Mining Machine Power Control Under Input Voltage Constraints
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Solution Overview
Problem
Mining machines operating under alternating current constraints face limitations in working power, which restrict their efficiency and safety, as excessive input current can lead to accidents, and existing methods to control power do not enhance mining potential.
Innovation Solution
A power adjusting method for mining machines that involves collecting input voltage and adjusting maximum working power by controlling frequency and output voltage, allowing for increased calculation power within safe limits by utilizing a voltage range slightly higher than standard, thereby preventing excessive current.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the working power of mining machines is limited to control input current, then safety is improved, but working efficiency deteriorates
Solution Approach 1:
The patent implements dynamic power adjustment by continuously monitoring input voltage and adapting the maximum working power accordingly. When voltage is high, the system allows higher power (up to voltage×rated current); when voltage is low, it reduces power limits. This dynamic approach replaces static power limiting with adaptive control, resolving the contradiction between safety and efficiency.
Solution Approach 2:
The system changes the power parameter based on voltage conditions. By adjusting the maximum working power parameter according to real-time voltage measurements, the system optimizes mining efficiency while maintaining safety. The power parameter is no longer fixed but varies with voltage, allowing full utilization of available voltage range.
2Productivity
If the maximum working power is increased to improve mining revenue, then productivity is improved, but input current may exceed rated current causing safety issues
Solution Approach 1:
The system employs feedback control by continuously monitoring input voltage and using this information to adjust the maximum working power. The feedback loop ensures that power increases only when voltage conditions permit, preventing current from exceeding rated values while maximizing mining revenue when conditions allow.
Solution Approach 2:
The patent transforms static power limiting into dynamic power adjustment. The maximum working power is no longer a fixed constraint but adapts in real-time based on voltage conditions, allowing the system to achieve higher productivity when voltage is high while maintaining safety when voltage is low.
3Reliability
If standard input voltage (220V) is used with rated current (16A) constraint, then safety is ensured, but calculation power is restricted
Solution Approach 1:
The patent changes the power parameter from a fixed value (220V×16A=3520W) to a variable value that adapts to actual voltage conditions. By allowing power to reach voltage×rated current when voltage is high, the system increases calculation power while maintaining safety through the voltage-based adjustment mechanism.
Solution Approach 2:
The system implements dynamic power adjustment that allows calculation power to fluctuate with voltage. When voltage exceeds 220V, the system permits higher power consumption up to voltage×rated current, thereby increasing calculation power dynamically while maintaining safety through continuous monitoring and adjustment.
Data Source
AI summary
Disclosed is a mining machine power adjusting method, including: when a mining machine is in a working stage, collecting an input voltage of the mining machine; adjusting a maximum working power of the mining machine to a first power value by controlling a working frequency and an output voltage of the mining machine when the input voltage is lower than a pre-determined voltage threshold; and adjusting the maximum working power to a second power value by controlling the working frequency and the output voltage of the mining machine when the input voltage is higher than or equal to the voltage threshold, where the first power value is the product of the input voltage multiplied by a rated current of the mining machine, and the second power value is the product of the voltage threshold multiplied by the rated current. According to the disclosure, the power of the mining machine is adjusted according to changes in the input voltage by fully utilizing a voltage range slightly higher than a standard input voltage, so that the calculation power of the mining machine can be greatly increased to achieve better mining revenues without significantly increasing the power consumption ratio of the mining machine while ensuring the stable and safe running of the mining machine.