A New Approach to Performance Qualification of Smart Grid Voltage and Current Sensor Systems

With increased integration of distributed renewable energy resources, new types of loads such as EVís, and other grid changes occurring, more instrumentation and monitoring is required in the grid to ensure its reliable operation. This grid transformation has created a demand for accurate voltage and current measurement systems having improved cost and operational performance characteristics when compared to systems with conventional technology such as instrument transformers. New types of voltage and current sensors, also known as non-conventional or low-power instrument transformers, offer significant advantages and opportunities for application within the evolving grid. However, due to their fundamentally different operating principles, their measurement performance may be negatively impacted by factors that are easily overlooked. This is especially true when new measuring systems comprised of sensors, signal transmission means, and an intelligent electronic device (IED) are assembled and installed in operating environments in which they have not been tested. This session will focus on a new standardized approach to qualifying the overall measurement performance of such systems across a range of physical operating conditions. Presentations in this panel session: - Performance and operational issues in sensor systems (23PESGM4017) - Uncertainty considerations & "Conditional Accuracy" for more predictable performance (23PESGM4018) - Lab and standardized testing to validate sensor and sensor systems (23PESGM4019)