The Glass CHP · CHP

Can a CHP unit provide reactive power?

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Can a CHP unit provide reactive power?
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What is Can a CHP unit provide reactive power??

Via the excitation (AVR), the synchronous generator can provide reactive power and set the cos φ (typically 0.9 to 1.0 during feed-in); grid-friendly reactive power can be required or remunerated by the grid operator.

The plant — right now

connect… · anonymous reference plant · read-only from the process control system, active power calculated in-house … kW reactive power … kvar apparent power … kVA cos φ … Gen-voltage … V frequency … Hz excerpt from … plant measurements. To the detailed explanation page with video →

What the AI reads from these values

What the AI reads
  • Current cos φ value to verify correct reactive power output
  • Status of the excitation control (AVR) to ensure voltage stability
  • Comparison of active power (P) with reactive power for grid compliance
  • Monitoring of the grid voltage as an indicator for correct reactive power provision
Scenario

Monitoring: continuous

The scenario: A drifting excitation shifts the cos φ without triggering a limit value, reactive power costs, or grid issues. The AI: detects the shift in proportion early and reports it before the protection reacts. It identifies the trend before the limit value is reached.

Why this matters

The active provision of reactive power ensures grid stability and prevents imminent penalties or disconnections by the grid operator. By precisely setting the cos φ, the required quality of feed-in is guaranteed. This enables the use of remuneration models for grid-friendly services. Active power (kW) · Reactive power (kvar) → — kVA apparent power Calculation path: √(active power² + reactive power²)

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