• General introduction to W/SHPC
• Tower pole
• Wind turbine and wind power generator
• Wind-light complementary controller
• System safety performance
• Typical applications of wind turbine system
• Wind-light complementary system parameters (Outdoor equipment)

General introduction to W/SHPC

System components:

The set of equipment of W/SHPC include:solar power array, wind generator, tower, battery, matching power supply controller, inverter and so on.

Working principles:

The system uses electricity generated by wind turbines and photovoltaic cell powers to charge storage battery via power supply controller and provide the stored power as alternating current for lighting, home appliances, communication equipment, power tools and all kinds of other loads via inverter.

Core technology:

1. Maintenance-free design, full-automatic operation, applicable to base station without guardians
2. "Folding pole", a patented technology, saving installation costs and easy for maintenance.
3. Airfoil wind tunnel test, optimized design of aerodynamics, aircraft blade structural making
4. Ultra-capacity, ultra-voltage motor design.
5. Various spinning speed control, yaw, electromagnetic brake and variable pitch.
6. Advanced DSP controlling system, buck-boost DC/DC conversion technology with data monitoring function, preventing power loss when generating power under low wind and lighting conditions.
7. wind and PV hybrid interleaved charge technology
8. MPPT controlling technologies with wind power and solar power

Characteristics of application:

The system can provide stable power supply and is applicable to electronic appliances requiring continuous power supply. The system can work safely in all kinds of unfavorable whether conditions and requires no special maintenance. It is the ideal power supply system for scattered households, television transposer station, meteorological station, sentry, island, troops transmission station, communities and other places.

Tower pole

Independent ups and downs leveraged tower pole with patented technology, easy and convenient for installation under limited installation conditions, saving installation costs.

Wind turbine and wind power generator

Wind turbines are optimally designed according to aerodynamics. Airfoil is chosen according to wind tunnel tests and structure of aircraft blade is chosen for manufacturing. 永磁三相交流发电机 (three-phase magnet alternator generator) with ultra-capacity and ultra-pressure is used for design.

Wind turbine and permanent magnet generator operate at best matching ratio tip speed with high efficiency, smaller starting torque and continuous operation at over-rated speed. It is equipped with yaw, electromagnetic brake, multiple speed pitch and other spinning speed controlling technologies, manual braking system and mechanical braking system and joint action of mechanical braking system and electromagnetic braking system to ensure the system safety.

Wind-light complementary controller

The power supply controller of the system has DSP data collection and storage system and can collect and process data on generation and application of electricity from photovoltaic arrays, wind generator and base station.

The controller has the following function：

Multipolar unloading voltage stability control;Intelligent tracking of maximum power to ensure electric power can be made best used of; Intelligent control of storage battery charge and recharge process; Protection against overcharge/over-discharge; Detection of battery power; alarm device; lightning protecting device; motional control of strong winds yaw; remote data transfer; remote controlling function.

Using step-up/step-down DC/DC conversion technology

The system has designed controller for new wind and solar power supply system and uses step-up/step-down converter instead of DC/DC power supply system to meet different output voltage requirements of different users. The system can intelligently control unloading current and ensure maximum output current.

Tacking control of maximum power point of wind and solar power supply

The system uses step-up/step-own DC/DC converter to control output voltage to realize control of out current of generators. By adjusting output current, the wind and solar power supply system can constantly work at the maximum power point. This is the maximum power point tracking (MPPT) control.

DC bus voltage control

Stability control of DC bus voltage is completed by storage battery, as in Figure 5. Battery uses a two-way flow DC/DC converter to connect with DC bus.

 

Inter-leveled paralleling control of wind and solar hybrid power supply system

The system uses DSP to control two converters separately. The output voltage PWM pulse has a phase difference of 180°. Compared with traditional controlling method, the system can decrease current fluctuations and electromagnetic interference.

• 
  a.Traditional Parallel method
• 
  
  b.Inter-leveled Parallel output

Using Environment of controlling system

Wind-light complementary controller can work continuously and steadily under the following conditions:

1. Indoor equipment temperature：－10℃～+45℃;
2. Relative air humidity：less than 90%(25±5℃);

Life-span indicator

1. Mean time between failure（MTBF）> 8000h. 45℃;
2. Designed life span >15 years. 45℃;
3. 3-year warranty

Data Monitoring

Scenery complementary power supply system has the following data monitoring function：the monitoring system can provide the system with all kinds of operational data of Scenery complementary power supply system and all kinds of alert notifications；provide power supply device with basic operational data for maintenance and management.

Lighting Protection

Meet the relevant requirements china mobile enterprise standards from 《基站防雷与接地技术规范》(QB-W-011-2007)

Controller parameters (indoor equipment)

model	Wind power output power (alone)（kw）	Wind power output power (alone)（kw）	Scenery complementary output power(kw）	Enter the maximum voltage(V)	The output voltage rating(V)	Output the maximum current(A)	Communication interface	Digital operation terminal	Brake control
WP-C-500-24/48V	0.5	0.5		1000	24/48	25/15	SCI	optional	yes
WP-C-1000-24/48V	1	1	0.5/0.5	1000	24/48	50/25	SCI	yes	yes
WP-C-1000-24/48V	2	2	1/1	1000	48	50	SCI	yes	yes
WP-C-3000-48V	3	3	1.5/1.5	1000	48	75	SCI	yes	yes
WP-C-5000-48V	5	5	2.5/2.5	1000	48	120	SCI	yes	yes
WP-C-10000-48V	10	10	5/5	1000	48	120	SCI	yes	yes

System safety performance

Independent step-up and step-down leveraged tower pole, which needs no large-scale lifting equipment, can be used in all kinds of terrain conditions with easy tools for installation. The system can lower cost and it is easy and safe for installation and maintenance. Speed limitations of wind turbines take use of yaw, electromagnetic braking system, multi-speed and many other spinning speed controlling technologies and manual braking system. Mechanical braking system and electromagnetic braking system works together to ensure safe operation of system.

Anti-overvoltage and over-current system of power supply controller can prevent breakdown of wind turbines and provide adjustable output controller of stable voltage, protection of over-charge/over-discharge protection and alarm device to ensure safe use of battery. Protection resistor device in controller can prevent load operation of generator even when controller suffers from failure so that it can protect motor all the time. Lightning device and remote control function both can provide users with safe production and application.

Typical applications of wind turbine system

Off-grid application

1. wind turbine independent power program:

Use wind power to provide electricity for battery, provide lightning, household appliances, communication equipment, and power tools with direct and alternating, two kinds of power converted from stored power.



2. W/SHPC:

Use electricity generated from wind turbine and photovoltaic cells to charge battery via power supply controller, and provide lightning, household appliances, communication equipment, and power tools with alternating power via converter.



3. Hybrid Wind-PV-Diesel Power Supply System：

Use electricity generated from wind turbine and photovoltaic cells to charge battery via power supply controller, and provide lightning, household appliances, communication equipment, and power tools with alternating power via converter. Diesel engine are used as backup power and is launched when wind, solar energy is insufficient to charge and protect battery when battery lacks power.

Grid connected application

1. Wind turbine grid system:
Electricity generated by wind turbine is transferred to local power grid via grid-tied inverter



2. Wind turbines and complementary to the electricity network system:

Generated electricity and power grid are merged to tributary bus after being rectified by bridge rectifier. Wind turbine gives output when wind turbine voltage is higher than that of grid power and gets input when lower. The system implements zero switching. The precondition for the system is that the system contains continuous working load.



3. Pluripotent complementary and distributed power supply system:

They system is composed of wind turbines, solar energy battery, diesel engines,battery group, bi-directional inverter power source and low voltage power grid and can guarantee 100% power supply.

Wind-light complementary system parameters (Outdoor equipment)

model	AH-500W	AH-1KW	AH-1.5KW	AH-3KW	AH-5KW	AH-10KW	AH-5KW variable pitch
rotor diameter(m)	2.5	2.8	3.2	4	5	8	5.2
Blade material	Fiberglass-Reinforced Plastic*3
rated power/maximum power(w)	500/750	1000/1400	1500/2000	3000/4500	5000/6500	10k/15k	5k/65
rated wind speed(m/s)	9	10	10	11	11	11	11
start-up wind speed(m/s)	3	3	3	3	3	3	2
work speed(m/s)	3-25	3-25	3-25	4-30	4-30	4-30	4-30
survival wind speed(m/s)	40	40	50	50	50	50	60
working voltage(v)	DC24V AC220V	DC48V/DC120V AC220V	DC48V/DC120V AC220V	DC120V/DC240V AC220V	DC120V/DC240V AC220V	DC500V AC400V	DC120V/DC240V AC220V
speed adjustment mode	yawing+electromagnetism						variable pitch
halt mode	Hand brake					Hand brake+ Hydraulic brake	Hand brake
Fan body weight(kg)	80	85	120	220	350	900	400
AAPole height/weight(m/kg)	6/65	6/85	7/100	8/150	8/150	10/800	8/150
AAAPole height/weight(m/kg)		6/280	7/350	7/380	8/450	10/3000	8/450