A) When functioning without connection to the network, it generates electrical energy at an electronically controlled voltage and frequency so as to meet emergency needs (it is assumed, that these needs are basically constituted by loads with cos 0,8 inductive, such as a lighting system and other similar cases).
B) In connection with the network, that is, in non-emergency situations, the system injects electrical energy into the network, taking advantage of the residual calories of the industry in which it is installed and at the same time very quickly corrects the installation's power factor.
The system basically consists of an asynchronous induction machine, a compensator for reactive power (S.V.C.), and the electronic circuits for control of the entire system. It will be useful in industries which fulfil the following conditions:
- Availability of residual calories useful for the generation of electrical power.
- Needs of an emergency system.
- Needs of compensation of reactive power.
Also, an analysis of the induction machine functioning as generator is given from a physical point of view and finally the results of testing a 15CV prototype built by the authors are exposed.
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