Data of an autonomous microgrid with just EV load and PV generation

A real-world example of an autonomous solar microgrid in island mode is the microgrid in Ilmenau, Germany (50.68327945573772, 10.93832428838313), installed as part of the Sofie project to charge electric vehicles. The Project Sofie is supported by the Free State of Thuringia and the European Social Fund Plus. This document presents the data structure for the Sofie project. The available data are measured values of the microgrid and operating data of the charging park.  The available data covers five observation periods with the following published versions:

First Version: 2023-07-01T00:00:00 to 2023-12-31T23:59:5

Second Version: 2024-01-10T00:00:00 to 2024-06-26T23:59:59

Third Version: 2024-06-26T00:00:00 to 2024-12-31T23:59:59

Fourth Version: 2025-01-01T00:00:00 to 2025-06-30T23:59:59

Fifth Version: 2025-07-01T00:00:00 to 2025-11-30T23:59:59

The data is collected for 6 users in the period, whereby each user is assigned a fixed id. The fixed id for each user can be found in the id-tag in the table transaction_start with 14 digit number.  Each wallbox of the 8 wallboxes has a fixed id from wb1 to wb8. The microgrid is powered by a solar system the microgrid includes energy storage with a capacity of 38.4 kWh. The batteries are integrated into the AC microgrid via inverters. The maximal Power is mentioned as 18 kW.

德国伊尔梅瑙（坐标：50.68327945573772, 10.93832428838313）的微电网是孤岛模式自治太阳能微电网的真实应用案例，该微电网作为索菲（Sofie Project）项目的组成部分部署，用于为电动汽车提供充电服务。索菲项目得到了图林根自由州与欧洲社会基金Plus（European Social Fund Plus）的资助。本文档旨在阐述索菲项目的数据架构。本数据集包含两类核心数据：微电网的实测参数与充电站运行数据。

可用数据覆盖五个观测周期，各周期对应如下发布版本：
1. 第一版：2023-07-01T00:00:00 至 2023-12-31T23:59:5
2. 第二版：2024-01-10T00:00:00 至 2024-06-26T23:59:59
3. 第三版：2024-06-26T00:00:00 至 2024-12-31T23:59:59
4. 第四版：2025-01-01T00:00:00 至 2025-06-30T23:59:59
5. 第五版：2025-07-01T00:00:00 至 2025-11-30T23:59:59

本数据集在对应周期内为6名用户采集数据，每位用户均分配有唯一固定ID。用户的固定ID可在transaction_start表的id字段中查询，为14位数字。该充电站共配备8台壁挂式充电桩（wallbox），每台充电桩的固定ID依次为wb1至wb8。

该微电网由太阳能系统供电，内置容量为38.4 kWh的储能装置。储能电池通过逆变器接入交流微电网，系统最大功率可达18 kW。