Engine System Dual Power Source Unit for Independent Failure Control
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Solution Overview
Problem
Existing engine systems face challenges in quickly addressing failures such as electric leakage and malfunctions in the power source unit, which can disrupt the normal operation of both the system main portion and the engine, leading to difficulties in controlling the engine system effectively.
Innovation Solution
The engine system incorporates a dual power source unit configuration with parallel system main portion-side and engine-side power source units, along with separate operation controlling units for the system main portion and engine, allowing for independent operation and communication to detect failures and initiate engine stop processes, and includes a starter transformer for efficient power generation and voltage adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single power source unit is used to supply operating power to both the system main portion and the engine, then the device complexity is reduced, but the reliability deteriorates because a failure in the power source unit causes loss of control over both the system main portion and the engine
Solution Approach 1:
The power source unit is segmented into two independent units: a system main portion-side power source unit for controlling the system main portion and an engine-side power source unit for controlling the engine. This segmentation ensures that a failure in one power source unit does not affect the control reliability of the other, thereby resolving the contradiction between device complexity and reliability.
2Device complexity
If a single operation controlling unit is used to control both the system main portion and the engine, then the device complexity is reduced, but the reliability deteriorates because a failure in the controlling unit prevents quick response to failures
Solution Approach 1:
The operation controlling unit is divided into separate controlling functions distributed across the system main portion-side power source unit and the engine-side power source unit. Each unit independently controls its respective component, enabling quick response to failures without requiring a complex centralized controlling unit.
3Ease of operation
If the power source unit is integrated to supply power to both system main portion and engine, then the ease of operation is improved, but the reliability worsens due to inability to independently control system components during failures
Solution Approach 1:
The power source system is segmented into two independent power source units, each capable of independently controlling its respective component (system main portion or engine). This segmentation maintains ease of operation through independent control while improving reliability by preventing cascading failures.
Data Source
AI summary
An engine system including: an engine configured to output shaft power by burning fuel, and a system main portion configured to operate using the shaft power of the engine. The engine system further includes: an operation controlling unit, and a power source unit configured to convert commercial power to operating power and supply the operating power to the operation controlling unit. The power source unit includes: a system main portion-side power source unit configured to supply operating power for controlling the operation of the system main portion, and an engine-side power source unit configured to supply operating power for controlling the operation of the engine. The system main portion-side power source unit and the engine-side power source unit are provided individually and separately from each other.