Load Bank Control Module for Remote Generator Maintenance
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Solution Overview
Problem
Existing load banks are time-consuming, inaccurate, and limited in their ability to adjust loads, lack remote control capabilities, and are not easily modified or upgraded, and maintenance processes for power generators often require shutdowns, especially for mobile equipment.
Innovation Solution
A load bank module with a human-machine interface and power quality analyzer that allows for automatic load adjustments, remote control, and maintenance scheduling, using MODBUS protocol for communication, enabling precise load control and continuous operation during maintenance procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of resistors is used to change load, then load bank can be controlled, but the process becomes time-consuming and tedious
Solution Approach 1:
The patent replaces the manual mechanical system of inserting and extracting resistors with an automated electronic control system. The microprocessor-based controller automatically switches resistors in and out of the circuit using electronic switching mechanisms, eliminating the need for manual mechanical intervention and significantly reducing adjustment time.
Solution Approach 2:
The load bank system performs self-adjustment through automated control. The microprocessor controller monitors system parameters and automatically adjusts the load by controlling the switching of resistors based on preset conditions or input signals, enabling the system to service itself without manual intervention.
2Adaptability or versatility
If step-based load adjustment is used, then load changes can be made, but the type and amount of load changes are limited
Solution Approach 1:
The patent implements dynamic load adjustment capabilities where the load bank can continuously vary the load amount and type rather than being restricted to fixed steps. The microprocessor controller dynamically calculates and applies appropriate resistor combinations based on desired load parameters, enabling flexible adaptation to different testing requirements.
Solution Approach 2:
The load bank divides the total load into multiple discrete resistor segments that can be independently switched. This segmentation allows the system to create various load combinations by switching different segments in series or parallel configurations, providing versatile load adjustment while maintaining manageable system complexity through modular design.
3Adaptability or versatility
If remote control capability is added to load bank, then operational flexibility improves, but device complexity increases
Solution Approach 1:
The microprocessor controller serves multiple functions: it controls the load adjustment, monitors system parameters, processes remote control signals, and manages communication protocols. By consolidating these functions into a single multi-functional controller, the system achieves remote control capability without proportionally increasing overall device complexity.
Solution Approach 2:
The patent introduces a communication interface as an intermediary between the remote control system and the load bank controller. This intermediary layer handles protocol translation and signal processing, allowing remote control functionality to be added without directly complicating the core load control mechanisms.
4Reliability
If fuel filter maintenance is performed by running engine at high temperature, then filter performance improves, but generator must shut down for extended period
Solution Approach 1:
The load bank controller monitors engine operating parameters including temperature and load conditions. Based on this feedback, the system automatically adjusts the applied load to maintain optimal temperatures for fuel filter maintenance, enabling the process to be completed during continuous operation rather than requiring shutdown.
Solution Approach 2:
The patent enables continuous operation of the generator during fuel filter maintenance by dynamically adjusting the load bank to compensate for any changes in engine performance. The useful action of power generation continues uninterrupted while the maintenance process occurs, eliminating the need for shutdown periods.
Data Source
AI summary
Apparatuses and associated methods for load bank and power generator control are described herein. In one aspect, a method for controlling a load bank can include: receiving input via a human-machine interface (HMI) corresponding to setpoints of operation for the load bank; receiving data via a power quality analyzer and corresponding to load bank operating parameters; determining, via the power quality analyzer, whether the load bank is operating according to the setpoints of operation received from the HMI; and generating a set of commands for adjusting the load bank operating parameters based on whether the load bank is operating according to the setpoints of operation.