Self-excited induction generator with excellent voltage and frequency control

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Self-excited induction generator with excellent voltage and frequency control

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A capacitor-excited induction generator used with a hydraulic turbine in a stand-alone generating system can provide a high quality voltage and frequency control not matched by other small generating units. This is achieved without a turbine governor by using a controllable additional impedance on the load side. The control is achieved using a static converter. The analysis of the system and the design of the power and control system are presented. Measurements from an experimental unit are provided to verify the predicted performance.

Inspec keywords: control system synthesis; exciters; hydroelectric generators; machine control; frequency control; asynchronous generators; machine theory; voltage control; power convertors; machine testing; hydraulic turbines

Other keywords: self-excited induction generator; control system design; stand-alone generating system; controllable additional impedance; load side; control performance; frequency control; small generating units; static power converter; voltage control; hydraulic turbine

Subjects: Power convertors and power supplies to apparatus; Asynchronous machines; Hydroelectric power stations and plants; Frequency control; Voltage control; Control system analysis and synthesis methods; Control of electric power systems

References

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