In fact, China's conventional substation started in the 70s and 80s of the last century. With the continuous improvement of electrical level in more than 20 years, it provides the basis for modular integration of substations. From the original layout to the three-dimensional integration, the required use area of ​​the substation can be reduced.
Assembled compared to traditional substation
Advantages
"In recent years, with the continuous development of the social economy, in order to meet the power load and improve the power supply capacity, the State Grid Corporation proposed the construction of a strong smart grid, and various voltage-level intelligent substations emerged as the times require, and the scale of the substation construction gradually expanded. In a large number of practical processes, the advantages of fabricated substations have become more and more prominent." Chen Weiqi said in an interview with China Electric Power News.
What is a fabricated substation? The industry has given this definition: it is an intensive closed-type substation with advanced, reliable and environmentally-friendly intelligent modular units. It uses information digitization, networking and standardization as basic requirements to automatically complete information collection, measurement and control. Basic functions such as protection, measurement and detection are relatively environmentally-friendly intelligent substations with less land occupation, short construction period, low cost, no noise, no radiation and no maintenance.
In the view of Zhang Xiaofeng of China Power Construction Group Guangdong Electric Power Design and Research Institute Co., Ltd., in practical applications, the advantages of fabricated substation compared with traditional substation are more and more prominent, mainly reflected in the following aspects.
First, the installed substation has a reduced footprint and floor area compared to the cast-in-place substation. The construction of the assembled substation is more convenient for on-site control, and can better implement the design policy of “guaranteeing safety, reliability, economy, and national conditionsâ€, and follow the principle of “less resources, control cost, improve efficiency, safety and reliability†to realize construction land. And the reduction in building area.
Second, the main components of the assembled substation are manufactured and commissioned in the factory. They are assembled quickly during on-site construction, and the parallel construction of each building and structure is realized. The construction efficiency is obviously higher than that of the traditional cast-in-place substation, and the construction period is obviously reduced.
Third, in addition to the foundation using cast-in-place concrete foundation, the substation's walls, gates, structural supports, equipment supports, etc. all use combined assembly steel structure, autoclaved lightweight aerated concrete slabs, all steel structural members are prefabricated at the factory, industrialized, Large-scale production, unified technology, standardized specifications. The workload on the field is greatly reduced, and the labor intensity is greatly reduced.
Fourth, the assembled substation conforms to China's smart environmental protection and building energy conservation policies. During the construction of the assembled substation, the components are prefabricated in the factory, and the on-site construction is basically non-wet operation. The construction is pollution-free and noise-free, reducing the adverse impact on the health of the construction workers and reducing the consumption of water resources. The assembled substation is different from the traditional cast-in-place substation. The main building materials (steel) can be recycled and reused. Other materials can be recycled and recycled after being recycled and crushed.
“Assembled substation fully adopts assembly process in civil engineering and electrical installation, changes the construction mode of traditional substation, and builds intelligent substation according to two stages of prefabrication and on-site assembly and installation.†Chen Weiqi said in an interview with China Electric Power News, the country The “two-in-one†proposed by the grid company has promoted the construction of fabricated substations. Although China's fabricated substation has not been widely promoted, it is still in the early stage of development, but the assembled substation is an inevitable trend in the future development, which will improve the level of power grid construction. Promote a strong contribution to the construction of a strong smart grid.
Assembled in new energy boost system
widely used
“The fifth-generation assembled integrated substation launched by Xiangneng Chutian Power Group is a new type of intelligent substation that is continuously improved in the application process of a large number of assembled substations in China. It is continuously injected into the intelligent and modular by the group research institute. Based on the technology, it has the advantages of shorter construction period, higher intelligence, more modularization of the factory, etc. According to the analysis of the current situation of the industry, Chen Weiqi believes that the assembled substation is New energy power generation boosting systems, power transmission and distribution step-down systems will be more widely used.
In fact, Xiangneng Chutian Power Group actively participates in the construction of new energy wind power and photovoltaic projects, and forms the EPC general contracting business for new energy design, procurement, construction and grid connection. It has reached strategic cooperation with world famous new energy production enterprises. Continuously improve the procurement quality of the main materials, shorten the supply cycle, reduce the procurement cost, and combine the advantages of rapid agency and grid connection procedures to ensure the rapid completion of quality and quantity of new energy projects, shorten the grid-connected power transmission time period, and enable the project to invest in advance. The party produces economic benefits.
According to reports, after more than 10 years of development, Xiangneng Chutian Power Group has broken through the limitation of single business in the power industry, and has taken the lead in forming a one-stop service platform for power design, power equipment production, power installation and power operation and maintenance. With forward-looking decision-making, rooted in and serving the power industry for many years, it has formed two fists of engineering general contracting and power equipment. Combining technological innovation and professional manufacturing, it has become the first private electric power design, power installation and electrical equipment in China. A comprehensive operation group developed by R&D and “intelligenceâ€.
"For the quality assurance of substations, we will carry out comprehensive treatment in strict accordance with national standards. The selected equipments are all well-known domestic brands. We will never lower the quality of our products and reduce the performance of our equipment in pursuit of profit. We will adhere to strict design, fine construction and adoption. First-class equipment, good service standards to do pre-sales, sales and after-sales work." Chen Weiqi made a solemn commitment to the industry.
[short comment]
Scale promotion of assembled substations requires efforts by all parties
Li Qingzhen
The fabricated substation is a new revolution in substation construction. It not only breaks through the electrical layout, civil design and construction mode of traditional substation, but also poses a challenge to grid and grid workers. Although China's fabricated substation has not been widely promoted, it is still in the early stage of development, but the assembled substation is an inevitable trend in the future development. Therefore, the promotion of the use of fabricated substations on a scale requires joint efforts.
First, let users know the advantages of fabricated substations compared to traditional substations, and dispel the user's doubts about the use of fabricated substations. This requires the promotion of relevant technologies.
Secondly, assembled substation manufacturers must continuously increase investment in scientific research and develop technical standards. The first is to develop lightweight construction materials with higher strength, durability, insulation and recyclability. The second is to develop better design software and evaluation software. The third is to develop a new type of fabricated structure, such as concrete, steel structure, wood structure and other combinations of materials. The fourth is the seismic performance study of the assembled substation, especially the development of strong seismic connection and detachable node connection technology.
As the saying goes, there is no rule. It is extremely urgent to develop technical standards for fabricated substations. Steel structural members are prefabricated in the factory, industrialized, large-scale production, technical unification, and standardization of specifications. In China, the design and construction standards for prefabricated substations are lacking. There are no uniform modulus standards for the design and prefabricated component manufacturers in the industry. The relevant construction techniques, construction methods and safety regulations are not yet complete. Even in some respects, the current domestic construction technology standards and specifications are not compatible in many places, so that there is no standard for design, approval, and acceptance, which will lead to the extension of the production period of the components, and also to the large-scale promotion of the assembled substation. influences.
Dongguan Deli Plastic Co.,Ltd is a manufacturer specialized in the research, development ,plastic injection mould and making mass production with well-equipped facilities and strong technical force.
Our products are extensively used in household industry/electronic industry/automobile industry/building industry and other industries.
We have rich experience on one-stop solution, provide various services from new product design,prototype,mold making,mass production,assembly and logistics. The most important advantage is we have our own R&D team to help clients to turn ideas into actual parts. All of these engineers and designers have over 15 years experience in these plastic products fields.
We have a strict quality control system, an excellent management team and also a dedicated sales force, enable us to fulfill our commitment in high quality products and outstanding services.
If you are looking for a trustworthy supplier of customized items, please do not hesitate to contact us. We are always striving to establish a win-win partnership with customers from all over the world and help our partners to stay one step in front of your competitors.
Clip Fan,Clip Fan For Baby Stroller,Portable Clip Fan,Clip On Desk Mini Fan
Dongguan Yuhua Electronic Plastic Technology Co.,Ltd , https://www.yuhuaportablefan.com