Grid-connected technology and application of distributed power supply
Grid-connected equipment selection and reactive power configuration of distributed power
Grid-connected equipment selection (1) General principles. The selection of engineering equipment for distributed power supply access to the user’s distribution network should follow the following principles: ① Distributed power supply access system engineering should select equipment whose parameters and performance meet the safe and reliable operation of power grid and distributed power supply. ② The […]
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Grid-connected technology and application of distributed power supply
Grid-connected voltage and grid-connected point selection of distributed power
The voltage level connected to the distribution network The grid connection point of the distributed power supply refers to the connection point between the distributed power supply and the power grid, and the power grid may be a public power grid or a user power grid. The legend of the grid connection point is shown […]
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Energy storage equipment
Typical distributed power and energy storage equipment
Technical configuration of energy storage device in distributed power system
When designing the capacity configuration of energy storage equipment in a distributed power generation system, the main factors that need to be considered are: the self-supply power supply time of the energy storage equipment, the maximum energy storage requirements, the depth of discharge and the correction calculation of other influencing factors, etc. The following takes […]
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Energy storage equipment
Typical distributed power and energy storage equipment
Choice of energy storage mode in distributed power generation system
Distributed power sources are intermittent and fluctuating power sources, and their power generation has obvious randomness and uncertainty, and it is easy to have an impact on the operation of the power grid and even cause power accidents. In order to make full use of renewable energy and ensure the reliability of its power supply, […]
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Energy storage equipment
Typical distributed power and energy storage equipment
Superconducting magnetic energy storage technology and flywheel energy storage technology
Superconducting magnetic energy storage technology In the 1970s, Superconducting Magnetic Energy Storage (SMES) began to be used in power systems. Superconducting magnetic energy storage uses the characteristic that the resistance of a superconductor approaches zero when the temperature is close to absolute zero to store electrical energy in the superconducting coil without loss. The core […]
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Energy storage equipment
Typical distributed power and energy storage equipment
Supercapacitor energy storage technology
The core component of Super Capacitor Energy Storage (SCES) is the super capacitor. It is a new type of energy storage element that has been mass-produced in recent years. Its energy density is very high, it has both the advantages of high-efficiency discharge power of electrostatic capacitors and the large charge storage capacity of batteries, […]
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Energy storage equipment
Typical distributed power and energy storage equipment
Battery energy storage technology and compressed air energy storage
Battery energy storage technology The development of batteries has a long history and is currently the most widely used energy storage technology in distributed power generation systems. The battery energy storage system (Battery Energy Storage System, BESS) is mainly composed of battery packs, inverters, controllers and other auxiliary equipment. According to the different chemical substances […]
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Energy storage equipment
Typical distributed power and energy storage equipment
The role of energy storage equipment
With the development of new energy technologies and smart grids, energy storage equipment is of great significance in some distributed power generation systems based on clean energy (such as wind power generation, solar power generation, etc.). Due to the intermittent nature of wind power generation and solar power generation, its output electrical energy also has […]
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Typical distributed power
Typical distributed power and energy storage equipment
The characteristics of fuel cell and the microturbine
Features of fuel cell The distributed fuel cell demonstration power station uses natural gas as fuel. The natural gas is first converted into hydrogen, which is then sent to the fuel cell generator set to produce electricity and hot water. In principle, as long as the fuel cell continuously inputs reactants and discharges reaction products, […]
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Typical distributed power
Typical distributed power and energy storage equipment
The working principle of the fuel cell
A fuel cell is a power generation device that directly converts the chemical energy of fuel and oxidant into electrical energy. In 1839, British scientist W.R.Grove discovered and verified the phenomenon of fuel cells in the laboratory. However, due to the failure of the research on the dynamics of generators and electrode processes to keep […]
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