Substation Switch Control System with Dynamic Track Kinetics
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Solution Overview
Problem
High voltage circuit breakers in substation control systems face issues with unreliable connections between drive systems and circuit breakers, constant displacement ratios limiting optimization, and rebound effects during closing operations.
Innovation Solution
A control system with angularly oriented tracks to control the kinetics of opening and closing, allowing variable displacement ratios and suppressing rebound effects by optimizing terminal velocity, using a configuration with a control arm, connecting arms, and sliding elements with tracks to manage the movement of circuit breakers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotational cam is used to provide variable displacement ratio, then the displacement ratio can be optimized, but the closing speed cannot be sufficiently increased and rebound effect persists
Solution Approach 1:
The patent applies the dynamics principle by making the track's angular orientation variable rather than fixed. The track is configured to rotate about a pivot point during the closing operation, allowing the angle between the track and control arm to change dynamically. This dynamic adjustment enables the system to achieve both variable displacement ratio and high closing speed, resolving the contradiction by allowing the geometry to adapt in real-time during operation rather than being static like a rotational cam.
2Device complexity
If a constant ratio configuration is used, then the structure is simple, but the opening and closing operation cannot be optimized
Solution Approach 1:
The patent implements a dynamic track orientation mechanism that rotates during operation, providing variable displacement ratio without requiring a complex rotational cam structure. This dynamic approach achieves optimization capability while maintaining relatively simple structural elements (track, pivot point, connecting arms), thus resolving the contradiction between structural simplicity and optimization capability.
3Device complexity
If the control system uses traditional connecting arms, then the connection is straightforward, but the connection reliability is insufficient
Solution Approach 1:
The patent enhances connection reliability by implementing a dynamic track mechanism that actively controls the motion trajectory of the connecting arm throughout the entire operating range. The rotating track ensures optimal force transmission angles and maintains reliable connection between the control arm and circuit breaker, avoiding the reliability issues of traditional rigid connecting arms while keeping the mechanism relatively simple.
Data Source
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AI summary
The invention relates to a control system (1) for at least a first switch. The control system (1) comprises a a control arm (10) mounted for displacement between a first and a second position in first direction (19), the control arm (10) comprising a first end (11) configured to be connected to a drive system and a second end (12) opposite the first end (11) and a first connecting arm (20) mounted for displacement along a second direction (29) that traverses the first direction (19), the first connecting arm (20) comprising a first end (21) for connection to the first switch and a second end (22) opposite to the first end. The control system further comprises at least a first sliding element (30) comprising a first track (31) and mounted for displacement in one of the first and the second directions (19, 29). The second end (12, 22) of the one of the control arm (10) or the first connecting arm (20) which is displaceable in the same direction as the first sliding element (30), is configured to engage with the first track (31) and is constrained for movement in same direction as the first sliding element (30). The second end (22, 12) of the other of the control arm (10) and the first connecting arm (20) is arranged to move integrally with the first sliding element (30).