Distributed Photovoltaic Power Generation System Operation Management
Aug 09, 2021
The construction of distribution automation system can carry out remote control monitoring and scheduling of distributed photovoltaic power generation system to ensure that the distributed photovoltaic power generation system can receive and automatically execute the active power and active power change control instructions sent by the dispatching department, so as to meet the operation requirements of the power dispatching department.
In the case of power system accidents or emergencies, the distributed photovoltaic power generation system shall control its output active power rapidly according to the instructions of the power dispatching department. If necessary, the active power of the distributed photovoltaic power generation system can be rapidly and automatically reduced by safety automatic devices or the distributed photovoltaic system can be cut off. At this time, the variation of active power of distributed PHOTOVOLTAIC power generation system may exceed the specified maximum value of active power variation. After the accident is handled and the power system is restored to normal operation, the distributed photovoltaic power generation system shall be connected to the grid and run successively according to the instructions of the power dispatching department.
1) In the case of power system accidents or special operation modes, the active power of the distributed photovoltaic power generation system is required to be reduced to prevent overload of transmission equipment and ensure the stable operation of the power system.
When the frequency of the power system is higher than 50.2Hz, the active power of the distributed photovoltaic power generation system can be reduced according to the instruction of the power system dispatching department. In serious cases, the whole distributed photovoltaic power generation system can be cut off.
2) When the frequency of the power system is higher than 50.2Hz, the active power of the photovoltaic system can be reduced according to the instruction of the power system dispatching department, and the whole distributed photovoltaic power generation system can be cut off in serious cases.
3) In an emergency, if the operation of the distributed photovoltaic power generation system endangers the safety and stability of the power system, the electric dispatching department shall cut off the distributed photovoltaic system.
By establishing an intelligent distribution network dispatching system that integrates dispatching, monitoring and control functions, the efficient management and control of daily operation monitoring, self-healing and power outage management of distribution network can be realized. The intelligent technical support system of intelligent distribution network dispatch integration can be divided into three layers functionally.
Intelligent function module is an advanced module of intelligent distribution network dispatching integration, and also a concrete embodiment of dispatching and control integration. The self-healing of distribution network is based on intelligent monitoring and luneng alarm, which completes the main function of intelligent function module and is the most important content of dispatching integrated system. Distributed photovoltaic power generation system access control is located at the top of intelligent distribution network dispatching integration, which is one of the final socket functions of the integrated system.
