Rectifier Arrangement With Interconnection Apparatus For Network Adaptation

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Solution Overview

Problem

Existing rectifier arrangements face inefficiencies and increased costs due to the need for multiple switches and complex configurations to adapt to different supply networks, particularly when connecting to single-phase or three-phase networks with neutral conductors, leading to higher electrical resistance and losses.

Innovation Solution

A rectifier arrangement with an interconnection apparatus that allows for multiple configurations by connecting the first connection to either first or second circuit arrangement connections in forward or reverse directions, reducing the number of switches and enabling efficient operation across various supply networks by using a changeover arrangement and coil in series between circuit connections, and incorporating an interconnection matrix for versatile configuration options.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple switches are used to adapt to different supply networks, then adaptability is improved, but device complexity and electrical resistance increase

Engineering Contradiction:

Improveadaptability to different supply networksVSAvoidnumber of switches

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The rectifier circuit is designed with a universal configuration that can operate with both single-phase and three-phase supply networks using the same circuit topology. The circuit arrangements can be connected in different configurations (series or parallel) depending on the supply network type, eliminating the need for multiple dedicated circuits for different network types.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The rectifier arrangement employs dynamic reconfiguration capability where circuit arrangements can be switched between series and parallel connections based on the detected supply network type. This dynamic adaptability allows a single static circuit design to serve multiple operational modes without requiring permanent dedicated hardware for each network type.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If multiple switches are used for different configurations, then adaptability is improved, but electrical resistance and losses increase

Engineering Contradiction:

Improveconfiguration flexibilityVSAvoidelectrical resistance and losses

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

Multiple circuit arrangements are merged into a single integrated rectifier circuit that can operate in different configurations. By combining the functionality of what would traditionally require separate circuits for single-phase and three-phase networks into one unified design, the total number of switches and associated resistance is reduced while maintaining adaptability.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If complex configurations are used to adapt to different networks, then adaptability is improved, but manufacturing costs increase

Engineering Contradiction:

Improvenetwork compatibilityVSAvoidmanufacturing costs

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

A single universal rectifier circuit design serves multiple network types (single-phase and three-phase), eliminating the need to manufacture separate dedicated circuits for each network type. This universality simplifies the manufacturing process, reduces component variety, and lowers production costs while maintaining full network compatibility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution reduces electrical resistance, lowers losses, and decreases switch costs by allowing flexible connections that optimize efficiency across different supply networks, including those with neutral conductors, while maintaining safety and reducing voltage fluctuations.

Implementation Method 1

The intermediate circuit has a first line, a second line and at least one capacitor between the first and second lines

Methodology Applied

Scientific EffectCapacitance: Capacitance

Implementation Method 2

A changeover arrangement and a coil are connected in series between the respective first and second circuit arrangement connections

Methodology Applied

Scientific EffectMagnetic energy storage: Inductor

Data Source

PatentUS11637505B2Rectifier arrangement

Publication Date: 2023.04.25 DR ING H C F PORSCHE AG

AI summary

A rectifier arrangement (20) for rectifying an AC voltage into a DC voltage has connections, circuit arrangements, an interconnection apparatus (26) and an intermediate circuit (50). The connections include first and second connections (22, 21). The intermediate circuit (50) has a first line (51), a second line (52) and at least one capacitor (61, 62) between the first and second lines (51, 52). The circuit arrangements (31, 32, 33, 34, 35, 36) each have a first circuit arrangement connection (A) and a second circuit arrangement connection (B), between which a changeover arrangement (92) and a coil (91) are connected in series. The interconnection apparatus (26) enables at least: a first configuration in which the first connection (22) is connected to at least one first circuit arrangement connection (A), and a second configuration in which the first connection (22) is connected to at least one second circuit arrangement connection (B).