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:Is the GIS in the electric power high voltage switch cabinet
IS is a shorthand for two conceptsThe 1 is the geographic information system.2 refers to the (GAS INSULATED SWITCHGEAR) gas insulated fully enclosed combination of electrical appliances, closed inside the main circuit breaker, isolation switch, grounding switch, bus, lightning arrester, etc.. Many power plants, substations, switching stations are made of GIS, so that the small footprint, or maintenance. With the high voltage switch cabinet or not.
Q:What are the effects of frequency variation on power users and power systems?
Influence of frequency variation on power users and power systems:There is a close relationship between the frequency of power equipment and the operation of power system
Q:I would like to ask the power experts, according to the annual additional electricity, installed capacity
In accordance with the annual increase of 90 million to consider the installation of the words, basically belong to the Chinese power market
Q:What is the double name of power equipment?
The double name of equipment refers to the name and number of the equipment.The name of the equipment is Chinese, the number is Arabia. Together is a double name. The same station, will not appear the same name, or the same number, is the only. The only combination of the two can be more accurate.
Q:Part of the rated voltage of the power equipment is marked 10.5kv, and this is similar to the label 10KV power equipment what is the difference?
3, rated voltage transformerRegulations, to accept the power of the primary winding, the output power of the two windings, the general, the primary winding voltage = network voltage, the voltage of the two winding due to the consideration of the loss, higher than the network voltage of 5% to 10%
Q:What principles should be followed in power equipment maintenance
Power equipment maintenance should follow the principles are: (1) to implement the "prevention oriented" maintenance policy, so that should be required to repair, repair required good"
Q:Power transformer equipment bidding procurement are in what units
Power Grid Corp on the volume of business is greater, because their main business is to invest in the construction of power grids.There are also a small number of individual units, such as large projects and large enterprises.
Q:What are the lightning protection measures of power system
Power system lightning protection is to prevent the atmospheric overvoltage.The specific measures to prevent the atmospheric overvoltage are: to set up the lightning rod above the high-voltage line (to prevent direct lightning). Install lightning rod (lightning, lightning protection) at the equipment to be protected.
Q:How to strengthen the management of electric power information communication equipment
As an important infrastructure in the process of automation and management modernization of China's power grid dispatching, the high efficiency and scientific performance of power information communication equipment can effectively promote the safe operation of power grid.
Q:What is the power system and the power grid 2 what is the rated voltage of electrical equipment
The electric power network is referred to as the "power grid", which refers to the connection between the bus from the booster station of the power plant to the bus of the substation.

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