The invention discloses a dynamic economic dispatching method for a power system considering photovoltaic power generation. The method comprises the following steps: historical meteorological data are acquired for statistical analysis, and solar irradiance and temperature prediction curves in the next 24 hours are obtained; statistics on historical load data is carried out, and a power system load curve in the next 24 hours is predicted and obtained; a photovoltaic power station output model is built, and a photovoltaic output prediction curve in the next 24 hours is obtained; according to a photovoltaic output probability distribution model, the photovoltaic output probability distribution in the next 24 hours and photovoltaic output values in different scenes are obtained; a dynamic economic dispatching optimization model for the power system with the photovoltaic power station is built, and a risk reserve curve is obtained; the risk reserve capacity is calculated, and a risk capacity curve is obtained; a basic UC optimization problem is solved, and a unit commitment scheme is corrected; and a dispatching scheme with the minimum target function found out during an operating cost expected value process is solved as the optimal economic dispatching scheme. The operation risk controllability and the operation economy of the power system are ensured.

Dynamic economic dispatching method for power system considering photovoltaic power generation

The invention discloses a multipath light splitting adapter for testing optical power for an intelligent transformer station. The multipath light splitting adapter includes a housing, a light splitting adapter circuit board, an input interface, an output interface, input fibers and an output fiber. The light splitting adapter circuit board is arranged in the housing. The housing is equipped with a plurality of wire inlet holes. One end of each input fiber passes through one wire inlet hole to be electrically connected to the light splitting adapter circuit board, and the other end of each input fiber is electrically connected to the input interface. One end of the output fiber passes through one wire inlet hole to be electrically connected to the light splitting adapter circuit board, and the other end of the output fiber is electrically connected to the output interface. The input interface includes multiple input interfaces with different types. The multiple input interfaces with different types are electrically connected to the light splitting adapter circuit board through the input fibers. The work efficiency of optical power testing is increased, and the accuracy of comparison and analysis of test results in the same intelligent transformer station is improved.

Multipath light splitting adapter for testing optical power for intelligent transformer station

The invention relates to the field of the current generation scheduling plan decision technology, particularly to an optimized reserve capacity distribution method in power system scheduling containing wind power generation, thermal power generation, hydro power generation, photovoltaic power generation, and gas power generation. With the method, a problem that a quantitative analysis on an adjustment reserve demand after large-scale wind-power grid connection and an optimized analysis on how to distribute adjustment reserve demands between AGC sets can not be realized by using the existing power generation scheduling plan decision technology can be solved. The method comprises the following steps: (1), calculating an adjustment reserve demand after wind-power grid connection; and (2), on the basis of the adjustment reserve demand after wind-power grid connection, constructing an adjustment reserve demand optimization distribution model. According to the invention, the method is suitable for power system generating scheduling of several kinds of energy containing wind power generation, thermal power generation, hydro power generation, photovoltaic power generation, and gas power generation.

Optimized reserve capacity distribution method in power system scheduling containing wind power generation, thermal power generation, hydro power generation, photovoltaic power generation, and gas power generation

The invention relates to a method for improving wind power accommodation capability, wherein the method comprises the steps of pre-establishing a second-day wind power output distribution model according to historical data; acquiring an operation parameter of a wind power system, and establishing an operation parameter restraining condition according to the second-day wind power output distribution model; acquiring a pre-established target function in which the wind power system risk is considered, restraining the target function by means of a constraint condition, and obtaining a thermal power unit output current plan, a wind power field operation output current plan, a captive power plant operation output current plan, a captive power plant output adjustment current plan and a translational load current plan in which the system risk caused by wind power is considered; and correspondingly transmitting the optimized current plan to the thermal power plant, the wind power plant, the captive power plant which participates in requirement response and an enterprise with the translational load. The invention further relates to a device for improving wind power accommodation capability. The method and the device can improve wind power accommodation capability.

Method and device for improving wind power accommodation capability

The invention discloses a communication method and system of an intelligent device. The method comprises that: the output end of a first intelligent device sends an optical signal to an optical terminal, wherein the optical terminal is arranged between the output end of the first intelligent device and the input end of a second intelligent device; the optical fiber adapter of the optical terminal forwards the optical signal to the input end of the second intelligent device, wherein the interface type of the input end of the optical fiber adapter and the interface type of the input end of the first intelligent device are the same, and the interface type of the output end of the optical fiber adapter and the interface type of the input end of the second intelligent device are the same. According to the invention, the technical problem in the prior art of low communication efficiency among the intelligent devices for that the interface types of the intelligent devices in an intelligent substation are frequently different when the devices leave the factory.

Communication method and system of intelligent device

The invention discloses a coordinating economic dispatching method for a power system containing large-scale wind power based on risk control, comprising the following steps: collecting historical weather data and historical load curve data, and predicting the weather and wind speed in the remaining period of time of next 24 hours; predicting the load and wind power of the previous day, and obtaining a wind power output curve, a load curve and a net load curve in the remaining period of time of next 24 hours; modeling the net load, and obtaining the standard deviation of net load prediction error and the net load values in different scenarios; giving the risk degree, calculating the risk reserve in the remaining period of time of next 24 hours, and obtaining a risk reserve curve; calculating the risk reserve capacity, and obtaining a risk capacity curve; correcting a unit combination plan; and calculating the expected value of operation cost of the power system in the remaining period of time of next day. A strategy based on coordination between previous day economic dispatching and current day rolling economic dispatching is introduced, which not only can ensure that the operation risk of the power system is controllable, but also can ensure the operation economy of the power system.

Coordinating economic dispatching method for power system containing large-scale wind power based on risk control

The utility model discloses an intelligent substation light multichannel beam split adapter for power testing, it includes casing, beam split repeater circuit board, input interface, output interface, input optic fibre and output optical fibre, beam split repeater circuit board sets up in the casing, be provided with a plurality of entrance holes on the casing, the one end of input optic fibre is passed entrance hole and beam split repeater circuit board electricity and is connected, the other end of input optic fibre and input electrical connection interface, the one end of output optical fibre is passed the entrance hole and is connected the other end and the output electrical connection interface of output optical fibre with beam split repeater circuit board electricity, the input interface includes a plurality of input interfaces that have different kinds of interfaces, and a plurality of input interfaces that have different kinds of interfaces are connected through input optic fibre and beam split repeater circuit board electricity respectively. The utility model discloses not only improve smooth power testing's work efficiency, improved same intelligent substation's the accuracy nature of test result in the aspect of contrastive analysis moreover.

Intelligent substation light multichannel beam split adapter for power testing

The invention discloses an automatic cleaning device for a filter screen of an exhaust fan of a switch gear room of a substation. The automatic cleaning device comprises a slide rail, a roller and a cleaning pool, wherein the cleaning pool is arranged on the ground right below the exhaust fan; the interior of the cleaning pool is divided into a cleaning zone and a storage zone; the storage zone fits a wall body; a nozzle layer is arranged above the cleaning zone; a plurality of nozzles are arranged inside the nozzle layer; a water inlet layer is arranged on the nozzle layer; the water inlet layer communicates with the nozzle layer through an opening; a water inlet is formed in the outer wall of the water inlet layer; the slide rail comprises two parallel grooves; the upper end of the slide rail is positioned on the two sides of the exhaust fan; the lower end of the slide rail downwards extends to the storage zone along the wall body; a rotating shaft is arranged inside the roller; roller brackets are arranged at the two ends of the rotating shaft; the tail ends of the roller brackets are in clamp fit with the grooves of the slide rail through the roller; motors and cables are arranged at the upper end of the slide rail; the roller brackets are connected with the cables; and the roller brackets move up and down along the slide rail under the pulling of the motors. The automatic cleaning device integrates dust removal, cleaning and maintenance, and automatically operates according to the cycle.

Automatic cleaning device for filter screen of exhaust fan of switch gear room of substation

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Coordinating economic dispatching method for power system containing large-scale wind power based on risk control

Multipath light splitting adapter for testing optical power for intelligent transformer station

Intelligent substation light multichannel beam split adapter for power testing

Automatic cleaning device for filter screen of exhaust fan of switch gear room of substation