Auxiliary Charging Module for PV Panel Reconfiguration
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Solution Overview
Problem
Existing photovoltaic systems face limitations in powering auxiliary equipment during initial setup and operational incidents, as they rely solely on stored energy, preventing continuous operation without external power sources.
Innovation Solution
An auxiliary charging module with a switch allows photovoltaic panels to switch between series and parallel connections, enabling energy generation and storage through a DC/DC converter to charge batteries and power the system during initial stages and operational incidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If photovoltaic panels are connected only in series to the auxiliary power supply device, then the system structure is simple, but the system cannot generate sufficient power during initial setup and operational incidents
Solution Approach 1:
The patent implements dynamic reconfigurability of the photovoltaic panel connections, allowing the system to switch between series and parallel configurations based on operational needs. The auxiliary charging module includes switching circuitry that can dynamically change the connection topology, enabling the system to adapt its power generation capability during initial setup and operational incidents while maintaining structural simplicity through a unified module design.
2Power
If photovoltaic panels are connected in parallel to generate more power, then power generation capability increases, but the electric wiring complexity increases
Solution Approach 1:
The auxiliary charging module serves as an intermediary device that manages the complexity of electric wiring between photovoltaic panels and the power supply system. It includes switching circuitry and control logic that handles the reconfiguration of panel connections, isolating the complexity from the main system and enabling seamless transitions between series and parallel configurations without requiring complex external wiring modifications.
3Reliability
If the system relies only on stored energy in the auxiliary power supply device, then the system can operate independently, but the operation duration is limited
Solution Approach 1:
The system implements self-service charging capability where photovoltaic panels can directly recharge the auxiliary power supply device during initial setup and operational incidents. The auxiliary charging module enables this self-service function by allowing panels to be connected in parallel to generate power that charges the battery, eliminating the need for external power sources and extending independent operation duration through continuous self-recharging.
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 continuous energy supply to photovoltaic systems during setup and operational periods by modifying panel connections to charge batteries and power the system, overcoming the reliance on stored energy.
Implementation Method 1
a photovoltaic system for generating electricity, wherein said system includes an auxiliary charging module which enables said system to be powered by the electricity generated by at least one photovoltaic panel
Implementation Method 2
The auxiliary charging module includes a switch or commutation device which enables the plurality of photovoltaic panels, usually connected in series to the auxiliary power supply device, to modify their electric configuration wherein at least one photovoltaic panel is connected in parallel to the auxiliary power supply device in order to supply electric current generated by these photovoltaic panels connected in parallel to charge the battery
Data Source
AI summary
A photovoltaic system or installation, for generating electricity, which includes auxiliary charging modules for each solar tracker of the photovoltaic system to charge or supply energy to an auxiliary power supply device such as a battery, in order to power the photovoltaic system during the initial stages of the set-up process of the electric energy generation plant or during incidences in the normal operation of the photovoltaic system or installation.In addition to the auxiliary charging modules, the photovoltaic system comprises: one or more solar trackers, wherein each solar tracker comprises a plurality of photovoltaic panels, a DC/AC inverter to transform the DC electricity generated into AC electricity which is then supplied to an electric grid or an electric power distribution system, and a solar tracker controller, for each solar tracker, which controls several aspects of the one or more solar trackers of the photovoltaic system.