Static Var Generator (SVG) 400V-690V for Dynamic Reactive Power Compensation - China Suppliers & Factory
1. Product Overview
Static Var Generator (SVG) is widely used in high-voltage AC/DC transmission and transformation systems, as well as industrial and transportation distribution networks such as metallurgy and electrified railways. Its main function is to improve the operating conditions of the power supply and distribution network, enhance the reliability of the transmission and distribution system, suppress system voltage fluctuations, reduce pollution caused by harmonic currents on the power grid, and improve the power factor of the system.
The existence of reactive power poses various problems and challenges to power transmission and distribution systems and heavy industry applications. Power transmission and distribution face problems such as voltage fluctuations, low power factor, and voltage instability; Heavy industrial applications, especially fast and impulsive loads, may lead to power quality issues such as voltage imbalance, voltage fluctuations, and flicker in the power supply network. Dynamic reactive power compensation can solve these problems.
2. Working principle
The basic principle of SVG is to connect a Voltage Source Converter (VSC) in parallel with a reactor or transformer on the power grid. By adjusting the amplitude and phase of the output voltage on the AC side of the inverter, or directly controlling the amplitude and phase of the AC side current, the required reactive power can be quickly absorbed or emitted, achieving the goal of quickly and dynamically adjusting reactive power. When using direct current control, directly controlling the AC side current can not only track and compensate for the impulse current of the load, but also track and compensate for the harmonic current.
Consider the system as a voltage source, SVG as a controllable voltage source, and transformer as an equivalent connected reactor. Composed of LCD touch screen, control unit, VSC inverter, DC power supply, connecting reactor, circuit breaker and other auxiliary devices.
4. Functional characteristics of the device
As a dynamic Snoan technology, KH-LSVG has the following technical characteristics:
- Real time tracking and dynamic compensation
- Multi functional, while addressing multiple power quality issues
- Power unit modular design
- DSP intelligent control
- Small size and light weight
- Comprehensive protection and diagnosis
The existence of reactive power poses various problems and challenges to power transmission and distribution systems and heavy industry applications. Power transmission and distribution face problems such as voltage fluctuations, low power factor, and voltage instability; Heavy industrial applications, especially fast and impulsive loads, may lead to power quality issues such as voltage imbalance, voltage fluctuations, and flicker in the power supply network. Dynamic reactive power compensation can solve these problems.
Office buildings, commercial buildings; Schools and hospitals; Mobile communication; Residential buildings; The calculation information center.
Automotive manufacturing; Rail transit; Intermediate frequency furnace and electric arc furnace; Chemistry and pharmaceuticals; Power electronics; Paper making and printing, etc.
Frequently Asked Questions (FAQ)
A Static Var Generator (SVG) is a device widely used in high-voltage AC/DC transmission and transformation systems, as well as industrial and transportation distribution networks (such as metallurgy and electrified railways) to improve power supply quality and system reliability.
It improves operating conditions by enhancing the reliability of the transmission and distribution system, suppressing system voltage fluctuations, reducing harmonic current pollution, and improving the overall power factor of the system.
It connects a Voltage Source Converter (VSC) in parallel with a reactor or transformer on the grid. By adjusting the amplitude and phase of the output voltage or directly controlling the AC side current, it quickly absorbs or emits reactive power to dynamically adjust the system.
The system is composed of an LCD touch screen, a control unit, a VSC inverter, a DC power supply, a connecting reactor, a circuit breaker, and other auxiliary devices.
The KH-LSVG features real-time tracking and dynamic compensation, multi-functional power quality addressing, a modular power unit design, DSP intelligent control, small size, light weight, and comprehensive protection and diagnosis.
It is suitable for commercial areas like office buildings, schools, hospitals, residential buildings, and data centers, as well as heavy industrial loads including automotive manufacturing, rail transit, electric arc furnaces, chemistry, pharmaceuticals, power electronics, and paper making.
HEADING-TYPE-1
High voltage parallel capacitors are suitable for parallel connection in AC power systems with power frequency (50Hz or 60Hz) of 1kV and above. They are used to compensate for inductive reactive power, improve power factor, improve voltage quality, reduce line losses, and fully utilize the efficiency of power generation and supply equipment.
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HEADING-TYPE-1
High voltage parallel capacitors are suitable for parallel connection in AC power systems with power frequency (50Hz or 60Hz) of 1kV and above. They are used to compensate for inductive reactive power, improve power factor, improve voltage quality, reduce line losses, and fully utilize the efficiency of power generation and supply equipment.
description2