Energy storage converter control method and device

A technology of energy storage converter and control method, which is applied in the direction of AC network voltage adjustment, AC network load balancing, reactive power compensation, etc., can solve problems such as voltage jitter, affecting the life of power grid quality equipment, etc., to overcome current impact, reduce Effect of current jitter and life extension

Active Publication Date: 2020-08-07
XUJI GRP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference in the power grid environment, some voltage fluctuations will occur in the power grid, especially the micro-grid. Short-term power grid fluctuations require the energy storage converter to pass through smoothly and generate reactive power to support the power grid. However, sudden changes in voltage are often accompanied by current jitter, which affects the quality of the power grid. and equipment life

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Energy storage converter control method and device
  • Energy storage converter control method and device
  • Energy storage converter control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0062] figure 1 It is a schematic diagram of the energy storage converter control method provided by the embodiment of the present invention.

[0063] figure 1 It is a schematic diagram of a control method for an energy storage converter, including a detection module, a judgment module, a control module, and a pulse generation module. The detection module mainly monitors the AC voltage U AC And take the AC voltage U ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an energy storage converter control method and device. The method comprises the following steps: detecting an alternating-current voltage of an energy storage converter; judging whether the alternating-current voltage suddenly changes; and when the alternating-current voltage changes suddenly, adjusting an energy storage converter through hysteresis control and PI control.According to the invention, when the alternating-current voltage suddenly decreases to a first preset voltage value or suddenly increases to a second preset voltage value from a low-voltage region, byadopting a hybrid control mode of hysteresis control and PI control, voltage leap caused by power grid environment difference and current impact caused by corresponding current jitter are overcome, current jitter during high / low voltage ride through is reduced, stable transition of voltage and current during high / low voltage ride through is ensured, and the service life of power grid equipment isprolonged.

Description

technical field [0001] The invention relates to the technical field of converter control, in particular to an energy storage converter control method and device. Background technique [0002] The energy storage converter can control the charging and discharging process of the battery pack, perform AC-DC conversion, and can directly supply power to AC loads in the absence of a grid. Generally speaking, the energy storage converter includes a bidirectional converter and a control unit. By receiving the background control command, the converter is controlled to charge and discharge the battery according to the sign and size of the power command, so as to realize the active power and reactive power of the grid. Power regulation. [0003] Energy storage converters have been vigorously promoted because they can meet the needs of power stations for peak-shaving and valley-filling and peak-valley power price difference adjustment, smooth wind and solar output, adjust power grid pow...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/24H02J3/16H02J3/50
CPCH02J3/32H02J3/24H02J3/16H02J3/50Y02E40/30
Inventor 胡四全黄小有张锐董朝阳吉攀攀刘永成秦鸿瑜赵洋洋张振兴
Owner XUJI GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap