Building Power Setpoint Control for Grid-Responsive Operation
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Solution Overview
Problem
Building control systems fail to effectively manage electrical power consumption in relation to grid operation parameters, leading to inefficiencies and potential instability in the power grid.
Innovation Solution
A building control system that communicates with individual operation controls of building devices to adjust setpoint values for parameters like temperature, illumination, and energy storage, based on grid operation parameters, allowing for real-time modification of electrical supply power to align with grid conditions, thereby stabilizing the power grid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If building operation devices operate independently with individual operation controls, then each device can precisely control its building operation parameters, but the overall electrical power consumption cannot be coordinated with grid operation parameters
Solution Approach 1:
The patent merges the independent operation controls of multiple building operation devices into a unified control system. The system control receives grid operation parameters and coordinates the operation controls of heating, cooling, ventilation, and illumination devices to collectively respond to grid conditions, enabling centralized power management while preserving individual device control capabilities
Solution Approach 2:
The system control serves multiple functions: it monitors grid operation parameters, determines power requirements of building operation devices, calculates optimal operation modes, and transmits coordinated control signals to multiple operation controls. This multi-functional approach enables the system to adapt to various grid conditions while maintaining precise control over different building operations
2Reliability
If building control systems do not consider grid operation parameters, then building operations can maintain optimal performance independently, but power grid stability deteriorates due to uncoordinated power consumption
Solution Approach 1:
The system implements a feedback mechanism where grid operation parameters are continuously monitored and fed back to the system control. The system control uses this feedback to determine the current power requirements of building operation devices and calculates coordinated operation modes that respond to grid conditions, creating a closed-loop control system that maintains both building performance and grid stability
Solution Approach 2:
The system performs preliminary calculations to determine power requirements and optimal operation modes before implementing control adjustments. By pre-calculating the coordination between building operation devices based on grid parameters, the system can proactively adjust power consumption patterns to prevent grid instability while maintaining building operation reliability
3Adaptability or versatility
If the system coordinates multiple building operation devices based on grid parameters, then overall power consumption aligns with grid conditions, but the system complexity increases
Solution Approach 1:
The control system is segmented into distinct functional modules: a system control unit that receives grid parameters and determines power requirements, a calculation unit that computes optimal operation modes, and transmission units that send coordinated signals to individual operation controls. This segmentation allows the complex coordination task to be divided into manageable functions, reducing overall system complexity while maintaining coordination capability
Data Source
AI summary
A building control system for at least one building. The building control system has a system controller and at least one building operation device with a respective operation controller. Electrical supply power is fed from a supply grid to the at least one building operation device. The system controller is set up to temporarily adapt a setpoint value for each building operation parameter in order to adapt the electrical supply power to the state of the supply grid and to stabilize the supply grid. The direct specification of a temporarily modified setpoint value for a building operation parameter is a simple and efficient option of integrating the subordinate open-loop or closed-loop controllers of the building operation devices into the building control system. This measure also makes simple retrofitting possible.