Fracturing System Energy Storage Power Management
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Solution Overview
Problem
The existing fracturing systems face challenges such as high construction costs, environmental pollution, and inefficiencies due to the reliance on gas turbines and internal combustion engines, which require multiple start devices, large equipment setups, fuel waste, and limitations in power generation and stability, especially in remote or offshore locations.
Innovation Solution
A fracturing system incorporating an energy storage unit that stores surplus electrical energy and supplies it as needed, reducing the need for multiple generators, minimizing internal combustion engine use, and providing stable power, while allowing for flexible energy management and non-carbon energy sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple generators are used to ensure sufficient power supply, then power supply reliability is improved, but equipment complexity and occupied area increase
Solution Approach 1:
The patent combines multiple generators into a single integrated power supply system with shared control and management infrastructure. The system integrates multiple generator units that can operate independently or in parallel, reducing the need for separate control systems, fuel supply systems, and support equipment for each generator, thereby reducing overall equipment complexity while maintaining power supply reliability
Solution Approach 2:
The power supply system is designed with universal components that can serve multiple generators simultaneously. The control system, fuel supply system, and support infrastructure are configured to handle multiple generator units through a single integrated platform, reducing the total number of components needed while ensuring reliable power supply
2Reliability
If generators are kept running during clearance periods to maintain readiness, then power supply reliability is improved, but fuel consumption increases
Solution Approach 1:
The system dynamically adjusts generator operation based on real-time power supply needs. During clearance periods when power demand is low, the system can reduce the number of running generators or shut them down completely, then quickly start备用 generators when power is needed again. The control system monitors load requirements and optimizes generator operation accordingly, maintaining power supply readiness while minimizing fuel consumption during low-demand periods
Solution Approach 2:
The system implements periodic operation cycles where generators are started and stopped based on the fracturing operation phases. During high-power fracturing operations, generators run continuously; during clearance periods for inspection and preparation, generators are shut down or reduced to standby mode. This periodic action pattern aligns generator operation with actual power需求的波动，reducing unnecessary fuel consumption while maintaining operational readiness
3Productivity
If generator power is increased to meet high-power fracturing operations, then productivity is improved, but equipment complexity and fuel supply requirements increase
Solution Approach 1:
The power supply system is segmented into multiple independent generator units, each capable of operating at optimal power levels. Instead of using a single large-capacity generator that would require complex control systems and large fuel tanks, the system divides the total power requirement into several smaller generator units. Each unit can be independently controlled and fueled, simplifying the overall system design while meeting the high power demands of fracturing operations
Solution Approach 2:
The system uses multiple generators operating at partial capacity rather than a single generator operating at excessive capacity. Each generator in the multi-generator system operates within its optimal power range, avoiding the need for oversized equipment. This approach provides the necessary total power output while keeping individual generator sizes manageable and the overall system less complex
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The energy storage unit maintains generator efficiency and stability, reduces equipment costs and space, and enables the use of non-carbon energy sources, enhancing the environmental sustainability and operational efficiency of fracturing operations.
Implementation Method 1
an energy storage unit electrically connected respectively with the electricity supply unit and the functional unit, the energy storage unit being configured to store electrical energy from the electricity supply unit and supply electrical energy to the functional unit
Data Source
AI summary
A fracturing system includes an energy storage having a battery and a switch, a switch cabinet, a plurality of transformers, a plurality of rectifiers, and a plurality of inverters respectively corresponding to and connected with a plurality of fracturing apparatuses. The switch cabinet is connected with the plurality of transformers. The plurality of transformers are respectively connected with the plurality of rectifiers. Each of the plurality of rectifiers is directly connected with a DC bus and the energy storage. The DC bus is directed connected to the plurality of inverters. The energy storage is directly electrically connected with the DC bus or each of the plurality of inverters. The energy storage is configured to power the plurality of fracturing apparatuses.