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Decoupling control system and method of hybrid reactive compensation system

A hybrid reactive power compensation and decoupling control technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, etc., can solve the problems of poor regulation characteristics, inability to realize independent adjustment of active and reactive components, etc. Achieve high practical value

Inactive Publication Date: 2016-03-30
NANJING APAITEK TECH
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Problems solved by technology

However, the paper does not involve the content of decoupling control. Due to the mutual coupling of active current and reactive current, as well as the disturbance of the power grid, the regulation characteristics are deteriorated, and the independent regulation of active and reactive components cannot be realized.

Method used

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  • Decoupling control system and method of hybrid reactive compensation system
  • Decoupling control system and method of hybrid reactive compensation system
  • Decoupling control system and method of hybrid reactive compensation system

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Embodiment Construction

[0017] Such as figure 1 As shown, the present invention discloses a decoupling control system of a hybrid reactive power compensation system, including: a current conditioning circuit, a reactive current detection circuit, a vector decoupling control circuit, a passive compensator and an active compensator electrically connected in sequence .

[0018] The reactive current detection circuit includes a voltage sensor and a Hall current sensor, and the voltage sensor and the Hall current sensor are connected with a current conditioning circuit.

[0019] The vector decoupling control circuit includes current feedback and grid disturbance voltage.

[0020] A decoupling control method for a hybrid reactive power compensation system, comprising the following steps:

[0021] S1. Detect the reactive current on the system side through the hybrid reactive power compensation controller;

[0022] S2. Analyze the magnitude and direction of the reactive current;

[0023] S3, the active m...

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Abstract

The invention provides a decoupling control system and method of a hybrid reactive compensation system. The decoupling control system comprises a reactive current detection circuit, a vector decoupling control circuit, a current conditioning circuit, a reactive compensator and an active compensator which are sequentially and electrically connected. With the decoupling control system and method provided by the invention, the response speed of the traditional reactive capacitor cabinet is increased, the compensation accuracy of the traditional reactive capacitor cabinet is improved, and the cost of an active module is reduced.

Description

technical field [0001] The present invention relates to a decoupling control system and method of SVG++ (hybrid reactive power compensation system), and more specifically relates to a decoupling control system and method of a hybrid reactive power system based on a specified power factor. Background technique [0002] With the rapid development of the economy, some small and medium-sized enterprises have increased the power load or load utilization rate in order to meet the increase in production, resulting in the deteriorating power quality of the grid. Especially for small-capacity power grids, voltage fluctuations and three-phase imbalances caused by impact loads endanger the normal power consumption of other users of the same power grid. Therefore, with the gradual increase of power grid load, the requirements for power quality are getting higher and higher. SVG++ (hybrid reactive power compensator) is a new generation of reactive power compensator, which is equivalent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18
CPCY02E40/30H02J3/18
Inventor 张明花跃学葛文海芮国强仇志凌张东
Owner NANJING APAITEK TECH
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