FIELD: engineering of transformation equipment, possible use in control systems for induction heating devices.
SUBSTANCE: invention increases reliability of operation of current inverter, containing fully controllable rectifying cells. Method for controlling current inverter, containing fully controllable rectifying cells, working for load in form of parallel oscillation contour includes generation and turn by turn transmission of control impulses to rectifying cells, generating direct and reverse voltage semi-waves on load. During that, instantaneous value of voltage semi-wave on load is measured, transfer moments of instantaneous value of voltage semi-waves on load are determined through zero value, next control impulses are sent to rectifying cells in transfer moments of instantaneous values of voltage semi-waves on load through zero value, time interval is set, time interval is measured between transfer moments of instantaneous value of voltage semi-wave on load through zero value, measured time interval is compared to given time interval. In case if measured time interval exceeds given time interval, feeding of control impulses to rectifying cells is stopped. Second time interval is set, next control impulses are sent and next rectifying cells are enabled ahead of time relatively to transfer moments of instantaneous value of voltage semi-wave on load through zero value, and previously enabled rectifying cells are disabled in transfer moments of instantaneous value of voltage semi-wave on load through zero value, second given time interval is compared to measured time interval, transmission of control impulses to rectifying cells is stopped on second case when given time interval exceeds measured time interval.
EFFECT: increased reliability.
2 dwg
