基于用户-配变功率平衡关系的高比例户用光伏户变关系模型研究

Research on the Household Variation Relationship Model of High Proportion Household Photovoltaics Based on the Power Balance Relationship Between User and Distribution Transformer

目前,分布式光伏发展迅猛,户用光伏系统在低压配电网中的并网数量增长迅速,需建立准确的互变关系为线损计算提供必要的支持。但传统方法很难保证户变关系记录档案更新的灵活性与有效性。对相关文献进行查阅,结合用户-配变功率平衡关系,建立高比例户用光伏的低压户变关系的多元线性回归模型,结合光伏时序识别、电压聚类的优化目标函数等技术,对模型准确率进行优化与提升,强化户变关系的准确率,以期为户用光伏工作的高质量开展提供技术支持。

At present,distributed photovoltaics is developing rapidly,and the number of household photovoltaic systems connected to the grid in the low-voltage distribution network is growing rapidly.It is necessary to establish an accurate interconversion relationship to provide necessary support for line loss calculation.However,it is difficult for traditional methods to ensure the flexibility and effectiveness of updating the records.The study reviews related literature,combines the user-distribution power balance relationship,establishes multiple linear regression model of low-voltage household variation relationship of high-proportion household photovoltaics,optimizes and improves the model accuracy rate,and promotes the accuracy rate of household variation relationship by combining photovoltaic timing identification and optimization objective function of voltage clustering,etc.,so as to provide technical support for the high-quality development of household photovoltaics work.