Static Synchronous Compensator (STATCOM)
Static Synchronous Compensator (STATCOM) is the most advanced dynamic reactive power compensation technology. The STATCOM can be regarded as a voltage source converter, which can instantly and automatically compensate the reactive power through injecting the controllable reactive current (capacitive or inductive) to improve the power factors, reduce power loss and achieve voltage stability.
Trasient voltage control
Smaller footprint
Grid friendliness
Stronger performances
IEEE
IEC
Features
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01
Trasient voltage control
Real-time system voltage regulation of grid point of connecting to ensure both transient and steady-state voltage stability.
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02
Smaller footprint
STATCOM uses advanced power electronics such as IGBT which are much more compact and modular in design. Compared with SVC or Fixed capacitors, it doesn't need large passive components like which require more physical space. STATCOM typical footprint is approximately 30-50% smaller with the same rating.
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Grid friendliness
During grid system faults, STATCOM can realize voltage and frequency ride through and continue contributing trasient voltage and reactive power to support system stability.
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04
Stronger performances
STATCOM is very strong in control accuracy and speed with only ≤5ms reponse time, excellent in harmonics characteristics. The total harmonic current content of 35kV STATCOM is ≤0.6%In. STATCOM also outperform in V/I characteristics. The output capacity of STATCOM remains unchanged even at very low voltage dips. Furthermore, STATCOM can provide extensible solutions for power oscillations damping, active power filtering, imbalance control, etc.
Technical Specifications
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Rated voltage（PCC)
66kV - 750kV
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Rated voltage（POC)
6kV - 66kV
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Rated capacity
Single Set: 0.5Mvar~400Mvar
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Rated frequency
50/60Hz
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Response time
≤5ms
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Type
Cascaded H-Bridge（CHB)
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Redundancy
Single-phase standard N-1, redundancy up to 10%
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Cooling method
Airtight liquid cooling + airtight air-con
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Layout
Indoor / Outdoor
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Operation modes
Constant power factor / Constant reactive power / Voltage control mode / Voltage/Frequency ride thru / Transient voltage support
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Extensible solutions
Power oscillation damping / Active power filtering / Imbalance control, etc.
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Operating temperature
-40°C to +50°C
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Harmonic characteristics
Total output harmonic distortion rates ≤ 3%
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Altitude
5000m
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