Construction Site Energy Station With Bidirectional Load Planning
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Solution Overview
Problem
Existing energy supply solutions for construction sites struggle to efficiently meet the diverse and fluctuating energy demands of differently configured construction machines without oversizing storage means or causing overloading, while also aiming to reduce emissions and noise.
Innovation Solution
An energy supply station with bi-directional communication between the power and energy control device and connected consumers, allowing dynamic adjustment of energy demand planning and distribution based on consumer needs, using diverse storage technologies and flexible power management to optimize energy supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If mobile energy supply stations with large energy storage units are used to meet increased energy demand, then energy supply capacity is improved, but device complexity and cost increase
Solution Approach 1:
The patent implements dynamic energy management where the control device continuously monitors energy demand from construction machines and adjusts energy distribution in real-time. This allows the system to provide high power supply capacity when needed while avoiding the need for permanently oversized storage means, as the system adapts its operation to actual demand conditions
Solution Approach 2:
The energy supply station is designed to serve multiple different construction machines with varying energy requirements through a standardized interface. The control device can dynamically allocate energy to different consumers based on their current needs, making the storage means versatile rather than dedicated to a single machine or fixed demand pattern
2Power
If energy supply is increased to meet peak demands of different construction machines, then energy availability is improved, but risk of overloading increases
Solution Approach 1:
The control device receives continuous feedback from connected construction machines about their energy demand and operational state. Based on this feedback, the control device dynamically adjusts the energy supply to match actual needs, preventing both under-supply and overloading. The system monitors the state of charge of storage means and the power draw of consumers, making real-time decisions to maintain reliable operation within safe limits
Solution Approach 2:
The system is designed to provide more than minimum required energy capacity to handle peak demands, but uses intelligent control to prevent excessive action that would cause overloading. The control device ensures energy supply meets peak demands when necessary while avoiding sustained operation at maximum capacity that would risk overloading the storage means or distribution system
3Productivity
If bi-directional communication and dynamic control are implemented, then energy distribution efficiency is improved, but device complexity increases
Solution Approach 1:
Construction machines equipped with communication devices can autonomously report their energy needs and operational status to the control device. The control device automatically processes this information and adjusts energy distribution without requiring manual intervention or complex centralized control algorithms. This self-reporting mechanism improves distribution efficiency while keeping the control system relatively simple
Data Source
AI summary
A method for supplying a site with energy and an energy supply station for supplying consumers, like construction machines with storage means for storing energy, a consumer connection for charging and/or supplying a corresponding consumer with power, a supply connection for connecting to an energy supply source and feeding electrical energy, and a power and/or energy control device for controlling the feeding and/or storing and/or releasing the electrical energy. Bidirectional communication between the power and/or energy control device and the connected consumers is present, wherein, on the basis of information transmitted by the consumers, energy demand is planned by the power supply station and the application of power to the consumer connections is controlled depending on the planned energy demand, and conversely, on the basis of the determined energy demand and certain characteristics of the energy supply station, control information for controlling the consumers is transmitted to the connected consumers.