HIL testing platform for photovoltaic power plant, and PPC performance testing method

A hardware-in-the-loop (HiL) testing platform for a photovoltaic power plant, comprising:

• a power plant controller (PPC), an inverter controller, and a HiL real-time simulator, wherein
• each of the PPC, the inverter controller, and the HiL real-time simulator is arranged with an upper computer;
• the PPC is configured to communicate with the inverter controller according to a predetermined communication protocol;
• the HiL real-time simulator is connected to the PPC and the inverter controller through a digital input interface and an analog output interface, and is configured to simulate a testing device in the photovoltaic power plant in a digital model form;
• the upper computer of the HiL real-time simulator is configured to perform system modelling, perform real-time environment parameter configuration, manage instruments, and perform monitoring, transmit the real-time environment parameter configuration to the HiL real-time simulator via a communication port, and operation states of models in the HiL real-time simulator are uploaded to the upper computer of the HiL real-time simulator in real time via the communication port;
• the upper computer of the inverter controller is configured to configure control parameters, protection parameters, and operation modes and other parameters for an inverter and monitor an operation state of the inverter;
• and
• the upper computer of the PPC is configured to configure operation parameters, control modes, power scheduling instructions to be transmitted by the PPC, and monitor data sampled by the PPC from the HiL real-time simulator in operating.