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Hello,
I would like to know how is the normal control architecture of a generation plant.
I am used to see DCS which includes all the control systems and which also communicates with vendor equipments for signals exchange.
Since I am working for a Combined Cycle project, I have seen some power control systems: PMS, AGC, AVR, Load Shedding...
I would like to know their functions and their control level, if they are in the DCS or independent and communicated.
- PMS (Power management system)
- AGC (Automatic governor controller)
- Load Shedding
- AVR (Excitation control of the turbine)
- Pipe Leak system
- ESD (Emergency shut-down system)
For example, the control architecture will be like this:<pre>
-----------------------------------
| |
| DCS--> PMS + Load Shedding +ESD |
| |
-----------------------------------
| | |
| | |
AGC AVR Pipe Leak</pre>
In this case, the DCS has integrated in its logic programming the PMS, Load shedding screens and ESD. The AVR is communicated with DCS and the AGC will be something different (I do not know if it should be something programmed in DCS). Pipe leak will be some vendor equipment communicated with DCS.
Could the ESD be inside of the DCS, or must be something independent due to the redundancy? What should include? Is it a new PLC or only programmed?
What kind of functions has the PMS? What does normally controls? How is it interconnected with AGC?
What is AGC? Is it some logic programmed in DCS or something different? Is its function to receive the generation set points from the grid and send them to the TCS (turbine control system)?
To be more clear, I want to know what could come with DCS (programmed inside of it) and what must be from another supplier and then communicated with DCS.
Also, I would like to know how PMS and AGC normally work, what do they do and what kind of sub-systems they have inside.
Thank you very much for helping, I apologize if my explanation is not very clear.
Best regards,
Daniel
I would like to know how is the normal control architecture of a generation plant.
I am used to see DCS which includes all the control systems and which also communicates with vendor equipments for signals exchange.
Since I am working for a Combined Cycle project, I have seen some power control systems: PMS, AGC, AVR, Load Shedding...
I would like to know their functions and their control level, if they are in the DCS or independent and communicated.
- PMS (Power management system)
- AGC (Automatic governor controller)
- Load Shedding
- AVR (Excitation control of the turbine)
- Pipe Leak system
- ESD (Emergency shut-down system)
For example, the control architecture will be like this:<pre>
-----------------------------------
| |
| DCS--> PMS + Load Shedding +ESD |
| |
-----------------------------------
| | |
| | |
AGC AVR Pipe Leak</pre>
In this case, the DCS has integrated in its logic programming the PMS, Load shedding screens and ESD. The AVR is communicated with DCS and the AGC will be something different (I do not know if it should be something programmed in DCS). Pipe leak will be some vendor equipment communicated with DCS.
Could the ESD be inside of the DCS, or must be something independent due to the redundancy? What should include? Is it a new PLC or only programmed?
What kind of functions has the PMS? What does normally controls? How is it interconnected with AGC?
What is AGC? Is it some logic programmed in DCS or something different? Is its function to receive the generation set points from the grid and send them to the TCS (turbine control system)?
To be more clear, I want to know what could come with DCS (programmed inside of it) and what must be from another supplier and then communicated with DCS.
Also, I would like to know how PMS and AGC normally work, what do they do and what kind of sub-systems they have inside.
Thank you very much for helping, I apologize if my explanation is not very clear.
Best regards,
Daniel