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A Distributed Synchronous Series Compensator

A series compensation and distributed technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve the problems of high technical requirements for operation and maintenance, failure to meet the power network trend, high manufacturing and installation costs, etc., to improve the reliability of power supply performance, light weight and low cost

Active Publication Date: 2018-12-04
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned traditional types of FACTS compensation devices have a common feature, that is, centralized compensation. A point on the line is selected to install compensation equipment. This type of compensation device has a large capacity, a complex structure, a large footprint, and complex protection and control.
High manufacturing and installation costs and high technical requirements for operation and maintenance restrict their popularization and application in power systems, failing to achieve the purpose of controlling the power flow of the entire power network

Method used

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  • A Distributed Synchronous Series Compensator
  • A Distributed Synchronous Series Compensator
  • A Distributed Synchronous Series Compensator

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Embodiment Construction

[0051] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0052] Such as figure 1 as shown, figure 1 It is a schematic diagram of a distributed synchronous series compensator installed on a transmission line in this embodiment. In the figure, the compensator is evenly connected in series along the route to the compensated transmission line.

[0053] In this embodiment, n compensators are provided for each phase, and 3n compensators are provided in total for the A, B, and C three-phase lines. The compensator is connected and communicated with the main control room server through the mobile communication network (GPRS / CDMA). The compensator receives the instructions issued by the dispatcher, and at the same time uploads its own status information to the main control room server with a time stamp.

[0054] Such as figure 2 as shown, figure 2 In this embodiment, the distributed synchronou...

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Abstract

The invention provides a distributed synchronization serial compensator. The compensator comprises a compensation module, a control module and a communication module, wherein the compensation module comprises a coupling transformer, a single-phase full-bridge inverter, a DC energy storage capacitor, a reactor and a bypass switch; the control module comprises a control circuit and a power supply circuit; and the communication module comprises a wireless communication assembly and a GPS assembly. The distributed synchronization serial compensator can effectively adjust the trend of a power transmission line, reduce the loss of a power transmission network and improve the power supply reliability.

Description

technical field [0001] The invention relates to a system in the field of power system power flow control, in particular to a distributed synchronous series compensator. Background technique [0002] In order to achieve the purpose of distributing the power flow in the system to each line in the network in an optimal way, the flexible AC transmission system (FACTS) usually needs to install various compensation devices, such as thyristor controlled series ), Static Synchronous Compensator (STATCOM), Static Synchronous Series Compensator (SSSC), Unified Power Flow Controller (UPFC), etc. These FACTS devices are either connected in series in the transmission line or connected in parallel on the busbar, and achieve the purpose of controlling the power flow of the line by changing the impedance of the series-connected line or the voltage of the busbar. [0003] The above-mentioned traditional type FACTS compensation devices have a common feature, that is, centralized compensation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
Inventor 崔虎宝荆平周飞陆振纲
Owner STATE GRID CORP OF CHINA
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