Abstract: The present invention relates to an energy resource-grid-load automatic control system of smart microgrid and control methods thereof, which belong to the field of microgrid control and electrical technology. The energy resource-grid-load automatic control system includes a distributed renewable energy power generation module, a distributed renewable energy inverter module, a conventional power generation module, a user load module, a bidirectional grid-connected control module, a distributed renewable energy intelligent optimizing power generation control module, an energy storage module, an intelligent energy storage unit adjuster and a storage battery pack.

Abstract: A control device of an electric actuator adapted to perform a forward-reverse movement includes a control unit adapted to be operated in a forward direction or a reverse direction in accordance with the forward-reverse movement of the electric actuator. It also includes a pilot circuit, which is connected to the control unit and which generates a forward pilot pressure or a reverse pilot pressure in accordance with the forward operation or the reverse operation of the control unit. The control device has a differential pressure acquiring unit that acquires a differential pressure between a pilot pressure corresponding to an operation direction of the control unit and a pilot pressure, in a direction opposite to the operation direction, and it has a control command generator that generates a control command for controlling the electric actuator based on the differential pressure acquired by the differential pressure acquiring unit.

Abstract: A chatter vibration suppressing method includes acquiring a moment of inertia of a rotating body, recording a value indicating the acquired moment of inertia into a machining program, and calculating a variable amplitude and a variable period when a rotation speed of the rotating body is varied in order to suppress chatter vibration from the value indicating the moment of inertia recorded in the machining program and the maximum input power of a motor for rotating the rotating body.

Abstract: A pumping system includes a pump for moving water. In one aspect, this is in connection with performance of an operation. The system includes a variable speed motor operatively connected to drive the pump. A value indicative of flow rate of water is determined and the motor is controlled to adjust the flow rate indicative value toward a constant. A value indicative of flow pressure is determined and the motor is controlled to adjust the flow pressure indicative value toward a constant. A selection is made between flow rate control and flow pressure control. In another aspect, the pump is controlled to perform a first operation, and is operated to perform a second water operation. Control of operation of the pump to perform the first water operation is altered in response to operation of the pump to perform the second operation.

Abstract: Various arrangements of controlling a temperature of an enclosure are presented. A setpoint temperature may be received by a thermostat from a user via an energy management device. The setpoint temperature may indicate a desired temperature of the enclosure. The thermostat may be operated in accordance with the setpoint temperature. Energy consumption associated with the thermostat may be monitored. The monitored energy consumption may be compared to an energy usage profile. Based on such a comparison, at least one adjustment to the operation of the thermostat may be determined that will reduce energy consumption associated with the thermostat as compared to the energy consumption associated with operating the thermostat in accordance with the setpoint temperature.

Abstract: A process controller a procedure module that includes instructions for executing a procedure, and a plurality of supplemental procedure modules, each of which includes instructions for executing one of a plurality of supplemental procedures. The process controller also includes a process monitor processor configured to receive an input electronic signal indicative of a status of a process feature, apply logic based on the input electronic signal, and generate an output electronic signal in response to the input electronic signal. The process controller also includes a sequence engine processor configured to execute the procedure, receive the output electronic signal, apply logic based on the output electronic signal, select one or more of the plurality of supplemental procedures based on the received output electronic signal, and execute the selected one or more of the plurality of supplemental procedures.

Abstract: A method of distributing electric current to electrical outlets, and a program to implement same, including the steps of supplying electric current to the electrical outlets not yet connected to an electronic device upon receipt of a distribution request from the electrical outlets; determining the instantaneous current intensity supplied to the electrical outlets; comparing the determined current intensity to a threshold referred to as the maximum threshold; and when the predetermined current intensity is greater than the maximum threshold, selecting an electrical outlet and terminating the supply of electric current to the selected electrical outlet. The steps of selection and termination being carried out while continuing the step of supplying electric current to the electrical outlets not yet connected to an electronic device upon receipt of a distribution request from the electrical outlets.

Abstract: A double eccentric positioning apparatus uses two equal offset eccentric bushings to accurately position a tool in two dimensions. Miniature servo motors and precise gearing control the rotation of each eccentric bushing, which controls the direction of the offset vectors. The offset vectors are used to determine the final position of the drill bushing. The desired rotation angles can be mathematically calculated based on desired position. The inner eccentric bushing is located concentric to the offset of the outer eccentric bushing. This allows any position, within a radius of two times the eccentric offset, to be achieved. The use of worm gearing on the eccentric bushings prevents back-driving of the servo motors, due to the lead angle of the worm gears, and the friction between the worm wheel and worm gear.

Abstract: A combination of an articulated apparatus having an electromechanical actuator, a power supply and a control unit with a unique electronic address, and a cordless controller, the cordless controller becoming exclusively electrically paired to the articulated apparatus when common signals therefrom to the control box include the unique electronic address, thus enabling control of the articulated apparatus when located near the other apparatus having other electronic addresses.

Abstract: A method for retrieving process, operation or maintenance relevant data of a process plant by way of a field monitor, wherein multiple wireless field device networks are present in the process plant. Data from the field devices from different field device networks are gathered by way of the field monitor. Plant information from the field devices belonging to different field device networks are displayed on a display of the field monitor to a user regardless of the respective field device network they belong to.

Abstract: Systems and methods for detecting and using equipment location in a building management system are provided. Location information is measured by one or more measurement devices at a physical location of building equipment. The measured location information is used to automatically determine the physical location of the building equipment in or around a building. The location of the building equipment is integrated with an architectural model of a building served by the building equipment and a graphical visualization of the integrated model is generated. The location of the building equipment can be used to automatically associate the building equipment with other building equipment or with a building zone, to automatically generate control parameters and control algorithms, and/or to generate an augmented reality display of the building equipment in the building.

Abstract: A controller for a building management system includes a first data interface configured to receive data from the building management system and a processing circuit including a processor and a memory device storing a fault detection rule having an initial threshold value. The processing circuit is configured to detect a first fault in the building management system using the stored fault detection rule having the initial threshold value and to use the data from the building management system to determine whether an adjustment to the stored fault detection rule is needed. In response to a determination that an adjustment to the stored fault detection rule is needed, the processing circuit is configured to calculate a new threshold value for the stored fault detection rule and update the stored fault detection rule by replacing the initial threshold value with the new threshold value.

Abstract: Method, system and computer executable instructions for controlling a process that include collecting data sets for a process having an initial base layer DCV value and a corresponding initial ICV value, a rate-time value and a move series value, receiving a target ICV value and determining whether a change in DCV value is needed. The method checks for any DCV limits and implements a move series to the DCV setting. The rate-of-change of the ICV is calculated along with the estimated time needed to reach the target ICV value based on the rate-of-change. The time needed to reach the target ICV value is compared with the rate-time and the DCV move series is discontinued when the time needed to reach the target ICV value is less than a predetermined percentage of the rate-time value.

Abstract: A technique is disclosed for reducing an error in a controlled variable via model predictive control. A predicted error in the controlled variable is determined for a forward-looking control horizon based upon measured or computed variables. The integral of the predicted error is computed. If the error or the integral exceed a tolerance for a determined time period, the model predictive control algorithm is modified to drive the error or the integral to within a tolerance. The modifications to the control algorithm may include changes to coefficients for terms based upon the error and/or the integral of the error.

Abstract: A utility network powered by a power source has a plurality of substations enabled to power electrical equipment in a participant site. At least one substation is disconnected from the utility network and is to be reconnected via a substation with a power constraint. A processor determines how much power should be shed in a participant site of the substation with the power constraint to allow reconnection of the substation that is disconnected. The processor initiates a Demand Response signal to power consuming equipment in the participant site of the substation with the power constraint to shed power. After shedding power based on the Demand Response signal, the substation that was disconnected is connected to the utility network by closing a switch.

Abstract: A network of collection, charging and distribution machines collect, charge and distribute portable electrical energy storage devices. To charge, the machines employ electrical current from an external source. As demand at individual collection, charging and distribution machines increases or decreases relative to other collection, charging and distribution machines, a distribution management system initiates redistribution of portable electrical energy storage devices from one collection, charging and distribution machine to another collection, charging and distribution machine in an expeditious manner. Also, redeemable incentives are offered to users to return or exchange their portable electrical energy storage devices at selected collection, charging and distribution machines within the network to effect the redistribution.

Abstract: A system is provided that is configured to receive a manufacturing process plan for a product including a plurality of component parts joined by fasteners, with the manufacturing process plan including process definitions that describe process operations in which component parts are worked to manufacture of the product. The system is configured to generate graphical views for respective process operations of the manufacturing process plan in which fastener locations are worked for installation of respective fasteners to join component parts of the product, and output the graphical views. The graphical view of a process operation may graphically depict one or more component parts and only those of the fastener locations on the one or more component parts worked during the process operation, with any others of the fastener locations on the same or other component parts being hidden from the graphical view.

Abstract: A method to generate a plurality of groups each including at least one of a plurality of elements. The method includes selecting at least one candidate element from the plurality of elements as a candidate to be included in a group, determining whether or not to generate the group including the at least one candidate element selected in the selecting step, based on an element evaluation value associated with each of the at least one candidate element selected in the selecting step, provided that a determination is made to generate the group in the determining step, generating the group including the at least one candidate element selected in the selecting step, and weighting the element evaluation value of each of the at least one element according to how many times the each element is included in already-generated groups to reflect the weighted element evaluation value in next group generation.

Abstract: Accessing an energy management policy for a plurality of devices is described, wherein the devices are coupled with a first structure. The energy usage of the devices is monitored. An energy usage rule and energy usage is then compared. The energy management policy and energy usage is also compared. Based on the comparing, an instruction is generated to modify an energy usage profile of said device to correlate with the energy usage rule associated with the devices and the energy management policy, thereby enabling efficient energy management.

Abstract: A screen printing safety system is provided. The system includes a screen printing machine, and a plurality of zones in the vicinity of the screen printing machine. Each of the zones includes at least one sensor for sensing encroachment past a predetermined point. The sensors are adapted to stop operation of the screen printing machine when encroachment is sensed in at least one of the plurality of zones.