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Harmonic protection method for power distribution system of two-section bus type ups machine room

A technology for harmonic protection and power distribution systems, applied in harmonic reduction devices and AC networks to reduce harmonics/ripples, etc., can solve problems such as the influence of harmonic modulation in power distribution systems

Active Publication Date: 2019-05-14
浙江尼古拉斯电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At the same time, since the harmonic protection device often needs abnormal working conditions such as charging and maintenance when it is applied, these conditions will have an impact on the harmonic modulation of the entire power distribution system
There is no targeted solution to this specific problem in the prior art

Method used

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  • Harmonic protection method for power distribution system of two-section bus type ups machine room
  • Harmonic protection method for power distribution system of two-section bus type ups machine room
  • Harmonic protection method for power distribution system of two-section bus type ups machine room

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Embodiment Construction

[0018] refer to Figure 1-3 , the present invention will be described in detail.

[0019] A harmonic protection method for a power distribution system of a two-section bus-type UPS computer room, the power distribution system includes a left-section bus 10 and a right-section bus 11, the right end of the left-section bus 10 and the left end of the right-section bus 11 pass through the bus connection 19 connection, the bus tie switch 12 is set on the bus tie 19, the first transformer 1 is connected to the right end of the left bus 10, the second transformer 2 is connected to the left end of the right bus 11, the first transformer 1 and the second The second transformer 2 provides power to the left section bus 10 and the right section bus 11 respectively, and the left section bus 10 is connected with a left capacitance compensation module on the left side of the first transformer 1, and the left capacitance compensation module includes two parallel capacitance modules 3 , 4, tw...

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Abstract

The invention provides a harmonic wave protection method of a two-stage bus type UPS machine room power distribution system. Two harmonic wave protection modules are used for the harmonic wave protection method, and a capacitance compensation module and a load are arranged in the middle. Each harmonic wave protection module is provided with a main harmonic wave protector, an auxiliary harmonic wave protector and a coordination module. Each harmonic wave protector is provided with a signal acquisition and inverter circuit.

Description

technical field [0001] The invention relates to the field of power distribution, in particular to a harmonic protection method for a power distribution system of a two-section bus type UPS machine room. Background technique [0002] In the electric power distribution system, due to the influence of the load on the power grid, harmonic currents are generated, so it is often necessary to install harmonic protection devices in the power distribution system. These protection devices can modulate and suppress the harmonic currents generated in the power distribution system. However, the arrangement of power distribution systems in some specific fields is not involved in the prior art. Since the layout of power distribution equipment in specific fields is changeable, and the configuration of different equipment in the system changes, it will have a great impact on the harmonic modulation of the entire power distribution system. For example, the position of the access point shoul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/01
CPCY02E40/40
Inventor 刘德涵
Owner 浙江尼古拉斯电气科技有限公司