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Compact high-voltage power quality optimization device

A high-voltage electric energy and optimization device technology, applied in the direction of circuit devices, electrical components, AC network circuits, etc., can solve the problems of unable to monitor power quality in real time, low utilization rate of equipment power density, waste of space, etc., to achieve both system voltage support, The effect of improving space utilization and increasing power density

Inactive Publication Date: 2017-06-16
LIVESINE ELECTRIC SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power quality optimization device is usually implemented by cascading H power units. However, the existing power quality compensation device has the problem of electrical gap isolation, and a large isolation space needs to be left between the power units so that multiple sets of cabinets are required to complete. The utilization rate of equipment power density is low, resulting in waste of space, and it is impossible to monitor power quality in real time

Method used

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  • Compact high-voltage power quality optimization device

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Embodiment

[0020] Such as figure 1 As shown, a compact high-voltage power quality optimization device includes a three-phase cascaded H-bridge and a power compensator 2 connected to the three-phase cascaded H-bridge, and each phase of the three-phase cascaded H-bridge consists of multiple H-bridge power units 1 are cascaded, and each of the H-bridge power units 1 includes four power devices, and each power device includes a reactor and a radiator installed on the reactor. The outside of the reactor is sealed with insulating sealant, and each H-bridge power unit 1 is arranged in the same electrical cabinet, and the cabinet body of the electrical cabinet is divided into multiple heat dissipation channels by criss-cross isolation grooves. The radiator and reactance The resistors are distributed in the corresponding heat dissipation channels, and the gaps between the heat dissipation channels are used to accommodate the connecting part of the reactor and the heat sink. The isolation groove ...

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Abstract

The invention relates to a compact high-voltage power quality optimization device comprising a three-phase cascaded H bridge and a power compensator (2) connected to the three-phase cascaded H bridge. Each phase of the three-phase cascaded H bridge is formed by cascade connection of a plurality of H-bridge power units (1). The H-bridge power units (1) include four power devices including electric reactors and heat radiators installed at the electric reactors; and the outsides of the electric reactors are sealed by using insulating sealants. All H-bridge power units (1) are arranged in the same electric cabinet; and the space of the electric cabinet is divided into a plurality of cooling channels by isolation slots in a crisscrossed mode; and the heat radiators and the electric reactors are distributed in the corresponding cooling channels. Compared with the prior art, the compact high-voltage power quality optimization device has advantages of high space utilization rate, small size, and real-time monitoring.

Description

technical field [0001] The invention relates to a power reactive compensation device, in particular to a compact high-voltage power quality optimization device. Background technique [0002] There are many situations in the distribution line, such as distributed distribution transformers, many installation points, and long lines. Due to the influence of factors such as day and night loads, seasonal load changes, power supply radius, and load distribution, it often causes large fluctuations in line voltage. Changes will seriously affect the quality and reliability of line power supply. Therefore, the power quality optimization device is required to output inductive or capacitive reactive power according to the load conditions to compensate large-capacity loads and achieve the purpose of reactive power management. The power quality optimization device is usually implemented by cascading H power units. However, the existing power quality compensation device has the problem of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18
CPCY02E40/30H02J3/1857
Inventor 舒观澜戴维夏青
Owner LIVESINE ELECTRIC SHANGHAI CO LTD
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