Power transformation transmission system suitable for wave power generator unit

Abstract

The invention provides a power transformation transmission system suitable for a wave power generator unit. The power transformation transmission system comprises a rectification/boost power supply device, a submarine cable, a direct current converter device, a storage battery cabinet, an inverter power supply device and an isolation transformer. The rectification/boost power supply device rectifies and boosts the AC three-phase 400V alternating voltage output by the power generator unit to the 1006V direct current voltage. The direct current converter device stabilizes the 1006V direct current voltage; when the rotating speed of the power generator unit is normal, the direct current converter device supplies a direct current input power supply to the inverter power supply device and supplies the floating charge voltage to a storage battery; when the rotating speed of the power generator unit is low, the storage battery releases stored energy, and the storage battery and the direct current converter device jointly supply the direct current input power supply to the inverter power supply device. The inverter power supply device inverts the direct current input voltage with the 1006Vdc rated input into the alternating voltage with the 230Vac single phase and the alternating voltage with the 400Vac three phases, and then the stable 230/400Vac alternating voltage is output by the isolation transformer of which the ratio of transformation is 1 to 1. The power transformation transmission system is small in loss and high in power generating efficiency.

Description

technical field [0001] The invention relates to a power transformation and transmission system suitable for a wave energy generating set, belonging to the technical field of power electronics. Background technique [0002] The 21st century is the century of the ocean, and it has become an inevitable trend for human beings to seek resources from the ocean. However, to develop the ocean away from the mainland, what people need most is to have enough electricity and fresh water. The use of ocean wave energy to generate electricity has opened up a new way for the in-depth development of ocean resources and the improvement of the life of officers and soldiers stationed on islands. There are abundant wave energy and water in the ocean, among which wave energy is the highest grade (existing in the form of mechanical energy), the easiest to use directly, and an inexhaustible renewable clean energy. In this context, Western ocean powers have carried out experiments using new techno...

AI Technical Summary

Problems solved by technology

However, due to the instability of wave energy, the loss in the process of power transformation and transmission is relatively large, resulting in a relatively low maximum total power generation efficiency of these devices. From the perspective of energy utilization, the cost is still too expensive

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