Design of a Distributed Signal Processing Unit for Transmission Line Protection in a Centralized Substation Protection Architecture [Elektronisk resurs]

• Travelling-wave and time-domain-based protection functions provide significant response time improvements over conventional phasor-based protection functions in power systems. These types of protection functions require very high sampling rates in the order of several hundreds of kHz. This paper proposes a novel centralized substation protection architecture (CPC) based on distributed signal processing units (DSPU) that enables the deployment of these high sampling rate applications in digital substations utilizing an Ethernet-based process-level network. The design of the DSPU is elaborated, and its signal processing algorithms are discussed. Moreover, the performance of the DSPU is analysed through dynamic tests and verified through a numerical electromaanetic transient simulation. 

Ämnesord

Engineering and Technology  (hsv)

Electrical Engineering, Electronic Engineering, Information Engineering  (hsv)

Teknik och teknologier  (hsv)

Elektroteknik och elektronik  (hsv)

Electrical Engineering  (kth)

Elektro- och systemteknik  (kth)

Genre

government publication  (marcgt)

Indexterm och SAB-rubrik

Finite impulse response filters

Substations

Signal processing algorithms

Harmonic analysis

Power system protection