Test Specification 3.01
Cloud-based real-time supervision and voltage regulation ancillary services for PV systems
Test Specification Definition
| ID | 3.01 |
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| Reference to Test Case | TC3 |
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| Title of Test | Cloud-based real-time supervision and voltage regulation ancillary services for PV systems |
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| Test Rationale | Design and demonstration of a grid-edge PV PPC that processes real-time signals from a cloud-based system for centralized supervision and localized voltage regulation at the PCC |
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| Specific Test System
(graphical) | 
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| Target measures | - Observability of PV system and smart meter data
- Voltage regulation at PCC
- Centralized active power limitation of smart inverters
- PV system active and reactive power control
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| Input and output parameters | Input parameters: - Smart meter voltage at PCC
- PV inverter Volt-Watt and Volt-VAR control characteristic curves
Output parameters: - Immediate smart inverter connection/disconnection signal
- Smart meter voltage, frequency, apparent, active and reactive power
- PV system active and reactive power
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| Test Design | - Variation of PV system generated power
- Implementation of different control methods
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| Initial system state | - Voltage close to 1 pu
- Unregulated PV system operating at maximum power point (MPP) mode
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| Evolution of system state and test signals | - Measurement of increase/decrease of voltage at PCC
- Increase/decrease of active and reactive power with respect to voltage magnitude
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| Other parameters | n/a |
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| Temporal resolution | 1 second |
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| Source of uncertainty | - Uncertainty of smart meter voltage measurements (0.5%)
- Uncertainty of smart inverter power measurements (1%)
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| Suspension criteria / Stopping criteria | - Abnormal over or under voltage conditions
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