GB/T 33599-2017 in English
SUPERSEDEDSpecification of operation and control for photovoltaic power station
- Issued on:2017-05-12
- Implemented on:2017-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$117.00
《GB/T 33599-2017光伏发电站并网运行控制规范》由524（中国电力企业联合会）归口，主管部门为中国电力企业联合会。
Introduction
1. Background of Standard Formulation
With the transformation of global energy structure and the rapid development of renewable energy, photovoltaic power generation, as an important form of clean energy, has been continuously connected to the grid. However, photovoltaic power sources are intermittent and volatile, which poses new challenges to the safe and stable operation of the power grid. Therefore, it is particularly important to formulate the "Grid-connected Operation Control Specification for Photovoltaic Power Stations" to ensure the safe and efficient interaction between photovoltaic power stations and the power grid.
2. Comparison of Standard Frameworks
| Standard Dimensions | Specification Content | Implementation Requirements |
|---|---|---|
| Voltage Level | Applicable to photovoltaic power stations connected to the grid at voltage levels of $35~\mathrm{kV}$ and above, and connected to the public grid at voltage levels of $10~\mathrm{kV}$. | Ensure safe operation and control strategies under different voltage levels. |
| Power forecast | Short-term forecast (0h~72h) and ultra-short-term forecast (15min~4h), the forecast value time resolution is $15~\mathrm{min}$. | The monthly average absolute error must be less than 0.15, and the monthly pass rate must be greater than $80\%$; the monthly average absolute error of the ultra-short-term forecast in the 4th hour must be less than $0.10$, and the monthly pass rate must be greater than $85\%$. |
| Reactive power control | Reactive power regulation is achieved through the reactive compensation device of the photovoltaic power station and the photovoltaic grid-connected inverter. | The control accuracy must meet the requirements of $\mathrm{GB/T29321}$ to ensure the stability of the grid voltage. |
3. Analysis of Technology Evolution
Power Forecasting Technology:From the initial simple model to today's high-precision rolling forecast, combined with meteorological data and statistical analysis, the accuracy and real-time performance of the forecast have been improved.
Reactive Power Regulation Capability:In the early days, it mainly relied on the basic functions of the grid-connected inverter. Now, by configuring a dedicated reactive power compensation device, more sophisticated voltage and reactive power control has been achieved.
4. Implementation Suggestions
Case Study: Application of a Large PV Power Station
The power station has significantly improved the stability of the power grid operation by configuring advanced power forecasting systems and reactive power compensation equipment. At the same time, the optimization of its monitoring system has increased the efficiency of dispatching instruction execution by about $20\%$.
5. Explanation of professional terms
- Photovoltaic cell: A device that uses the photovoltaic effect to directly convert solar radiation energy into electrical energy.
- Low voltage ride-through: The ability of a photovoltaic power station to maintain grid-connected status when the grid voltage drops.
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