In-depth discussion of energy storage battery technology, battery energy storage value evaluation research and battery energy storage device applications, etc.
Microgrid operation control and protection technology Compared with the conventional power system, the capacity of the microgrid is generally not large, and most of the connected power is the inverter power supply using power electronic devices, lacking a certain rotating reserve capacity. How to ensure the stability of the voltage and frequency of the system […]
Microgrid includes the process of generating, storing, and using electricity. This section analyzes the key technologies and technological development level of microgrid based on the characteristics of microgrid power supply types and operation modes. Microgrid optimization planning technology Microgrid optimization planning and design is a scientific microgrid energy storage composition and topology design under the […]
China’s microgrid technology research is still in its infancy, but some microgrid pilot projects have been completed and put into operation. including: Henan Zhengzhou Caizhuan Optical Storage Microgrid Pilot Project. This is a microgrid pilot project in the State Grid Corporation’s smart grid pilot project, relying on the roof photovoltaic power generation project of Henan […]
The access of distributed power sources has a profound impact on the power grid, which brings new challenges to the operation, control and protection of the power distribution network. Extensive and in-depth research was carried out. Among them, the three countries and regions of the United States, Europe and Japan are the most advanced in […]
The proposal of microgrid technology is closely related to the application and development of distributed generation (DG) technology. The concept of DG was first announced and officially promoted in the U.S. Public Utilities Management Policy Act of 1978, which is defined as: 1) A new power supply system that is completely different from the traditional […]
Reduce the construction capacity of wind farm grid-connected channels China has a vast land area and complex terrain conditions. The status and distribution characteristics of wind energy resources vary with the terrain and geographical location. The areas rich in wind energy resources are mainly distributed in the southeast coast and nearby islands and northern areas. […]
Against the background of increasingly tense global environmental protection and resource pressures, China’s energy situation is particularly severe. As a new energy technology with great potential and mature technology, wind power has an increasing application scale. The installed capacity of wind power is 150 million kw. The adverse impact of large-scale wind farm grid connection […]
At present, the representative and mature battery technologies mainly include: lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries, lithium batteries, sodium-sulfur batteries, flow batteries (including vanadium batteries, zinc-bromide batteries). Among them, lead-acid batteries have the longest history, mature technology and low cost (in the early stage of the development of electric energy storage technology, they are widely […]
①Reduce the operating costs of power generation companies and power grid companies, and reduce users’ electricity costsThe operation and maintenance of the energy storage system is relatively simple, while the operation and maintenance of the power plant or the power grid are relatively complicated. After the energy storage system is put into operation, the operation […]
Safety, high quality, and economy are the basic requirements for the power system. In recent years, with the growth of global economic development and the implementation of market-oriented reforms of power companies, the operation and demand of the power system are undergoing tremendous changes. Some new contradictions have become increasingly prominent. The main problems are:①The […]