What are the applications of PMU?
Typical applications of PMUs in distributed networks include state estimation, dynamic supervision, instability prediction and control, protection and fault location, and power quality monitoring.
What are the applications of PDC in smart grid?
Receives and time-synchronizes phasor data from multiple phasor measurement units (PMUs) to produce a real-time, time-aligned output data stream. A PDC can exchange phasor data with PDCs at other locations.
Why is PMU important?
Each PMU provides phasor information (both magnitude and phase angle) in real time of the concerned cluster. This is an advantageous methodology where phase angles are referred to global reference time. This helps to capture wide area snap- shot of power system and enables real time stability and instability analysis.
How many PMUs are there in India?
The Power System Operation Corporation (POSOCO) has taken initiative and implemented a pilot project wherein nine phasor measurement units (PMUs) along with one phasor data concentrator (PDC) were commissioned in the Northern Region (NR) of India.
What is a phasor data concentrator?
Phasor Data Concentrators (PDCs) are devices which aggregate and time synchronize (or time align) phasor data streamed from Phasor Measurement Units (PMUs) from across the grid. A PDC is a critical link be-tween the PMUs which collect the phasor data and the synchrophasor applications which use the data.
What is the application of phasor measurement unit in real time monitoring and control of smart grid?
A phasor measurement unit (PMU) is a device used to estimate the magnitude and phase angle of an electrical phasor quantity (such as voltage or current) in the electricity grid using a common time source for synchronization.
What does a PMU measure?
A phasor measurement unit (PMU) measures the phasor values of current and voltage. These values get a high precision time stamp and together with the values of power frequency, power frequency change rate and optional binary data that are also time stamped are transmitted to a central analysis station.
What is the use of phasor measurement unit?
What is enabled by smart grid?
A smart grid is an electricity network enabling a two-way flow of electricity and data with digital communications technology enabling to detect, react and pro-act to changes in usage and multiple issues. Smart grids have self-healing capabilities and enable electricity customers to become active participants.
