Received Power Control Device Threshold Adjustment
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Solution Overview
Problem
Existing power control systems that calculate target values based on predicted energy consumption can result in insufficient remaining capacity in storage batteries when actual energy consumption exceeds predictions, leading to inadequate power discharge control.
Innovation Solution
A received power control device that periodically obtains information on received energy and remaining capacity, and adjusts a threshold for energy discharge to prevent exceeding a first threshold, thereby ensuring appropriate energy control by dynamically updating the discharge amount based on changing capacity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the target value is calculated based on predicted energy consumption, then the control system can operate efficiently under normal conditions, but when actual energy consumption exceeds predictions, the storage battery will have insufficient remaining capacity
Solution Approach 1:
The control device continuously monitors the remaining capacity of the storage battery and compares it against threshold values. When the remaining capacity falls below a threshold, the control device adjusts the discharge amount accordingly. This closed-loop feedback mechanism ensures that the storage battery operates reliably even when actual energy consumption deviates from predictions, preventing capacity exhaustion while maintaining efficient energy control.
2Power
If the storage battery discharges more power to handle higher than predicted energy consumption, then the received energy control can be maintained, but the storage battery will have insufficient remaining capacity
Solution Approach 1:
The control device dynamically adjusts the discharge amount of the storage battery based on real-time remaining capacity measurements. Instead of using a fixed discharge rate or purely predicted-based control, the system continuously adapts the discharge power according to the actual state of the battery. This dynamic adjustment allows the system to maintain adequate discharge power when needed while preserving sufficient remaining capacity, resolving the contradiction between power output and capacity retention.
Data Source
AI summary
A received power control device (200) that performs control of received energy, which is an amount of power received from a power system per predetermined time at a power receiving point to which a load (302) and an electric storage device (303) are electrically connected, the received power control device (200) performing the control by controlling charge and discharge of at least the electric storage device (303), including: a received energy obtainer (201) that periodically obtains information indicating the received energy; a controller (202) that causes at least the electric storage device (303) to discharge to prevent the received energy from exceeding a first threshold; a remaining capacity obtainer (203) that periodically obtains information indicating a remaining capacity of the electric storage device (303); and a threshold setter (204) that increases the first threshold when an amount of decrease in the remaining capacity per unit time exceeds a second threshold.