Heat storage system control device, heat storage system, heat storage system control method , control program, and recording medium
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heat storage system management devices struggle to adjust power supply and demand effectively, as they cannot account for overall power supply and demand information across all consumers, leading to potential mismatches between supply and demand adjustments and actual power supply and demand conditions.
Innovation Solution
A heat storage system control device that receives power supply and demand information from a power control instruction device, determines an operation schedule for the heat storage device based on this information, and transmits the schedule to the power control instruction device for implementation, thereby adjusting the operation of the heat storage device to match overall power supply and demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If water heaters are operated intensively at night to store hot water, then hot water storage is achieved, but peak power consumption increases causing tight power supply-demand situations
Solution Approach 1:
The system performs preliminary actions by pre-heating water during off-peak hours and pre-cooling refrigerators/freezers during low-demand periods. The control device schedules operations in advance based on predicted power supply-demand conditions, allowing hot water to be stored before peak demand periods and cold storage to be prepared before high power consumption periods, thereby avoiding intensive operation during peak times.
Solution Approach 2:
The system dynamically adjusts operation schedules based on real-time power supply-demand information and predictive algorithms. The control device modifies heating and cooling operations flexibly according to changing power conditions, transitioning from static fixed schedules to dynamic adaptive scheduling that responds to grid conditions while maintaining hot water availability and cold storage requirements.
2Power
If consumers are divided into groups with shifted operation times, then peak power consumption is reduced, but the peak cannot be controlled appropriately when water heater operation varies daily
Solution Approach 1:
The control device implements feedback mechanisms by continuously monitoring actual water heater operations, hot water tank levels, and power supply-demand conditions. Based on this feedback, the system adjusts operation schedules dynamically to ensure hot water availability is maintained while managing peak power consumption. The feedback loop allows the system to adapt when operations vary daily, correcting deviations from planned schedules.
Solution Approach 2:
The system enables self-service by allowing the control device to autonomously manage and adjust operation schedules without requiring manual intervention. The device automatically monitors hot water tank levels, power conditions, and operation histories, making real-time decisions to maintain hot water availability while controlling peak demand, thereby serving itself to resolve the contradiction between peak reduction and reliability.
3Power
If a management device determines operation timing based on operation records, then peak reduction possibility increases, but supply-demand adjustment does not match overall power supply and demand
Solution Approach 1:
The control device performs multiple functions: it manages individual consumer water heater operations, receives and processes power supply-demand information from the power system, predicts future power conditions, and coordinates operations across multiple consumers. By integrating these diverse functions, the device can adjust operations based on both local operation patterns and overall power supply-demand conditions, eliminating the information gap between individual management and system-wide coordination.
Solution Approach 2:
The control device acts as an intermediary between individual water heaters and the overall power system. It receives power supply-demand information from the power system, processes this information along with local operation data, and translates it into coordinated operation schedules for water heaters. This intermediary role enables the system to align individual operations with overall power supply-demand conditions while maintaining local optimization.
4Use of energy by moving object
If heat storage devices operate during low electricity rate periods, then electricity cost is reduced, but power supply-demand balance may be disrupted
Solution Approach 1:
The system changes operational parameters dynamically based on power rate structures and supply-demand conditions. Instead of operating heat storage devices solely during low-rate periods, the control device adjusts operation timing, duration, and intensity according to real-time power conditions. This parameter adjustment allows the system to maintain cost-effectiveness while preventing disruption to power supply-demand balance by coordinating operations with overall system needs.
Data Source
AI summary
A heat storage system control device includes a receiving unit configured to acquire power supply and demand information from a power control instruction device, an operation schedule determination unit configured to determine an operation schedule of a heat storage device based on the power supply and demand information, a transmission unit configured to transmit the operation schedule determined by the operation schedule determination unit to the power control instruction device, and a heat storage device control unit configured to control an operation of the heat storage device based on the operation schedule determined by the operation schedule determination unit.