Micro-grid distributed economic operation control method based on cascade inverters

A technology of cascaded inverters and economical operation, which is applied in the direction of single-network parallel feeding arrangement, electrical components, circuit devices, etc., and can solve the problems of cascaded inverters in the AC microgrid economical operation control problems that are rarely involved. , to achieve the effect that the control method is simple and feasible

Pending Publication Date: 2022-08-02
MOUTAI INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, these methods only solve part of the economic operation control problem of the microgrid based on parallel inverters, and the economic operation control problem of the AC microgrid ba

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
  • Micro-grid distributed economic operation control method based on cascade inverters
  • Micro-grid distributed economic operation control method based on cascade inverters
  • Micro-grid distributed economic operation control method based on cascade inverters

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0052] Example 1: as Figure 1-13 As shown, a distributed economical operation control method for microgrid based on cascaded inverters, the method includes the following steps:

[0053] S1. Obtain the load voltage V PCC , the total number of distributed micro-sources in the microgrid, and the functional relationship between the power generation cost of each distributed micro-source and the output active power;

[0054] S2. According to the total number of distributed micro-sources in the S1 microgrid and the power generation cost function of each distributed micro-source, construct the optimal active power output P of each distributed micro-source i * Function relationship P with load current I i * =g i (I);

[0055] S3. According to the load voltage and the optimal active power output function, construct the functional relationship between the output voltage of each micro-source and the load current;

[0056] S4, according to the output voltage relationship as the volta...

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 a cascaded inverter-based distributed economic operation control method for a micro-grid. The method comprises the following steps of: obtaining load voltage of the micro-grid, the total number of distributed micro-sources and a function relationship between power generation cost of each distributed micro-source and output active power; constructing a function relationship between the optimal active power output of each distributed micro-source and the load current according to the load voltage, the total number of micro-sources and a power generation cost function; according to the load voltage and the optimal power output function, constructing a function relationship between the output voltage of each micro-source and the load current; the output voltage forms a voltage reference value of each micro-source, and a frequency reference value of each micro-source is constructed by combining a synchronization theory; according to voltage outer loop and current inner loop control and PWM modulation technology, adjustment of each inverter is realized, and then optimal economic operation control is realized.

Description

technical field [0001] The invention relates to a microgrid distributed economical operation control method based on cascaded inverters, and belongs to the technical field of smart grids. Background technique [0002] At present, in view of economic challenges, advanced technology development and environmental protection, integrating distributed micro-sources into large power grids has become a research hotspot. As an effective carrier of distributed micro-sources, microgrids contain various forms of micro-sources, energy storage transposition and energy conversion devices. Generally, the cost characteristics of different forms of micro-source power generation in the microgrid are different. From the perspective of economy, the micro-source with low power generation cost should generate more power, and vice versa. Therefore, the micro-sources in the micro-grid should work in the economic operation mode. [0003] The economic operation control methods of microgrid can be di...

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
IPC IPC(8): H02J3/38H02J3/48H02J3/00
CPCH02J3/38H02J3/48H02J3/0075H02J2203/10H02J2203/20H02J2310/64Y02P80/14
Inventor 李浪田鹏沈仕巡刘赟周克冯华仲
Owner MOUTAI INST
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