Measurement of 40 power system harmonics in real-time on an economical ARM® Cortex™-M3 platform

Andrew Roscoe, Tom Sklaschus, Gavin Oldroyd, Steven Macpherson Blair, Graeme Burt

Research output: Contribution to journalLetter

2 Citations (Scopus)
384 Downloads (Pure)

Abstract

Within future homes and electrical power networks, emphasis is being placed on intelligent, distributed measurement devices. In particular, the recognition of individual or aggregated loads through harmonic signature has been proposed as a useful way to enhance the value of home energy monitoring/control. Clearly, the cost of implementing such measurement devices is a major barrier to acceptance. In a recent project, a challenge was set to implement real-time software on an ARM ® Cortex™ LPC1768 microcontroller platform (chip cost c. £4). The software must be capable of measuring a single-phase AC frequency, real and reactive power flows and provide a full breakdown of the voltage and current (and power) behaviour via harmonic analysis from DC to the 40th, in real-time with a new output every 20 ms. In addition, the algorithm must be capable of adapting the measurement when the frequency is not nominal (50 Hz) so that spectral leakage is minimised. It is found that the LPC1768 processor is capable of supporting such an algorithm when it is coded appropriately. This knowledge de-risks the proposed use of such cheap microcontrollers for these relatively complex tasks.
Original languageEnglish
Pages (from-to)1475-1476
Number of pages2
JournalElectronics Letters
Volume49
Issue number23
DOIs
Publication statusPublished - 7 Nov 2013

Fingerprint

Microcontrollers
Harmonic analysis
Reactive power
Costs
Monitoring
Electric potential

Keywords

  • measurement
  • 40 power system harmonics
  • real-time
  • economical
  • ARM
  • cortex
  • m3 platform
  • power system harmonics
  • reactive power
  • voltage measurement
  • power system measurement
  • computerised instrumentation
  • microcontrollers
  • power measurement
  • frequency measurement
  • electric current measurement

Cite this

@article{81f37fe719874ca59666c5a63f8495b8,
title = "Measurement of 40 power system harmonics in real-time on an economical ARM{\circledR} Cortex™-M3 platform",
abstract = "Within future homes and electrical power networks, emphasis is being placed on intelligent, distributed measurement devices. In particular, the recognition of individual or aggregated loads through harmonic signature has been proposed as a useful way to enhance the value of home energy monitoring/control. Clearly, the cost of implementing such measurement devices is a major barrier to acceptance. In a recent project, a challenge was set to implement real-time software on an ARM {\circledR} Cortex™ LPC1768 microcontroller platform (chip cost c. £4). The software must be capable of measuring a single-phase AC frequency, real and reactive power flows and provide a full breakdown of the voltage and current (and power) behaviour via harmonic analysis from DC to the 40th, in real-time with a new output every 20 ms. In addition, the algorithm must be capable of adapting the measurement when the frequency is not nominal (50 Hz) so that spectral leakage is minimised. It is found that the LPC1768 processor is capable of supporting such an algorithm when it is coded appropriately. This knowledge de-risks the proposed use of such cheap microcontrollers for these relatively complex tasks.",
keywords = "measurement, 40 power system harmonics, real-time, economical , ARM, cortex, m3 platform, power system harmonics, reactive power, voltage measurement, power system measurement, computerised instrumentation, microcontrollers, power measurement, frequency measurement, electric current measurement",
author = "Andrew Roscoe and Tom Sklaschus and Gavin Oldroyd and Blair, {Steven Macpherson} and Graeme Burt",
year = "2013",
month = "11",
day = "7",
doi = "10.1049/el.2013.0299",
language = "English",
volume = "49",
pages = "1475--1476",
journal = "Electronics Letters",
issn = "0013-5194",
publisher = "Institution of Engineering and Technology",
number = "23",

}

Measurement of 40 power system harmonics in real-time on an economical ARM® Cortex™-M3 platform. / Roscoe, Andrew; Sklaschus, Tom; Oldroyd, Gavin; Blair, Steven Macpherson; Burt, Graeme.

In: Electronics Letters, Vol. 49, No. 23, 07.11.2013, p. 1475-1476.

Research output: Contribution to journalLetter

TY - JOUR

T1 - Measurement of 40 power system harmonics in real-time on an economical ARM® Cortex™-M3 platform

AU - Roscoe, Andrew

AU - Sklaschus, Tom

AU - Oldroyd, Gavin

AU - Blair, Steven Macpherson

AU - Burt, Graeme

PY - 2013/11/7

Y1 - 2013/11/7

N2 - Within future homes and electrical power networks, emphasis is being placed on intelligent, distributed measurement devices. In particular, the recognition of individual or aggregated loads through harmonic signature has been proposed as a useful way to enhance the value of home energy monitoring/control. Clearly, the cost of implementing such measurement devices is a major barrier to acceptance. In a recent project, a challenge was set to implement real-time software on an ARM ® Cortex™ LPC1768 microcontroller platform (chip cost c. £4). The software must be capable of measuring a single-phase AC frequency, real and reactive power flows and provide a full breakdown of the voltage and current (and power) behaviour via harmonic analysis from DC to the 40th, in real-time with a new output every 20 ms. In addition, the algorithm must be capable of adapting the measurement when the frequency is not nominal (50 Hz) so that spectral leakage is minimised. It is found that the LPC1768 processor is capable of supporting such an algorithm when it is coded appropriately. This knowledge de-risks the proposed use of such cheap microcontrollers for these relatively complex tasks.

AB - Within future homes and electrical power networks, emphasis is being placed on intelligent, distributed measurement devices. In particular, the recognition of individual or aggregated loads through harmonic signature has been proposed as a useful way to enhance the value of home energy monitoring/control. Clearly, the cost of implementing such measurement devices is a major barrier to acceptance. In a recent project, a challenge was set to implement real-time software on an ARM ® Cortex™ LPC1768 microcontroller platform (chip cost c. £4). The software must be capable of measuring a single-phase AC frequency, real and reactive power flows and provide a full breakdown of the voltage and current (and power) behaviour via harmonic analysis from DC to the 40th, in real-time with a new output every 20 ms. In addition, the algorithm must be capable of adapting the measurement when the frequency is not nominal (50 Hz) so that spectral leakage is minimised. It is found that the LPC1768 processor is capable of supporting such an algorithm when it is coded appropriately. This knowledge de-risks the proposed use of such cheap microcontrollers for these relatively complex tasks.

KW - measurement

KW - 40 power system harmonics

KW - real-time

KW - economical

KW - ARM

KW - cortex

KW - m3 platform

KW - power system harmonics

KW - reactive power

KW - voltage measurement

KW - power system measurement

KW - computerised instrumentation

KW - microcontrollers

KW - power measurement

KW - frequency measurement

KW - electric current measurement

UR - http://www.scopus.com/inward/record.url?scp=84889037361&partnerID=8YFLogxK

U2 - 10.1049/el.2013.0299

DO - 10.1049/el.2013.0299

M3 - Letter

VL - 49

SP - 1475

EP - 1476

JO - Electronics Letters

JF - Electronics Letters

SN - 0013-5194

IS - 23

ER -