Review of the h-bridge three-phase low power dissipation connected micro-grid network

Abstract

Abstract This paper discusses low-power H-bride filters connected to micro-grid networks. Installation of resistors as damping can improve drop power efficiency and maintain THD under the IEEE standard but creates new problems in terms of resonance when increasing output power. Filter analysis and filter results describe the proposed passive LCL H-bridge damping performance. To ensure the desired power out ability and to ensure the desired dynamic performance, the resistor as damping is determined is tested, while the capacitance is chosen to minimize damping reduction. From the results of our research, with the comparative analysis we get, namely: The smaller the resistance value, the smaller the power and efficiency decrease, but the smaller the loss losses, while the greater the value of resistance the higher the output power and efficiency, but frequency losses also higher. The H-bridge filter has excellent capabilities in reducing harmonics 0.6% and power efficiency 92-95%, proving that the 80ohm resistance value is up to 150ohm. At a value of 200ohm, it only produces losses against frequency.

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