Island Powerline Control With Dump Load for Stable Hybrid Frequency
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Solution Overview
Problem
Renewable energy sources like wind and solar energy are unreliable due to fluctuations, and traditional fossil fuel-based systems face issues with continuous power supply and high CO2 emissions, necessitating a more efficient and reliable energy management system.
Innovation Solution
An energy supply system combining a generator set with an internal combustion engine and an alternator, coupled via clutching means, along with a dump load system that controls power balance, frequency, and voltage, allowing for seamless integration of renewable energy sources and reducing fossil fuel usage through advanced control mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If renewable energy sources (wind/solar) are used to generate electrical power, then environmental sustainability is improved, but power supply reliability deteriorates due to fluctuations in energy generation
Solution Approach 1:
The patent combines renewable energy generators (wind turbines or solar panels) with a generator set (internal combustion engine coupled to an alternator) into a hybrid energy supply system. This merging allows the system to leverage both the environmental benefits of renewable energy and the reliability of conventional generation, eliminating the need to choose between sustainability and power supply stability.
Solution Approach 2:
The control system acts as an intermediary that manages power flow between renewable generators, the generator set, and the electrical load. It monitors generation levels and load demands, automatically switching between or combining power sources to maintain reliable supply while maximizing renewable energy utilization and minimizing fossil fuel consumption.
2Reliability
If fossil fuel-based generator sets are used to ensure continuous power supply, then power supply reliability is improved, but environmental harm increases due to CO2 emissions
Solution Approach 1:
The system dynamically adjusts the operation of the generator set based on real-time conditions. The control system monitors renewable generation levels and electrical load demands, adjusting the generator set's power output accordingly. This dynamic operation allows the generator set to run at optimal loads only when necessary, minimizing fuel consumption and emissions while ensuring continuous reliable power supply.
Solution Approach 2:
The control system changes operational parameters (power output level, on/off state) of the generator set based on system conditions. By adjusting these parameters dynamically, the system minimizes fossil fuel usage and associated emissions while maintaining the reliability benefits of having a controllable power source available to supplement renewable generation.
3Reliability
If the generator set operates continuously to maintain power balance, then power quality stability is improved, but fuel consumption increases
Solution Approach 1:
Instead of operating the generator set at full capacity continuously, the control system applies partial action by adjusting the generator set's power output to match actual system needs. The generator set operates only at the level necessary to balance power fluctuations and meet load demands, avoiding excessive fuel consumption while maintaining power quality stability through selective, targeted operation.
4Productivity
If dump load system is used to absorb excess renewable energy, then renewable energy utilization is improved, but system complexity increases
Solution Approach 1:
The control system serves multiple functions: it manages power flow from renewable generators, controls the generator set operation, monitors power balance, and manages the dump load system. By consolidating these diverse functions into a single multi-functional control system, the patent minimizes the increase in overall system complexity while maximizing renewable energy utilization through coordinated management of all system components.
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 system achieves 100% fuel savings, maintains stable power quality, and efficiently manages energy fluctuations, enabling reliable operation with reduced fossil fuel consumption and increased renewable energy utilization.
Implementation Method 1
the generator set comprising an internal combustion engine coupled to an alternator
Implementation Method 2
an internal combustion engine coupled to an alternator, preferably coupled by means of clutching means for providing electrical energy from the fossil fuel to the main power line
Data Source
AI summary
The invention is directed at a substantially continuous unbroken frequency curve during operation modes from dump load operation, reverse power operation, low load operation and normal operation. Controlling functions are active during all operation modes except the engine controller which is on standby when in an engine stopped mode. This all together gives a dynamic, robust and flexible energy supply, preferably in a range of 50 to 50.3 Hz. Further the clutching is performed substantially without fluctuations. The invention substantially prevents harmonic fluctuations to the grid. The main reactive power compensation is handled by the alternator always connected to the grid and rotating. Further reactive power compensation is done by a standard automatic reactive power compensation system. The invention contributes to stabilization of grid fluctuations with its mechanical inertia from the rotating alternator in the engine stopped mode and also with the engine in the other modes.