Micro Phasor Measurement Unit (μPMU) Placement for Maximum Observability in Smart Distribution Network

The accurate measurement of current phasors is crucial for the reliable and effective protection of microgrids. However, the presence of harmonics and variations in the fundamental frequency due to the integration of inverter-based resources (IBRs), can lead to errors in current phasor measurements in islanded microgrids. In this work, we propose a novel approach to current phasor measurement in microgrid protection that utilizes voltage-based fundamental frequency stabilization. The proposed method is based on the use of voltage measurements to synchronize a set of variable frequencies, and three-phase signals to track changes in the fundamental frequency and adjust the current phasor measurements accordingly. Simulation results demonstrate that the proposed method is effective in reducing errors in current phasor measurements caused by variations in the fundamental frequency, at the same time it can segregate between a fault and a tap load. The proposed method has the potential to enhance the performance of microgrid protection systems and ensure the reliable operation of microgrids.

show abstract

Smart Monitoring of Microgrid-Integrated Renewable-Energy-Powered Electric Vehicle Charging Stations Using Synchrophasor Technology

Hampannavar,

Mansani

2024

WEVJ

View full text Add to dashboard Cite

With the growing concern over climate change and energy security, the Government of India expedited enhancing the share of renewable energy (RE) derived from solar, wind and biomass sources within the energy blend. In this paper, a techno-economic and environmental analysis of a microgrid-integrated electric vehicle charging stations fueled by renewable energy is proposed for a typical area in the State of Karnataka, South India. The power transaction with the grid and the sell-back price to the national grid were investigated. Carbon emissions were also assessed, and 128,406 CO2 kg/Yr can be saved in the grid-connected mode. Also, in this work, different scenarios such as injecting active power, reactive power, and active and reactive power, and injecting active and absorbing reactive power to the grid are comprehensively assessed. Out of four types, type 3 (inject real and reactive power) provides significant reduction in power losses by up to 80.99%. The synchrophasor-technology-based monitoring method is adopted in order to enhance the microgrid system’s overall performance. The execution times for different cases with distributed generators (DGs) and electric vehicle charging stations (EVCSs) for conventional systems and micro-phasor measurement units (µPMU) were observed to be 19.07 s and 5.64 s, respectively, which is well accepted in the case of online monitoring.

show abstract

Micro Phasor Measurement Unit (μPMU) Placement for Maximum Observability in Smart Distribution Network

Cited by 3 publications

References 19 publications

Distribution PMU Placement Strategy for Critical Infrastructure Observability

Distribution PMU Placement Strategy for Critical Infrastructure Observability

Voltage-Based Frequency Synchronization for Phasor Measurements in Microgrid Protection

Smart Monitoring of Microgrid-Integrated Renewable-Energy-Powered Electric Vehicle Charging Stations Using Synchrophasor Technology

Contact Info

Product

Resources

About