4 results about "Power load" patented technology

The invention discloses a power grid optimization partitioning method for new energy consumption analysis. The method comprises the following steps: S1, determining a unit sub-region power grid Ui; S2, collecting and making statistics of a new energy historical generated output data sequence and eliminating abnormal data Pre, i(t); S3, calculating accumulated generating capacity Ere, i of all newenergy power stations; S4, collecting historical power load data exceeding Pload, i(t) and removing the abnormal data; S5, calculating accumulated power consumption Eload, i of the power load; S6, calculating matched power generation power Pmatchre, i (t) and matched power utilization power Pmatchload, i(t) at each moment; S7, calculating the total match power generation electric quantity Ematchre,i and the total match power utilization quantity Ematchl, i; S8, calculating a time sequence match degree Kmatch, i; and S9, classifying source-load match degree coefficients Kmatch, i of all unit sub-regions. The optimization method, through long-time statistical data analysis, adopts a key characteristic index of the time sequence match degree to measure the match degree of the generated outputand the power load of the photovoltaic power station on the time sequence, and provides a basic support for formulating planning schemes of site selection and constant volume and the like of distributed photovoltaics.

The invention discloses a power distribution cabinet device with a power-on indicating function for distributing power from a power supply to a power load. The power distribution cabinet device comprises a fixed cabinet body (9) for installing power distribution devices and a pivot door (99) pivoted to the fixed cabinet body (9) via rotating fit of a pivot shaft (91) and a bearing piece (92) fixedly arranged on the fixed cabinet body (9), power utilization devices are installed on the pivot door (99) and fixedly connected with the pivot shaft (91), and a cylindrical cap (93) located on the bearing piece (92) and positioned axially by means of the bearing piece (92) is fixedly arranged at the upper end of the pivot shaft (91).

The invention provides a KA type single-live-wire wall intelligent switch, which comprises a KA main switch, a high-voltage isolation power supply, a power adaptive circuit, a direct-current timing charging control circuit and an intelligent module input and output circuit, wherein the KA main switch connects or disconnects electric connection between a live wire and a power supply load through series connection of an electricity-taking power MOS tube and a relay contact, the high-voltage isolation power supply provides direct current for a control circuit when the live wire is disconnected from the power supply load, the direct-current timing charging control circuit performs direct-current timing charging when the live wire and the power supply load are conducted, the power self-adaptive circuit performs full-bridge half-wave rectification conversion and upper limit voltage control by controlling the electricity-taking power MOS tube, and the intelligent module input and output circuit remotely controls the relay switch. According to the invention, the technical barriers of flickering and spanning fire phenomena of a low-power power supply load, incapability of network distribution and incapability of driving a common relay are solved, the heating value of a high-power load power taking MOS tube is reduced, and the phenomenon of lighting on a side road during air switch is also avoided.

The invention discloses a method for calculating settlement deviation generated by clock drift of an electric meter. The method comprises the following steps: acquiring power load sequence data and electricity price sequence data; calculating settlement electric charge without clock drift by utilizing the power load sequence data and the electricity price sequence data; acquiring drifting time from the intelligent electric meter; calculating settlement electric charge after clock drifting by utilizing the drifting time; and solving a deviation value between the settlement electric charge afterclock drift and the settlement electric charge without clock drift. According to thealculation method, device and equipment for the settlement deviation generated by the clock drift of the electric meter, the settlement deviation generated after drifting of the electric meter clock can be calculated.