Flexible DC transmission technology is a new generation of DC transmission technology based on insulated gate bipolar transistor (IGBT), which has the characteristics of fast response, good controllability, flexible operation mode and small capacity and equal capacity. It is the world's controllability The highest and most adaptable transmission technology has technical advantages in such occasions as large-scale renewable energy grid connection, exchange system interconnection, DC network construction, weak system networking, urban distribution network capacity expansion and transformation, island power supply and other occasions.
Shanghai Nanhui flexible DC transmission project, Zhoushan ± 200 kV five-terminal flexible DC transmission technology demonstration project, Xiamen ± 320 kV flexible DC transmission technology demonstration project, Zhangbei renewable energy ± 500 kV flexible DC grid demonstration project ...... One A project of innovation leading and science and technology demonstration of significant significance, significantly enhancing the overall science and technology content of the power grid, and upgrading and leaping of the traditional power grid to a safe, efficient, economical, clean and interactive modern power grid, providing a strong power for economic construction, social development and livelihood improvement Protection.
Independent innovation leads the technological development
The flexible DC transmission technology can improve the stability of the power system, enhance the system's ability to absorb clean energy and improve the reliability and flexibility of the distribution network. More importantly, HVDC can carry clean energy such as wind and solar power from multiple sites, reach the load centers of multiple cities through large-capacity and long-distance power transmission channels, and provide power for large cities And other fields to provide effective solutions.
The importance of flexible DC transmission technology for power grid development goes without saying. However, conquering the peak of flexible DC transmission technology is not easy.
Time back to 2006. In May, Beijing was in early summer. The company organized domestic experts to hold a seminar on the research framework of the key technologies of flexible DC transmission system. At the meeting, the company made strategic decision-making and deployment, systematically put forward the overall research plan of flexible DC transmission technology, the company launched a major science and technology project of flexible DC transmission, and the formal development of China's flexible DC transmission technology played an important role.
All beginnings are hard. Due to the late start of the research on the technology of flexible DC transmission in our country, combined with the international strict secrecy of the technology, there is no publication of a drawing or a photo, nor publication of academic articles in journals. The related materials are extremely scarce. The face of difficult scientific and technological research, the company insisted on independent innovation, the rapid establishment of flexible DC transmission technology and equipment research and development team to the field of electricity the most cutting-edge, the most urgent, the most challenging and most promising high-end technology continues to force.
Die forging is one kind of forging parts.
Forging can produce the work piece which is stronger than an equivalent cast or machined part.
Forging parts is mainly for steel parts , which with higher requirement on strength and density.
This way is with advantages of higher pressure, better density and better surface compared with casting parts and Machined Parts.
Other advantages from my factory:
1. High and stable quality.
2. Short lead time.
3. Strict control on raw material sourcing and after production inspection.
Die Forgings
Die Forgings,Open Die Forgings,Closed Die Forging,Die Making Forging
Dandong Hengrui Machinery Co., Ltd. , http://www.hrcastings.com
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