Implementing real-time state estimator for microgrids

• Main Author: Rhesa Mulyadi.
• Other Authors: Gooi Hoay Beng
• Format: Final Year Project
• Language: English
• Published: 2011
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Electric power
• Online Access: http://hdl.handle.net/10356/46214
• Institution: Nanyang Technological University

State Estimation (SE) is a function, used to identify the current operating state of the system accurately and efficiently, as well as monitoring operational constraints on quantities such as transmission line loadings of bus voltage magnitudes. Introduction of the state estimation function broadened the capabilities of the SCADA system computers, leading to the establishment of the Energy Management Systems (EMS), which would now be equipped with, among other application functions, an on-line State Estimator (SE). [1] In this project, the existing Phase Measurement Units (PMUs) state estimation system in Laboratory of Clean Energy Research (LaCER) within Nanyang Technological University, is made “smarter” by equipping it with an automatic function which let the program run with the best possible algorithm to be used for the different possible systems. The addition of Offline function is added to give specific readings in any case further upgrading of the system is required without the need of risking the hardware appliances from malfunctioning due to faulty software. Last but not least, Phasor Current Measurement function is added to the current Weighted Least Square (WLS) algorithm, making it more versatile for adoption in a different system in the future.