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A new sliding mode control for single-phase UPS inverters is introduced based on rotating sliding surface. It is shown that the sliding surface can be rotated in the phase plane in such a direction that the tracking capability of the inverter is improved when it is subjected to load variations. It should be noted that the sliding surface rotation is possible with a time-varying slope which is computed...
A new approach to the sliding mode control of single-phase UPS inverters is introduced in continuous-time. A three-level hysteresis switching function is used to directly control the inverter switches. The theoretical and predicted switching frequency expressions are given. The performance of the proposed control method has been tested through computer simulations using different loads (a load which...
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