NYPA Pilots Advanced Power System Protection

摘要

Setting-less protection moves away from prior pattern-recognition.to a dynamic representation of the protection zone. Since the early days of electric power systems, protection has been essential for the operation and safeguarding of power system assets as well as the safety of its users. Developed for the out-of-step protection of generating units, the first system protection concept was based on impedance relays. Subsequently, wide-area measurements were used for systemwide monitoring and protection. Special protection schemes typically use precomputed scenarios and arm the system when these scenarios materialize, and the relays respond accordingly. This approach can be classified as a pattern-recognition approach.