Photovoltaic direct current composite energy storage system and method based on temperature field control technology
A control technology and composite energy storage technology, which is applied in the field of photovoltaic power generation and energy storage, can solve problems such as the lack of research on photovoltaic DC composite energy storage systems and methods, and achieve scientific, practical, and reasonable structural design effects
Active Publication Date: 2021-11-23
HUADIAN ELECTRIC POWER SCI INST CO LTD
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[0010] 6. Emotionally easy for users to accept;
[0032] At present, there is no relevant research on the photovoltaic DC hybrid energy storage system and method based on the temperature field control technology.
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[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.
[0053] Example.
[0054] see Figure 1 to Figure 3 , in this embodiment, a photovoltaic DC composite energy storage system based on temperature field control technology, including a high temperature superconducting electromagnetic energy storage device 1, a liquid nitrogen tank 2, a lithium battery energy storage array 10 and a lithium ion battery array cooling system 13 The lithium battery energy storage array 10 is circumferentially arranged outside the high temperature superconducting electromagnetic energy storage device 1 and the liquid nitrogen tank 2, the lithium battery energy storage array 10 is connected with the lithium battery energy storage array current and voltage control device 12, and the lithium ba...
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The invention discloses a photovoltaic direct-current composite energy storage system and method based on a temperature field control technology. The photovoltaic direct-current composite energy storage system comprises a high-temperature superconducting electromagnetic energy storage device, a liquid nitrogen tank, a lithium battery energy storage array and a lithium ion battery array cooling system. The lithium battery energy storage array is circumferentially arranged outside the high-temperature superconducting electromagnetic energy storage device and the liquid nitrogen tank, and the lithium ion battery array cooling system is adjacent to the lithium battery energy storage array; the high-temperature superconducting electromagnetic energy storage device comprises a bidirectional coil, a high-temperature superconducting electromagnetic energy storage charging coil, a high-temperature superconducting electromagnetic energy storage releasing coil and a high-temperature superconducting electromagnetic energy storage measurement and control device, a column core is arranged in the liquid nitrogen tank, grooves are distributed in the side wall of the column core, and the bidirectional coil is wound in the grooves; and the high-temperature superconducting electromagnetic energy storage charging coil and the high-temperature superconducting electromagnetic energy storage releasing coil are respectively connected with the bidirectional coil. Through the design of the temperature field and the composite energy storage system, energy storage of the photovoltaic power station and quick response to power grid frequency modulation are realized, and the energy conversion efficiency of energy storage is improved.
Description
technical field [0001] The invention relates to a photovoltaic DC composite energy storage system and method based on temperature field control technology, belonging to the field of photovoltaic power generation and energy storage. Background technique [0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy by using the photovoltaic effect at the semiconductor interface. It is mainly composed of three parts: solar panels (components), controllers and inverters, and the main components are composed of electronic components. The solar cells are packaged and protected after being connected in series to form a large-area solar cell module, and then cooperate with power controllers and other components to form a photovoltaic power generation device. [0003] The main principle of photovoltaic power generation is the photoelectric effect of semiconductors. When a photon irradiates a metal, its energy can be completely abs...
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IPC IPC(8): H02J15/00H02J7/35H02J3/32
CPCH02J15/00H02J7/35H02J3/32Y02E10/56Y02E40/60Y02E70/30
Inventor 张士龙张伟卢成志
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD