Compressed air energy storage system based on linear electric generator and control method thereof

A technology of compressed air energy storage and linear generator, applied in the direction of electrical components, mechanical energy control, engine components, etc., can solve the problem that the compressed air energy storage system cannot adjust the output power, achieve constant voltage, constant power output, and improve reliability sexual effect

Active Publication Date: 2018-08-28
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a compressed air energy storage system based on a linear generator and its control method, which solves the problem that the compressed air energy storage system cannot adjust the output power in the process of power generation

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  • Compressed air energy storage system based on linear electric generator and control method thereof
  • Compressed air energy storage system based on linear electric generator and control method thereof
  • Compressed air energy storage system based on linear electric generator and control method thereof

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Embodiment Construction

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] Attached below Figure 1-4 The present invention is described...

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Abstract

The invention discloses a compressed air energy storage system based on a linear electric generator and a control method thereof. The system comprises a high-pressure air storage chamber, a liquid piston, a hydraulic piston, the linear electric generator and a hydraulic control mechanism; the top of the high-pressure air storage chamber is connected with the top of the liquid piston through a pipeline; the bottom of the liquid piston is connected with the hydraulic piston through a pipeline; the hydraulic control mechanism is connected with the hydraulic piston to control a piston rod to conduct reciprocating movement; and the piston rod is connected with the linear electric generator to achieve power generation. The invention discloses the control method of the system at the same time. Astroke controller is combined with a valve switch to control the stroke of the piston, so that the power of an input power grid of the whole compressed air energy storage system is adjusted; when theload is constant, the average power output by unit time does not change along with change of the gas pressure intensity; and the linear electric generator is adopted, constant voltage when the systemsupplies power is ensured through voltage loop and current loop control, and the power supply reliability is improved.

Description

technical field [0001] The invention belongs to the technical field of compressed air energy storage power generation, and in particular relates to a compressed air energy storage system based on a linear generator and a control method thereof. Background technique [0002] With the rapid development of intermittent new energy, it is also facing the problem of unstable power supply. Compressed air energy storage stores excess electrical energy by compressing gas, and generates power by expanding high-pressure gas. Use the compressed air energy storage system to cut peaks and fill valleys to improve the stability and reliability of intermittent new energy power supply. [0003] With the introduction of the concept of Global Energy Internet and the development of technology, energy storage technology plays an increasingly important role in the stability and economy of the power grid. During the power generation process of traditional compressed air energy storage systems, as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01B25/00F01B23/10H02K7/18
CPCF01B23/10F01B25/00H02K7/1884
Inventor 姜彤张璐路陈紫薇权超李响
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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