Solution of Large-scale Ground PV Power Station System

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It is applied in coastal beaches, Gobi wasteland and suburban open areas without shade, and it is an important part of the distributed generation system.



The large-scale ground PV power station is composed of PV power generation system, inverter system and grid access system. Power generation system basically includes PV cells, PV array bracket, DC combiner box, DC distribution cabinet, grid-connected inverter, AC distribution cabinet, step-up transformer, etc. in addition to the power station monitoring device and environmental monitoring device.

In the large-scale ground PV power station, solar module array outputs the electrical power under the solar radiation, and the power flows through the DC combiner box into the DC distribution cabinet and is converted into AC by the grid-connected inverter, and then the power is stepped up by the step-up transformer and connected into the grid and finally transported to the end users by the grid.

Solution of Large-scale Ground PV Power Station System


Energy storage is unnecessary for the entire power generation system, and the maximum utilization of electrical energy may be achieved with the grid support;

Reliable system, easy construction and maintenance;

Centralized and large-scale power generation by solar energy, energy-saving and environmental, contributing to the national energy-saving tasks;

Help to protect the good ecological environment, and adjust the structure of energy consumption;


Solution of Large-scale Ground PV Power Station System

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Q:What is the LCP cabinet of electric power equipment
Local control cabinetLocal control cabinet installed in the work site, which is likely to have PLC, the scope of the control cabinet than PLC wide
Q:The problem of electric power equipment withstand voltage
The air is easy to produce ionization, so it is necessary to improve the insulation level and increase the gap of high voltage electrical apparatus
Q:What are the effects of frequency variation on power users and power systems?
1, the use of motor speed and system frequency, the frequency change will make the motor speed change, thus affecting the quality of the product. For example, the textile industry will change because of the frequency of defective products.2, modern industry, national defense and science and technology have been widely used in electronic equipment affected by frequency.System itself:1, low frequency operation, the generator will be affected by the stress of the blade. Even cause resonance, reduce blade life.2, increase the excitation current, improve the temperature rise, etc..
Q:1 what are the main aspects of power line fire? 2 what are the main aspects of electrical equipment fire?
Two, electrical fire monitoring system should be listed in the department or all the monitoring unit:1 electrical fire monitoring equipment;2 residual current type electric fire monitoring detector;3 temperature measuring electric fire monitoring detector;4 linear temperature fire detector
Q:What equipment is necessary on the list of electrical engineering equipment?
MS-300D geodetic network grounding resistance tester, MS-101D anti-interference dielectric loss automatic measuring instrument, MSGK-E high voltage switch dynamic characteristic tester, MSBL-IV arrester characteristic tester and other equipment.
Q:What is the redundancy of electrical equipment
I/O card: to the server, mainly refers to the network card and hard disk control card redundancy. Network card redundancy is inserted in the server dual network card. The card was large and redundant technology medium on technology, now has been owned by the PC server. PC server such as Micron's NetFRAME9200 up to 4 network card redundancy, the 4 network card each bear the network traffic of 25%. COMPAQ all ProSignia/Proliant servers have fault tolerant redundant dual nic.
Q:Buildings, factories, institutions, power distribution room of the power equipment as required
And some equipment is required to use the 6kV power supply, voltage level and the load of the device determines the choice of power equipment rated voltage, current value. Building, there are generally important electrical equipment such as elevators, in the national specification clearly requires, a class, two types of load is not allowed to power outages, which long requires the use of dual power supply
Q:What are the business scope of Electric Power Engineering Co., Ltd.
Domestic thermal power, hydroelectric power generation, power transmission and power supply, energy saving, environmental protection, industrial and civil buildings, intelligent buildings and municipal engineering contracting, including consulting, design, research and development, supervision, project planning, equipment, construction, installation and technical services etc.
Q:I would like to open a company on the construction of power equipment, what needs to be prepared?
The second is the power facilities installation, repair and testing qualification. Also divided into one to four, respectively, by the State Electricity Regulatory Commission, power supervision bureau and the city in the county, the county's dispatched office - to do the examination and approval of the electricity office. In some places there may be five, is designed for the establishment of the company.As for the size of the funds, different levels of economic development, the requirements are different, only to the location of the business sector consulting.In the actual participation in bidding and other construction activities, be sure to carefully read the tender documents and other construction projects, different projects for different requirements of different qualifications.
Q:What power equipment is needed for the motive,
For parts processing and manufacturing, the equipment is gone. For assembly, see engine size. General small assembly, assembly, commissioning.

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