Power supply method for island special energy router

A power supply method and router technology, applied in the field of power control, can solve the problems of high instantaneous energy of power supply, unsatisfactory power interconnection topology, long overload duration, etc., and achieve the effect of improving reception capacity, short-term overload capacity, and effective utilization.

Active Publication Date: 2020-02-21
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a sea island special energy router and its power supply method in view of the deficiencies of the existing technology, so

Method used

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  • Power supply method for island special energy router
  • Power supply method for island special energy router
  • Power supply method for island special energy router

Examples

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Example Embodiment

[0035] Such as figure 1 As shown, the special energy router includes two AC and DC buses: AC power supply unit is connected to DC bus through AC / DC converter, photovoltaic array is connected to DC bus through phase-shifted full bridge 2, and energy storage unit is connected to DC bus through bidirectional DAB converter. The DC bus realizes energy interaction; the AC power supply unit is fed into the AC bus through the bypass switch, and the DC bus realizes energy interaction with the AC bus through the PWM inverter; the AC bus supplies power to three-phase and single-phase AC loads respectively, and the DC bus is phase-shifted The full-bridge converters 3 and 4 respectively supply power to different DC loads, while also leaving a DC bus interconnection interface to facilitate system expansion.

[0036] Such as Figure 1~2 As shown, the power supply mode of the energy converter is as follows:

[0037] Mode 1: Light load or no-load power supply, P Load vmax , SOC Under 95% working ...

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PUM

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Abstract

The invention discloses a power supply method for an island special energy router. An energy router comprises an AC bus and a DC bus; an AC power supply unit is converged into the DC bus through an AC/DC converter, a photovoltaic array is converged into the DC bus through a phase shift full bridge 1, and an energy storage unit achieves the energy interaction with the DC bus through a bidirectionalDAB converter; the AC power supply unit is converged into the AC bus through a bypass switch, the DC bus achieves energy interaction with the AC bus through a PWM inverter, and the AC bus supplies power to a three-phase AC load and a single-phase AC load. The DC bus is powered by the photovoltaic, the energy storage unit and the AC power supply unit jointly, so that the admitting ability of a wide input voltage range is effectively improved. Under the load overload working condition, the PWM inverter and the AC power supply unit are combined for power supply, two AC energy channels can be provided at the same time, and the power supply overload capacity is effectively improved.

Description

technical field [0001] The invention relates to the field of power control, in particular to a power supply method for a sea-island special energy router. Background technique [0002] my country has a vast sea area, long and narrow coastline, numerous islands, and abundant coastal resources. As the outpost of the "Maritime Silk Road" strategy, islands have a special and important position in homeland security and national defense security; the development of islands is a major deployment of my country's "maritime engineering" and is the only way for my country to become a "maritime power". At present, the island's military weapons and equipment, national defense and civilian facilities urgently need stable and reliable power supply. A highly reliable power supply system is the cornerstone and important guarantee for island construction. [0003] The islands have rich reserves of new energy such as solar energy, wind energy, wave energy, and biomass energy. Compared with t...

Claims

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Application Information

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IPC IPC(8): H02J4/00H02J3/32H02J3/38H02J3/46H02J1/10H02J1/14H02J5/00
CPCH02J1/10H02J1/14H02J3/32H02J3/381H02J3/46H02J4/00H02J5/00Y02E10/56Y02E70/30
Inventor 周乐明易伟浪姜捷刘思怡王舒克周杰肖婵彭聪
Owner HUNAN UNIV
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