Heat Storage Power Generation With Temperature Feedback Control

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Solution Overview

Problem

Existing heat storage power generation systems fail to effectively control the operation of power generators based on the state of the heat storage, leading to inefficient energy utilization and power output.

Innovation Solution

A heat storage power generation system that includes temperature meters to measure the internal temperature of the heat storage, a power generation plan processor to develop optimized power generation plans, and a power generation controller to adjust operations based on these measurements, ensuring efficient energy use and power output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the heat storage power generation system operates without real-time temperature monitoring and control, then the system structure is simpler, but the energy utilization efficiency and power output are reduced

Engineering Contradiction:

Improvepower outputVSAvoidsystem structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent implements feedback control by measuring the internal temperature of the heat storage with temperature meters and using this information to control the power generation operation. The power generation controller adjusts the power generator operation based on real-time temperature data, creating a closed-loop control system that optimizes power output while maintaining system reliability.

Inventive Principle:

Principle #23Feedback

2Use of energy by moving object

If the power generator operation is not adjusted based on heat storage state, then the control system is simpler, but the energy utilization efficiency is reduced

Engineering Contradiction:

Improveenergy utilization efficiencyVSAvoidcontrol system

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The system uses temperature meters to monitor the internal temperature of the heat storage and feeds this information back to the power generation controller. The controller then adjusts the power generator operation accordingly, creating an efficient closed-loop control system that maximizes energy utilization while maintaining manageable complexity through automated control.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent replaces manual control mechanisms with automated control systems that use temperature sensors and controllers to adjust power generation operation. This substitution of mechanical/manual control with automated sensor-based control improves energy utilization efficiency while keeping the control system complexity manageable through electronic automation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If real-time temperature measurement and control are implemented, then the power generation efficiency is maximized, but the system complexity increases

Engineering Contradiction:

Improvepower generation efficiencyVSAvoidmeasurement and control system

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system enables self-service operation where the power generation controller automatically adjusts the power generator based on temperature feedback from the heat storage, without requiring external manual intervention. This automation maximizes power generation efficiency while managing system complexity through self-regulating control mechanisms.

Inventive Principle:

Principle #25Self-service

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 enables precise control of power generation, maximizing energy utilization and power output by considering the state of the heat storage, thereby improving efficiency and performance.

Implementation Method 1

the heat storage material in the heat storage is heated by some means, for example, the heat transfer fluid at high temperature. Then, as the temperature of the heat storage material increases, energy is stored in the heat storage

Methodology Applied

Scientific EffectThermal energy storage: Thermal Energy Storage

Implementation Method 2

the heat storage material in the heat storage releases heat to some means, for example, the heat transfer fluid at low temperature. The heat transfer fluid at low temperature is heated by receiving thermal energy from the heat storage material

Methodology Applied

Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 3

the power generator generates electric power by using a steam turbine cycle when the heat storage is operated in a heat releasing mode

Methodology Applied

Scientific EffectSteam turbine cycle: Rankine Cycle

Data Source

PatentUS20250314431A1Heat storage power generation system and power generation control system

Publication Date: 2025.10.09 KK TOSHIBA

AI summary

In one embodiment, a heat storage power generation system includes a heater configured to heat first heat transfer fluid. The system further includes a heat storage including a heat storage material heated by the first heat transfer fluid, and configured to heat second heat transfer fluid with heat stored in the heat storage material. The system further includes a power generator configured to generate electric power by using the second heat transfer fluid. The system further includes one or more temperature meters configured to measure internal temperature of the heat storage. The system further includes a power generation controller configured to control power generation performed by the power generator, based on the internal temperature measured by the temperature meters.