Intelligent Power Network Device State Transition
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Solution Overview
Problem
Intelligent electrical power network control and protection devices face challenges in efficiently managing power states during main and auxiliary power source fluctuations, leading to potential equipment overload and reduced operational efficiency during power outages or partial losses.
Innovation Solution
The device includes a power supply connection to both main and auxiliary power sources, with units configured to monitor power levels and automatically switch operational states from an operative mode to a power saving mode in response to detected power losses or decreased auxiliary power levels, utilizing an auxiliary power source and allowing for external control commands to manage these transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device operates in operative mode during power outages, then critical operations can be maintained, but the auxiliary power source depletes quickly and equipment may overload
Solution Approach 1:
The device dynamically adjusts its operating state between operative mode and power saving mode based on real-time power availability. The control unit monitors power source status and automatically transitions units between modes to optimize the balance between maintaining critical operations and conserving auxiliary power, thereby extending the duration of power supply during outages.
Solution Approach 2:
The system changes operational parameters by switching units between different operating states (operative and power saving modes). This parameter change allows the device to adapt power consumption levels to match available power supply, ensuring critical functions continue while extending overall system operational duration during power outages.
2Duration of action of moving object
If the device switches to power saving mode during power outages, then auxiliary power source duration is extended, but operational efficiency and response capability are reduced
Solution Approach 1:
The device segments its units into different operational categories, allowing critical units to remain in operative mode while non-critical units transition to power saving mode. This segmentation enables the system to maintain essential functions at full efficiency while extending overall power source duration by reducing consumption from non-essential components.
Solution Approach 2:
Different units within the device are assigned different operational qualities based on their criticality. Critical units maintain high-performance operative mode characteristics, while non-critical units operate in low-power mode. This local differentiation optimizes the balance between maintaining operational efficiency for essential functions and extending auxiliary power source duration.
3Loss of energy
If the device monitors and manages power states for multiple units, then power usage optimization is improved, but device complexity increases
Solution Approach 1:
The control unit automatically monitors power source status and manages transitions between operative and power saving modes without external intervention. This self-service capability reduces the need for complex external control systems while achieving effective power usage optimization through automated decision-making based on real-time power availability.
Solution Approach 2:
The system implements feedback mechanisms where the control unit continuously monitors power source status and uses this information to automatically adjust the operational state of units. This feedback loop enables effective power management while keeping the control mechanism relatively simple, as the system responds automatically to power condition changes without requiring complex predictive algorithms.
Data Source
AI summary
An intelligent electrical power network control and/or protection device comprises at least one power supply connection for connecting the device to a main power source and an auxiliary power source and at least one unit configured to monitor main power, the unit being configured to activate a signal indicating lack of main power in response to lack of main power. The device further comprises at least one unit configured to provide a state control operation for changing an operating state of at least one unit of the device or an operating state of at least one unit to be connected to the device from an operative mode t a power saving mode in response to the activated signal indicating the detected lack of main power.