Static reactive compensation system for far-end compensation and control method of system

A static var compensation and control method technology, applied in the direction of reactive power compensation, reactive power adjustment/elimination/compensation, etc., can solve the problem that the remote system cannot be accurately compensated, so as to prevent over-compensation or under-compensation, adapt to strong effect

Active Publication Date: 2017-04-26
NR ELECTRIC CO LTD +3
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Problems solved by technology

[0005] The purpose of the present invention is to provide a static var compensation system for remote compensation and its control method, which can effectively solve the problem that the remote system cannot be accurately compensated, improve the power factor of the remote system, and greatly improve the Practicability of Static Var Compensation System

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  • Static reactive compensation system for far-end compensation and control method of system
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  • Static reactive compensation system for far-end compensation and control method of system

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Embodiment Construction

[0028] The technical solutions and beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, the present invention provides a static var compensation system for remote compensation, including a near-end static var compensation device, a remote measurement unit and a communication unit, wherein the near-end static var compensation device is connected to The near-end system is connected to the remote power system through a power transmission line, including a control unit C1, an execution unit P1, and a near-end measurement unit M1; the remote measurement unit M2 is configured in the remote power system to detect remote wireless function to control the voltage and current of the target side; the communication unit includes a near-end communication unit T1 arranged at the near-end and a far-end communication unit T2 arranged at the far-end, and transmits the measured value of th...

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Abstract

The invention discloses a static reactive compensation system for far-end compensation and a control method of the system. The system comprises a near-end static reactive compensation device, a far-end measuring unit and a communication unit; the near-end static reactive compensation device comprises a control unit, an execution unit and a near-end measuring unit; the far-end measuring unit is configured in a far-end power system, and is used to detect the voltage and current of a target side of far-end reactive control; the communication unit comprises a near-end communication unit and a far-end communication unit connected with the near-end communication unit via a communication channel; and a measuring value of the far-end measuring unit is transmitted to the control unit of the near-end static reactive compensation device via the far-end communication unit and the near-end communication unit, and the control unit carries out calculation according to the transmitted measuring value of the far-end system, and then issues a control command to the execution unit of the near-end static reactive compensation device. Thus, the problem that the far-end system is incapable of accurate compensation is solved effectively, a power factor of the far-end system is improved, and the practicality of the static reactive compensation system is improved greatly.

Description

technical field [0001] The invention belongs to the field of power electronics, in particular to a static var compensation system for remote compensation and a control method thereof. Background technique [0002] Static var compensation system has been widely used in power transmission system, distribution network, new energy power generation, rail transit and industrial and mining enterprises, which can effectively improve the stability of grid voltage on the access system side and improve power quality. [0003] At present, the conventional static var compensation system is connected to the near-end power system, collects the voltage and current of the near-end system, calculates the required reactive power and outputs the corresponding reactive power compensation, and it is easy to accurately and effectively realize the reactive power of the near-end system. power compensation. However, in some special occasions, such as when the reactive power compensation assessment p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18
CPCH02J3/18Y02E40/30
Inventor 魏星李钊谢晔源盛晓东葛健邱金辉杨飞贾松江宋进良李丽群刘君
Owner NR ELECTRIC CO LTD
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