Abstract: A text classification method includes: obtaining a target text and an associated text corresponding to the target text; performing feature extraction on the target text and the associated text to obtain feature information, the feature information including one or more features; processing the feature information by using an attention mechanism to obtain one or more attention weights respectively corresponding to the one or more features, an attention weight indicating importance of the corresponding feature for the target text and the associated text; and obtaining a class detection result and result interpretation information corresponding to the target text based on the feature information and the one or more attention weights, the class detection result comprising a class distribution probability corresponding to the target text, and the result interpretation information describing impact of the one or more features on the class detection result.

Abstract: Provided are a photovoltaic power generation system and a fault protection method and device thereof, a combiner box, and an inverter, which relate to the technical field of photovoltaic power generation. The system includes a power conversion unit, a multi-pole linked switch, and N photovoltaic strings. The method includes: controlling, in response to a fault in the photovoltaic power generation system, a switch tube in the power conversion unit to short-circuit the positive input terminal and the negative input terminal of the power conversion unit, and controlling the multi-pole linked switch to be disconnected, such that at most three of the N photovoltaic strings are connected in parallel.

Abstract: A method and a device for primary frequency modulation in new energy power generation are provided. An inverter performs a first power adjustment according to a p-f droop curve before receiving a power adjustment instruction sent by the power station controller, and performs a second power adjustment in response to the power adjustment instruction. Since the inverter performs the first power adjustment before responding to the power adjustment instruction sent by the power station controller, the response of the primary frequency modulation is speeded up, so that rapid control for the new energy generation power is achieved, thereby ensuring stable operation of a power grid for new energy power generation.

Abstract: A text classification method includes: obtaining a target text and an associated text corresponding to the target text; performing feature extraction on the target text and the associated text to obtain feature information, the feature information including one or more features; processing the feature information by using an attention mechanism to obtain one or more attention weights respectively corresponding to the one or more features, an attention weight indicating importance of the corresponding feature for the target text and the associated text; and obtaining a class detection result and result interpretation information corresponding to the target text based on the feature information and the one or more attention weights, the class detection result comprising a class distribution probability corresponding to the target text, and the result interpretation information describing impact of the one or more features on the class detection result.

Abstract: A method and a device for primary frequency modulation in new energy power generation are provided. An inverter performs a first power adjustment according to a p-f droop curve before receiving a power adjustment instruction sent by the power station controller, and performs a second power adjustment in response to the power adjustment instruction. Since the inverter performs the first power adjustment before responding to the power adjustment instruction sent by the power station controller, the response of the primary frequency modulation is speeded up, so that rapid control for the new energy generation power is achieved, thereby ensuring stable operation of a power grid for new energy power generation.

Abstract: A photovoltaic inverter system is provided, in which multiple independent inverter units are arranged in a housing, and each of the independent inverter units has independent MPPT function, such that the PV inverter system have multiple MPPT control. In the complex scene such as hills, a maximum power generation of each photovoltaic string can be realized to ensure system energy yield in a case of partial shading or inconsistent orientation. Since independent inverter units are all arranged in the housing, it is convenient for the installation, operation and maintenance.