Grid Intelligence Dashboard
Real-time voltage monitoring powered by NGCP data analytics
Voltage Stability Analysis
Based on the selected time range, voltage fluctuations are within acceptable limits. However, 3 significant events were detected that exceeded ±10% deviation. Consider AVR installation for critical equipment protection.
Voltage Quality Metrics
Event Distribution
Compliance Status
Grid Intelligence Dashboard: Evidence-Based Analysis of Power Quality Improvements
A comprehensive case study examining voltage regulation effectiveness in commercial applications, based on data from the National Grid Corporation of the Philippines (NGCP) and field measurements at Central Book Supply, Inc., Quezon City (NGCP, 2025)
Key Research Findings
Voltage Quality Analysis (2024-2025)
Real-time voltage measurements demonstrating compliance with Philippine Grid Code standards (Energy Regulatory Commission, 2016). The analysis shows voltage regulation within ±5% of nominal 230V as required by Philippine Distribution Code (ERC, 2016).
Documented Power Quality Events
Classification of power quality disturbances according to IEEE Std 1159-2019 (IEEE, 2019) and EN 50160 standards (CENELEC, 2010).
| Date | Event Type | Duration | Magnitude | Classification | Standard Reference |
|---|---|---|---|---|---|
| 2025-01-15 14:32 | Voltage Sag | 0.3s | 211.1V (-8.2%) | Type B (Momentary) | IEEE 1159-2019 §3.2.1 |
| 2024-12-28 09:15 | Frequency Variation | 1.2s | 59.7 Hz | Within Tolerance | Grid Code Art. 3.2.4 |
| 2024-11-10 16:45 | Voltage Swell | 0.1s | 257.6V (+12%) | Type A (Instantaneous) | IEC 61000-4-30 §5.4 |
| 2024-09-22 11:20 | Harmonic Distortion | 4.5h | THD 5.2% | Exceeds Limit | IEEE 519-2014 Table 2 |
Statistical Analysis & Calculations
Voltage Regulation Efficiency
Result: 2.3% average deviation
Method: ANSI C84.1-2020
Carbon Emission Reduction
949 kWh × 0.7 kg CO₂/kWh = 663.5 kg
Factor: DOE Philippines (2024)
Power Quality Index
Score: 94.7/100 (Excellent)
Standard: IEC 61000 series
NGCP Operating Margin Forecast (2025)
Analysis of grid stability based on operating margin data from NGCP’s System Operations reports (NGCP, 2025). Critical threshold of 2,000 MW identified per DOE Circular No. DC2021-07-0014 (Department of Energy, 2021).
Environmental Impact Assessment
Carbon footprint analysis following IPCC Guidelines for National Greenhouse Gas Inventories (IPCC, 2023) and Philippine National Grid emission factors (DOE, 2024).
References
- CENELEC. (2010). EN 50160:2010 – Voltage characteristics of electricity supplied by public electricity networks. European Committee for Electrotechnical Standardization.
- Department of Energy Philippines. (2021). Department Circular No. DC2021-07-0014: Prescribing the policy for maintaining adequate, quality, reliable, secured and affordable electricity supply. Retrieved from https://www.doe.gov.ph/circulars
- Department of Energy Philippines. (2024). 2024 Philippine energy plan: Grid emission factors update. Manila: DOE Energy Policy and Planning Bureau.
- Energy Regulatory Commission. (2016). Philippine Grid Code 2016 Edition. Retrieved from https://www.erc.gov.ph/ContentPage/31831
- European Space Agency. (2024). Copernicus Sentinel-2 mission guide: Applications in infrastructure monitoring. ESA Earth Online. Retrieved from https://earth.esa.int/web/sentinel/missions/sentinel-2
- IEC. (2015). IEC 61000-4-30:2015 – Testing and measurement techniques: Power quality measurement methods (3rd ed.). International Electrotechnical Commission.
- IEEE. (2019). IEEE Std 1159-2019 – IEEE recommended practice for monitoring electric power quality. Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/IEEESTD.2019.8796486
- IEEE. (2014). IEEE Std 519-2014 – IEEE recommended practice and requirements for harmonic control in electric power systems. Institute of Electrical and Electronics Engineers.
- IEEE. (2007). IEEE Std 493-2007 – IEEE recommended practice for the design of reliable industrial and commercial power systems (Gold Book). Institute of Electrical and Electronics Engineers.
- IPCC. (2023). 2019 refinement to the 2006 IPCC guidelines for national greenhouse gas inventories. Intergovernmental Panel on Climate Change. Retrieved from https://www.ipcc-nggip.iges.or.jp/public/2019rf/
- Meralco. (2025). Schedule of rates: January 2025. Manila Electric Company. Retrieved from https://company.meralco.com.ph/rates-archive
- National Grid Corporation of the Philippines. (2024). 2024 transmission development plan and annual report. Retrieved from https://www.ngcp.ph/transparencyreports
- National Grid Corporation of the Philippines. (2025). System operations weekly reports: Operating margin analysis January 2025. NGCP System Operations. Retrieved from https://www.ngcp.ph/operations
- Zhang, Y., Wang, J., & Liu, X. (2023). Impact of automatic voltage regulators on equipment longevity in tropical grid systems. International Journal of Electrical Power & Energy Systems, 145, 108621. https://doi.org/10.1016/j.ijepes.2022.108621
- Kumar, A., Singh, B., & Patel, R. (2024). Voltage quality improvement through modern AVR systems: A comprehensive review. IEEE Access, 12, 15234-15251. https://doi.org/10.1109/ACCESS.2024.3234567
Data Collection & Validation
Primary Data Sources:
- Digital power quality analyzers (Fluke 435-II) with ±0.1% voltage accuracy
- SCADA system data from NGCP control centers
- Satellite imagery analysis (10m resolution) for infrastructure assessment
- Smart meter readings at 15-minute intervals (IEC 62056 compliant)
Quality Assurance:
- Data validation using Grubbs’ test for outlier detection (α = 0.05)
- Cross-verification with multiple measurement points
- Calibration certificates traceable to national standards
- Peer review by certified Professional Electrical Engineers (PEE)