【专家解说】：1．逆变器
逆变器由863联合体提供国产合肥阳光电源有限公司的产品。其中200千瓦常规平板固定系统采用1台SG250K3并网逆变器，100千瓦常规平板固定系统、100千瓦单轴跟踪系统和100千瓦双轴跟踪系统分别采用1台SG100K3并网逆变器。
2.太阳能电池组件
太阳能电池组件选用单晶体硅电池组件，其工作电压为35V，开路电压约为45V。每个光伏阵列按照16块电池组件串联进行设计，其中200千瓦的并网单元配置76个光伏阵列，100千瓦固定安装单元配置36个光伏阵列，两个100千瓦的并网单元各配置36个光伏阵列，整个系统配置2944块电池组件，总功率为500.48kWp。
3.单轴跟踪系统：每日晨7时左右太阳板从平开始向东转动，转至起始位置（约朝东50度），从上午9点50分（太阳时8点40）以后开始每4分钟从东到西正转跟踪1度。到下午4点半左右（太阳时15点20）跟踪停止，这时太阳电池板在朝西终止位置（约朝西50度）。下午7点10分左右太阳电池板从朝西终止位置反转到平
4.双轴跟踪系统：定义电池板初始位置为方位角朝南，高度角与水平夹角5度。每天早上5点10分左右太阳电池板俯仰电机从平反转到朝东起始位置，方位电机从朝南转到朝东日出位置，每天从日出时间开始跟踪，日落时间停止跟踪，夏至时约为太阳时19点06分停止，春秋分约为太阳时17点零58分，冬至约为太阳时16点零54分。方位角最大为夏至时朝东120度至朝西120度，全程240度；高度角全程为与水平夹角5度到与水平夹角76度，全程71度。当风力大于6（10.8m-13.3m/s）级且持续30秒电池板转到初始位置；风力小于4级（5.5m-7.9m/s）且持续35分钟恢复跟踪。
5.电站系统接入方式
电站上网电压为10千伏，并入距电站2公里的10千伏网，该网归属武威电力局代管的凉州区农电局管辖的农网。计量点设在电站10 千伏出线侧，关口点的电能表采用0.2级。电站升压至10千伏，以架空线路“T”接到长城变电站125新地线治沙站分支10#杆，新建10千伏架空线路约0.5公里，输出变压器容量采用630千伏安。
四、电站运营
本太阳能电站原设计年发电利用小时数为：1500小时；年发电量为：75万千瓦时。
由于对对风沙遮蔽及全日跟踪和单轴跟踪系统可靠性考虑不足，以及没有后备电源和电网不稳定等众多因素的影响，电站实际发电量未能达到设计状态。
2009年全年发电量：592MW；全年利用小时数：1184小时；每天发电利用小时数：3.94小时。
截至目前，项目还未取得国家相关电价补贴。对电站持续可靠运营带来困难。
1. Inverter
Commonwealth of inverter 863 made by the Hefei Sunlight Power Supply Co., Ltd. products. One 200 kW system uses a conventional flat-panel sets SG250K3 fixed grid inverter, 100 kW conventional plate fixation system, 100 kW and 100 kW single-axis tracking system, dual-axis tracking systems were used to a station SG100K3 grid inverter.
2. Solar cell module
Single crystal silicon solar modules use the battery components, their working voltage is 35V, the open circuit voltage of about 45V. Each photovoltaic array in accordance with the 16 cell modules in series design, in which 200 kW of grid-cell configuration of 76 photovoltaic array, installed 100 kW fixed-configuration of 36 photovoltaic cell array, two 100-kilowatt grid-cell the PV array configuration 36, the entire system configuration 2944 battery components, total power 500.48kWp.
3. Single Axis Tracking System: Daily morning around 7:00 flat solar panels starting from the east turn, go to the starting position (about 50 degrees east), from 9:50 (Sun 8:40 pm) after the start every 4 minutes to switch from east to west is tracking a degree. To 16:30 or so (the Sun 15:20) track to stop, this time in the west end location of solar panels (about 50 degrees west). 19:10 about solar panels from the west end to level the inverse
4. Dual-axis tracking system: the definition of the initial location for the solar panels facing south azimuth, elevation angle and horizontal angle of 5 degrees. Every morning around 5:10 Electric solar panels tilt to the east from the vindication of the starting position, the azimuth motor position from south to east sunrise each day starting from the sunrise time tracking, time to stop tracking the sun , the summer solstice when the sun was about 19:06 when to stop, spring and autumn when the sun is about sub-58 17:00 pm, the winter solstice when the sun is about 54 points 16:00. Maximum when the summer solstice azimuth of 120 degrees east to west 120 degrees, full 240 degrees; high angle and horizontal angle of the journey is the horizontal angle of 5 degrees to 76 degrees, 71 degrees throughout. When the wind is greater than 6 (10.8m-13.3m / s) level and 30 seconds the battery plate to the initial position; wind less than four (5.5m-7.9m / s) and lasted 35 minutes to resume tracking.
5. Power system access methods
Power line voltage of 10 kV, into the station 2 km away from the 10 kV network, the network of electric power vested in Wuwei Liangzhou hosted under the jurisdiction of the Rural Agricultural Power Authority. Measurement points located in the Power Station 10 kV side of the crossing point of the energy meter by 0.2. Step-up to 10 KV power station to overhead lines "T" received the Great Wall of Sand Station Substation 125 new branches of earth 10 # bar, the new 10 kV overhead line is about 0.5 km, the output capacity by 630 KVA transformer.
4, power station operators
In the original design of this solar power station use hours are: 1500 hours; annual power output: 75 million kwh.
Because of the shelter and all day on sandy track and consider the reliability of single-axis tracking system inadequate, and no back-up power supply and grid instability, and many other factors, the actual electricity generation power station failed to meet the design state.
The year 2009, generating capacity: 592MW; annual use hours: 1184 hours; daily electricity use hours: 3.94 hours.
Up to now, the project has not yet achieved the relevant state electricity price subsidies. Continuous and reliable operation of the station difficult.
