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Marine three-phase power type UPS

A power-type, three-phase technology, applied in electrical components, emergency power supply arrangements, circuit devices, etc., can solve problems such as safety hazards in navigation safety, backup diesel generators that cannot be started, backup diesel generators that cannot work, etc., to achieve The output voltage is flexible and adjustable, the overall performance of the whole machine is good, and the effect of reducing the frequency of use

Pending Publication Date: 2021-07-23
厦门嘉菱电气机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there are two diesel generators normally used by large ocean-going ships, one of which is a standby diesel generator set. Normal operation, the main reason why the standby diesel generator cannot be started is that the oil supply system cannot supply oil, and the oil supply pump cannot supply oil to the standby diesel generator, causing the standby diesel generator to fail to work, and manual operation is required to restart the standby diesel generator set. It is inconvenient to use, and there are potential safety hazards in navigation safety. Therefore, we propose a marine three-phase power UPS to solve the above problems.

Method used

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  • Marine three-phase power type UPS
  • Marine three-phase power type UPS

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as Figure 1-6 As shown, a marine three-phase power UPS, including: a cabinet 1 and a UPS system inside the cabinet 1, a cabinet door 4 connected to the cabinet 1 through a hinge is arranged in front of the cabinet 1, and the left side of the cabinet 1 A cable gland 3 for accessing three-phase cables is provided, a first panel 101 and a second panel 102 from bottom to top are arranged on the front side of the cabinet body 1, a battery pack 9 is arranged on the rear side of the first panel 101, and a battery pack 9 is arranged on the second panel 101. The rear side of the panel 102 is provided with a switch 10, its front end is provided with a switch panel 11 and a maintenance mode switch 12, and the rear side of the second panel 102 is provided with a transformer 13, a charging board 14 and a control & power board 15, and the control & power board 15 is provided with AC-DC charger, DC-AC inverter, control drive circuit and central processing unit, UPS system includ...

Embodiment 2

[0049] This embodiment differs from Embodiment 1 in that:

[0050] Such as Figure 1-4 As shown, the bottom of the cabinet body 1 is provided with two parallel channel steel spacers 5, the bottom plate of the cabinet body 1 is provided with a fan, the channel steel spacer 5 is provided with fixing screw holes, and the channel steel spacer 5 forms a ventilating passage, and The fans are used together to greatly enhance the heat dissipation effect, and the fixing screw holes cooperate with the fixing bolts to install the cabinet body 1 on the ground.

[0051] Battery pack 9 comprises four batteries, and battery is colloidal lead-acid storage battery, and colloidal lead-acid battery is maintenance-free, and life-span is long, and applicable ambient temperature range is wide; Figure 7 As shown, it also includes a fan, the transformer 13 is connected to the fuse FU, the fuse FU is connected to the fan, and the fan is used for heat dissipation when the UPS works.

[0052] working...

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Abstract

The invention discloses a marine three-phase power type UPS. A cabinet door connected with a cabinet body through a hinge is arranged in front of the cabinet body, a cable gland connected with a three-phase cable is arranged on the left side of the cabinet body, a first panel and a second panel are arranged on the front side in the cabinet body from bottom to top, a three-phase power output end is connected with an input switch, the input switch is firstly connected with a bypass switch, and then is connected with an AC-DC charger and a main electric contactor, the AC-DC charger is connected with a battery pack and a battery air switch, the battery air switch is connected with a DC-AC inverter, the DC-AC inverter is connected with a transformer, the transformer is connected with an inversion output contactor, the main electric contactor and the inversion output contactor are connected with an output switch, and the bypass switch and the output switch are connected with the output end. A three-phase back-up power supply system and a PWM control technology are utilized to provide a three-phase zero-free power supply for the oil supply pump, so that the oil supply pump normally supplies oil to a back-up generator set and continuously works for half an hour or above.

Description

technical field [0001] The invention relates to the technical field of uninterruptible power supplies, in particular to a marine three-phase power UPS. Background technique [0002] UPS is an uninterruptible power supply with energy storage device, which is mainly used to provide uninterrupted power supply to some equipment that requires high power stability. When the mains input is normal, the UPS will stabilize the mains and supply it to the load, and it will also charge the battery inside the machine; when the mains is interrupted (accident blackout), the UPS will immediately transfer the DC power of the battery to the inverter. The method of switching conversion continues to supply 220V AC to the load, so that the load can maintain normal operation and protect the load software and hardware from damage. [0003] In the prior art, there are two diesel generators normally used by large ocean-going ships, one of which is a standby diesel generator set. Normal operation, t...

Claims

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Application Information

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IPC IPC(8): H02J9/06
CPCH02J9/062H02J9/068
Inventor 卢雄杨
Owner 厦门嘉菱电气机械设备有限公司
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