Regulation of active and reactive power of power plants


We implement regulation systems of active and reactive power for power plants in compliance with valid energy law and distribution network codex. This activity usually includes the connection of plant to the supervisory control of the relevant DSO.

We are participating on data gathering and designing the best solution for each plant regulation. PQ regulation is made by our own measures through R-P or R-PQ switchboards that include PIR5 devices, multi-funtional PQ regulators, accumulators and other auxiliary circuits. We are refiting the early plants with required technology (coils, capacitor batteries, switches, switchboards, etc.) in compliance with valid regulations. During commisioning we cooperate with DSO staff.

Rozvaděč R-P  Rozvaděč R-PQ (varianta s PLC)

 

 

Brief overview of requirements for plants connected into E.ON distribution network

 

Power [kW] Requirements Solution
< 250 
  • active power limitation: 0 %, 30 %, 60 % a 100% through Ripple Control receiver
 R-P
250 .. 630
  • active power limitation: 0 %, 30 %, 60 % a 100% through RTU
  • setup for reactive power regulation: 0.95L, 0.97L, 1.00, 0.97C and 0.95C through RTU 
  • analogue measurement of P, Q, U, I at plant point of connection
  • reporting of failure and operating conditions of plant
AXY01 + R-PQ
> 630
  • remote control of main circuit breaker
  • active power limitation: 0 %, 30 %, 60 % a 100% through RTU
  • reactive pwoer regulation: 0.95L, 0.97L, 1.00, 0.97C and 0.95C through RTU
  • analogue measurement of P, Q and U at plant point of connection
  • reporting of failure and operating conditions of plant
  • setup for weather measurements
AXY01 + R-PQ

 

 

Brief overview of requirements for plants connected into CEZ distribution network

 

Power [kW] Requirement Solution
< 30 
  • regulation is not required 
--- 
 30 .. 100 
  • active power limitation: 0 % and 100 % through Ripple Control receiver 
R-P 
 > 100 
  • active power limitation: 0 %, 30 %, 60 % and 100 % through RTU combined with Ripple Control receiver
  • analogue measurement of P, Q, U, I at plant point of connection
  • reporting of failure and operating conditions of plant
  • weather measurements
RY1 + R-PQ 

 

Above mentioned rquirements are listed for reference purpose only and is not complete. Individual requirements are always subjected to connection agreement and can vary from general defined rules.

 

GALLERY