Background of the project
Jinan Hanjiayu VillageThe first demonstration project in a Taiwan area with high photovoltaic penetration rate. Because of its geographical location, it has abundant lighting resources. Residents in the area More than 80%of roofs are equipped with photovoltaic panels. In 2022 alone, the total photovoltaic power generation reached million kilowatt hours.
A large number of distributed photovoltaics are connected to the grid. While outputting clean power, they also bring problems such as overvoltage for low-voltage users and heavy overload on distribution transformers to the power distribution system in Taiwan. This affects the safe and stable operation of the power grid and also restricts the region. Photovoltaic capacity continues to grow.
Three major challenges
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Lack of effective database management solution: used to realize distributed energy storage aggregation control and fully support the scalenot less than 50 distributed energy storage solutions deployed at multiple points across regions, and for energy consumption, energy storage equipment, and batteries modules Status and other data are managed in a unified manner;
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Lack of collection of large amounts of time series data: It can satisfy hundreds of RK3568 domestic industrial computers, each one50,000< a i=3>Real-time collection and collection of time series data for a total of 5 million measuring points5 million measuring points;
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Lack of unified visual monitoring platform: It is necessary to have multi-dimensional data dashboard capabilities to achieve transparent management and reduce labor cost investment.
solution
The modular liquid-cooled energy storage system jointly developed by KaiwuDB and State Grid Shandong Integrated Energy Services Co., Ltd. was successfully used in the Jinan Hanjiayu Village High Photovoltaic Penetration Platform Demonstration Project. This system is equipped with based on KaiwuDB+KDP distributed cloud energy storage aggregation management platform and edge control equipment cloud-edge collaboration platform , including:
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Multi-mode database construction: KaiwuDB provides the capabilities of time series engine + relational engine to respectively analyze sensor data (temperature, humidity, etc.) and power data (battery, etc.) in energy storage scenarios. ), equipment control status value data (air conditioners, etc.) and other time series data, equipment information, business data and other relational data are unified and managed;
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Provide cloud-edge-end integrated architecture model:The edge side adapts to low-end industrial computers to realize data collection and short-term storage. Expand real-time analysis of local data;The central aggregation layer supports data aggregation and global analysis;Cloud deployment (data service platform), providing data and other capabilities realize the full application of data. API KDPRelational engine and integration KaiwuDB
KaiwuDB is deployed on the basis of edge computing servers, industrial computers, etc., making full use of the cloud-edge-end integrated architecture to achieve cloud-edge collaboration, real-time monitoring of the operation status of distribution transformer lines in the station area, and providing Peak shaving, valley filling, reactive power support, three-phase imbalance control and other services.
Customer benefits
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Device data is written at millions of records per second, with millisecond response. It reduces the time delay in energy storage scenarios and improves the comprehensive adjustment ability of energy storage cabinets to the power grid. The energy efficiency is improvedmore than 85%, charge and discharge conversion speed is less than 100ms;
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Achieved 100% consumption of distributed photovoltaics in Taiwan , and 100% qualified voltage quality< /span>; 99.999% power supply reliability increased to ,
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It can play a key supporting role in ensuring power supply for important users and seasonal demand for electricity load, achieving flexible capacity increase in Taiwan area 30% The above effectively delays the investment in distribution network construction.
In the future, KaiwuDB will be committed to the sustainable development of the distributed energy storage industry and provide enterprises with efficient and reliable database products and solutions. At the same time, KaiwuDB will continue to strengthen cooperation with industry partners to jointly create more feasible solutions for cloud-edge integrated construction for safe energy storage. Provide solid protection.
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