Bidirectional Inverter Grid-Parallel Energy Supply
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Solution Overview
Problem
Existing methods for supplying electrical energy to consumers are inadequate as they typically rely on a single voltage source (either AC or DC) and lack the ability to dynamically adjust power supply based on data or power reference parameters, making them impractical for efficient and flexible energy distribution.
Innovation Solution
A method utilizing a control element to establish a switchable, electrically conductive line connection between a consumer and multiple voltage sources (DC and AC) via bidirectional inverters, measuring devices, and a control unit that analyzes power requirements to optimize energy supply from the most advantageous source, minimizing power consumption and ensuring continuous energy delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single voltage source (AC or DC) is used to supply electrical energy to consumers, then the system structure is simple, but the power supply reliability and flexibility are reduced
Solution Approach 1:
The patent combines multiple voltage sources (AC and DC) into a single power supply system that can draw energy from both sources. The control unit manages the integration of these sources, allowing the system to merge their capabilities to improve reliability while maintaining manageable complexity through automated control.
Solution Approach 2:
The power supply system is designed to perform multiple functions by drawing electrical energy from different types of voltage sources (AC and DC) depending on availability and requirements. This multi-functionality allows the system to adapt to various power source conditions and maintain reliable operation.
2Adaptability or versatility
If power supply is fixed to one voltage source, then the system operation is simple, but the adaptability to different power conditions is limited
Solution Approach 1:
The control unit dynamically switches between AC and DC voltage sources based on real-time conditions such as source availability, consumer power requirements, and predefined parameters. This dynamic adaptation allows the system to respond flexibly to changing power conditions while the control logic manages the complexity of source selection and switching.
3Productivity
If dynamic switching between voltage sources is implemented, then the power supply flexibility and efficiency are improved, but the control system complexity increases
Solution Approach 1:
The control unit implements feedback mechanisms by continuously monitoring the status of voltage sources and consumer power requirements. Based on this feedback, the control unit makes informed decisions about which voltage source to use, when to switch between sources, and how to optimize power supply efficiency according to predefined parameters and actual system conditions.
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 enables efficient, flexible, and reliable electrical energy supply to consumers by dynamically switching between voltage sources based on power requirements, reducing energy costs and ensuring uninterrupted power even when one source is unavailable, thus acting as an improved emergency power generator.
Implementation Method 1
bidirectional inverters
Data Source
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AI summary
The present invention relates to a method for supplying at least one consumer with electrical energy. The at least one consumer is supplied with energy from a DC voltage source and/or an AC voltage source. According to the invention, a method for supplying, in particular for a grid-parallel supply to a low-voltage network, at least one consumer with electrical energy is implemented in an electrical installation comprising at least one DC voltage source, an inverter, in particular a bidirectional inverter, a measuring device, in particular a power meter, which measures the electrical power of the at least one consumer, an AC voltage source, and a control element, characterized in that the control element comprises at least one evaluation unit.The control element analyzes the measurement data of the at least one measuring device to determine whether the consumer power is greater than the power available from the DC voltage source, and establishes an electrically conductive connection (line connection), in particular by means of a switch, between at least the AC voltage source and the at least one consumer when this condition is met.