For the delayed trains you will see below the different details for compensation:

• Alvia, Euromed and AV City trains: 50% refund for delays over 30 minutes and 100% over 60 minutes.
  
• Talgo, Intercity and Trenhotel: equal or over 60 minutes: 50% refund, over 90 minutes: 100%.
  
• Media Distancia: over 15 minutes: 25% refund, over 30 minutes: 50% refund, over 60 minutes: 100% refund.
  
• Regional: over 30 minutes: 25%, over 45 minutes: 50%, over 60 minutes: 100%.
  
• Avant: over 15 minutes: 50% refund, over 30 minutes: 100% refund.
  
  

For trains that have been cancelled you are of course entitled to compensation, for this you will need to fill the form available on RENFE's website.