一种新型配电网同步量测装置的研制

Development of A New Synchronous Measurement Unit for Distribution Network

为解决配电网中传统的配电网检测装置无法从宏观上观察和分析配电网异常的分布传播特性问题,利用以数据融合为理论基础的参数识别方法,研制了一种基于时序数据相关性的配电网同步量测装置。利用新型感应取电装置,辅以超级电容进行供能;利用罗氏线圈采集线路电流,通过采用空间电容分压的原理测量导线对地相电压,并对其进行采集。选用一种超长距低功耗数据传输LORA无线传输技术来满足数据采集与处理需求。现场试验结果证明了该装置的实用性和量测供能的准确性。

For the traditional detection device in distribution network,it is impossible to observe and analyze the distribution and propagation characteristics of the distribution network anomaly from a macro perspective.The paper develops a synchronous measurement unit for the distribution network based on time series data correlation with a data fusion based parameter identification method.The unit uses a new induction power extraction device supplemented by a super capacitor for energy supply,as well as the Rogowski coil to collect the line current,and measures the phase voltage to ground according to the principle of stray capacitance voltage divider and collects the voltage signals.What is more,an ultra-long-range and low-power data transmission LORA technology is adopted by the unit to meet the data acquisition and processing requirements.The results from field experiment prove the practicability of the unit and the accuracy of measuring the energy supply.