Droop Control in Microgrids Laura Ramrez Elizondo Learning - - PowerPoint PPT Presentation

droop control in microgrids
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Droop Control in Microgrids Laura Ramrez Elizondo Learning - - PowerPoint PPT Presentation

Droop Control in Microgrids Laura Ramrez Elizondo Learning Objectives How is droop control implemented in a voltage source converter? What are conventional and inverse droop control strategies? What is a virtual impedance?


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SLIDE 1

Droop Control in Microgrids

Laura Ramírez Elizondo

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SLIDE 2

Learning Objectives

  • How is droop control implemented in a

voltage source converter?

  • What are conventional and inverse

droop control strategies?

  • What is a virtual impedance?
  • What are the advantages and

disadvantages of droop control?

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SLIDE 3

Droop Control Implementation in a VSI

  • Frequency droop control
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SLIDE 4

Droop Control Implementation in a VSI

  • Voltage droop control
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SLIDE 5

Conventional and Inverse Droop

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SLIDE 6

Conventional and Inverse Droop

Conventional droop Opposite droop Compatible with HV Yes No Compatible with rotating generators Yes No Active power dispatch Yes No Direct voltage control No Yes

Inverse droop:

  • Active power vs voltage
  • Reactive power vs frequency
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SLIDE 7

Droop Control with Physical or Virtual Impedance

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SLIDE 8

Disadvantages of Droop-Based Methods

  • Unstable region
  • High frequency
  • scillations
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SLIDE 9

Standards for Voltage and Frequency Deviations

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SLIDE 10

Summary