Wind Turbine Electric Pitch Control System

Product Description

Product Description
As one of the core parts in the large-scale wind turbine control system, pitch control system plays a very important role in the safe, stable and efficient operation of the wind turbine. By adjusting the pitch angle of the blades, the pitch system changes the attack angle of the airflow on the blades, and then controls the aerodynamic torque and power captured by the wind turbine.
The pitch control system from Shiyou electric adopts a series of redundant safe and reliable designs to ensure the safety, reliability and high utilization of turbine, it meets the requirements of plateau, high humidity, salt spray, ultra-low temperature and other operating environments, complies with the specification of Low Voltage Ride Through (LVRT) and High Voltage Ride Through (HVRT), and obtains the certification from CE, ETL and CGC.
Key features: It has achieved multiple patents and software copyrights. Multiple redundant technologies for maximum safety, each pitch axis has been carefully designed to ensure the safe operation of each blade. Each blade has independent motor control, independent back-up power supply, independent control cabinet and cabling; integrated rotor speed measurement in active safety device. Complete system self-diagnostics to detect sensor faults, actuator faults and backup power failures. Complete drive protection with self-protection in the event of the following drive faults and upload fault information to the main control system: DC bus low voltage, DC bus overvoltage, drive over current, drive over temperature, power switch failure, abnormal internal power supply, brake resistor circuit failure, internal fan failure. It has perfect protection function for pitch motor, and the system can protect itself when the pitch motor has over temperature, over current, stall protection and abnormal braking faults, and can upload the fault information to the main control system. Low Voltage Ride Through (LVRT) and High Voltage Ride Through (HVRT) compliant. Drive, controller and charger in one unit. High efficiency, high power density, and heavy duty permanent magnet synchronous motors. Long life supercapacitors, safe and reliable backup power management, high-precision supercapacitor detection. Complete temperature control system, adapted to cold and hot weather. Monitoring key operating parameters of the pitch system such as current, temperature, etc. Intelligently analyzing the health of the pitch system. Detailed Photos
Product Parameters

Item	Technical parameter
Rated voltage	400VAC 3P+N+PE
Rated frequency	50/60Hz
Rated current	63A(Customized)
Product life	20 years
Operating temperature	-30ºC~+55ºC
Air relative humidity	≤95%,no condensation
Altitude	≤4000m
Storage and transport temperature	-40ºC~+70ºC
Scope of application	Suitable for use in cold, salt spray, sand, dust, lightning and freezing areas
Degree of protection	IP54
Anti-corrosion grade	C3/C4/C5
Material	Q235/SUS304/SUS316
Adaptable wind turbines	1.5MW to 16MW

Application Case
Over 4,000 sets of onshore and over 1,000 sets of offshore main control and pitch control systems are in operation at the site, of which the longest operation time has more than 10 years.
Certifications
Test and certification ability:Type test approved by CMA and CNAS.
CE certification, ETL certification and CGC certification.
Exhibitions
FAQ
Q: How do you handle shipments?
A: 1. For small orders, we send goods by FedEx, DHL, UPS, express service on door to door term.
2. For large shipments, we send goods by sea or by air in containers.
Ps. it's highly recommended to delegate your own forwarders to handle shipments and FOB Shenzhen is widely adopted by our customers.
Q: What is your delivery time?
A: Normally, we need about 30 days to prepare your goods. For orders in large quantities and customized orders, the time for shipment will be a little longer.
Q: What is your term of payment?
A: Our standard term is 100% TT advance with order. However, it is negotiable under the condition of long-term strategic cooperation.
Q: What is your customized service?
A: With abundant experience in various kinds of OEM and ODM projects, we provide flexible and professional customized service. The MOQ varies based on your customized requirements.
Q: How long is the warranty?
A: The warranty of our products is 24 months upon the receipt of your shipment under normal circumstances.
Q: What is your guarantee of after-sale service?
A: In response to every single after-sale request within the warranty, we will appoint a one-on-one technician for timely online aid.

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