Power Distributor Addressing via Resistor Chain Voltage Detection
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Solution Overview
Problem
Existing power distributors face challenges in commissioning due to the inability to uniquely address and communicate with circuit breakers, leading to difficulties in remote maintenance and reparameterization, as all circuit breakers respond simultaneously to queries from the controller.
Innovation Solution
The power distributor incorporates a first controller and connection modules with base resistors, where each circuit breaker is equipped with a second controller and a switch element, allowing for unique address assignment based on electrical voltage drops, enabling selective communication and simplifying commissioning by ensuring switch elements are closed unless a specific address is associated, allowing for independent supply and monitoring of secondary circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If all circuit breakers use a standard address when first energized, then the power distributor can be simply put into operation, but the controller cannot uniquely identify and communicate with individual circuit breakers, making commissioning difficult
Solution Approach 1:
The patent applies preliminary action by pre-configuring base resistors with specific resistance values in each connection module before the circuit breakers are installed. These resistors are electrically connected in series and create unique voltage drops that correspond to specific connection module positions. When the controller queries a circuit breaker, the voltage drop measurement allows the controller to determine which connection module (and thus which circuit breaker) is being addressed, enabling unique identification without complex manual configuration or programming during commissioning.
2Adaptability or versatility
If all circuit breakers respond simultaneously to queries from the controller, then all circuit breakers can be accessed using a standard address, but the controller cannot assign responses to specific circuit breakers, complicating commissioning
Solution Approach 1:
The patent implements feedback by measuring the voltage drop across base resistors that are electrically connected in series between the controller and each connection module. Each connection module's position in the series circuit creates a distinct voltage drop pattern. When the controller sends a query, the responding circuit breaker's connection module produces a characteristic voltage drop that the controller measures and uses to identify which specific circuit breaker responded, thereby maintaining the ability to uniquely address individual circuit breakers even when all are initially accessible via standard address.
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 solution enhances reliability and simplifies commissioning by allowing unique address assignment and independent communication with circuit breakers, ensuring accurate monitoring and control of secondary circuits, thereby improving operational efficiency and reducing complexity.
Implementation Method 1
each of the connection modules has an associated base resistor, which are electrically connected in series. On the basis of an electrical voltage dropping in each case, the address of the circuit breaker in the respective connection module is determined.
Data Source
AI summary
A method for operating a power distributor, having a first controller, and having a plurality of connected connection modules, each having a base resistor, which form a resistor chain connected in series, which chain is supplied by means of a DC source of the first controller and is guided against a reference potential. Each connection module has a supply connector and a bus connector of a common bus system, which is signal-connected to the first controller. The connection modules are equipped with a circuit breaker, each having a second controller for detecting the electrical voltage dropping at the associated base resistor and a switch element operable by the respective second controller, which element is connected between the side of the associated base resistor facing away from the first controller and the reference potential, and which is signal-connected with the associated bus connector and energized by means of the supply connector.