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An integrated PMU architecture for power system applications

  • Mir Khadim Aalam EMAIL logo and K.N. Shubhanga
Published/Copyright: September 9, 2021
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International Journal of Emerging Electric Power Systems
From the journal International Journal of Emerging Electric Power Systems Volume 23 Issue 4

Abstract

Time synchronized phasors obtained using Phasor Measurement Units (PMU) spread across wide areas have revolutionized power system monitoring and control. These synchronized measurements must be accurate and fast in order to comply with the latest IEEE standards for synchrophasor measurements. The speed at which a PMU provides an output depends on the group delay associated with that PMU and the permissible group delay in-turn decides the utility of a PMU for either control or measurement application. Based on the group delay compensation techniques, in the literature, two individual types of PMUs, such as causal and non-causal PMUs have been introduced. This paper presents an approach where both causal and non-causal PMUs are combined in an integrated PMU architecture. This method not only illustrates the group delay performance of two PMUs in a single module, but also can be used for multiple functions. In this environment several PMU algorithms have been compared with respect to their group delays and their effect on the response time. Application of the integrated PMU architecture to a four-machine 10-bus power system has been demonstrated using a six-input PMU with three-phase voltage and current signals as inputs. Different causal compensation schemes are introduced due to the availability of voltage and current-based frequency and ROCOF signals. Impact of these compensation schemes on PMU accuracy is evaluated through the Total Vector Error (TVE) index. The influence of these compensation schemes on measurements like power and impedance is also investigated. Finally, outputs from the integrated PMU architecture are fed into a Power System Stabilizer (PSS) to control the small-signal stability performance of a power system during dynamic conditions.

Keywords: causal and non-causal PMU; IEEE standard for synchrophasor measurements; integrated PMU architecture; Phasor Measurement Unit; wide area measurement systems; Power System Stabilizer
Corresponding author: Mir Khadim Aalam, Department of Electrical and Electronics Engineering, National Institute of Technology Karnataka Surathkal, Mangalore, India, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-03-19
Accepted: 2021-08-18
Published Online: 2021-09-09

© 2021 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Research Articles
  3. Theorems to explore the nature of cyber attacks on power system voltage stability
  4. An integrated PMU architecture for power system applications
  5. Commercial building load characteristics modeling considering equipment innate laws and various staff behaviors under demand response mechanism
  6. Design and performance improvements of solar based efficient hybrid electric vehicle
  7. A fault detection technique based on line parameters in ring-configured DC microgrid
  8. Integration of deterministic and game-based energy consumption scheduling for demand side management in isolated microgrids
  9. Optimal placement of wide area monitoring system components in active distribution networks
  10. Modeling, cost optimization and management of grid connected solar powered charging station for electric vehicle
  11. Improvements in deviation settlement mechanism of Indian electricity grid system through demand response management
  12. Design and implementation of an adaptive relay based on curve-fitting technique for micro-grid protection
  13. The comparison and analysis of Type 3 wind turbine models used for researching the stability of electric power systems
https://doi.org/10.1515/ijeeps-2021-0151
Keywords for this article
causal and non-causal PMU; IEEE standard for synchrophasor measurements; integrated PMU architecture; Phasor Measurement Unit; wide area measurement systems; Power System Stabilizer

Articles in the same Issue

  1. Frontmatter
  2. Research Articles
  3. Theorems to explore the nature of cyber attacks on power system voltage stability
  4. An integrated PMU architecture for power system applications
  5. Commercial building load characteristics modeling considering equipment innate laws and various staff behaviors under demand response mechanism
  6. Design and performance improvements of solar based efficient hybrid electric vehicle
  7. A fault detection technique based on line parameters in ring-configured DC microgrid
  8. Integration of deterministic and game-based energy consumption scheduling for demand side management in isolated microgrids
  9. Optimal placement of wide area monitoring system components in active distribution networks
  10. Modeling, cost optimization and management of grid connected solar powered charging station for electric vehicle
  11. Improvements in deviation settlement mechanism of Indian electricity grid system through demand response management
  12. Design and implementation of an adaptive relay based on curve-fitting technique for micro-grid protection
  13. The comparison and analysis of Type 3 wind turbine models used for researching the stability of electric power systems
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