Introducing the Electrical Data Recorder as a new capturing device for power grid analysis

Abstract

Power systems are facing fundamental changes concerning functionality and dynamics today. However, detailed data of the system are property of the suppliers or distributors and are not easily available to researchers at present. In order to understand the system dependencies we propose to derive state information by combining high-rate low-voltage time series captures at different locations together with a simulation model of the grid. We take the island network like KIT campus as our starting investigation site. In a first step we developed the Electrical Data Recorder (EDR), which is capable of recording three phase voltage time series at up to 25 kHz synchronously. All data are stored in a large scale database facility (LSDF) for subsequent usage. We intend to derive a simulation model from the comparison of the voltage characteristics to periodic smart meter measurements as the indication of the load status. In this article we introduce the new recording device and present first results.Index Terms-power system analysis, smart grid modeling, power network simulation, large scale data 1 Manuscript received August 3, 2012.Heiko Maass is with the Karlsruhe

Preparing the electrical data recorder for comparative power network measurements

“…Also, other capturing devices like network analyzers do not provide appropriate interfaces to continuously transfer the high rate transient captures to an external storage [3]. Therefore, we developed the EDR (Electrical Data Recorder) capturing device to get comprehensive access to the measurements [4]. The entire acquisition data is stored in a central database and advanced storage methods for big data analysis have been implemented.…”

Establishing a hardware-in-the-loop research environment with a hybrid energy storage system

“…Every electrical device within the smart home is monitored secondly and meters for power quality are monitoring the building's grid connection point. For this purpose the Electrical Data Recorder [12] provides high rate voltage time series. The building automation allows for remote control of lights and rolling shutters.…”