Page 96 - Power Electronic Control in Electrical Systems

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(or fault current limiter)

Short-circuit limiting coupling

Thyristor switched capacitor

Thyristor controlled reactor

Polyphase saturated reactor

Synchronous condenser

Series capacitor

Series reactor

Shunt capacitor
linear/non-linear)
(Switched/unswitched;

Shunt reactor

Braking resistors
Reclosing of circuit-breakers

Rapid line-switching operations:

Fast turbine valving

Fast AVR control

Slow AVR control

Transformer Tapchanging

Increase no. of lines in parallel

Increase transmission voltage

control stability stability stability change change to due etc. support terminals level level

voltage steady-state dynamic transient voltage voltage overvoltages switching power short-circuit short-circuit

and rapid slow converter
stability Improve Improve Improve Limit Limit Limit lightning, Reactive DC at Increase Decrease

for
Methods voltage requirements

3.1 Maintain synchronism Maintain
Table 1. 2. profile Other