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Harmonic wave and idle dynamic management controller suitable for high pressure system and control method

A high-voltage system and controller technology, applied to harmonic reduction devices, flexible AC transmission systems, and AC networks to reduce harmonics/ripples, etc., can solve the problem of not being able to meet reactive power dynamic compensation, and not having SVC positive and negative continuous adjustment Reactive power and other issues, to achieve the effect of improving control performance, improving SVC reactive power compensation performance, and compensating reactive power

Active Publication Date: 2010-11-10
HUNAN UNIV
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  • Abstract
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Problems solved by technology

Compared with SVC, active power filter can only compensate reactive power with fixed capacity, does not have the ability of SVC to continuously adjust reactive power, and cannot meet the requirements of reactive power dynamic compensation, and the combination of SVC and source power filter The use can meet the requirements, but the joint operation of the two also brings a new problem, that is, how to make the system run stably and have better control performance

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  • Harmonic wave and idle dynamic management controller suitable for high pressure system and control method
  • Harmonic wave and idle dynamic management controller suitable for high pressure system and control method
  • Harmonic wave and idle dynamic management controller suitable for high pressure system and control method

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Embodiment Construction

[0025] see figure 1 , figure 1 The device for applying the harmonic and reactive power dynamic comprehensive treatment of the present invention. It is mainly composed of three parts: resonant injection hybrid active power filter, thyristor controlled reactor, and mechanical switching capacitor. The resonant injection hybrid active power filter includes an active power filter and a passive filter bank, and the phase A injection branch is composed of an injection capacitor C F , inductance L 1 , capacitance C 1 connected in series to form a single-tuned filter, and then through the switch S 1 connected to the grid, where the inductance L 1 , capacitance C 1 A phase fundamental resonant circuit is formed in series; capacitor C 5 , inductance L 5 series as a single-tuned filter, through the switch S 2 Connected to the grid; L H 、C H and R H form a second-order high-pass filter, through the switch S 3 Connect to the grid. The active part of the RIHAPF is filtered by t...

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Abstract

The invention discloses a harmonic wave and idle dynamic management controller suitable for a high pressure system and a control method. The harmonic wave and idle dynamic management controller suitable for the high pressure system comprises an industrial personal computer (IPC), a signal detecting and processing circuit, a resonance hybrid injection active power filter, a thyristor controlled reactor(TCR) and a mechanical switched capacitor, wherein the resonance hybrid injection active power filter is used for managing power grid harmonic current, and the TCR and the mechanical switched capacitor are used for realizing real-time dynamic reactive powder compensation. The invention can realize dynamic real-time management and compensation for the power grid harmonic current and the power grid inductive or capacitive reactive power, improves the tracking control accuracy of the active power filter, enhances reactive compensation performance of an SVC, realizes real-time dynamic reactive power compensation and management on the power grid harmonic current, and simultaneously and preferably ensures the stability of the system.

Description

technical field [0001] The invention relates to a harmonic wave and reactive power dynamic control controller and a control method suitable for high-voltage systems. Background technique [0002] With the development of economy and society, problems such as low power factor and harmonic pollution of power distribution system have seriously affected the economic benefits of power companies and other enterprises. It is urgent to install low-cost and large-capacity dynamic reactive power compensation and Harmonic control device. The static var compensator, active power filter and other reactive power compensation and harmonic control devices and their management platforms have become the focus of current research. [0003] As the key equipment for reactive power compensation and harmonic control, the resonant injection hybrid active power filter plays a very important role in the power system. It can perform large-capacity reactive power compensation and harmonic dynamic contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/01H02J3/18
CPCY02E40/40Y02E40/22Y02E40/12Y02E40/10Y02E40/20
Inventor 罗安吴敬兵吴传平杨晓峰马伏军方璐吕志鹏
Owner HUNAN UNIV
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