Gen-Set Control System Proactive Load Relief
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Solution Overview
Problem
Existing gen-set control systems are inefficient in responding to rapid changes in electrical load, leading to potential engine stalling or lugging due to delayed adaptation and lack of proactive load management, which can result in productivity and efficiency losses.
Innovation Solution
A control system comprising an engine control module and an automatic voltage regulator that monitors voltage, current, and power factor to generate load commands and request load relief before the engine deviates from its desired operating range, allowing for proactive adjustment of engine parameters to maintain stability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the engine increases torque output to meet high electrical load demands, then the power output is improved, but the engine speed droops excessively causing lugging or stalling
Solution Approach 1:
The control system performs preliminary action by anticipating load changes before they occur. The controller monitors electrical load parameters and predictively adjusts engine torque and speed settings in advance, allowing the engine to prepare for upcoming load demands without experiencing excessive speed droop or lugging conditions
2Stability of the object's composition
If the engine speed is kept relatively constant to maintain frequency stability, then the frequency output is improved, but the engine cannot respond quickly to sudden load increases
Solution Approach 1:
The control system applies dynamics by enabling the engine speed to be variable rather than fixed. The controller dynamically adjusts engine speed within an acceptable range, allowing faster response to load changes while maintaining frequency stability through active control that keeps the speed-frequency relationship optimized under varying load conditions
3Measurement precision
If the gen-set controller monitors power output for extended periods to calculate average power, then the measurement accuracy is improved, but the response time to load changes is delayed
Solution Approach 1:
The control system performs preliminary action by continuously monitoring electrical load parameters (voltage, current, power factor) and predicting upcoming load changes before they fully manifest. This allows the controller to prepare engine settings in advance, reducing the effective response time while maintaining accurate power measurements through continuous rather than periodic sampling
Data Source
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AI summary
A Gen-Set (10) control system is disclosed. The control system has an engine (12) having a desired operating range and a generator (14) driven by the engine to produce an electrical power output. The control system also has an engine control module (30) communicatively coupled with the engine, and configured to change and operating parameter of the engine based on a load command before a load on the engine causes the engine to deviate from the desired operating range. The control system further has an automatic voltage regulator (32). The automatic voltage regulator is configured to monitor at least one of a voltage output, a current output, and a power factor of the generator and generate the load command based on a change in at least one of the voltage output, the current output, and the power factor. The automatic voltage regulator (32) is also configured to deliver the load command to the engine control module (30).