Microgrid (Micro Grid): refers to small power system connected with the intelligent distributed power sources, generally includes a micro part of the power, the load, storage, power distribution and control system, with a large power grid or off-grid run. The microgrids are divided into two types of grid-connected and independent types. The independent microgrids do not depend on the external power grid and can themselves realize the balance of internal electric power and electric power. The grid-connected microgrids are usually connected to the upper-level grids in parallel and can be operated under special circumstances Off-grid operation, independent operation of the network can maintain all or part of the important electricity load power supply. Micro-grid can be divided into AC micro-grid, DC micro-grid, AC-DC hybrid micro-grid. Micro-grid and power grid, backup power, UPS, distributed generation, energy storage comparison: Different systems The contrast Microgrid Same point the difference 1 Large power grid 1 ) are all power transmission channels; 2) have power distribution, relay protection, monitoring, metering and communication systems; 3) adjust the energy balance, reliable power supply to meet the load requirements. 1 ) Different scales, microgrid <20MW; 2) Different voltage levels, microgrid <= 35kV; 3) Different power supply targets, microgrids are mainly distributed micro-power access; 4) For different targets, microgrid faces the islands, Remote areas, urban areas; 2 backup power Independent power supply from the grid The backup power supply uses a single diesel generator, while the microgrid supports multiple power supplies to coordinate operation, especially for distributed renewable energy. 3 ups Independent power supply from the grid UPS off-grid through the battery to provide energy for the load power supply, but also access the diesel engine, but the power side, the load side there is a strict distinction, the load side of the UPS can not and power supply; micro-grid can support a variety of power access operation, power Load, energy storage equipment can be connected to the same bus 4 Distributed generation Use of new energy sources, especially renewable energy Distributed generation is grid-connected, or a single power supply; microgrid can be grid, can be isolated, support a variety of power at the same time access. 5 Energy storage Independent power supply from the grid Ordinary energy storage systems are grid-connected; microgrids can be both isolated and unobstructed.
Our firm introduced whole set of good-sized numerical control hydraulic
folding equipment(1280/16000) as well as equipped with a series of
good-sized professional equipments of armor plate-flatted machine,
lengthways cut machine, numerical control cut machine, auto-closed up
machine, auto-arc-weld machine, hydraulic redressing straight machine,
etc. The firm produces all sorts of conical, pyramidal, cylindrical
steel poles with production range of dia 50mm-2250mm, thickness
1mm-25mm, once taking shape 16000mm long, and large-scale steel
components. The firm also is equipped with a multicolor-spayed
pipelining. At the meantime, for better service to the clients, our firm
founded a branch com. The Yixing Jinlei Lighting Installation Com,
which offers clients a succession of service from design to manufacture
and fixing.
We have supplied 2400ton 132kV and 220kV transmission line steel pole to WAPDA. Pakistan on 2008 and have supplied 1200ton 138kV transmission line steel pole to Davao light, Philippines on 2009.
Street Lighting Pole, Solar Power, Solar Lighting Pole Jiangsu Xinjinlei Steel Industry Co., Ltd. , https://www.steelpolejl.com