Excitation Systems
ELSIB can supply the generators complete with excitation systems of the following types:
- Thyristor-type static self-excitation СТС (STS) systems for turbo and hydro generators;
- Brushless excitation systems КБСВ (KBSV) for turbo generators with capacities between 6 and 32 MW;
- Separate thyristor-type excitation systems СТН (STN) for large capacity generators.
Excitation systems provide full support of the following modes of operation of the generators:
- Initial excitation;
- Manual and automatic synchronization prior to connecting to a grid;
- No-load running;
- Operation in the grid with loads and overloads allowed for the generator;
- Remote adjustment of the generator voltage settings within 80% to 100% of nominal;
- Adjustment of excitation parameters with nonlinear functions or PID controllers;
- Keeping the voltage fluctuations within ±0.5% for a specified control point according to given settings and droop in the normal operating mode of the generator and for excitation voltage up to 110% of nominal;
- Forced excitation with specified multiplication factor;
- De-excitation in case of failures in the grid;
- Limitation of excitation current and restriction of field winding and stator overcurrent according to the generator specifications;
- Minimal excitation current limiting depending on real power of the generator when reactive power is consumed from the grid;
- Field suppression when stopping the generator or in case of emergency;
- Operation in the reactive power compensation system.
Downloads