Field Flashing Synchronous Generator

When power goes completely out, it is necessary to excite the fields of power system generators with battery power to re-start the generators before switching back to using generator output power for field excitation; this is known as a black start.

We are designing a black start field exciter system for the 15kVA synchronous generator in the Gauss Johnson Lab to be used for research on black start conditions.

Problem Definition
When power goes completely out, it is necessary to excite the fields of power system generators with battery power to re-start the generators before switching back to using generator output power for field excitation; this is known as a black start. We are designing a black start field exciter system for the 15kVA synchronous generator in the Gauss Johnson Lab to be used for research on black start conditions.

Deliverables
• Black Start System for GJL 15 kVA Generator: -  ABB Field Exciter

-  Battery Bank

-  Exciter Power Supply Transfer Switch

- Battery Bank

- Transfer Switch Controller • Validation/improvement of existing RTDS model

• Model of black start on RTDS simulation

• Documentation of black start system operating procedures for future work

Specifications


System Process: 1.	Prime mover spins rotor to initiate a black start

2.	Battery bank powers ABB field exciter until sufficient power is provided from synchronous generator to run the field exciter.

3.	Black start system controls transfer of exciter power supply from batteries to generator power.

4.	Generator reaches rated output power.

5.	ABB field exciter controls excitation in steady state operation

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