, if the power grid failure caused by the power grid caused the entire network to lose power, it can be controlled by the intelligent "one -click re -power" control. , Realize fast compound power, micro -network operate independently. Utilizing the cloud -side coordinated integrated regulation platform built by Luxi Island and Dongtou Island, the regulation center on this island can also operate "one -click re -power" remotely. In addition, the accurate control strategy of the main stations of the micro -grid stations can be further refined, which can achieve comprehensive coordination and control of micro -network system source network loads and comprehensive coordinated control at various operating methods to improve the utilization rate of clean energy.

So where is the "new" new power system "new" in Luxi Island Township?

The "source" head is cleaner. At present, there are two 780 kW fabrics and 300 kilowatt solar photovoltaic power fields on the island. At the same time, a 400 -kilowatt -kilowatt -mountain flat village distributed photovoltaic photovoltaic photovoltaic photovoltaic photovoltaic photovoltaic photovoltaic photovoltaic is built in a 500 -kW catfish reef distributed photovoltaic photovoltaic. According to the roof area, only the residential side can install the photovoltaic capacity of 13.8 MW in the future.

Electric "nets" are smarter. Through upgrading and transformation of the micro grid, "one -click re -power" is achieved. Once the grid failure on the island causes the entire network to lose power, the voltage from the re -power instruction to the stable voltage and the power supply is stable. The regulation center on the island of Dongtou can also be remotely operated.

It is more flexible to negative "lotus". The Power Supply Company of Dongtou District has launched the construction of all -electric islands in Luxi Township. In 2021, with the support of the Luxi Township government, the island completed 280 full -electric kitchen renovation. Public transportation on the island uses electric vehicles. The island is transporting 2 electric vehicle charging pile charging points with electric vehicles V2G (vehicle to the power grid). The reconstruction conditions are expected to achieve an anti -charge application load of 0.8 MW. In addition, companies on the island joined the power grid resource pool as a "one -click response" as a load resource to relieve the pressure of power shortage through the flexible interaction of the network and improve the security of the power grid.

"Storage" can be more flexible. The capacity storage battery capacity on the island is 4,000 kilowatt -hours, which can perform the elastic running mode of "night charging day". When necessary, it can be transformed into a "charging treasure" to meet the electric power supply that maintains three days when Luxi Island is separated from the main network. Essence At the same time, as a stable flexible power supply, it can effectively balance the system instability of a large amount of new energy grid.

At present, Luxi Island has built a "elastic" township -level new power system. It is an important part of a distributed smart grid under construction as a "elastic" and self -healing micro -grid. The Power Supply Company of Dongtou District will also use Luxi Island as a template to build more demonstration scenarios for townships and villages and villages, and promote the construction of new power systems in village, townships, districts, and counties.

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