30results about How to "Achieve maximum power output" patented technology

The present invention relates to the technical field of new energy power generation. A centralized-distributed hybrid new energy power generation system and a maximum power point tracking control method. The new energy power generation system consists of a plurality of distributed serially connected new energy power generation modules (100) and a centralized transformer (200). The new energy power generation module (100) consists of power generation equipment (101) and a direct current transformer (102). The maximum power point tracking control method comprises: the distributed power generation modules (100) and the centralized transformer (200) performing maximum power point tracking on the power generation equipment (101) at the same time, the new energy power generation modules (100) and the centralized transformer (200) performing maximum power point tracking on different parts of the output characteristic curve of the power generation module, respectively. The control method can enable the centralized transformer (200) and the power generation module (100) to work stably and reliably without communication present therebetween, the centralized transformer (200) automatically works in the optimal direct current bus voltage point, and the new energy power generation modules (100) at the same time enable each set of power generation equipment (101) to work at respective maximum power point, so that the system automatically implements the maximum power output.

The invention provides an operating efficiency optimizing method of a small hydropower station unit. The method comprises the following steps: obtaining the historical operating data of a small hydropower station to create a efficiency feature curve of each small hydropower unit under different working conditions; acquiring the total generating low rate of the hydropower station, the current working water head, the upper limit and lower limit of power output of each unit and other data to create a target function based on the maximum operating efficiency of the small hydropower station; determining limiting conditions; optimizing and solving the target function by the standard particle swarm optimization; counting the optimal generating flow rate of each unit, the maximum power output of the small hydropower station unit and the maximum operating efficiency of the small hydropower station according to the limiting condition. With the adoption of operating efficiency optimizing method of the small hydropower station unit, the generating flow rate of the small hydropower station units can be reasonably distributed, thus the maximum power output of the small hydropower station can be realized, and the utilization rate of the water resource can be raised; in addition, the theoretical direction can be provided for the optimal operating of the existing small hydropower station units.

The invention discloses a charge control method of a low-power independent photovoltaic generating system, belonging to the technical field of photovoltaic power generation. In the method, the charge efficiency of the independent photovoltaic generating system is improved by fully utilizing the output characteristic of the photovoltaic battery array and the charge characteristic of the lead-acid storage battery, optimum matching of the photovoltaic battery array and the lead-acid storage battery is realized, meanwhile, the acceptable charge current of the lead-acid storage battery is strengthened through self discharge of the lead-acid storage battery and the lead-acid storage battery is ensured to completely absorb the electric energy output by the photovoltaic battery array during charging, thus achieving the aim of improving the charge efficiency of the independent photovoltaic generating system.

The invention discloses an optimizing method and a system device for output power of a partially shielded photovoltaic power generation system. The system device comprises a photovoltaic battery plate, voltage and current acquisition circuits of the photovoltaic battery plate and a DSP (Digital Signal Processor) controller, wherein the controller is embedded with an APSOMPPT maximal power point tracking control algorithm program; the control output end of the controller is used for controlling a BOOST circuit through a PWM (Pulse Width Modulation) drive circuit; and the output of the BOOST circuit is connected with load. A tracking method comprises the steps as follows: fistly, obtaining open-circuit voltage of the photovoltaic battery plate; secondly, determining maximal output voltage of the photovoltaic battery plate according to the open-circuit voltage; thirdly, initializing a system and starting a timer; fourthly, when the set time is up, running the APSOMPPT maximal power point tracking control algorithm subprogram to iterate for multiple times; and lastly, taking global optimum of all the particles in the iterating process as voltage of a photovoltaic array for acting on the photovoltaic array. Therefore, the power optimization output of the photovoltaic power generation system is realized.

A wind power park and a method for operating a wind power park, the wind power park has a power park master (3) and a plurality of wind power devices (1). The master control (3) of the power generation park predetermines the power output of the wind power generation equipment (1). The wind park can be operated in a normal operating mode and in a power-reduced throttling mode. The park master ( 3 ) outputs a throttling signal to the wind power plants ( 1 ) for this purpose. According to the invention an individual power reduction P is determined for each participating wind power plant by 额定，i : For each wind power plant determine the available power P 可用（i） and reduce this available power by a certain reduction ΔP i ; through the optimized condition T with the same rise time 恢复，优化 = T 恢复，i The optimization method for wind power equipment to determine the reduction ΔP i ; and repeating until the optimization method achieves a predeterminable breakout criterion. A dynamic high-quality regulation behavior of the wind park is achieved not only at power reduction but also at power rise. By taking into account the individual power boost capabilities of the individual wind power plants, the wind power plants simultaneously achieve their respective maximum power outputs. Concomitant negative situations such as overshoot or slow asymptotic approximation are effectively avoided.