Parallel structure power apparatus and control method thereof

A parallel structure power apparatus, comprising:

• an alternating current-direct current (AC-DC) converting unit rectifying an alternating current power to thereby generate a direct current power;
• a main driving unit including a plurality of main switch modules including a pair of main switches corresponding to coils for each phase of a motor and allowing the main switch module to be switched by a control signal to provide the direct current power rectified by the AC-DC converting unit to the coil of each phase and to provide magnetic force generated by magnetic flux of the coil of each phase to a rotor;
• a sub-driving unit including a plurality of sub-switch modules including a pair of sub-switches corresponding to the coils for each phase of the motor and allowing the sub-switch module to be switched by the control signal to provide the direct current power rectified by the AC-DC converting unit to the coil of each phase and to provide the magnetic force generated by the magnetic flux of the coil of each phase to the rotor;
• a temperature sensor unit measuring and outputting a temperature of each of the main switches of the plurality of main switch modules of the main driving unit and a temperature of each of the sub-switches of the plurality of sub-switch modules of the sub-driving unit;
• and
• a controlling unit separately controlling the main driving unit or the sub-driving unit according to a state of the motor to rotate the motor and controlling the main driving unit or the sub-driving unit so that a corresponding main switch in the main switch module of the main driving unit or the sub-switch in the sub-switch module of the sub-driving unit which is being driven at a measured temperature of a predetermined temperature or more is turned off and the main switch in the main switch module of the main driving unit or the sub-switch in the sub-switch module of the sub-driving unit which is in a corresponding stop state is driven in the case in which the measured temperature of the predetermined temperature or more is found among the measured temperatures of the respective main switches of the plurality of main switch modules and the respective sub-switches of the sub-switch modules measured by the temperature sensor unit.

A parallel structure power apparatus, comprising:

• an alternating current-direct current (AC-DC) converting unit rectifying an alternating current power to thereby generate a direct current power;
• a main driving unit including a plurality of main switch modules corresponding to coils for each phase of a motor and allowing the main switch module to be switched by a control signal to provide the direct current power rectified by the AC-DC converting unit to the coil of each phase and to provide magnetic force generated by magnetic flux of the coil of each phase to a rotor;
• a sub-driving unit including a plurality of sub-switch modules corresponding to the coils for each phase of the motor and allowing the sub-switch module to be switched by the control signal to provide the direct current power rectified by the AC-DC converting unit to the coil of each phase and to provide the magnetic force generated by the magnetic flux of the coil of each phase to the rotor;
• and
• a controlling unit controlling the main driving unit or the sub-driving unit according to a state of the motor to rotate the motor and turning off the main driving unit or the sub-driving unit which is being driven and driving the main driving unit or the sub-driving unit which is in a stop state when a malfunction is found in the main driving unit or the sub-driving unit which is being driven.

A control method of a parallel structure power apparatus, the control method comprising:

• converting, by an alternating current-direct current (AC-DC) converting unit, an alternating current power into a direct current power and providing the converted direct current power;
• generating, by a controlling unit, a control signal according to a state of a motor to control a main driving unit or a sub-driving unit;
• measuring and outputting, by a temperature sensor unit, a temperature of the main driving unit or the sub-driving unit;
• and
• changing and operating, by the controlling unit, the main driving unit or the sub-driving unit which is being driven to the main driving unit or the sub-driving unit which is in a stop state when the temperature of the main driving unit or the sub-driving unit measured by the temperature sensor unit is a predetermined temperature or more.

A control method of a parallel structure power apparatus, the control method comprising:

• converting, by an alternating current-direct current (AC-DC) converting unit, an alternating current power into a direct current power and providing the converted direct current power;
• generating, by a controlling unit, a control signal according to a state of a motor to control a main driving unit or a sub-driving unit;
• measuring and outputting, by a temperature sensor unit, a temperature of each of main switches of a plurality of main switch modules of the main driving unit and a temperature of each of sub-switches of a plurality of sub-switch modules of the sub-driving unit;
• and
• turning off, by the controlling unit, a corresponding main switch in the main switch module of the main driving unit or a sub-switch in the sub-switch module of the sub-driving unit which is being driven at a measured temperature of a predetermined temperature or more and driving the main switch in the main switch module of the main driving unit or the sub-switch in the sub-switch module of the sub-driving unit which is in a corresponding stop state in the case in which the measured temperature of the predetermined temperature or more is found among the measured temperatures of the respective main switches of the plurality of main switch modules and the respective sub-switches of the sub-switch modules measured by the temperature sensor unit.