The phasor measurement unit (PMU), commonly referred to as a synchrophasor, is a key piece of technology that helps electric grid operators better comprehend what really is going on throughout the massive grid. A phasor is a number that a PMU can measure. The phasor determines the amplitude and phase of a flow of AC voltage at a specific point on the power line. This information can even be used to compute the frequency periodicity of a message and assess the system’s health.
Wide voltage PMU, on the other hand, can supply up to Sixty measurements per second, but conventional SCADA systems only offer a single calculation every two to four seconds. Using the Global Positioning System (GPS), all PMU data is captured in real-time, giving wide voltage PMU a substantial advantage.
The basics of PMU
PMU technology provide Phasor data in real-time ( phase angle and magnitude) When obtaining a large area snapshot of the power system, it is preferable to relate to phase angle, there is a global reference time. Effective use of this technology can aid in the prevention of blackouts and a better understanding of the power system’s real-time behavior.
PMU Systems for High Voltage
In order to offer a broad area tracking system network, numerous PMUs have been placed across the electricity grid at crucial locations. A Phasor data concentrator in a central location takes data from broad voltage PMUs and synchronizes it before feeding this to the operational monitoring and data gathering system.
All phasor data samples at each PMU must be time-stamped and supplied in real-time for a WAMS network to be complete. GPS installed at the PMU site provides time synchronization between different PMUs. A PMU’s three main components are indeed the data gathering component, transmitter, and GPS receiver.
PMUs allow you to acquire a clear image of power quality across a vast area. An examination of the data reveals whether the power, voltage, and speed are within the set limits. The ability is used in a range of methods, including
- To improve the accuracy with which system conditions are modeled
- Grid stress and instability can be predicted and detected.
- To assist in the investigation of what caused the uproar after it occurred.
- To find out about inefficient practices.
- Congestion prediction and prevention
PMUs have been installed in electricity networks all around the world in recent years. They may also be used in some distribution grids. When paired with modern controllers, wide voltage PMUs enable SCADA systems to be substituted by someone that makes decisions and sends control signals autonomously.
These elements are supposed to make the integration of distributed power (DERs), bioenergy, and microgrids more efficient and robust. PMUs aid in the improvement of our grid’s dependability, resilience, and long-term viability.
High voltage PMU delivers novel solutions to long-standing utility concerns. As a result, this technology provides greater protection and control of power system networks. With that said, we hope this piece of information has been useful for you. Make use of the internet to determine more.