Multi-channel generating system

[Detailed Description of the Invention]

This invention relates to the multiplex channel power generator which has the circuit where it was improved for detecting a multiplex channel power generator, especially an insufficient speed state. In order to supply current to load, a dynamo can be connected in parallel and multiplex channel operation can be carried out. For example, in the case of 4 engine airplanes, four-channel operation is performed, and each engine is a motor and intermediary To have to each channel. If the motor of one channel carries out an operation stop, it will become the tendency for a motor to be moved by the rotation child of a dynamo. The result by which voltage is impressed to the stator of the channel which that this is desirable does not have and has stopped from the channel currently operated is invited. Generally the Overdrive (overrunning) clutch is combined between the output side of a constant-speed degree actuator, and the rotation child of a dynamo. For example, please refer to a U.S. Pat. No. 3576143 specification. The unified constant-speed degree actuator and the dynamo device which has a Overdrive clutch which slips when the speed of a motor falls to this specification below at the minimum speed are shown. The drive joint pressure between the constant-speed degree actuator of a device and the rotation child of a dynamo portion decreases simultaneously, and the insufficient speed pressure switch operates in end. A signal is given to a dynamo control device with this switch, energizing voltage is removed from the magnetization machine of a dynamo, and, as for the channel concerned, a track contact machine is electrically separated from a multiplex channel power generator by Open up and it. A dynamo control device receives electric power from the permanent magnet dynamo (PMG) attached to the rotation child of a dynamo. Since it is various, it is desirable to remove an insufficient speed pressure switch from a constant-speed degree actuator. Supposing an insufficient speed switch is allocated near the motor and the 1st reason has a dynamo control part in a remote place later on, it is because a considerable quantity of conductor copper quantities can be saved by removing an insufficient speed switch. For example, in the case of 4 commercial engine airplanes, about 300 meters (1000 feet) interconnection wire is omissible. This artificer developed the improved constant-speed degree actuator and the motion device of one which is used for the multiplex channel power generator which does not need use of an insufficient speed pressure switch. According to this, use of the interconnection wire in a device is pressed down by the minimum, and the number of parts in a device can be decreased. A multiplex channel power generator supplies current for carrying out the outline of the present invention at load. It is electrically connected in parallel and a channel has a similar structure later on. Each channel has a motor which drives a constant-speed degree actuator, and, on the other hand, a constant-speed degree actuator drives a dynamo. During an operation stop, the Overdrive clutch arranged between the output side of a constant-speed degree actuator and a dynamo starts a slide, and separates the rotation child of a dynamo from a constant-speed degree actuator mechanically. The permanent magnet dynamo (PMG) directly combined with the output side of the constant-speed degree actuator generates the signal which has the frequency proportional to the speed of a constant-speed degree actuator. The signal from PMG is given to a dynamo control device, and is compared with the signal with which a speed equal to the permission minimum speed is expressed there. The speed of a constant-speed degree actuator is lower than the above-mentioned minimum speed, and a dynamo control device separates the channel under operation stop into a Noodle case from a multiplex channel power generator electrically, and intercepts to it the energizing voltage given to the dynamo. This circuit is not affected by a misbelief item like short transitional turbulence. Although one object of the present invention is not provided with the insufficient speed pressure switch, there is a constant-speed degree actuator which can generate insufficient speed information in providing the multiplex channel power generator formed in each channel. Other objects of the present invention are to provide the multiplex channel power generator with which each channel is provided with PMG connected to the outgoing end of the constant-speed degree actuator which controls the magnetization machine and track contact machine of a dynamo of a multiplex channel power generator. Other objects of the present invention are to provide the constant-speed degree power generator of one which has PMG directly combined with the output of the constant-speed degree generator portion which gives speed information to Rotation speed which detects an insufficient speed state. Other objects and features of the present invention will become clear from explanation of the following which refers to an accompanying drawing. With reference to Drawing 1, one channel of conventional multiplex channel power generator 10 is shown. This single channel 12 supplies electric power to load 14, and the channel (not shown) of an additional similar structure is connected to bus line 16. Since the channel of all the Why of multiplex channel power generator 10 is similar, only channel 12 will be explained here. Motor 18 is mechanically combined with the input side of a constant-speed degree actuator like constant-speed degree actuator 20 of unified drive power generator 22. Unified drive power generator 22 can be made into the thing of the model currently indicated by the U.S. Pat. No. 3576143 specification, for example. Constant-speed degree actuator 20 is combined with dynamo 22 via Overdrive clutch 24. Insufficient speed pressure switch 28 which answers the output speed of constant-speed degree actuator 20 generates a signal in dynamo control device 30. Dynamo control device 30 receives the electric power from a permanent magnet dynamo, i.e., PMG36. Insufficient speed pressure switches are the ON which answers the pressure of a constant-speed degree actuator/an off-switch. The output speed of a constant-speed degree actuator increases during starting of motor 18, and the pressure in a constant-speed degree actuator increases in proportion to the increase in speed. If sufficient speed is reached at the minimum, the axis or stem of a flyball speed regulator will move, an oil pressure signal will occur, insufficient speed pressure switch 28 will be bolted by this oil pressure signal, and information will be given to dynamo control device 30. When the output speed of a constant-speed degree actuator is higher than the minimum sufficient speed, dynamo control device 30 controls the opening-and-closing position of voltage and track contact machine 34 given to magnetization machine 32 of dynamo 26. Dynamo control device 30 which answers insufficient speed pressure switch 28 opens track contact machine 34, when it falls to a point lower than the minimum angular velocity by which the output of a low-speed degree actuator is needed for proper dynamo operation at the angular velocity. As for dynamo control device 30, during an operation stop of motor 18, the output speed of constant-speed degree actuator 20 is detected by insufficient speed pressure switch 28. It maintains in the state where track contact machine 34 was closed, and supplying electric power to magnetization machine 32 is continued until it falls to below the minimum speed. PMG36 is combined with the axis of dynamo 26 (please refer to Drawing 1 of an above-mentioned United States patent.). PMG adjoins bearing 52 and is provided in rotation child's 54 left end. It is used for the frequency information from PMG detecting the speed state of dynamo 26. Next, with reference to Drawing 2, one channel 38 of multiplex channel power generator 40 by the present invention is explained. It is connected to similar composition at Then and load bus line 39, and other channels supply electric power to load 41. Motor 42 is mechanically combined with a constant-speed degree actuator like constant-speed degree actuator 44 of unified drive power generator 46. PMG48 is directly combined with the axis of constant-speed degree actuator 44. The signal from PMG is the speed information on the output of a constant-speed degree actuator. The frequency of the signal from PMG48 is proportional to the speed of a constant-speed degree actuator directly. Overdrive clutch 50 is combined between PMG48 and the axis of dynamo 52 and magnetization machine 58. During starting, constant-speed degree actuator 44 exceeds a bigger level than speed sufficient by the minimum, and this state is detected by PMG48. This sufficient speed state is detected in the circuit in dynamo control device 56, voltage is given to magnetization machine 58, and track contact machine 60 is bolted. By motor 42 carrying out an operation stop, when it falls to below from speed with a speed sufficient by the minimum from constant-speed degree actuator 44, Overdrive clutch 50 slips. Dynamo control device 56 diminishes magnetization machine 58, and opens track contact machine 60, and, thereby, dynamo control device 56 separates the channel concerned from a power generator, when the signal showing the frequency and reference frequency of a signal is compared and the signal from PMG48 displays an insufficient speed state. With reference to Drawing 3, the block diaphragm of the circuit provided in dynamo control device 56 which detects an insufficient speed state is shown in this figure. The output from PMG is a sine wave signal, and the frequency is proportional to each speed of the output of a constant-speed degree actuator. The signal from PMG48 is supplied to plastic surgery machine 62, it is operated orthopedically there, and a sine wave input signal is made equivalent by the rectangle wave. The output of plastic surgery machine 62 is supplied to one shot circuit 64. Whenever one shot circuit 64 receives the pulse from plastic surgery machine 62, it generates a pulse in outgoing end Q, and it generates a reversal pulse in an outgoing end. The width of the pulse from Q must be equal to the width of Bals from plastic surgery machine 62, or must be smaller than it again. Therefore, the repetition frequency of the pulse from one shot 64 is proportional to the frequency of the output speed of a constant-speed degree actuator. If repetition frequency increases and, as for the length of a pulse, the pulse width of short Nuclear and Q pulse will become equal to the pulse width of a pulse, the device will operate at the operating point henceforth called a setting up point. This setting up point can express operation on request frequency (for example, 400 Hz), and can change it by adjusting the pulse width from one shot 64. output pulse [ from one shot 64 ] Q -- reaching -- it is impressed by the difference input end of low pass filter 66 for addition. The output of addition low pass filter 66 is the voltage of the size which is proportional to the frequency error from a setting up point directly. For example, the reference voltage showing the minimum speed of the request which is speed with synchronous speed equal to 95% is compared with the voltage from addition wave filtration machine 66 by comparison machine 68. When the voltage from addition wave filtration machine 66 is smaller than a standard signal, it is considered that an insufficient speed state exists. When the insufficient speed state acquired from comparison machine 68 carries out Handed over continuation at the time set up beforehand, an output is generated from time delay circuit 70. Time delay circuit 70 makes the work which protects a device from short transitional turbulence. The length of time delay must be larger than the longest temporal duration which speed trips and becomes the outside of the range by an operator although it is selectable. This time length is 0.5 second thru/or 2 seconds typically. Next, with reference to Drawing 4, the block diagram shown in Drawing 3 is described in detail. The signal from PMG48 is supplied to plastic surgery machine 62 via resistors 72 and 74. The negative input edge of operational amplifier 76 is connected between resistor 72 and 74, and the voltage impressed to Re is proportional to the input voltage from PMG48. The positive input edge of operational amplifier 76 is connected to the outgoing end of installed resistor 78 and operational amplifier 76 via resistor 80. The hysteresis of operational amplifier 76 is determined by choosing resistors 78 and 80 suitably. The output of operational amplifier 76 is supplied to the voltage divider which comprises resistors 82 and 84. The input edge of one shot 64 is connected between resistor 82 and 84. The output of one shot 64 is a pulse which has the pulse width determined by choosing resistor 86 and capacitor 88 suitably. The pulse repetition frequency of one shot 64 which outgoing-end Q Reaches is the same as that of the signal from pulse shaper 62. signal Q -- reaching -- activity low pass filter 66 is supplied. By transmitting Q and the difference ingredient of a signal, the noise in Supply mode can be removed and the electric power supply effect in a setting up point decreases. Resistor 90 and capacitor 92 form the simple delay circuit which carries out wave filtration of the pulse from Q outgoing end of one shot circuit 64, and give voltage to resistor 94. Similarly, resistor 96 and capacitor 98 form the delay circuit which carries out wave filtration of the signal from the terminal of one shot 64, and give voltage to resistor 100. Resistor 94 is connected to the negative input edge of operational amplifier 102, and resistor 103 is connected to the positive input edge of operational amplifier 102. The difference of the voltage in the positive and negative input edge of operational amplifier 102 is amplified, and is outputted to track 104. The size of the voltage of track 104 is proportional to the incorrect error from a setting up point. The resistor and capacitor circuit 106,108 which were adjusted carry out wave filtration of the signal of the negative and positive input terminal of operational amplifier 102, respectively. The voltage from activity low pass filter 66 is supplied to the negative input edge of operational amplifier 110 via resistor 112 of comparison machine 68. Resistors 114,116 and 118 combined with positive voltage V form a voltage divider, and the standard signal compared with the voltage from activity low pass filter 66 with this voltage divider is set up. When the operational status of a device is not in an insufficient speed state, the voltage of the positive input edge of operational amplifier 110 is over the voltage of a negative input edge. Under this state, output voltage is obtained from operational amplifier 110. When the voltage of the negative input edge of operational amplifier 110 exceeds the voltage of a positive input edge, an insufficient speed state is detected. In that case, the output voltage from operational amplifier 110 is not obtained. Time delay circuit 70 accomplishes the work keep a device from being affected according to the short transitional turbulence to which the output of operational amplifier 110 originates in a low level from Noodle squirrel To for a short time at Summer or an OFF state. If it states concretely, the output of amplifier 110 is combined with transistor 120 via bias resistors 122 and 124. As stated previously, the output of operational amplifier 110 is positive during the usual operation. This right voltage is impressed to the base of transistor 120, makes the transistor an electrical connection, and connects the positive input edge of capacitor 126 and operational amplifier 128 with a ground too hastily. Resistors 130 and 132 which have voltage V combined form a partial pressure circuit, and give reference voltage to the negative input edge of operational amplifier 128. If the voltage of the positive input edge of operational amplifier 128 exceeds the voltage set up with voltage dividers 130 and 132, voltage will be generated from outgoing end 134. Only sufficient time for transistor 120 to charge capacitor 126 to +V by resistor 134 produces this at the time of an OFF state and Noodle. The output from time delay circuit 70 is combined with the circuit of common knowledge in dynamo control device 56 for controlling the ON/OFF state of magnetization machine 58 and track contact machine 52. Next, with reference to Drawing 5, allocation of a constant-speed degree actuator and the Overdrive clutch between dynamos is explained briefly. Gear 136 currently fixed to sleeve 138 with the output of constant-speed degree drive 44 drives. The main field winding 140 of PMG36 is also being fixed to sleeve 138. Axis 142 of the dynamo is attached to the left edge part by bearing 144, and, on the other hand, bearing 144 is supported by housing 146. Overdrive clutch 148 combines sleeve 138 with axis 142, and sleeve bearings 150,152 and 153 are attached to the flank of Overdrive clutch 148. The output from PMG36 is taken out from winding 156.

[Brief Description of the Drawings]

The block diagram which shows the single channel of the multiplex channel power generator with which Drawing 1 is known conventionally, The block diagram of the single channel of the multiplex channel power generator according [ Drawing 2 ] to the present invention, Drawings 4 are a block diagram of the circuit where Drawing 3 generates insufficient speed information, and a circuit schematic illustration of the circuit shown in Drawing 3, And Drawing 5 is a transverse cross section of the Overdrive clutch provided between the rotation child of the permanent magnet dynamo (PMG) and dynamo which were attached to the unified constant-speed degree drive power generator, and them. 42 ...... A motor, 44 ...... A constant-speed degree actuator, 48 ...... A permanent magnet dynamo (PMG), 50 ...... A Overthrow clutch, 58 ...... A magnetization machine, 52 ...... a dynamo and 60 ...... a track contact machine and 41 ...... load and 56 ...... a dynamo control device and 62 ...... a plastic surgery machine and 64 ...... a one shot circuit and 66 ...... low-pass Wave device for addition, and 68 ...... a comparison machine and 70 ...... a time delay circuit.