Grid-connected operation control of photovoltaic power generation
Grid-connected technology and application of distributed power supply

Grid-connected operation control of photovoltaic power generation

The commonly used grid-connected control of photovoltaic systems mainly includes two closed-loop control links: the maximum power point control link and the output waveform control link. 1. Maximum power point control link According to the output characteristics of photovoltaic cells, under certain sunshine intensity and temperature, the output power of photovoltaic cells can reach the […]

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Wind power generation grid-connected operation control
Grid-connected technology and application of distributed power supply

Wind power generation grid-connected operation control

Distributed wind power and photovoltaic power are the main components of distributed power, usually connected to medium-voltage or low-voltage power distribution systems, which can effectively make up for the lack of large-scale centralized power generation and transmission. The grid-connected distributed generation system has the advantages of effectively utilizing electric energy, but it must meet the […]

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Grid-connected equipment selection and reactive power configuration of distributed power
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 voltage and grid-connected point selection of distributed power
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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Technical configuration of energy storage device in distributed power system
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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Choice of energy storage mode in distributed power generation system
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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Superconducting magnetic energy storage technology and flywheel energy storage technology
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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Supercapacitor energy storage technology
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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Battery energy storage technology and compressed air energy storage
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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The role of energy storage equipment
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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