Interface circuit of mobile microgrid system

Abstract

The invention discloses an interface circuit of a mobile microgrid system. The interface circuit comprises a transformer, an AC bus and a DC bus, wherein a high-voltage side of the transformer is connected with an external upper power supply via a high-voltage interface, a low-voltage side of the transformer is electrically connected with the AC bus, the AC bus is electrically connected with the DC bus via an AC / DC module, various distributed resource AC interfaces are connected to the AC bus, and various distributed resource AC interfaces are connected to the DC bus. By the interface circuit,local regional power supply, small-regional power balancing and energy optimization under the condition of damage to a main network frame can be achieved; and meanwhile, the high power customizationdemands such as distributed resource absorption, uninterruptible power supply, reactive power and electric energy quality compensation of a user are satisfied.

Description

technical field [0001] The invention relates to an interface circuit of a mobile micro-grid system, which belongs to the technical field of mobile substations. Background technique [0002] At present, most of the maintenance and repair of power system equipment are carried out in the state of power outage. If the operation cannot be carried out in time due to bad weather or other reasons, it will inevitably lead to a long-term power outage, resulting in huge economic losses and negative social impacts. Especially in the face of irresistible natural disasters such as ice and snow, floods, thunderstorms and other disasters, the original operation methods and measures cannot fundamentally and effectively solve the outstanding contradictions such as the normal supply of electricity and energy urgently needed for disaster relief. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an interface circ...

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Problems solved by technology

[0002] At present, power system equipment maintenance and emergency repairs are mostly carried out in the state of power outage. If the operation cannot be carried out in time due to bad weather or other reasons, it is bound to form a long-term power outage, which will cause huge economic losses and negative social impact.

Especially in the face of irresistible natural disasters such as ice and snow, floods, thunderstorms and other disasters, the original operation methods and measures cannot fundamentally solve the outstanding contradictions such as the normal supply of power and energy urgently needed for disaster relief in a timely and effective manner.

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