Renewable Energy Storage Current Loop Control
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Solution Overview
Problem
Current systems for renewable energy generation and storage face challenges in effectively utilizing and storing renewable energies like solar and wind electricity, which are not efficiently integrated for simultaneous energy generation and storage.
Innovation Solution
A renewable energy generation and storage system incorporating multiple energy generation systems, energy processors, energy storage systems, a voltage controller, and a bi-directional current inverter, forming a current control loop to manage and adjust charge and discharge operations, allowing for efficient storage and output of renewable energy from multiple sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If renewable energy systems are integrated for simultaneous generation and storage, then energy utilization efficiency is improved, but system complexity increases
Solution Approach 1:
The patent combines multiple energy generation systems (solar, wind, etc.) with energy storage systems into a unified integrated system. The energy processors and bi-directional current inverters enable seamless interaction between generation and storage components, allowing simultaneous energy generation and storage operations while improving overall energy utilization efficiency.
Solution Approach 2:
The energy processors are designed with multi-functional capabilities to handle different types of renewable energy inputs (solar, wind, etc.) and perform multiple operations including conversion, regulation, and coordination with storage systems. The bi-directional current inverters can operate in both charging and discharging modes, providing universal functionality across different operational states.
2Productivity
If current control loop is implemented for managing charge and discharge operations, then energy storage efficiency is improved, but control system complexity increases
Solution Approach 1:
The patent implements a current control loop that continuously monitors the actual current flowing to and from energy storage systems and compares it with reference current values. The voltage controller adjusts the reference current based on feedback from the bi-directional current inverter, enabling precise control of charge and discharge operations while maintaining system stability through closed-loop feedback mechanisms.
Solution Approach 2:
The control system automatically regulates charge and discharge operations by generating reference currents based on voltage differences and system state. The voltage controller and bi-directional current inverter work autonomously to manage energy flow, reducing the need for external manual control while maintaining high energy storage efficiency through self-regulating mechanisms.
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
Enables efficient storage and generation of renewable energy from multiple sources, ensuring energy availability while providing output voltage to loads, thereby achieving simultaneous energy generation and storage.
Implementation Method 1
a bi-directional current inverter, which is coupled to the voltage controller and the plurality of energy storage systems, and configured to generate the output voltage according to the plurality of DC voltages
Data Source
AI summary
A renewable energy generation and storage system forms a current control loop for controlling a current charge operation and a current discharge operation to a plurality of energy storage cells at the same time. As a result, renewable energy from multiple sources may be stored while providing output voltage to a load, and therefore the renewable energy generation and storage system of the present invention may achieve energy generation and storage at the same time.