Wind power full power converter

Based on the research of multiyear converter products, Xinneng Power introduced modularized independent DC bus full-power fan converter and modular fan converter with integrated water cooling system based on IGBT. Suitable for 2.0 and 2.5 MW direct-drive wind turbines. The reliability and maintainability of converter are greatly improved by modular design and integration of water cooling system. Through the integration design, reduce the size of the whole machine and reduce the cost of the whole machine; Through the internal integration of the Chopper resistance module, it can completely meet the low voltage crossing requirements.

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Description

Product parameter

Specification	NW12000FP/B common modular wind power converter	NW12500FP/B common modular wind power converter	NW12000FP/I integrated modular wind power converter	NW12500FP/I integrated modular wind power converter
Rated power	2.0MW	2.5MW	2.0MW	2.5MW
Rated capacity	2.1MVA	2.63MVA	2.1MVA	2.63MVA
Single module capacity	750kW	750kW	750kW	750kW
Qty. of module	6	8	6	8
Cooling mode	External water cooling system		Internal integrated water cooling system
Overall size of device/mm（WxDxH）	125012002450	150012002450	125012002450	170012002450
Module size/mm（WxDxH）	210450610
Efficiency	≥97%
Noise	≤70dB
IP grade	IP54
Communication protocol	CAN Bus、Profi Bus
Rated voltage	AC 690V
Voltage fluctuation range	-20%~10%
Rated frequency	50Hz
Frequency fluctuation range	47~53 Hz
Rated output current	1760A	2200A	1760A	2200A
Max. output current	2250A	2812A	2250A	2812A
Overload ability	300s for 1.05 times, 60s for 1.1 times
Adjustment range of power factor	-0.95~0.95
Rated voltage	AC 690V
Rated input current	1760A	2200A	1760A	2200A
Max. output current	2250A	2812A	2250A	2812A
Device-side voltage change ratio du/dt	≤1000V/us
Operating ambient temperature （℃）	-30~50
Storage ambient temperature（℃）	-40~70
Relative humidity	≤95%
Operating altitude	≤2000m
Low-voltage ride-through mode	DC-side Crowbar circuit
Low-voltage ride-through ability	Meet GB/T 1963-2011 Technical rule for connecting wind farm to power system
Protection function	Overheating protection, device-side overvoltage protection, network-side overvoltage protection, DC busbar over- and under-voltage protection, overcurrent protection, overspeed protection, converter overtemperature protection, ground fault protection, short-circuit protection, and three-phase imbalance protection

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