GY-ASVG-SiC-based Advanced Static Var Generator
GY-ASVG-SiC based Advanced Static Var Generator is a next-generation power quality solution powered by advanced silicon carbide (SiC) semiconductor technology. By utilizing high-performance SiC power devices, it delivers dynamic reactive power compensation, harmonic mitigation and three-phase unbalance correction with ultra-high efficiency exceeding 98.5%, reduced power losses and faster response performance.
Featuring a high-density modular design, GY-ASVG-SiC supports wall-mounted and rack-mounted installation with multi-module parallel expansion up to 800kvar. It provides reliable and efficient power quality management for industrial power systems requiring high efficiency, fast dynamic control and long-term stable operation.
•Advanced SiC Semiconductor Technology — Powered by high-performance silicon carbide (SiC) power devices, GY-ASVG-SiC significantly reduces switching losses and achieves ultra-high system efficiency of over 98.5% for energy-efficient power quality management.
•Integrated Power Quality Correction — Combines reactive power compensation, harmonic mitigation and three-phase unbalance correction in one advanced solution, providing reactive compensation accuracy ≥99%, harmonic filtering efficiency ≥95% for 2nd to 50th harmonics, and unbalance correction ≤5%.
•High-Density Modular Expansion — Designed with a compact modular architecture, GY-ASVG-SiC supports flexible system expansion through multiple modules connected in parallel, achieving capacity expansion up to 800kvar while simplifying installation and maintenance.
•High-Speed Intelligent Control — Equipped with DSP+CPLD full-digital control technology and advanced power control algorithms, the system provides precise dynamic compensation with reactive response time <10ms and harmonic response time <40ms.
•Enhanced Neutral Current Management — Provides advanced zero-sequence current compensation capability for three-phase four-wire systems, improving grid stability and protecting sensitive electrical equipment from power quality disturbances.
Product Features
Overview
Silicon Carbide Enhanced Static Var Generator (GY-ASVG-SiC)
Using silicon carbide (SiC) power devices as the core, the GYASVG-SiC connects a voltage source converter (VSC) to the power grid via a filter in parallel. Its working principle is to detect the load current in real time and, based on advanced detection and control algorithms for reactive power, harmonics, and three-phase active power, generate corresponding IGBT drive signals to achieve comprehensive compensation of reactive current, harmonic current, and three-phase unbalanced active power. In addition, the device achieves a peak efficiency of over 98.5%. A single cabinet can accommodate up to 8 modules, with a maximum capacity of 800 kvar, offering easy installation and maintenance.
Performance characteristics
1)DSP+CPLD full-digital control core, three-level topology technology.
2)Reduced module losses, improved module efficiency; peak efficiency up to 98.5% or higher.
3)High power density modular design; a single cabinet can accommodate 8 modules with a maximum capacity of 800 kvar, easy installation and maintenance.
4)Equipped with two external current sampling channels, supporting various compensation modes such as low-voltage side sampling with low-voltage side compensation, highvoltage
side sampling with low-voltage side compensation, and reactive component compensation.
5)Higher switching frequency control algorithm reduces output ripple current and improves dynamic response speed.
6)Utilizes the higher voltage withstand capability of SiC power devices while simplifying thermal design and electromagnetic compatibility (EMC) design, enhancing product reliability.
7)Reactive power compensation capability: compensation rate ≥99%.
8)Unbalance compensation capability: unbalance degree after compensation ≤5%.
9)Current harmonic compensation capability: compensation rate ≥95%; 2nd to 50th harmonics, individual compensation rate adjustable.
10)Neutral line zerosequence current filtering capacity is three times that of the phase line.
11)Supports 100% current-limiting output to ensure long-term stable operation of the equipment.
12)Supports any one, any two, or all three of reactive power compensation, harmonic compensation, and three-phase unbalance compensation as selectable options.
Technical Parameter
| Model | 220V | 380V |
| 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%) | AC380V (-20%~+20%) |
| Operating frequency | 50Hz/60Hz (45Hz~63Hz) | |
| Rated compensation capacity | 37Kvar、50Kvar | 75Kvar、100Kvar |
| Grid configuration | Three‑phase three‑wire, Three‑phase four‑wire | |
| Number of parallel units | No restrictions | |
| Overall efficiency | ≥98% | |
| Switching frequency | 16kHz | |
| Function selection | A、B、A+B、B+A、B+C、A+C、B+C+A、A+C+B | |
| Reactive compensation rate | Reactive power compensation ≥99% | |
| Unbalance compensation capability | Unbalance degree after compensation ≤5% | |
| Current harmonic compensation capability | Current harmonic compensation ≥95% | |
| Neutral line filtering capability | Neutral line filtering capacity is 3 times that of phase filtering capacity | |
| Full response time | Reactive power <10ms, Harmonics <40ms | |
| Cooling mode | Forced air cooling | |
| Noise level | ≤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, resonance 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) | |
| Size (W*D*H) | 500*730*240mm | |
| Electromagnetic Compatibility | EMC‑ RE and CE meet Class A test standard | |
A:Reactive compensation B:Harmonic compensation
C:Three-phase unbalance compensation
User Manual
Frequently Asked Questions About GY-ASVG-SiC SiC-based Advanced Static Var Generator
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