Power Storage System Specification Selection Using Usage Data
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Solution Overview
Problem
The challenge is to provide a power storage system that can be optimized for varying household power usage patterns, as existing systems require DC power storage devices to be adapted for AC load compatibility, necessitating adjustable inverter outputs and battery capacities to effectively utilize midnight power during peak demand hours.
Innovation Solution
An apparatus and method that measure and analyze household power usage patterns to determine optimal inverter outputs and battery capacities, using an interface to input data, calculate annual averages, and adjust inverter outputs based on compensation factors to maximize energy storage and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed capacity power storage device and inverter are used, then the system structure is simple, but it cannot be optimized for varying household power usage patterns
Solution Approach 1:
The patent applies dynamics by making the inverter output and power storage device capacity adjustable rather than fixed. The system dynamically adapts its configuration based on measured household power usage patterns, allowing the same hardware to serve multiple different usage scenarios through reconfiguration.
Solution Approach 2:
The patent changes the parameters of the power storage system by allowing variation in inverter output capacity and power storage device capacity. These parameters are determined based on actual household power usage measurements, enabling optimization for different usage patterns without requiring completely different system designs.
2Productivity
If the inverter output and power storage device capacity are increased to meet peak demand, then power usage during peak hours is improved, but the system cost increases
Solution Approach 1:
The patent applies preliminary action by measuring and analyzing household power usage patterns before finalizing the system configuration. This advance measurement allows the system to be precisely sized for the actual usage needs rather than over-provisioning for potential maximum demand, reducing unnecessary capacity and cost.
Solution Approach 2:
The system performs self-service by automatically determining its own optimal configuration through measurement of actual household power usage. The system configures itself based on real data rather than requiring manual sizing or over-provisioning, ensuring capacity matches actual needs.
3Ease of manufacture
If a standard power storage system is installed without customization, then installation is quick and simple, but it does not optimize cost savings for individual households
Solution Approach 1:
The patent makes the system dynamically configurable after installation by measuring actual power usage patterns. This allows the system to adapt from a standard quick-install configuration to a customized optimal configuration based on real household behavior, maintaining ease of initial installation while achieving reliability in cost optimization.
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
This approach allows for a power storage system tailored to individual household needs, optimizing energy usage and reducing costs by efficiently utilizing stored energy during peak hours, thereby providing a cost-effective solution for each user.
Implementation Method 1
an inverter configured to receive commercial AC power and convert the AC power to DC power
Data Source
AI summary
A power storage system includes a power control unit including an inverter, and a battery for storing electrical energy supplied with commercial AC power by way of the inverter to supply the electrical energy to an electrical load. An apparatus for selecting specifications of a power storage system includes a data input interface unit for input of data obtained by measuring power usage during prescribed hours at a location of power consumption where the power storage system is to be installed, and an operation processing unit for finding annual average power usage during prescribed hours based on the measured data, and determining an output of the inverter based on the average power usage.