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Systematic Solutions for Reactive Power Compensation Deficiency

2025-08-23 13:33:02 134
Systematic Solutions to Insufficient Reactive Power Compensation
I. Conventional Technical Measures
  1. Generator Output Regulation

  • Give priority to utilizing the reactive power output capacity of generators to make up for the deficit

  1. Hierarchical Compensation Deployment

  • Centralized compensation: Install automatic switching capacitors on substation busbars

  • Group compensation: Add capacitors on the secondary side of distribution transformers

  • Local compensation: Configure independent compensation devices for high-power equipment

  1. Dynamic Compensation Technology

  • Large-scale power stations adopt SVG/SVC (response time ≤20ms)

  • Enable ±20% power factor adjustment for photovoltaic inverters

II. Solutions for Special Scenarios
  • Gap in photovoltaic systems:

  • Link compensation equipment at photovoltaic grid-connection points

  • Adopt high-voltage sampling low-voltage compensation to address adaptation issues

  • အသွင်အပြင်းက် no-load condition:

  • Intelligent controllers allow no-load over-compensation

  • Install adjustable capacitors on the high-voltage side

III. Key Points for Fault Prevention
  1. Equipment Maintenance:

  • Unify the brands and parameters of capacitors

  • Set the controller delay to 0.5-2 minutes

  1. Harmonic Control:

Mild cases: Upgrade the voltage class of capacitors
Severe cases: Install filtering devices
  1. Over-compensation Correction:

  • Inspect the wiring of power factor meters

  • Precisely control the input capacity of capacitors

IV. Management Optimization
  • Shorten the no-load operation time of equipment

  • Implement cloud-based real-time monitoring of power factors

Core target: Power factor after compensation ≥0.9

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