Genset Load Control During Communication Failure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In a genset system, communication failures between gensets and the control system lead to underutilization or overloading, causing stress on the system and potential electrical failures due to inaccurate load management.
Innovation Solution
A method and system that recognize communication failures, determine the operating state of each genset, and implement a load control scheme to couple loads based on available power, ensuring balanced operation by calculating available power from both online and assumed online gensets and managing load connection according to a priority sequence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the central controller couples loads to the common bus based on total power generated by gensets during normal operation, then the genset system operates efficiently with optimal load utilization, but communication failure between gensets and the central controller causes inaccurate load management leading to underutilization or overloading
Solution Approach 1:
The control system stores operating state information of each genset in memory before communication failure occurs. This preliminary action ensures that when communication is lost, the controller can still access accurate data about genset operating states (online/offline, power generation capacity) to make informed load coupling decisions, preventing both underutilization and overloading scenarios
Solution Approach 2:
The system continuously monitors communication status between the central controller and gensets, and based on this feedback, automatically switches control modes. When communication failure is detected, the controller transitions from normal centralized control to autonomous control using stored operating state data, ensuring continuous accurate load management regardless of communication status
2Reliability
If the central controller operates autonomously without real-time communication with gensets, then the system maintains operation during communication failures, but the controller cannot accurately determine total power generation leading to improper load coupling
Solution Approach 1:
The control system pre-stores operating state information of each genset in memory before communication failures occur. This includes data about whether each genset is online or offline and their power generation capacities. When communication is lost, the controller retrieves this stored information to accurately calculate total available power from gensets, enabling proper load coupling decisions without real-time data
Solution Approach 2:
The system creates a copy of the genset operating state information and stores it in the controller's memory. This copy serves as a backup data source that the controller can use when real-time communication with gensets is unavailable, ensuring continuous accurate knowledge of system capabilities without requiring constant communication
Data Source
AI summary
A method for controlling a genset system is provided. The method includes recognizing a communication failure between one or more gensets of a plurality of gensets and a control system and determining an operating state of each of the one or more gensets prior to the communication failure. The method further includes operating the genset system, upon communication failure, according to a load control scheme. The load control scheme includes determining an available power of the genset system based on the determined operating state of each of the one or more gensets and coupling one or more loads to the genset system based on the available power.