Islanded Operation Mahdi Izadkhast Learning Objectives What are - PowerPoint PPT Presentation

Ancillary Services in Microgrids During Islanded Operation Mahdi Izadkhast

Learning Objectives • What are the most important services for microgrids during islanded mode? • How are the frequency and voltage support controlled during islanded mode? • What is the islanding process?

Islanded Mode

Frequency Support

Frequency Control

Frequency Control f t Safe operation of island system f min 1 f Loads are disconnected min 2 Loads Are more disconnected f min 3 Island system is shut down

Frequency Control f t Safe operation of island system f min 1 Small fraction of loads disconnected f Loads are disconnected min 2 Loads Are more disconnected f min 3 Island system is shut down

Frequency Control f t Safe operation of island system f min 1 A fraction of loads disconnected f Loads are disconnected min 2 Loads Are more disconnected Additional fraction of loads disconnected f min 3 Island system is shut down

Frequency Control f t Safe operation of island system f min 1 Small fraction of loads disconnected f Loads are disconnected min 2 Loads Are more disconnected Larger fraction of loads disconnected f min 3 Island system is shut down

Frequency Control f Island system is shut down f max 2 Loads are connected f max 1 Safe operation of island system t

Frequency Control f Island system is shut down f max 2 Loads are connected f max 1 Safe operation of island system t

Frequency Control f Island system is shut down f max 2 Loads are connected f max 1 Safe operation of island system t

Voltage Control

Black Start

Islanding

Summary