TEPCO has accomplished stable and reliable power system to achieve high quality
power supply. To realize the well-balance performance, TEPCO improves protection
performance, develops various protection systems and uses appropriate controller
etc.
Transmission Network
Electric Energy Storage
Planning
Improvement in System Performance
Distribution Systems
Protection Scheme (System Operation)
Development of Special Protection System
Power flow, transient stability, voltage stability and system frequency in
the future bulk power system is studied in regards to severe faults in order
to estimate the needs for a special protection system, which can prevent a
disturbance area from expanding. If a cascading fault is expected, the application
of a Special Protection System (hereinafter, SPS) is considered and requirements
for the SPS are found out based on a great number of data . Functional specifications
are also determined so as to fulfill the requirements. TEPCO has developed
and operated several types of SPSs.
[Previous project]
Project: |
Preparation of Technical Guidelines and Review of TNB Protection and Control
Technical Specifications |
Client: |
TNB (Malaysia) |
Period: |
January 2003 - August 2004 |
Outline:
(COP) |
In order to standardize and optimize the design work of TNB’s protection
system, the Technical Guidelines for protection system, which describes basic
design philosophy as well as is placed between Code of Practice and Technical
Specification, was established. The Technical Guidelines referred to the
COP as well as TEPCO practice and experience on protection system. The existing
Protection and Control Technical Specification was comprehensively reviewed
in reference to the Technical Guideline. |