Brief introduction of relay protection
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1402
2017-12-25
The trend of deregulation in the power industry and the proliferation of digital electronic devices have deeply affected the operation of power utilities.
Engineering departments, in particular, have to deal with the growing complexity of existing applications and the emergence of new applications.
In this environment, many new challenges have been created, protecting systems engineers.
The use of new business models, the deployment of microprocessors, the proliferation of smart devices, and more emphasis on power quality and the shortage of talent are the main ones.
Therefore, more and more engineers must rely on advanced engineering tools to carry out their daily tasks.
background
In the past few years, the research and development of digital simulator relay tests have led to the development of a variety of configurations: (custom) closed-loop simulator
(1) and the advanced low-cost relay test platform, kezunovich gallianovic
(2) the main features of these tools are hardware flexibility, automation tasks, user-friendly graphical user interfaces, and simple integration with other applications.
(3) after the success of the offline test, the system was installed in the energy enterprise transmission system, which has been working on substations since 1995.
Subsequently, a new generation of systems is developed to handle multiple digital fault recording devices and convenient data archiving.
(4) modeling and simulation of the protection system and its components is the latest tool to join our protection engineer suite.
It allows protection engineers to configure them in a very simple and efficient manner
The power system model relay system component used by the application.
(5) pre-define the component library, which can be enhanced by adding custom developed components to the user.
This makes the complex power system relay protection scheme, including multi-terminal and multi-relay application modeling and simulation.
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The environment is very flexible and connects to external software products.
