Renewable Management System Plant Controller to Manage Grid Codes and Contribute to the Grid Stability
(Room G105, Auditorium Centre, First Floor)
10 Jun 15
11:00 AM
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12:30 PM
Tracks:
Theme: Grid Support with Data & Generators, Theme: Renewable Energy Strategy, Business & Integration
Grid Codes stipulate that Renewables should contribute to power system control . The Power Plant Controller ensures grid compliance at the Point of Common Coupling providing real-time control of the active and reactive power by piloting equipments. The PPC receives instructions from the Grid regarding the control mode and set points. The PPC calculates set points and pilot equipments to adjust power
Compensation system: Hybrid reactive power compensation system (Dynamic compensation by leading or lagging power, Capacitor banks, Shunt reactors); Large storage facilities
The PPC is connected to the SCADA to achieve processing and control speeds required by the control loop. Architecture: Example : Wind farm, PV farm
GC requirements: Operating ranges: voltage/frequency deviation, time constraints; Ride Through ranges: voltage/frequency extreme deviation, time constraints; Control modes and set points
Operating ranges & Ride-Through: GC authority uses profile to specify operating ranges. They use profile to specify Ride-Through ranges. The PPC act during operating deviations. RPP is capable of operating time constraints deviations and contributes to grid stability
Power control requirements: The PPC will pilot the WTG and FACTS to regulate powers
Active power : Frequency : active power / frequency; Power control; Power Limitation
Reactive power : Voltage : reactive power to control voltage; Reactive power control; Power factor control: provide or absorb reactive power
Core control algorithms are placed in the PPC . It manages WTGs and compensation equipment. The PPC knows the status of equipment.
HMI & Interface: The system is able to log historian data, to have synoptic, alarming, logs, web access, settings interface to generate reports
Conclusions: Implementation of a PPC contributes to grid stability. The solution offers a flexible answer to manage Renewables through its PPC, hybrid compensation and Scada