INVERTER GENERATOR AND METHOD TO CONTROL THIS GENERATOR Russian patent published in 2011 - IPC H02M7/48 H02P9/04 H02K19/16 

FIELD: electricity.

SUBSTANCE: in proposed invention, comprising unit of electric machine generator; converter, which converts generated alternating current into direct current; inverter, which converts direct current into alternating current, equipped with key elements for supply of electric load; control device of inverter, controlling key elements with the help of pulse width signal and generating alternating current of specified frequency, current metre is introduced to measure alternating current supplied at electric load; as well as metre of DC voltage for measurement of DC voltage at the outlet of converter; metre of DC voltage to measure AC voltage at the outlet of inverter; controller of output voltage, and controller of pulse width signal. The second version - method to control inverter generator comprises unit of generator, driven by internal combustion engine and generating alternating current; converter connected to unit of generator and transforming alternating current into direct current; inverter connected to converter and transforming direct current into alternating current, equipped with key elements for supply of electric load; control device of inverter, includes the following steps: measurement of DC supplied to electric load, measurement of DC voltage at the outlet of converter, measurement of AC at the outlet of inverter, control of measured AC voltage at the specified level in compliance with coefficient set on the basis of measured value of DC voltage, when measured value of alternating current exceeds threshold value, and control of pulse width signal in current cycle of control at specified value so that measured value of AC is lower than threshold value.

EFFECT: conversion into AC of specified frequency with the help of pulse width signal generated with application of reference sinusoid signal, having wave form of required output voltage, and bearing signal, providing at the same time for possibility of reliable limitation or weakening of overcurrent.

10 cl, 5 dwg