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The leakage current in grid-interface converter systems presents a considerable issue in regard to safety and efficiency. The full-bridge inverter is a well-accepted topology in single-phase power conversion applications. The high-frequency pulsewidth modulation (PWM) modulation schemes are normally applied to the full-bridge topology for smaller ac filter size, which, however, generates a high-frequency...
This paper presented a design for distributed logic controlled parallel operation UPS systems depending on cycle control. This design proposed a practical parallel operation according to the needs of real industrial application. This protocol ensures correct logic switching and stable information exchanges in toughly interfering application environment. Also this protocol gives the plug and play ability...
The traditional PID control strategy which is realized in digital method canpsilat achieve better performance than that in analog control. The reason was analyzed why the digital process influences the digital controlled PWM inverterpsilas performance in this paper. One is the process of the zero-order hold. Another one is one-step-delay control which is usually adopted in digital control. Three aspects...
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