Independent Generator Switchgear for Hydraulic Fracturing Blackout Protection
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Solution Overview
Problem
Hydraulic fracturing systems powered by electric turbines have limited redundancy and blackout protection, leading to potential system failures if one turbine loses power, and the inability to shed load effectively, causing overloads and shutdowns.
Innovation Solution
A system with independent generators for primary and backup components, including a load shedding system that monitors power draw and can shut down non-essential components to prevent overloads, ensuring continuous operation by switching power to backup components if primary generators fail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If all turbine generators are synced and tied together through a single switchgear point, then power distribution is simplified, but redundancy and blackout protection are limited
Solution Approach 1:
The patent divides the power distribution system into multiple independent switchgear points, with each switchgear receiving power from a subset of turbine generators. This segmentation creates electrical isolation between groups, so that a failure in one switchgear or its connected turbines does not affect other groups. The system is divided into multiple redundant pathways for power delivery to fracturing equipment.
2Reliability
If one turbine loses power in a synced system, then the remaining turbines must compensate, but sufficient power may not remain to continue pumping operations
Solution Approach 1:
The patent configures the system with redundant turbine-generator-switchgear pathways before failures occur. Each critical piece of fracturing equipment is connected to multiple independent power sources through different switchgear points. This pre-established redundancy ensures that if one turbine fails, other turbines can immediately take over without requiring load compensation that would overload remaining capacity.
3Reliability
If the system monitors power draw to detect overloads, then shutdown can be prevented, but the ability to shed load is limited in conventional systems
Solution Approach 1:
The patent implements a dynamic load shedding system with multiple tiers of controllable loads. The system can selectively disconnect non-critical equipment (such as auxiliary pumps, control systems, or less critical fracturing equipment) while maintaining power to primary pumping operations. Breakers are configured to automatically shed specific loads when overload conditions are detected, providing adaptive response to varying power availability.
Data Source
AI summary
A system for powering equipment used in a hydraulic fracturing operation, the system including at least one first generator in electrical communication with a first switchgear for providing power to primary components of a hydraulic fracturing operation, and at least one second generator in electrical communication with a second switchgear for providing power to backup components of a hydraulic fracturing operation. The at least one first generator is independent of the at least one second generator so that if the at least one first generator loses the ability to generate electricity, the at least one second generator can continue to generate electricity.