Dynamic characteristic test system for single-phase controllable shunt reactor
A technology of dynamic characteristics and testing systems, applied in the direction of instruments, measuring electronics, measuring devices, etc.
Inactive Publication Date: 2015-07-15
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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The dynamic characteristics of the thyristor-controlled transformer-type controllable shunt reactor are related to the formulation of the control and protection strategy of the thyristor-controlled transformer-type controllable shunt reactor and the configuration of related parameters, and the same or similar thyristor-controlled transformer type has not been seen in the existing technology Single-phase controllable shunt reactor dynamic characteristic test system
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[0017] The present invention provides a single-phase controllable shunt reactor dynamic characteristic test system, and the embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.
[0018] A thyristor-controlled transformer-type single-phase controllable shunt reactor dynamic characteristics testing system such as figure 1 As shown, the thyristor-controlled transformer-type single-phase controllable shunt reactor body is a single-phase three-winding structure, including primary winding 1, secondary winding 2 and filter winding 3, and primary winding 1 passes through its outlet circuit breaker K 1 Connected to the AC power supply 4, the secondary winding 2 passes through its outlet circuit breaker K 2 and two antiparallel thyristors T 1 , T 2 Connected, filter winding 3 through its outlet circu...
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The invention belongs to the technical field of application of a power system, and relates to a dynamic characteristic test system for a single-phase controllable shunt reactor. The single-phase controllable shunt reactor comprises a primary winding, a secondary winding and a filtering winding, wherein the primary winding is connected with an alternating current power supply through an outgoing breaker I; the secondary winding is connected with two anti-parallel thyristors through an outgoing breaker II; the filtering winding is connected with a filter bank through an outgoing breaker III; a single-chip microcomputer controller dynamically and independently controls conduction angles of the two anti-parallel thyristors respectively in time sequence, and dynamically and independently controls opening and closing of the outgoing breakers of the three winding structures respectively in time sequence. The conduction state of the anti-parallel thyristors and the opening-closing state of the outgoing breakers can be controlled accurately and dynamically, so that the operation state of a transformer type single-phase controllable shunt reactor can be controlled through accurate and dynamic control of the thyristors, and related dynamic current and voltage of the thyristors for controlling the transformer type single-phase controllable shunt reactor can be recorded in real time.
Description
technical field [0001] The invention belongs to the technical field of power system application, and in particular relates to a dynamic characteristic testing system of a single-phase controllable shunt reactor. Background technique [0002] In order to meet the demand for future power growth, it is necessary to use UHV AC transmission technology for long-distance and large-scale power transmission. Due to the huge capacitive charging power, drastic power flow changes, and limited insulation margin of UHV AC transmission lines , thus putting forward higher requirements for reactive power regulation and overvoltage suppression of the grid system. Traditional reactive power compensation devices such as ordinary high-voltage shunt reactors and static var compensators are mostly unable to meet the needs of overvoltage suppression and reactive power regulation at the same time, but controllable shunt reactors can well meet this demand. [0003] From the perspective of the demand...
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IPC IPC(8): G01R31/00
Inventor 李琳杨光贾青袁晓冬史明明
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)