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Energy storage solutions

Information

  The energy storage system is an important part of the six links of "production-generation-transmission-distribution-use-storage" in the power production process. The energy storage system can realize energy transfer and promote the application of new energy; it can establish a micro-grid to provide electricity for areas without electricity; and can use power auxiliary service solutions to adjust peak and frequency to improve the stability of power system operation. Energy storage system has great strategic significance for the construction of smart grid.

  Energy storage systems are used for energy transfer and are divided into centralized and decentralized types. It can improve the problem of photovoltaic and wind power generation limit and improve economy; reduce the instantaneous power change rate and reduce grid impact.

 

  Overview of centralized storage application solutions:

  It is suitable for large-scale photovoltaic power plants, where there are severe power-limiting scenarios, with grid access conditions and sufficient equipment installation sites.

 

  Special advantages:

  The AC bus connection is suitable for centralized management; reducing light and wind abandonment, improving economy; tracking plan and scheduling, improving grid controllability; improving power generation forecast accuracy and grid connection friendliness.

 

System structure diagram:

长沙恒开电气设备有限公司

  Overview of distributed storage system solutions:

  It is suitable for large-scale photovoltaic power plants, where there are severe power-limiting scenarios, there is no grid access conditions, and there is no need to concentrate large-scale installation sites.

 

  Special advantages:

  DC bus connection, modular design, flexible configuration; energy storage system does not require additional grid connection points, saving step-up transformer; reducing light and wind abandonment, improving economy; peak and valley electricity prices, increasing system revenue.

 

System structure diagram:

长沙恒开电气设备有限公司

  Microgrid application solutions:

  The microgrid system is a power generation and distribution system that can achieve self-control, protection and management according to predetermined goals. It can be connected to the external grid to form a networked microgrid, or it can operate in isolation to form an independent microgrid. The energy storage system is an indispensable unit in the microgrid. It realizes the internal power balance of the microgrid, provides stable power for the load, and improves the reliability of power consumption. It realizes seamless switching between on-grid and off-grid.

 

  Overview of large microgrid system solutions:

  It is suitable for areas with independent microgrids such as no electricity and islands, multi-energy complementary, spontaneous self-use and other networked microgrids and areas with scattered photovoltaic installations.

 

  Special advantages:

  Efficient and flexible, suitable for a variety of renewable energy power generation systems; AC bus connection, convenient for centralized management; wide power supply radius, easy to expand, suitable for long-line transmission.

 

System structure diagram:

长沙恒开电气设备有限公司

  Overview of small microgrid system solutions:

  It is suitable for non-electricity areas, islands and other independent micro-grid areas. It is used in multi-energy complementary, spontaneous and self-use networked micro-grid scenarios and areas where photovoltaic installation is concentrated.

 

  Special advantages:

  DC bus connection, modular design, flexible configuration; photovoltaic and energy storage decoupling design, simple control; with micro-grid and off-grid seamless switching function; supports city power priority, micro-grid priority and parallel operation mode, saving fuel

 

System structure diagram:

长沙恒开电气设备有限公司

  Electric auxiliary service solution:

  The energy storage system can realize primary frequency modulation and secondary frequency modulation control, monitor load fluctuations in real time, quickly respond to grid dispatch, and improve grid frequency stability. The energy storage system can also dynamically adjust the grid reactive power according to the change of the power factor of the grid, reduce system losses, and ensure reliable operation of the grid.

 

  Overview of power frequency modulation application solutions:

  It can meet the scenario of quick response to the primary frequency regulation of the power grid, respond to short-term load power changes; cooperate with the generator set, and apply to the scenario of secondary frequency regulation of the grid.

 

  Special advantages:

  It can realize both primary frequency modulation and secondary frequency modulation; effectively improve the frequency stability of the power grid; has a fast dynamic response speed.

 

System structure diagram:

长沙恒开电气设备有限公司

Contact us

Address: Building 3, Xingsha International Enterprise Center, Changsha Economic and Technological Development Zone
Phone:0731-85524209
Email:cshk@cshkdq.com

Changsha Hengkai Electrical Equipment Co., Ltd.