Generator Load Balancing for Variable Biogas Power Output
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Solution Overview
Problem
Power generation systems using landfill gas face challenges due to irregular biogas pressure and variable composition, leading to unreliable energy output and inefficiencies, with stranded natural gas wells being flared or vented as a result.
Innovation Solution
A system with a generator set, power distributor, and controller that dynamically balances sub-loads within a data center by selectively connecting and disconnecting portions based on anticipated power output, using sensors and a controller to optimize energy use and stabilize the power grid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If biogas-fueled generators are used for power generation, then renewable energy production is achieved, but irregular biogas pressure and variable composition cause unreliable energy output
Solution Approach 1:
The system dynamically adjusts the operational state of data center sub-loads based on real-time biogas pressure and generator output conditions. The controller continuously monitors biogas pressure variations and selectively connects or disconnects sub-loads to match the available power supply, transforming the static load configuration into a dynamic adaptation mechanism that resolves the reliability contradiction.
Solution Approach 2:
The data center load is divided into multiple independent sub-loads that can be selectively connected or disconnected. This segmentation allows the system to partially utilize the available biogas-powered generation rather than requiring full or no operation, enabling fine-grained matching between variable renewable supply and demand segments.
2Loss of energy
If landfill gas is used as fuel, then energy utilization from waste is achieved, but heterogeneous composition affects generator reliability
Solution Approach 1:
The system uses the variable composition characteristics of landfill gas itself to determine operational parameters. By monitoring the actual gas composition and pressure conditions, the controller automatically adjusts sub-load configuration to match the available energy quality, allowing the system to serve itself rather than requiring external stabilization infrastructure.
Solution Approach 2:
The system changes operational parameters (specifically, the configuration of connected sub-loads) in response to changes in fuel quality parameters (biogas composition and pressure). This dynamic parameter adjustment allows the system to maintain reliability across varying fuel conditions by matching load demands to available energy supply characteristics.
3Use of energy by moving object
If biogas pressure varies with environmental conditions, then renewable energy generation is achieved, but additional transients and volatility threaten grid stability
Solution Approach 1:
The controller implements a feedback mechanism that continuously monitors biogas pressure and generator output conditions, then automatically adjusts sub-load configuration in response. This closed-loop control creates a stabilizing feedback that counteracts the volatility introduced by environmental variations in biogas production, maintaining grid stability while maximizing renewable energy utilization.
Solution Approach 2:
The system takes preliminary action by proactively adjusting sub-load connections in response to detected biogas pressure variations before these variations can cause grid instability. The controller anticipates potential volatility effects and pre-adjusts the load configuration to counteract upcoming transients, preventing rather than merely responding to stability issues.
4Quantity of substance
If natural gas wells are stranded due to technical challenges, then biogas production continues, but gas is flared or vented causing energy loss
Solution Approach 1:
The system recovers energy from biogas that would otherwise be discarded through flaring or venting. By implementing a flexible load management system that can operate with variable and heterogeneous fuel sources, the system captures and utilizes the energy contained in stranded gas, converting what would be waste into useful power for data center operations.
Solution Approach 2:
The system is designed to handle multiple types of gas inputs and operational modes, making it universally adaptable to varying biogas conditions. This multi-functionality allows the system to process heterogeneous landfill gas compositions and pressure variations that would challenge dedicated natural gas infrastructure, enabling energy recovery from diverse and variable sources.
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
Enhances the reliability and efficiency of power distribution, reducing methane flaring and improving sustainability by dynamically adjusting to volatile renewable energy sources, ensuring stable power supply to data center sub-loads.
Implementation Method 1
biogas-fueled generators
Implementation Method 2
generator set comprising a first engine and an output terminal coupled to a power distributor
Data Source
AI summary
In one embodiment, the disclosed technology involves a system having a generator set comprising a first engine and an output terminal coupled to a power distributor, a load comprising two or more sub-loads, wherein each of the sub-loads are coupled to the power distributor via one or more respective electrical contactors, and a controller communicably coupled to the electrical contactors and the generator set comprising a processor, and a memory, the memory having computer-readable instructions stored thereon that, when executed by the processor cause operations. The operations may include determining a number of sub-loads available, receiving data representing power generation of the generator set, determining which of the available sub-loads to connect in order to balance the generator set to the load, and controlling the respective electrical contactors of the determined sub-loads so as to provide electricity to the determined sub-loads.