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GY-ASVG Advanced Static Var Generator
GY-ASVG Advanced Static Var Generator is a modular power quality management solution designed for industrial and commercial electrical systems. Based on DSP+CPLD full-digital control technology and three-level topology, it provides configurable compensation for reactive power, 2nd–50th order harmonics and three-phase unbalance.
Supporting a wide voltage range from 220V to 800V and modular capacities from 3kvar to 150kvar, GY-ASVG delivers ultra-fast dynamic response with reactive power response time <10ms and harmonic response time <40ms. With unlimited parallel expansion, rack-mounted or wall-mounted installation options, and dual RS485 & Wi-Fi communication, it provides flexible and reliable power quality improvement for industrial facilities, EV charging systems, data centers and renewable energy applications.
•Wide Voltage & Capacity Range — Supports AC220V to 800V grid systems with modular capacities from 3kvar to 150kvar, providing flexible solutions for various power applications.
•3-in-1 Power Quality Control — Combines reactive power compensation, harmonic filtering (2nd–50th order) and three-phase unbalance correction with selectable function configurations.
•High-Precision & Fast Response — Delivers reactive compensation accuracy ≥99%, harmonic filtering efficiency ≥95%, with ultra-fast response times of <10ms for reactive power and <40ms for harmonics.
•Advanced Neutral Line Filtering — Provides enhanced zero-sequence current compensation up to 2× phase-line current, improving stability in three-phase four-wire systems.
•Modular & Flexible Design — Supports unlimited parallel expansion with rack-mounted or wall-mounted installation options for easy system integration.
•Smart Communication & Protection — Equipped with dual RS485 and Wi-Fi communication, IP20 protection (IP54 optional), and 1.2× overload capability for reliable operation.
Product Features
Overview
The working principle of the Enhanced Static Var Generator (GYASVG) is to connect the voltage source inverter in parallel to the power grid through a filter. Its working principle is to detect the current of the load in real time, based on advanced detection and control algorithms for reactive power, harmonics, and three-phase active power, and generate corresponding IGBT drive signals to achieve comprehensive compensation for reactive current, harmonic current, and three-phase unbalanced current.
Performance characteristics
1) DSP+CPLD full digital control core, three-level topology technology.
2) Modular design allows multiple modules to be connected in parallel, with small footprint and easy maintenance.
3) The independent air duct and independent plate compartment structure design ensure the stable operation of the equipment.
4) It has two external current sampling channels and can support various compensation methods such as low-voltage side sampling, low-voltage side compensation, high-voltage side sampling, and reactive power component compensation.
5) Support any one, two or three combinations of reactive power compensation, harmonic compensation, and three-phase imbalance compensation.
6) Reactive power compensation capability: compensation rate ≥ 99%.
7) Unbalance compensation capability: The imbalance degree after compensation is ≤ 5%.
8) Current harmonic compensation capability: compensation rate ≥ 95%; 2-50 times, with adjustable compensation rate per time.
9) The zero sequence current filtering capability of the neutral line is twice that of the phase line (three times can be customized).
Technical Parameter
| Model | 220V | 220V | 380V | 500V | 690V | 800V | |
| Altitude | <2000m; above 2000 m, derate according to GB/T 3859.2 | ||||||
| Ambient temperature | -10 ~ +50℃ (above 40 ℃, capacity derating ≤30%) | ||||||
| Relative humidity | ≤90% relative humidity, no condensation on the surface at a monthly minimum temperature of 25 ℃ | ||||||
| Pollution degree | Pollution degree ≤ Class III | ||||||
| Operating voltage | AC220V (-20%~+20%) | AC220V (-20%~+20%) | AC380V (-20%~+20%) | AC500V (-20%~+20%) | AC690V (-20%~+15%) | AC800V (-20%~850V Max) | |
| Operating frequency | 50Hz/60Hz (45Hz~63Hz) | ||||||
| Rated compensation capacity | 5Kvar | 3/5/7/10/17/25/ 37/50/75Kvar |
5/10/15/20/35/50/ 75/100/150Kvar |
90Kvar | 120Kvar | 150Kvar | |
| Grid configuration | L/N | Three‑phase three‑wire, Three‑phase four‑wire | Three‑phase three‑wire | ||||
| Number of parallel units | No restrictions | ||||||
| Overall efficiency | ≥97% | ||||||
| Switching frequency | 32kHz | 16kHz | 12.8kHz | ||||
| Function selection | A、B、A+B、B+A | A、B、A+B、B+A、B+C、A+C、B+C+A、A+C+B | A、B、A+B、B+A | ||||
| Reactive compensation rate | Reactive power compensation ≥99% | ||||||
| Unbalance compensation capability | No | Unbalance degree after compensation ≤5% | No | ||||
| Neutral line filtering capability | The neutral line filtering capability is twice that of the phase filtering capability (3 times can be customized) | ||||||
| Full response time | Reactive power <10ms, harmonic <40ms | ||||||
| Noise level | ≤60dB | ≤65dB | |||||
| Communication method | 2 RS485 communication interfaces (Wi‑Fi supported) | ||||||
| Protection functions | Overload, software/hardware overcurrent, grid over‑undervoltage, grid voltage unbalance, power supply failure, overtemperature, frequency anomaly, short‑circuit protection, etc. | ||||||
| Overload capability | Rated overload 1.2 times for 60 seconds | ||||||
| Installation method | Rack‑mount / Wall‑mount | ||||||
| Cable entry | Rack‑mount: rear cable entry; Wall‑mount: top cable entry | ||||||
| Protection rating | IP20 (IP54 available on request / customizable) | ||||||
A:Reactive compensation B:Harmonic compensation C:Three-phase unbalance compensation
User Manual
Frequently Asked Questions About GY-ASVG Advanced Static Var Generator
What is an Advanced Static Var Generator (ASVG)?
An Advanced Static Var Generator (ASVG) is an intelligent power quality management device that provides dynamic reactive power compensation, harmonic compensation and three-phase unbalance correction. It uses advanced power electronics and digital control technology to improve electrical system stability and efficiency.
What functions can GY-ASVG provide?
GY-ASVG integrates multiple power quality compensation functions, including reactive power compensation, harmonic compensation and three-phase unbalance compensation. It can effectively improve power factor, reduce harmonic distortion and enhance overall power quality.
What is the compensation performance of GY-ASVG?
GY-ASVG provides high-precision compensation with a reactive power compensation rate of ≥99% and current harmonic compensation capability of ≥95%. It supports harmonic compensation from the 2nd to 50th order with adjustable compensation rates.
How fast is the response time of GY-ASVG?
GY-ASVG provides rapid dynamic compensation with a reactive power response time of less than 10ms and harmonic compensation response time of less than 40ms, allowing it to quickly adapt to changing electrical loads.
What is the difference between GY-ASVG and traditional SVG?
Compared with traditional SVG devices, GY-ASVG provides more comprehensive power quality management by combining reactive power compensation, harmonic suppression and three-phase unbalance correction in one system. It delivers higher compensation accuracy and wider application flexibility.
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GY-ASVG Advanced Static Var Generator Structure Details
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