Heat Source Output Control for Responsive Demand Suppression
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Solution Overview
Problem
Heat source systems with multiple units of varying capacities and output characteristics face reduced responsiveness in demand control due to differing energy consumption suppression rates.
Innovation Solution
A demand control device with a receiving section, energy suppression amount value calculating section, heat source output determining section, and driving section that calculates and applies individual output determinations to each heat source unit based on energy suppression amounts, load, and coefficient of performance information to optimize energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If demand control is performed by suppressing energy consumption simultaneously by all heat source units at a given proportion, then energy consumption is reduced, but responsiveness is reduced when heat source units have different capacities and output characteristics
Solution Approach 1:
The patent divides the heat source units into different groups based on their output characteristics and capacities. Instead of applying uniform demand control to all units, each unit is controlled individually according to its specific characteristics, enabling both energy suppression and maintained responsiveness.
Solution Approach 2:
The patent applies different control strategies to different heat source units based on their local characteristics (capacity, output characteristics). Each unit receives tailored demand control instructions rather than a blanket proportionate reduction, optimizing both energy savings and responsiveness for each unit type.
2Adaptability or versatility
If heat source units with different capacities and output characteristics are used, then system flexibility is improved, but responsiveness in demand control varies across units
Solution Approach 1:
The patent implements dynamic demand control that adapts to the specific characteristics of each heat source unit. The control system continuously monitors and adjusts the demand control parameters based on unit capacity and output characteristics, maintaining optimal responsiveness across diverse unit types.
Solution Approach 2:
The patent changes the control parameters (demand control proportions, timing, and magnitude) based on the specific capacity and output characteristics of each heat source unit. This parameter adaptation allows the system to maintain responsiveness while accommodating unit diversity.
Data Source
AI summary
A demand control device performs demand control in which energy consumption of heat source units is suppressed with regard to a heat source system having a plurality of the heat source units with capacities and/or output characteristics that are different. The demand control device includes a receiving section, a collecting section, an energy suppression amount value calculating section, a heat source output determining section, and a driving section. The receiving section receives a demand signal which requests starting of the demand control. The energy suppression amount value calculating section calculates an energy suppression amount value relating to an energy amount suppressed during the demand control. The heat source output determining section determines an output individually with regard to each of the plurality of heat source units based on the energy suppression amount value. The driving section drives each of the plurality of heat source units using the output.