用户友好配电系统规划方法的研究

Research on Programming Method of Customer Friendly Distribution Systems

在现代智能电网框架下,对用户友好配电网概念及其规划方法展开研究。针对配电系统拓扑结构改变时系统中扰动不确定性的问题,重点研究了不同规划方案下不同用户因设备故障引起的间接损失的评估方法,并将该损失计入用户损失中,以此为基础进行系统规划。实际中用户可能经受的间接损失与系统扰动和用户设备电压耐受能力的兼容性有关,分别用最大熵方法和模糊法评估系统扰动和用户设备对扰动耐受能力的不确定性。对RBT Bus2配电系统的仿真结果证明,考虑用户间接损失后规划的配电系统能保证综合成本最低。

Under the framework of the modern smart grid,the concept and the planning method of customer friendly distribution systems are proposed.Due to the uncertain disturbance in the systems during the change of network topology of distribution system,the assessment of potential losses caused by customers′ equipment failures under possible disturbance of different planning schemes is proposed.The planning method based on customer loss including indirect loss is correlated with the compatibility between system disturbance and voltage tolerant level of customer equipment.Based on maximum entropy principle and fuzzy method,the uncertainty between system disturbance and customer equipment is evaluated.The simulation results of RBT Bus2 distribution system show that the distribution system planned after considering the customer indirect loss can guarantee the lowest comprehensive cost.