Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for operating an inverter and grid fault tolerant inverter

A technology for inverters and power supply networks, applied in the direction of irreversible DC power input conversion to AC power output, electrical components, single-network parallel feeding arrangement, etc., can solve the problems of large space requirements, high cost of bootstrap capacitors, etc. , to achieve the effect of ensuring full charging

Active Publication Date: 2016-04-20
SMA SOLAR TECH AG
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But using a higher capacity bootstrap capacitor is undesirable due to higher cost and consequently greater space requirements

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
  • Method for operating an inverter and grid fault tolerant inverter
  • Method for operating an inverter and grid fault tolerant inverter
  • Method for operating an inverter and grid fault tolerant inverter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] figure 1 A schematic circuit diagram of a part of an inverter 1 for feeding electrical power into a supply network 3 is shown. The inverter 1 can be part of a photovoltaic system, for example. A filter 2 is arranged between the inverter 1 and the supply network 3 , which filter may have a combination of inductive and capacitive elements. The filter 2 generates a voltage curve that is as sinusoidal as possible and is therefore also referred to as a sinusoidal filter 2 . As shown in the figure, the sinusoidal filter 2 can be designed as a separate component or integrated in the inverter 1 .

[0018] It should be noted that other elements not shown in the figure may also be arranged between the inverter 1 and the power supply network 3 . These elements can be switches or safety mechanisms, for example.

[0019] The inverter 1 is designed for the three-phase feeding of the power supply network 3 . The number of three phases is merely exemplary; the inverter according t...

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 relates to a method for operating an inverter (1) comprising at least one bridge structure (10) controllable by modulation for feeding electrical power into a supply network (3), the method comprising The steps are as follows: firstly, the inverter (1) is operated by unipolar control of the at least one bridge structure (10), and the power supply network (3) is monitored for grid faults. When a grid fault is detected, the inverter (1) is operated at least temporarily by bipolar control of the at least one bridge structure (10). The invention also relates to a network fault-tolerant inverter designed to carry out the method.

Description

technical field [0001] The invention relates to a method for operating an inverter comprising at least one modulatingly controllable bridge structure for feeding electrical power into a power supply network. The invention also relates to an inverter tolerant to grid faults. Background technique [0002] Inverters are used to convert direct current generated, for example, by a photovoltaic generator of a photovoltaic system into alternating current suitable for feeding into a power supply network. In view of the increasing use of renewable energy power generation equipment, especially photovoltaic equipment, power companies have increased the parameter requirements for fed-in current. On the part of the operator of the supply network there is often a requirement stated in the so-called grid code (GridCode) that renewable energy generators cannot be switched off, as was customary in the past, in the event of grid disturbances, such as voltage fluctuations, but must instead A...

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 Patents(China)
IPC IPC(8): H02M7/487H02J3/38
CPCH02M7/487H02M7/483H02M7/5395H02M7/49H02M1/325
Inventor P·科雷亚瓦斯奎茨T·米勒H·沃尔夫
Owner SMA SOLAR TECH AG
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com