GY-ASVG-SiC-based Advanced Static Var Generator
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
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