Wireless Power Device Control System for HVDC Signal Transmission
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Solution Overview
Problem
Existing power device control systems face limitations in signal transmission speed and incur additional costs due to spatial constraints and the need for optical cables in high voltage direct current (HVDC), inverter, or energy storage systems.
Innovation Solution
A power device control system incorporating dual control methods using both wired optical signal transmission and wireless modules, allowing for rapid state information sharing and control signal transmission between power elements and drive modules, enhancing system reliability without the need for additional optical cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If optical cable is installed to improve signal transmission speed, then transmission speed is improved, but spatial constraints and additional cost are incurred
Solution Approach 1:
The patent replaces the mechanical/optical cable transmission system with a wireless communication system. The wireless module transmits control signals and state information without requiring physical cable connections, thereby eliminating spatial constraints and installation complexity while maintaining fast signal transmission capability.
2Reliability
If dual control is implemented to improve system reliability, then system reliability is improved, but device complexity increases
Solution Approach 1:
The wireless module serves multiple functions: it transmits control signals from the upper-level controller to drive modules, transmits state information from drive modules to the controller, and provides a backup communication path. This multi-functionality achieves dual control and improved reliability without proportionally increasing system complexity.
Solution Approach 2:
The wireless module acts as an intermediary communication channel between the upper-level controller and drive modules. It provides an alternative path for control signals and state information, enabling dual control mechanisms while keeping the overall system architecture relatively simple through standardized wireless communication protocols.
Data Source
AI summary
The present disclosure provides a system for controlling a power device including one or more power elements, one or more drive modules configured to provide a drive signal with respect to the one or more power elements through a signal line and provided with a first wireless module, and an upper level controller configured to a control signal with respect to the one or more drive modules through a signal line and provided with a second wireless module corresponding to the first wireless module, wherein each of the one or more drive modules transmits state information of the one or more power elements and the one or more drive modules to the second wireless module through the first wireless module, and the upper level controller transmits a control signal corresponding to the state information to the first wireless module through the second wireless module.